Answer: it’s A
Step-by-step explanation:
Determine if the graph shows a proportional relationship. Graph with x axis labeled distance miles and y axis labeled time hours. A line begins at point 0 comma 0 and continues to the right. Yes, it is proportional because it is a line that intersects with the origin. Yes, it is proportional because the x-axis and y-axis are labeled correctly. No, it is not proportional because the line does not intersect with the origin. No, it is not proportional because the x-axis and y-axis are not labeled correctly.
The correct alternatives are -
Yes, it is proportional because it is a line that intersects with the origin. Yes, it is proportional because the x-axis and y-axis are labeled correctly.What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is the proportional relationship.
A line begins at point (0, 0) and continues to the right.
Direct variation of {y} with {x} means that as {x} increases, {y} increases uniformly with it. Mathematically -
{K} = y/x = constant
Scale factor {K} is a dimensionless value that indicates the constant ratio value indicating direct variation.
Therefore, the correct alternatives are -
Yes, it is proportional because it is a line that intersects with the origin. Yes, it is proportional because the x-axis and y-axis are labeled correctly.To solve more questions on scale factor , visit the link below -
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In building a tent, Jada ties a rope from the top of a pole 3 meters high to a stake that is 4 meters away from the base of the pole. Jada draws this diagram to help; find the angle made between the rope and the ground.
Indicate whether Jada could use each of the equations to find the value of x.
The equations that enable us to compute x are tanx=3/4 and x=tan⁻¹(3/4)
What are trigonometric functions?In mathematics, trigonometric functions are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. The six trigonometric functions are Sine, Cosine, Tangent, Secant, Cosecant, and Cotangent.
Given here: length of the pole=3m and distance of the stake from the pole=4m and the angle that the rope makes with the pole is x
We know Arctan function is the inverse of the tangent function. It is usually denoted as arctan x or tan⁻¹x. The basic formula to determine the value of arctan is θ = tan-1(Perpendicular / Base).
Thus we have the value of x as
x=tan⁻(perpendicular/Base)
=tan⁻¹(3/4)
=36.87°
Thus the two possible ways to compute the angle x are:
tanx=3/4 and x=tan⁻¹(3/4)
Hence, The equations that enable us to compute x are tanx=3/4 and x=tan⁻¹(3/4)
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a placebo is an actual treatment. question content area bottom part 1 choose the correct answer below. a. the statement is false. a placebo is giving the subjects no treatment at all. b. the statement is false. a placebo is a fake treatment. c. the statement is true. d. the statement is false. a placebo is a process of randomly assigning subjects to treatment groups.
Answer:
The answer is B.
Step-by-step explanation:
A placebo is a fake medicine
You can learn more about a placebo by reading a book called Mesmerized. It basically talks about the origin of the placebo effect and all that.
Jamie has white, blue, and pink shirts. She has black, white, and beige pants. She has black and brown shoes. If she chooses one shirt, one pair of pants, and one pair of shoes, how many unique outfits can she make?
6
8
9
18
Show your work pls
micromedia offers computer training seminars on a variety of topics. in the seminars each student works at a personal computer, practicing the particular activity that the instructor is presenting. micromedia is currently planning a two-day seminar on the use of microsoft excel in statistical analysis. the projected fee for the seminar is $575 per student. the cost for the conference room, instructor compensation, lab assistants, and promotion is $6,930. micromedia rents computers for its seminars at a cost of $130 per computer per day. (a) develop a model for the total cost (c) to put on the seminar. let x represent the number of students who enroll in the seminar. c
The total cost (c) to put on the seminar is c = 6,930 + 130x + 575x, where x represents the number of students who enroll in the seminar.
The total cost (c) to put on the seminar can be modeled using the following equation -
c = 6,930 + 130x + 575x
here, x represents the number of students who enroll in the seminar.
The above equation takes into account the fixed costs of the conference room, instructor compensation, lab assistants, and promotion (6,930), as well as the variable costs of renting computers (130x) and the seminar fee charged to each student (575x).
As more students enroll in the seminar, the total cost will increase due to the additional computer rental and seminar fee costs.
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Minimum wage at Ben's Burger Bar was $8.10 an hour, and later increased to $15 an hour. What was the percent increase?
The increase in the minimum wage from $8.10 to $15, indicates that the percentage increase in the minimum wage is 85.[tex]\overline{185}[/tex]%
What does a percentage of an amount represent?A percentage represent the number, amount, proportion or ratio of an item to another (possibly larger) item per hundred (100) units of the comparison or larger item.
Percentages, quantitatively describes the idea of the amount of a substance. It is a measure of the amount or occurrence of an item.
The specified original minimum wage at Ben's Burger = $8.10
The new amount to which the minimum wage is increased = $15
The percentage increase can be obtained using the formula;
[tex]\% \ increase = \frac{New - Original}{Original} \times 100[/tex]
The percentage increase is therefore; ((15 - 8.10)/8.1) × 100 = 85.[tex]\overline{185}[/tex] %
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A middle school has 1200 students. Of these, 25% are in the
eighth grade. How many students are in the eighth grade?
Answer: 300
Step-by-step explanation:
Step 1:
Multiply:
1200*0.25=300
Answer: 300
Step-by-step explanation: Just multiply 1200 x 1/4 and that's your answer
the list below tracks owners and their dogs. we sometimes need to change an owner's phone number. if we change the phone number for the owner in row 1 (johnson, james), but forget to change his phone number in row 9 also we now have a mistake in our list. what is this term for this type of mistake?
If row 3 were to be deleted, it would show a deletion anomaly. This is so that this entry won't be deleted along with the entire database for the Legend book.
This oddity happens when we change a few rows in the database, and if it causes the table to become inconsistent. Updation anomalies are this kind of abnormality.
Due to the duplicate data in each of these rows, this is an update anomaly. If that data is altered in one row but not the other, there will be an update anomaly. There will be two addresses if we miss even one row during the update, which will result in inconsistent and incorrect databases.
If row 3 were to be deleted, it would show a deletion anomaly. This is so that this entry won't be deleted along with the entire database for the Legend book. There is nothing about this book in any other row. Deleting one row wouldn't result in the entire disappearance of the book data because all other books are represented in at least two rows.
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HELP PLEASEEEEE
4.6.3 Quiz: Transformation of Parent Functions
Question 2 of 10
If you apply the changes below to the cubic parent function, F(x) = x³, what is
the equation of the new function?
• Reflect across the x-axis.
Vertically compress by multiplying by
A. H(X)-(2x)
B. G(x)=(2x)³
C. (x)--²
D. K(x)--2x²
The equation of the new function is f'(x) = -1/2x³
How to determine the new functionFrom the question, we have the following parameters that can be used in our computation:
F(x) = x³
The transformations are given as
Reflect across the x-axis.Vertically compress by multiplying by 1/2The rule of the above transformations is
f'(x) = -1/2f(x)
substitute the known values in the above equation, so, we have the following representation
f'(x) = -1/2x³
hence, the equation is f'(x) = -1/2x³
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Your study of a function, g, has revealed the following information:
g(1) = 22
9 (3) = -5
g (5) = 6
Select all true statements.
When 1 is an input, 22 is an output
The point (-5, 3) lies on the graph of the function.
The solution to g(x) = -5 is x = 3.
When 6 is an input, 5 is an output.
The point (-5, 3) lies on the graph of the function.
The point, (5, 6) lies on the graph of the function.
All the given statements for the function g(x) is true.
What is a function?
In mathematics, a function is a unique arrangement of the inputs (also referred to as the domain) and their outputs (sometimes referred to as the codomain), where each input has exactly one output and the output can be linked to its input.
For the function g(x) -
When the value of x = 1, then the value of y = 22.
When the value of x = 3, then the value of y = -5.
When the value of x = 5, then the value of y = 6.
When 1 is an input, 22 is an output.
The point (-5, 3) lies on the graph of the function.
The solution to g(x) = -5 is x = 3.
When 6 is an input, 5 is an output.
The point (-5, 3) lies on the graph of the function.
The point, (5, 6) lies on the graph of the function.
Therefore, all the statements are true.
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The Magsanoc family was having pizza for snacks. Mrs.
Magsanoc had just placed the toppings on 3
8
of the pizza
when the phone rang and she stopped to answer the phone.
While she was away, Mr. Magsanoc came in and decided to
help his wife complete the pizza. He covered 1
3
before she
returned. How much of the pizza was covered when Mrs.
Magsanoc returned?
urgent answer quick
Answer: We can start by figuring out how much of the pizza was covered before Mrs. Magsanoc returned by adding the portion that she covered before the phone rang to the portion that Mr. Magsanoc covered while she was away.
Mrs. Magsanoc covered 3/8 of the pizza before the phone rang.
Mr. Magsanoc covered 1/3 of the pizza while she was away.
To add the two portions, we need to find a common denominator, which is the least common multiple of 8 and 3. That is 24.
3/8 of the pizza is (3/8) * (24/8) = 3/24
1/3 of the pizza is (1/3) * (24/3) = 8/24
So, the total portion of the pizza that was covered before Mrs. Magsanoc returned is 3/24 + 8/24
Which is 11/24 or 0.458 of the pizza.
Step-by-step explanation:
PLEASE HURRY TEST QUESTION LIMITED TIME!!!
Question-Write the standard form equation of a circle given the center of (-7, -15) and an area of A = π. Show all work for your calculations using the equation editor.
The standard form equation of a circle given the center of (-7, -15) is (x+7)^2+(y+15)^2 = 9.
What is Circle?
All points in a plane that are at a specific distance from a specific point, the center, form a circle. In other words, it is the curve that a moving point in a plane draws to keep its distance from a specific point constant.
What is equation of circle?
(x - h)^2+ (y - k)^2 = r^2 is the formula for the equation of a circle, where (h, k) stands for the circle's center's coordinates and r for the radius. A circle touches the x-axis at (3,0) if it is tangent to the x-axis at that location.
Given;
center (-7,-15) and A = 9π
[tex]S = \pi r^2[/tex]
[tex]r = \sqrt{\frac{A}{\pi} }[/tex]
r = [tex]\pi ^{2}[/tex]
From the equation of circle, we get;
⇒(x - h)^2+ (y - k)^2 = r^2
⇒(x+7)^2+(y+15)^2 = [tex]\pi ^{2}[/tex]
So,The standard form equation of a circle given the center of (-7, -15) is (x+7)^2+(y+15)^2 = 9.
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Martha Burns invested $14,200 in an account that pays 6% interest compounded monthly. Find the future value and the interest she earned on her investment if she kept it for 8 years.
Answer: Martha earned $13,728.12 in interest over 8 years.
Step-by-step explanation:
The future value of Martha's investment can be calculated using the formula:
FV = PV (1 + r/n)^(nt)
Where:
PV = present value (initial investment) = $14,200
r = annual interest rate = 6%
n = number of times the interest is compounded per year = 12 (monthly)
t = number of years the investment is held = 8
Plugging in the values, we get:
FV = 14,200(1 + 0.06/12)^(12*8) = $27,928.12
The interest earned on her investment is the difference between the future value and the present value:
$27,928.12 - $14,200 = $13,728.12
So Martha earned $13,728.12 in interest over 8 years.
Answer:
$22,920.83
Step-by-step explanation:
assuming 6% is annual rate
so 12 months in a year = 6%/12 = 0.5% per month
so every month she gets (1+0.5%) growth on her previous balance
so for 8 years = 96 months,
she'll get that growth 96 times
so it'll be 14,200 *(1+0.5%) ^ 96 =22,920.83
Determine the monthly payment of a $4,500 loan at 12% interest for 48 months.
The monthly payment on a loan of $4,500 at 12% interest for a period of 48 months is: $128.34.
How to Calculate the Monthly Payment on a Loan?The monthly payment for a $4,500 loan at 12% interest for 48 months can be calculated using the formula:
M = P * (r(1 + r)^n) / ((1 + r)^n - 1)
Where:
M = the monthly payment
P = the principal (the amount of the loan)
r = the monthly interest rate (12% divided by 12 months)
n = the number of payments (48 months)
So the calculation is:
M = 4,500 * (0.01(1 + 0.01)^48) / ((1 + 0.01)^48 - 1)
This comes out to be $128.34.
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Greg forms two numbers with digits 1,2,3,4,5 and 6. Both numbers have three digits, and each digit is used only once. Greg adds these two numbers. What is the greatest sum Greg can obtain?
The greatest sum Greg can obtain is 975 by adding two numbers. Greg should use the digits 6,5 and 4 for the first number and 3,2 and 1 for the second number
Greatest sum :
654 + 321 = 975
To get the greatest sum, Greg should use the digits 6,5 and 4 for the first number and 3,2 and 1 for the second number. This is because these are the largest digits and by putting them in the leftmost side of the number, it will make the number the largest possible number.
What is the greatest sum?The greatest sum is the maximum value that can be obtained from adding two or more numbers. It is the largest possible outcome from an addition operation. The answer or result obtained by adding two or more numbers or terms is known as the sum. As a result, the sum is a way to combine things. To put it another way, adding two or more numbers together to get a new total is called the sum.
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The dosage of a certain medication is 1.5 ounces for every 50 pounds of body weight. Devon is 190 pounds and on this medication. If he loses 15 pounds, what will his new dosage be?
The dosage for Devon's body weight is 5.25 ounces.
Calculating the dosage of medication:Note that 50 pounds of body weight require 1.5 ounces of medication,
Here by dividing the given amount of medication by 50 find the amount of medication for 1 pound of body
Now multiply the result by the present body weight of the Devons.
Here we have
The dosage of the medication is 1.5 ounces for every 50 pounds
Weight of Devon = 190 pounds
If he loses 15 pounds, present Devon's weight = 190 - 15 = 175
Dosage for Devon's body = [tex]\frac{1.5}{50} \times 175[/tex]
= [tex]0.03 \times 175[/tex]
= 5.25
Therefore,
The dosage for Devon's body weight is 5.25 ounces.
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Today only, a table is being sold for $282 . This is 30% of its regular price. What was the price yesterday?
Answer: $940
Step-by-step explanation:
30% can also be represented as 0.3.
You can solve and find 100%, or the original price, by cross-multiplying.
282 x 1 = 282
282 / 0.3 = 940
The price yesterday was $940.
Segment LP = 3. Find the length of L'P' if LP is dilated with a scale factor of -4
The length of the segment after dilation with a scale factor of -4 is -12.
What is scale factor?The ratio of the scale of an original thing to a new object that is a representation of it but of a different size is known as a scale factor.
What is dilation?Resizing an item uses a transition called dilation. Dilation is used to enlarge or contract the items. The result of this transformation is a picture with the same shape as the original. However, there is a variation in the shape's size.
Given that the segment LP is dilated with a scale factor of -4. In simple words, the length of the segment is increased to -4 times of its original length.
This is represented as follows:
L'P' = -4 (LP)
Substitute the value of LP = 3:
L'P' = -4 (3)
L'P' = -12
Hence, the length of the segment after dilation with a scale factor of -4 is -12.
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Frank owes $212 on his credit card. Then, he charges $105 more. What is the new balance on Frank's credit card? Write your answer as an integer.
Answer: Frank owes $212 on his credit card and then charges $105 more, so the new balance on Frank's credit card is:
$212 + $105 = $317
So the new balance on Frank's credit card is $317.
Step-by-step explanation:
David and James are at the Famous Nathan's Hot Dog Eating
Championships of the world in New York. David was late starting, so
James already had 6 hotdogs before David started eating. From then on,
James ate a hot dog every two minutes while David stuffed 1.25 hot dogs
a minute. How many minutes does it take David to catch up with James?
Answer: We can start by using the following formula to find the time it takes for David to catch up with James:
time = (James' lead) / (David's rate - James' rate)
In this case, James' lead is 6 hotdogs, and we know that James eats 1 hotdog every 2 minutes, so his rate is 1/2 hotdog per minute. David's rate is 1.25 hotdogs per minute.
So, substituting these values into the formula:
time = (6) / (1.25 - (1/2))
time = 6 / (0.75)
time = 8 minutes
So it takes David 8 minutes to catch up with James.
Step-by-step explanation:
35% of the dogs at a dog show are German shepherds. 10% of the dogs are poodles, 45% of the dogs are spaniels, and the rest were retrievers.
Witch statement is not true
A) There are more spaniels than any other type of dog at the show.
B) Retrievers account for 15% of the dogs at the show.
C) Retrievers and German shepherds account for 45% of the dogs at the show.
D) There are more German shepherds than retrievers at the show.
6th grade mathematics.
The information in assertion 2 that says Retrievers make up 15 percent of the dogs at the event is untrue.
What is percentage?A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to compute a percentage of a number, we should divide it by its whole and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the term percent signifies. The letter "%" stands for it.
Given, 35% of the dogs at a dog show are German shepherds. 10% of the dogs are poodles, 45% of the dogs are spaniels, and the rest were retrievers.
Since the rest dog breed was retrievers,
Thus, retrievers = 100- 45-35-10
retrievers = 10%
Therefore, statement 2 which states Retrievers account for 15 percent of the dogs at the show is incorrect.
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Isabel has ounces of almonds to divide equally into bags. In the last bag, she adds an additional ounces of almonds. The equation shown can be used to find , the total number of ounces of almonds in the last bag. How many ounces of almonds are in the last bag?
The equation shown below can be used to find, the total number of ounces of almonds in the last bag.
y = 8/2 + 1 And y = 5 ounces of almonds in the last bag.
What is an equation?
Two algebraic expressions having same value and symbol '=' in between are called as an equation.
Given:
Isabel has 8 ounces of almonds to divide equally into 2 bags
In the last bag, she adds an ounce of almonds.
The equation shown below can be used to find, the total number of ounces of almonds in the last bag.
y = 8/2 + 1
y = 4 + 1
y = 5 ounces of almonds in the last bag
Therefore, 5 ounces of almonds in the last bag
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The complete question:
Isabel has 8 ounces of almonds to divide equally into 2 bags. In the last bag, she adds an additional ounces of almonds. The equation shown can be used to find, the total number of ounces of almonds in the last bag. How many ounces of almonds are in the last bag?
I need help with this problem quickly!
The average number of burgers per person is 96
What are functions?Function, in mathematics, is an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given here; The function f(d) =200d³+542d²+179d+1605
The number of visitors is given by g(d)=100d+321
Thus in 7 days, The total number of burgers sold are given by
f(7)=200×7³+542×7²+179×7+1605
=68600+26558+1253+1605
=98016
And the number of visitors is given by g(7)=100×7+321
=1021
Thus, The average number of burgers per person is given by
Avg= 98016/1021
=96
Hence, The average number of burgers per person is 96
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On a separate piece of graph paper, graph y
1l; then click on the graph until the correct one appears.
Graph the equation y = x + 1l on a separate sheet of graph paper, and then click on the graph to make the right one appear. appears to be a house's roof. From the (0,0) line, it has moved forward one space.
Which graph does not represents a function?The graph of y equal to the value of x minus 3 is the one that needs to be chosen in this challenge. Since these 3 units will now be moved to the right, the vertex will no longer be at the origin, where it normally is. You should choose the graph that has a form similar to what I'm going to create when I move 3 to the right .
The graph cannot represent a function if a vertical line can cross it at two or more different locations. To put it another way, the graph is said to reflect a function if a vertical line drawn anywhere only intersects it once, indicating that each x value has a single corresponding y value.
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A cylindrical rod measures 10 inches long and the circumference of one of its bases is 8π inches. The rod is cut into two equally-sized pieces and then all surfaces are painted.
What is the area that is painted?
Use π≈3.14.
Enter your answer, rounded to the nearest tenth, in the box.
in²
Answer:
see below
Step-by-step explanation:
length = 10
circumference = 2πr = 8 π, so r=4
8π=25.12
cut half so length = 5, so lateral surface = 8π*5 = 40π =125.6
top circle area = πr² = 3.14*4² = 3.14 *16 = 50.24
top & bottom = 2*50.24 = 100.5
so total surface of EACH after cut in half = 100.5+125.6 =226.1
TWO of them = 2*226.1 =452.2
4. The two trapezoids below are similar. What
is the length of segment EF?
24 am
A
D
30 cm
B
C
G.
7.5 cm
X
E
H
Help please
The length of segment EF is 6 cm.
What is Length of Segment?The distance between two ends determines the length of a segment.
A segment may be straight, curved, or both straight and curved.
As the distance between two points on a line, a straight segment is the most basic kind of segment. The positions at the segment's ends are known as the endpoints.
It is possible to determine the length of a straight segment by first calculating the difference between the x- and y-coordinates of the two endpoints.
To determine the overall length of the segment, this information is then combined together. It is slightly more difficult to measure a piece that is curved.
This is so because a curved segment's length is frequently different at each location.
Both trapezoids are similar,
⇒ AB / DC = FE / GH [Sides are in same ratio]
⇒ 24 / 30 = x / 7.5
⇒ x = 6
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a city's population is currently 538,000. if the population doubles every 6 years, what will the population be 12 years from now?
If a city's population doubles every 6 years, the city's population, 12 years from now, will be 2,152,000.
How is the population determined?Every six months, the population increases by two times the current number.
Using multiplication by 2 or 4, we can determine the population in 12 years.
The current population of the city in Year 0 = 538,000
Doubling time = every 6 years
The estimated time = 12 years
In the first six years, the population will be 1,076,000 (538,000 x 2)
In the second six years, the number of people in the city will be 2,152,000 (1,076,000 x 2) or (538,000 x 4)
Thus, in 12 years, the city's population will become 2,152,000 people.
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Answer:
2,152,000
Step-by-step explanation:
GEOMETRY 9.3.5 POINT ON A CIRCLE ASSIGNMENT
RLLY NEED HELP
FULL DOCUMENT??
Suppose that this grid represents the customer’s yard. The bottom left corner is the origin point, (0, 0), and the x- and y- axes represent the two fences. The rose bush is at point (16, 18).
The area of the customer's yard is 580π.
What is distance formula?The distance formula is given as -
d = √(x₂ - x₁)² + (y₂ - y₁)²
Given is that this grid represents the customer’s yard. The bottom left corner is the origin point O(0, 0), and the x- and y- axes represent the two fences. The rose bush is at point P(16, 18).
We can write the area of the customer's yard -
A = πr²
Here -
r = d
r² = d²
We can write -
A = πd²
A = π {(x₂ - x₁)² + (y₂ - y₁)²}
A = π{16 x 16 + 18 x 18}
A = 580π
Therefore, the area of the customer's yard is 580π.
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if yellow (y) color is dominant, and round (r) seed shape is dominant, what is the probability of getting a green wrinkled pea from a yyrr x yyrr cross?
The probability of getting a green wrinkled pea from a yyrr x yyrr cross is 1/4.
A cross was made between a pure round yellow seeded pea plant (RRYY) with wrinkled green seeded pea plant (rryy). The yellow colour is dominant over green and round seed shape is dominant over wrinkled seed shape.
The possibility of the result of any random event is known as probability. This phrase refers to determining the likelihood that any given occurrence will occur.
All of the children were yellow because yellow has a dominant gene over green. The green phenotype was no longer present. To see how the second generation would appear, let the yellow pea plants self-fertilize.
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A truck tire is about 20 inches in diameter. What is the approximate distance the truck tire will travel in 1 full rotation?
The approximate distance the truck tire will travel in 1 full rotation is 62.8 inches.
The total distance travelled by truck on completing one full rotation will be equal to the circumference of the circle. The circumference of the circle is given by the formula -
Circumference = 2πr, where r refers to radius of truck tire.
Radius = diameter/2
Radius = 20/2
Radius = 10 inches
Keep the values in formula to find the distance travelled on full rotation of truck tire.
Circumference = 2×3.14×10
Performing multiplication on Right Hand Side of the equation
Circumference = 62.8 inches
Hence, the distance covered will be 62.8 inches.
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