Each graph below shows a relationship between x andy .
For each graph, determine whether x and y are proportional.
If x and y are proportional, fill in the blank with a number.
Answers
Answer:
graph 1 but im not sure check with someone else.
Step-by-step explanation:
if you divide 10 divided by 2 it gives you 5 and then subtract it by 2.2 = 2.8
there goes your answer.
Answer Each graph below shows a relationship between x and y. For each graph, determine whether x and y are proportional. If x and y are proportional, fill in the blank with a number in simplest form:
Step-by-step explanation:
Related Questions
help asap!!!!!!!!!!!
Answers
Answer:
Step-by-step explanation:
A sludge pool is filled by two inlet pipes. One pipe can fill the pool in 10 days and the other pipe can fill it in 25 days. However, if no sewage is added, waste removal will empty the pool in 39 days. How long (in days) will it take the two inlet pipes to fill an empty pool?
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Answer:
35 days because waste removals will empty the pool in 39 days
6 cm
5 cm
13 cm
Area of figure
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Answer:
option A by symmetry of figure.and then using formula of triangle and rectangle.
Step-by-step explanation:
Guys please helpppp!!!!
An equilateral triangle (all 3 sides are the same length) sits on top of a square. They both share the side AB
Answers
Answer:
6x +15
Step-by-step explanation:
To solve for the perimeter of the triangle, we need to find the length of each side.
(a +b)² = a² +2ab +b²
Let's factorise the expression for the area of the square:
Area of square
= 4x² +20x +25
= (2x +5)²
Since area of square= side ×side, length of a side of the square is the square root of its area. We are also given that the side of the square is AB.
(AB)²= (2x +5)²
Taking the square root of both sides:
AB= 2x +5
The perimeter is the sum of the lengths of all of its sides.
Perimeter of the triangle
= 3(AB)
= 3(2x +5)
= 6x +15
Functions need 4,5 and 6!!! With work please!!
Answers
Step-by-step explanation:
You plug in the number that needs to be plugged in and then you solve like a normal equation.
The temperature during the day was 17°. If the temperature fell
21° at night, what was the temperature at night?
You can earn coins
Answers
Answer:
-4
Step-by-step explanation:
you subtract 21 from 17 and you get -4
eduardo has 4 1/2 yard of rope light. Exactly how many more yard does he need to finish the car's ceiling
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Answer:
2 1/6
Step-by-step explanation:
Because the denominators are different, and there are whole numbers involved, then first make the fractions improper.
4 1/2 -> 9/2
6 2/3 -> 20/3
Next, make the denominators the same by multiplying each fraction by the denominator of the other.
9/2 * 3 = 27/6
20/3 * 2 = 40/6
Then you can subtract the numerators because the denominators are the same:
40/6-27/6= 13/6
Then you can convert to a mixed fraction if need be.
PLEASE HELP!
BRAINLIEST ANSWER!!!!!!!!
Answers
Answer:
1) 1. 3/5
2. 6/10 which simplifies to 3/5
3. 9/15 which simplifies to 3/5
Step-by-step explanation:
let me know if there are specific questions you want me to answer. I did the first one, but I don't have time to answer them all right now. hopefully this gives you a good start
[tex]b:8:10=3:4:5\\ 9:12:15=3:4:5\ \left\{Calculation\right.[/tex]
[tex](3\times4):(4\times4):(5\times4)=12:16:20[/tex]
[tex]so\ the\ ratio\ will\ be\ the\ same[/tex] ← Answer
The circumference of a circle is 69.08 meters. What is the circle's radius? Use 3.14 for .
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Answer:
Circumference = 2πr
69.08 = 2× 3.14 × r
69.08 ÷ 6.28 = r
11m = r
Answer: 22
Step-by-step explanation: Divide the total by pi or 3.14 and the diameter is 22 and the radius is 11
Solve 2x^2 - 4x - 3 = 0
Using the Quadratic formula
(Show step by step how to get the answer because I gotta show my work)
Answers
quad formula is
-b +/- (square root) b^2 - 4ac /2a
-(-4) +/- (sr) -4^2 - (4 x 2 x -3) / (2 x 2)
4 +/- (sr) 16 - -24 / 4
4 +/- (sr) 40 / 4
put it into calc
4 + (sq) 40 / 4 = 2.5811 (4dp)
4 - (sq) 40 / 4 = -0.5811 (4dp)
mbb if this is wrong.. :’)
The sum of two
numbers is 152 and
their difference is 40.
Find the two numbers.
Answers
Answer: The numbers are 96 and 56
Step-by-step explanation:
x+y=152
x-y=40
If you subtract the equations from one another, you will get
x+y=152
-(x-y)=40
So, 2y=112, making y=56
If you plug y=56 into x+y=152, you will get x=96
A.) what are the slope and y-intercept for the linear function represented in the table
B.) write the equation in Y=MX+B form
Answers
(-8- -2)/(2-0) = -6/2 = 3
To find the y intercept, plug one of the points in the y=mx+b form and solve for b:
y=mx+b
4=3(-2)+b
4=-6+b
10=b
B) Using what we solved for, the equation would be y=3x+10
please answer the following and give a good explanation
Answers
Answer:
x = 8
z = 15
y = 118°
Step-by-step explanation:
First, we know that these are similar. That means that if we know which angles correspond to each other, those are equal, and the sides that correspond to each other have a common ratio. I went ahead and rotated PQRS so that it visually aligns with WXYZ -- that image is attached. We can do this because similar shapes must have the same angles, so aligning the angles works here. Using that, we can see that, based on the angles, QR matches up with XY, WZ matches up with PS, and so on.
We can then say that there is a common ratio between the corresponding sides.
WZ/PS = XW/PQ = ZY/RS = 9/6 = 12/x = z/10
9/6 simplifies to 3/2, so we have
3/2 = 12/x
multiply both sides by x to no longer have it as a denominator
3 * x / 2 = 12
multiply both sides by 2 and divide both sides by 3 to isolate x
x = 8
3/2 = z / 10
multiply both sides by 10 to isolate z
z = 15
In the corresponding figures, we can see that y matches up with ∠WXY. Thus, the two angles are equal and y = 118°
Timothy invested a total of $7,500 in two accounts. One account pays 3% interest annually; the other pays 2% interest annually. At the end of the year, Timothy earned a total of $175 in interest. Write and solve a system of equations' to find how much money Timothy invested in each account.
Timothy invested ___in 3% account and ______in the 2% account
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Answer:
Timothy invested $2500 in 3% account and $5000 in the 2% accountStep-by-step explanation:
Let the investments be x and y.
Required equations are:
x + y = 75000.03x + 0.02y = 175Solve the system by elimination, multiply the second equation by 50 and subtract the first one:
50(0.03x) + 50(0.02y) - x - y = 50(175) - 75001.5x - x = 12500.5x = 1250x = 2500Find the value of y:
2500 + y = 7500y = 5000square root of 15, 2 times the square root of 3, 3 times the square root of 3, square root of 17 least to greastes get it right and u win 100 dollars
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Answer: 9
Step-by-step explanation: Im guessing right now
Fidget spinner: $20 Sale: 10% off What is the new cost of the fidget spinner?
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Answer:
$18
Step-by-step explanation:
Given:
Sale for $20
Sale: 10% off
New cost of the fidget spinner
Solve:
$20 × 10% = 2 {Discount Price/off price}
$20 - 2 = $18 {New cost of the fidget spinner}
Thus, the new cost of the fidget spinner
~Lenvy~
Really need help on this
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Answer:
The function is t(n) = 3n - 9
Find are the area of the 9 by 16 rectangle and add it to
the area of the triangle with base = 16 and height = 5.
Answers
Answer:
9×16=144
16×5=. 80
.: 144+80 =224
Step-by-step explanation:
The correct answer is 224
-
(09.01 LC)
For f(x) = x2 and g(x) = (x - 5)2, in which direction and by how many units should f(x) be shifted to obtain g(x)? (5 points)
O Right 5 units
Up 5 units
Left 5 units
Down 5 units
Answers
Answer:
right 5 units
Step-by-step explanation:
given f(x) then f(x ± a) is a horizontal translation of f(x)
• if + a then a shift of a units left
• if - a then a shift of 5 units right
f(x) → g(x) = (x - 5)² with a = - 5
then f(x) is shifted 5 units right to obtain g(x)
Does anyone know the answer?
Answers
Answer:
The answer is A.
Step-by-step explanation:
You have one solution where the lines intersect, which is (-7, 6)
Examine the data below for a stalk of corn. Logarithmic regression Use logarithmic regression to find an equation of the form y = a b ln(x) to model the data. A = b =.
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The value of a and b for the data values of stalk of corn using the logarithmic regression is -76.2038 and 37.6735 respectively.
What is logarithmic regression?Logarithmic regression is a type of regression which is used to model the statement in which the growth or decay initially at rapid rate, and then slow down with respect to time.
The data of the table for the day and height of the stalk of corn is listed below.
Day (x) 9 12 22 40
Height (y) in 5 17 45 60
Mean of x values,
[tex]m_x=\dfrac{9+12+22+40}{4}\\m_x=17.5581[/tex]
Mean of y values,
[tex]m_y=\dfrac{5+17+45+60}{4}\\m_y=31.75[/tex]
For the above table, the value of correlation coefficient is 0.99133. For these values, the logarithmic regression can be given as,
[tex]y = -76.2038+37.6735\ln(x)[/tex]
Compare it with the following logarithmic regression equation, we get
[tex]y = a+b\ln(x)[/tex]
[tex]a=-76.2038\\b=37.6735[/tex]
Hence, the value of a and b for the data values of stalk of corn using the logarithmic regression is -76.2038 and 37.6735 respectively.
Learn more about the logarithmic regression here;
https://brainly.com/question/25226042
Answer: a= -76.204
b= 37.673
51 days
Step-by-step explanation:
Can -2/x be equal to x^-1? Why?
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[tex]\mathbb{FINAL\;ANSWER:}[/tex]
[tex]\huge\boxed{\sf{Nope}}[/tex]
[tex]\mathbb{SOLUTION:}[/tex]
Hi! Hope you are having a nice day!
Recall the Properties of Exponents:
[tex]\rm{a^{-b}=\displaystyle\frac{1}{a^b}[/tex]
Let's use this property to solve:
[tex]\rm{x^{-1}[/tex]
According to the property, we should flop the number over:
[tex]\rm{\displaystyle\frac{1}{x^1}[/tex]
Is that equal to [tex]\displaystyle\frac{-2}{x}[/tex]?
No.
Hope you could comprehend everything.
#CarryOnLearning
Can someone please answer this for me
Answers
Answer:
x=18
Step-by-step explanation:
We'll assume that the shorter sides are AB and CD. Then 7x-6=5x+30. You add 6 to both sides. 7x=5x+36. Isolate x. 2x=36. Divide, and x=18.
s(x) = -2x - 2
t(x) = x² - 2
Find the value of s (t(3)).
Answers
Answer:
-16
Step-by-step explanation:
t(3)= 3²-2
= 7
s(t(3)) = -2×7-2
= -14-2
= -16
The critic rating and audience score for 8 movies are shown in the table.
Critic Rating 72 80 65 23 28 60 41 35
Audience Score 64 92 90 48 55 70 44 80
An owner of a movie theater is investigating whether critic rating can be used to predict the mean audience score of movies. Assuming the conditions for inference have been met, which of the following inference procedures is the most appropriate to estimate the mean change in audience score for each 1 point increase in the critic rating?
a: A one-sample tt-test for means
b: A linear regression tt-interval for slope
c: A two-sample tt-interval for a difference between means
d: A matched-pairs tt-interval for a mean difference
e: A two-sample zz-interval for a difference between proportions
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The length of a rectangle is 5m longer than the width. The perimeter of the rectangle is 82m. Find the length and width of the rectangle.
Answers
Answer:
length: 23 mwidth: 18 mStep-by-step explanation:
The given dimensions are related by the perimeter formula for a rectangle.
Let w represent the width in meters. Then (w+5) represents the length. These values can be put into the perimeter formula, which can be solved to find w.
P = 2(L +W)
82 = 2((w+5) +w) . . . . fill in for L and W
41 = 2w +5 . . . . . . . . divide by 2
36 = 2w . . . . . . . . . subtract 5
18 = w . . . . . . . . . divide by 2. This is the width.
w+5 = 18+5 = 23 . . . . find the length
The length of the rectangle is 23 m; the width is 18 m.
What speed will a fan turn if the drive motor is turning at 1250 RPM, the motor pulley is 4 inches in diameter, and the fan pulley is 8 inches in diameter
Answers
The speed the fan will turn is 625 rpm
Linear speedSince they fan and the pulley ahve the same linear speed v = rω where
r = radius of pulley and ω = angular speed.Then
r₁ω₁ = r₂ω₂ where
r₁ = radius of fan pulley = 8 in/2 = 4 in, ω₁ = angular speed of fan pulley, r₂ = radius of motor pulley = 4 in/2 = 2 in, ω₂ = angular speed of motor pulley = 1250 rpm Angular speed of fan pulleyMaking ω₁ subject of the formula, we have
ω₁ = r₂ω₂/r₁
Substituting the values of the variables into the equation, we have
ω₁ = r₂ω₂/r₁
ω₁ = 2 in × 1250 rpm/4 in
ω₁ = 1250 rpm/2
ω₁ = 625 rpm
So, the speed the fan will turn is 625 rpm
Learn more about angular speed of pulley here:
https://brainly.com/question/2923987
what is the value of a
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Jessica’s bike tire has a radius of 8 inches. Which equation could be used to find the circumference of the tire in inches?
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The equation that could be used to find the circumference of the tire is P = 2πr and the circumference of the tire is 50.24 inche
What is circumference?A circumference is a total distance around a plane shape. It is also called perimeter
The equation for finding the circumference of a circle is given below
Formula:
P = 2πr............... Equation 1Where:
P = Circumference of the circleπ = Pie r = radius of the circleFrom the question,
Given:
r = 8 inchesπ = 3.14Substitute these values into equation 1
P = 2(3.14)(8)P = 50.24 inchesHence, The equation that could be used to find the circumference of the tire is P = 2πr and the circumference of the tire is 50.24 inches.
Learn more about circumference here: https://brainly.com/question/15673093
Given the diagram, which theorem would you use to find AD?
8.4
D
B
8.4
20
A) Perpendicular Bisector Theorem
B) Converse of the Perpendicular Bisector Theorem
Angle Bisector Theorem
D) Converse of the Angle Bisector Theorem
ОА
OB
Ос
OD
Answers
Answer:
B
AD will be 20
Please mark me brainliest