Answers
Answer:
1. a^2 + b^2= c^2
2. 15 9^2+12^2 = c^2
3. 4 3^2 +b^2=5^2
4. 24km 6^2+8^2 = c^2 c = 10 6+8+10 = 24
5. √(x2-x1)^2 + (y2-y1)^2
6.√34 (1,0) (6,3) √(6-1)^2+(0-3)^2
x1, y1 x2, y2
Related Questions
Write an equation that relates the angles in a triangle.
The measure of angle A is 45 degrees. The measure of angle B is b degrees. The measure of angle C is 3b degrees.
Answers
Step-by-step explanation:
please mark me as brainlist please
Please list all of the fractions that are greater than 7/12
Answers
Answer:
5/9, 9/12, 6/7, 6/9 are the ones I believe so far
Step-by-step explanation:
The average number of words in a romance novel is 64,436 and the standard deviation is 17,071. Assume the distribution is normal. Let X be the number of words in a randomly selected romance novel. Round all answers to 4 decimal places where possible.
a. What is the distribution of X? X ~ N(
64436
Correct,
17071
Correct)
b. Find the proportion of all novels that are between 72,972 and 90,043 words.
c. The 75th percentile for novels is
words. (Round to the nearest word)
d. The middle 60% of romance novels have from
words to
words. (Round to the nearest word)
Answers
b. You're looking for the probability
Pr [72,972 ≤ X ≤ 90,043]
Transform X to Z ∼ Normal(0, 1) using the rule
X = µ + σ Z
with µ = 64,436 and σ = 17,071. Then the probability is
Pr [(72,972 - µ)/σ ≤ (X - µ)/σ ≤ (90,043 - µ)/σ]
≈ Pr [0.5000 ≤ Z ≤ 1.5000]
You probably have a z-score table available, so you can look up the probabilities to be about
Pr [Z ≤ 0.5000] ≈ 0.6915
Pr [Z ≤ 1.5000] ≈ 0.9332
and then
Pr [0.5000 ≤ Z ≤ 1.5000] ≈ 0.9332 - 0.6915 = 0.2417
c. The 75th percentile word count that separates the lower 75% of the distribution from the upper 25%. In other words, its the count x such that
Pr [X ≤ x] = 0.75
Transforming to Z and looking up the z-score for 0.75, we have
Pr [(X - µ)/σ ≤ (x - µ)/σ] ≈ Pr [Z ≤ 0.6745]
so that
(x - µ)/σ ≈ 0.6745
x ≈ µ + 0.6745σ
x ≈ 75,950
d. Because the normal distribution is symmetric, the middle 60% of novels have word counts between µ - k and µ + k, where k is a constant such that
Pr [µ - k ≤ X ≤ µ + k] = 0.6
Also due to symmetry, we have
Pr [µ - k ≤ X ≤ µ + k] = 2 Pr [µ ≤ X ≤ µ + k]
⇒ Pr [µ ≤ X ≤ µ + k] = 0.3
Transform X to Z :
Pr [(µ - µ)/σ ≤ (X - µ)/σ ≤ (µ + k - µ)/σ] = 0.3
⇒ Pr [0 ≤ Z ≤ k/σ] = 0.3
⇒ Pr [Z ≤ k/σ] - Pr [Z ≤ 0] = 0.3
⇒ Pr [Z ≤ k/σ] - 0.5 = 0.3
⇒ Pr [Z ≤ k/σ] = 0.8
Consult a z-score table:
Pr [Z ≤ k/σ] ≈ Pr [Z ≤ 0.8416]
⇒ k/σ ≈ 0.8416
⇒ k ≈ 14,367
Then the middle 60% of novels have between µ - k = 50,069 and µ + k = 78,803 words.
Determine if true:
9x0^1x9=9
Answers
Answer:
False
Step-by-step explanation:
9x0=0
0^1=0
0x9=0
0=9
The numbers don't match.
Hence, the equation is false.
Answer:
False
Step-by-step explanation:
9*0=0
0^1 =0
0*9 = 0
0≠9
Question 1
Which best describes the error in solving the equation?
Both sides of the equation should have been multiplied by 28.
Both sides of the equation should have been multiplied by 28.
Both sides of the equation should have been divided by 28.
Both sides of the equation should have been divided by 28.
Both sides of the equation should have been multiplied by 4.
Both sides of the equation should have been multiplied by 4.
From both sides of the equation, 4 should have been subtracted.
From both sides of the equation, 4 should have been , subtracted.
Question 2
Find the correct solution.
The correct solution is x=
.
Answers
Answer:
x=112
Step-by-step explanation:
What is the circumference of a chips ahoy cookie?
Answers
A school hires an entertainment company to host a party. The company charges
a setup fee of $75, plus $500 per hour. The same company pays 7 employees $20
per hour. Write a function that models the amount of money the company will
receive for hosting the party and another function that shows how much it will
cost the company to host the party. Combine the two functions to show the
amount of revenue the company will make for hosting the party. How much
money will the company make if the party lasts 5 hours?
Answers
Answer:
Money received = $(75 + 500.t)
In this problem, p is in dollars and x is the number of units.
Find the producer's surplus at market equilibrium for a product if its demand function is p = 121 − [tex]x^{2}[/tex] and its supply function is p = [tex]x^{2}[/tex] + 6x + 65. (Round your answer to the nearest cent.)
Answers
The market equilibrium is the point where the demand and supply functions are equal
The producer's surplus at market equilibrium for a product is #105
How to determine the producer's surplusThe functions are given as:
[tex]p = 121 - x^2[/tex]
[tex]p = x^2 + 6x + 65[/tex]
Equate both functions
[tex]x^2 + 6x + 65 = 121 - x^2[/tex]
Collect like terms
[tex]x^2 + x^2 + 6x + 65 - 121 = 0[/tex]
Evaluate the like terms
[tex]2x^2 + 6x -56 = 0[/tex]
Divide through by 2
[tex]x^2 + 3x -28 = 0[/tex]
Expand
[tex]x^2 + 7x - 4x - 28 = 0[/tex]
Factorize
[tex]x(x + 7) - 4(x +7)= 0[/tex]
Factor out x + 7
[tex](x - 4)(x +7)= 0[/tex]
Solve for x
x = 4 or x = -7
The number of units cannot be negative,
So, we have:
x = 4
Substitute 4 for x in [tex]p = 121 - x^2[/tex]
[tex]p = 121 - 4^2[/tex]
p = 105
Hence, the producer's surplus at market equilibrium for a product is #105
Read more about equilibrium at:
https://brainly.com/question/110832
ASpoon is sold at a loss of 47%. If it was sold at 200
Calculate the Cost Price
Answers
Answer:
377.36(2decimal places)
Step-by-step explanation:
Solution
First write down all known info about problem
Loss(L) percent:47%
Selling price(SP):200
Cost Price is unknown but CP percent equals 100%(basic percent b'cos it represents the basic cost of the item)
When at a loss, the CP is higher than the SP so subtract the L% from the CP% to get the SP percent...
∴SP% equals CP%-L%
100%-47%:53% ∴SP%:53%
We can simply cross multiply now by saying,
If 53% equals 200
∴100% equals a variable(x)
Cross multiplying,we get:
53x equals (200×100) so dividing both sides by 53,
x equals 377.36(2 decimal places)
Therefore, the CP is 377.36
PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!!
Answers
[tex]Answer: y =\dfrac{1}{2}(x +2)^{2}+[/tex]Answer:
Step-by-step explanation:
Vertex form of quadratic function: y =a(x -h)² + k
Where (h,k) is the vertex
vertex (-2 , 6)
y = a(x -[-2])² + 6
y = a(x + 2)² + 6
This is passing through (-4,8)
8 = a(-4 + 2)² + 6
8 = a(-2)²+ 6
8 = 4a +6
8 - 6 = 4a
4a = 2
a = 2/4
a = 1/2
[tex]Answer: y =\dfrac{1}{2}(x +2)^{2}+6[/tex]
What is the slope of the line that contains these points?
Answers
Slope formula:
m=y2-y1/x2-X1
I will use (-1,10) and (1,2)
2-10/1-(-1)
Which is
-8/2
Divide:
-4
This the slope is -4
Hope this helps! :))
Please help!! the problem is attached for the standard deviation
Answers
Answer:
9.24
Step-by-step explanation:
The system of equations above is graphed below. Find the solution to the system.
Group of answer choices
(0,-6)
(-1,-5)
(1,-5)
(-5,1)
Answers
Solution:
The solution to the given system of equation is the intersection point created with the 2 lines. The solution must satisfy all equations. We can see the intersection. To identify the solution, plot the solution on the graph.
=> Solution of two lines: (x = 1, y = -5)=> Solution of two lines in (x,y) form: (1, -5)Option C is correct.
~Refer to image for plotted solution~
A state university locks in costs for a student once a student starts attending the university. The total cost is $22,500. A student has the following help in covering the costs of school.
An academic scholarship of $10,000.
Other scholarships and grants of $4,400.
Parents pay $1,800.
What is the amount that the student will need to save every month in order to pay off the remaining costs in 10 months?
a. $525
b.$630
c.$1,200
d. $1,440
Answers
Answer:B $630 Per Month So B
Step-by-step explanation: $22,500-$10,000=$12,500-$4,400=$8,100-$1,800=$6,300/10Months=$630
Answer:
$690
Step-by-step explanation:
If the student will need to save every month in order to pay off the remaining costs in 10 months, the amount she will need to save per month is $690
Amount and interest
Given the following information from the question
The total cost of fee = $23,500
Amount got as help;
An academic scholarship of $8,200.
Other scholarships and grants of $7.400.
Grandparents pay $1,000
Amount she had = 8200 + 7400 + 1000
Amount she had = $16600
Amount remaining = 23500 - 16600
Amount remaining = $6900
If the student will need to save every month in order to pay off the remaining costs in 10 months, the amount she will need to save per month is $690
https://brainly.com/question/22112075
38. Find the value of x in isosceles trapezoid ABCD.
Given: AC = 3x - 16 and BD = 10x-86
Answers
Answer:
10
Step-by-step explanation:
Diagonals of a isosceles trapezoid are congruent
3x - 16 = 10x - 86 Subtract 3x from both sides and add 86 to both sides
70 = 7x Divide
x = 10
A college basketball stadium has 4 sections of seats. Each section has 24 rows, with 15 seats in each row. During a basketball game, one of the sections was entirely filled with fans. How many fans were sitting in this section?
Answers
Answer:
360 fans were sitting in that section.
Step-by-step explanation:
multiply 24 by 15
Tim bought a certain number of bags of chips that each cost $1.05. Write an expression to show the total cost.
Answers
x is the number of bags of chips
1.05x means "1.05 times x". You could write 1.05*x or omit the multiplication symbol all together.
For example, if he bought x = 100 bags then he would spend 1.05*x = 1.05*100 = 105 dollars.
Please help solve the graph
Answers
Answer:
Put a point on (4, -4)
Count 1 down from the purple point, then go four points to the right.
Step-by-step explanation:
y=[tex]-\frac{1}{4}[/tex]x-3
the -1/4 is what tells you how much to move the point from the given one. In this case, it is one down (-1), and four to the right (4).
permutation:
A college has 7 good badminton players.In how many ways can a team of 5 players be selected??
Answers
Formula for permutation is:
[tex] \boxed{ \tt^{n} C_{r} = \frac{n!}{r!(n - r)!} }[/tex]
Calculation,Plug in the values:
Required number of ways = ²C7
n = 7r = 5[tex] \sf \frac{7!}{5!(7 - 5)!} [/tex]
[tex] \sf \frac{7 \times 6 \times \cancel{5!}}{ \cancel{5! }\times 2!} [/tex]
[tex] \sf \frac{7 \times 6 }{ 2!} [/tex]
[tex] \sf \frac{42 }{ 2!} [/tex]
[tex] \sf \frac{42 }{ 2} = 21[/tex]
Thus, The players can be selected in 21 different ways!!~
Here one player cannot be repeated so repeating is not allowed.
Hence we use combination heren=7r=5Total ways
[tex]\\ \rm\hookrightarrow ^nC_r=\dfrac{n!}{r!(n-r)!}[/tex]
Put values[tex]\\ \rm\hookrightarrow ^7C_5[/tex]
[tex]\\ \rm\hookrightarrow \dfrac{7!}{5!(7-5)!}[/tex]
[tex]\\ \rm\hookrightarrow \dfrac{7!}{5!2!}[/tex]
[tex]\\ \rm\hookrightarrow \dfrac{7\times 6\times 5!}{5!(2)}[/tex]
[tex]\\ \rm\hookrightarrow \dfrac{7(6)}{2}[/tex]
[tex]\\ \rm\hookrightarrow \dfrac{42}{2}[/tex]
[tex]\\ \rm\hookrightarrow 21ways[/tex]
the average cost of 3 books 3:2:5 is $50. How much does each book cost?
Answers
Step-by-step explanation:
We have to find what one share is
we have 3 shares + 2 shares + 5 shares
so he have a total of 10 shares
next, we divide 50 by total shares to get what one share is
50 ÷ 10 = 5
5 is one share
fins what each is
for 3
3 shares so 3 fives
3 × 5 = 15
for 2
2 shares so 2 fives
2 × 5 = 10
and for 5
can you work it out and leave in the comments i will say if it is correct
Jeremy received a basket containing 8 red and 4 green apples.
When he randomly selects and eats two apples from the basket, these are
events.
The probability that both of the apples Jeremy eats are green is
.
Answers
Answer:
It is more probable that he pick two red apples than green. Because their are more red apples thank green so the chances of him picking green apples are very slim.
Have a nice day/night!
This is an example of probability without replacement and can simply be done using the formula.
The probability that both apples he ate will be green is 1/12
Probability without replacementThis is done when we pick a value from a data set and does not replace it and hence affects the value of the original data set.
Data;
Red = 8Green = 4Jeremy ate two apples from the basket and the probability this is green would be
[tex]8 + 4 = 12\\[/tex]
The number of green apples are = 4
[tex]\frac{4}{12} * \frac{3}{12} = \frac{12}{144} = \frac{1}{12}[/tex]
The probability that both apples he ate will be green is 1/12
Learn more on probability without replacement here;
https://brainly.com/question/11405286
#SPJ2
i need the steps to the perimeter and area the radius is 5 ft
Answers
please help me with this escape room !
Answers
Answer:
16. L
17. I
18. H
Step-by-step explanation:
Answer:
LIH
16. L
17. I
18. H
Step-by-step explanation:
[tex]16. \sqrt{45a^{2}b } =\sqrt{(9)(5)a^{2} b} =3a\sqrt{5b}[/tex]
[tex]17. \sqrt{54a^{2}b^{3} } =\sqrt{(9)(6)a^{2}b^{2}b } =3ab\sqrt{6b}[/tex]
[tex]18. \sqrt{45ab^{4} } =\sqrt{(9)(5)ab^{2}b^{2} } =3b^{2} \sqrt{5a}[/tex]
Hope this helps
Find the number of subsets of the set {1, 2, 3, ..., 9}
Answers
Answer:
512
Step-by-step explanation:
the number of subsets of the set {1, 2, 3, ..., 9} is : 2^9 = 512
A scientist mixes water (containing no salt) with a solution that contains 20% salt. She wants to obtain 140 ounces of a mixture that is 5% salt. How many ounces of water and how many ounces of the 20% salt solution should she use?
Answers
Ounces of 30% salt solution required = 140 - x
(Percentage of salt solution)(ounces of 30% solution required) = (5% salt solution needed)(extra salt solution needed)
(20/100)(140-x) = (5/100)*140
(1/5)(140-x) = (1/20)*140
28-1/5x = 7
Multiply both sides of the equation by 5 to isolate x:
5*(28-1/5x = 7)*5
140-x = 35
-x = 35 - 140
-x = -105
x = 105
Ounces of salt solution = 140 - 105 = 35
Therefore, 105 ounces of water is required and 35 ounces of salt solution is required
Find the value of K when K = 5n^2 + w. when n = 4 and w = -6.
Answers
Answer:
[tex]\bold{K = 5n {}^{2} + w} [/tex]
Given ,
value of n = 4
value of w = - 6
Then ,
[tex]\bold{K = 5(4) {}^{2} + ( - 6)} \\\bold{ K = 5(16) - 6} \\\bold{ K = 80 - 6} \\ \fbox\pink{K = 74}[/tex]
hope helpful~
Answer:
Value of k is 74Step-by-step explanation:
Here we have been provided with the values of n and w that is 4 and -6 respectively.
Equation that we have,
k = 5n² + wSubstituting the values of n and w in the equation,
[tex] \implies \: \sf{k \: = \: 5(4) {}^{2} \: + \: ( - 6)}[/tex]
[tex]\implies \: \sf{k \: = \: 5(4 \times 4) \: + \: ( - 6)}[/tex]
[tex] \implies \: \sf{k \: = \: 5 \: (16) \: + \: ( - 6)}[/tex]
Multiplying 16 by 5,
[tex]\implies \: \sf{k \: = \: 5 \: \times 16 \: + \: ( - 6)}[/tex]
[tex]\implies \: \sf{k \: = \: 80 \: + \: ( - 6)}[/tex]
[tex]\implies \: \sf{k \: = \: 80 \: - \:6)}[/tex]
Subtracting 6 from 80,
[tex]\implies \: \red{\bf{k \: = \: 74}}[/tex]
Therefore, value of k is 74..!!
Holly attended a conference at 11:30 A.M. The conference ended at 1:05 P.M. How long does the conference last
Answers
a class has 28 students 13 boys and 15 girls what is rstio girls to boys
Answers
Answer:
15 : 13
Step-by-step explanation:
Girls : Boys
15 : 13
24
,
Factor:
x²-9
A
(x + 3XX-3)
B
(x+3)2
с
(x-3)
(x+3)(x+3)
Answers
Answer:
(x-3)(x+3)
Step-by-step explanation:
We are given the expression [tex]\displaystyle \large{x^2-9}[/tex]:—
To factor this expression, we have a formula for it which is difference of two squares:—
[tex]\displaystyle \large{a^2-b^2=(a+b)(a-b)}[/tex]
You can also swap from [tex]\displaystyle \large{(a+b)(a-b)}[/tex] to [tex]\displaystyle \large{(a-b)(a+b)}[/tex] via multiplication property.
From the expression, factor using the formula above:—
[tex]\displaystyle \large{x^2-9=(x^2)-(3)^2}\\\displaystyle \large{x^2-9=(x-3)(x+3)}[/tex]
Therefore, the factored expression is:—
[tex]\displaystyle \large{\boxed{(x-3)(x+3)}}[/tex]
__________________________________________________________
If you have any questions regarding the problem or need clarification of my answer/explanation, do not hesitate to ask in comment!
Counting Generation as the (first-counted) generation, how many generations occur until the pattern of cells
stabilizes? In other words, how many total iterations occur until the pattern isn't different between generations? You
may use any resources or additional graph paper to determine this number. Type the number of your answer in the
space provided. Example: (Generation 0 + Generation 1 + Generation 2 + Generation 3 + Generation 4) = 5 generations
Answers
Answer: ↓↓↓
Step-by-step explanation: Generation time (G) is defined as the time (t) per generation (n = number of generations). Hence, G=t/n is the equation from which calculations of generation time (below) derive.