Mathematics College

not sure need help ​

Not Sure Need Help

Answers

Answer 1

Answer:

8.2

Step-by-step explanation:

Answer 2
It is actually 64. Good Luck

Related Questions

Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10.
Rectangle C has length 30 and width 15.
1. Is Rectangle A a scaled copy of Rectangle B? If so, what is the scale factor?

2. Is Rectangle B a scaled copy of Rectangle A? If so, what is the scale factor?

3. Explain how you know that Rectangle C is not a scaled copy of Rectangle B.

4. Is Rectangle A a scaled copy of Rectangle C? If so, what is the scale factor?

Answers

1. no

2. no

3. there's no rational factor

4. no

I'm probably wrong...

There are 16 boys and 12 girls in Mr.willam’s class. What is the ratio of boys to girls

Answers

Answer:

16:12 or 16 to 12

Step-by-step explanation:

Answer:

16:12 or 16 to 12

The ratio of boys to girls is 16 to 12.

Identify all of the root(s) of g(x) = (x2 + 3x - 4)(x2 - 4x + 29).


-1


1


-4


4


2 + 5i


2 - 5i


-2 + 10i


-2 - 10i

Answers

Answer:

The answer is 1, -4, 2+5i, 2-5i

Step-by-step explanation:

Answer:

B,C,E,F

Step-by-step explanation:

Edge 2020

complete the pattern 444 4440 44,400 444,000 ______ _______ what goes on does 2 spots

Answers

Answer:

4440,000 and 44.400,000

Step-by-step explanation:

All you do is add another zero to the end

Simplify 5a-(-9)-7a-12

Answers

Answer:

-2a = 0 + 3

Step-by-step explanation:

hope this helps.

SOMEONE PLEASE HELP ILL GIVE BRAINLIEST

Answers

Answer: Its E,F, and H

Step-by-step explanation: There no way its not E,F, and H . C is a right angle so I believe the questions asking what other ones are right angles and that answer would be E,F and H.

2.
A line goes through the points (0, 10) and (-1, 1).
2a
What is the slope of the line?

Answers

Answer:

9

Step-by-step explanation:

We can find the slope using the slope formula

m = ( y2-y1)/(x2-x1)

    = ( 1 -10)/(-1 -0)

   = -9/-1

   = 9

Answer:

9

Step-by-step explanation:

1 - 10 / -1 +0 = -9 / -1 = 9

A psychologist has designed an index to measure the social perceptiveness of elementary school children. The index is based on ratings of a child's responses to questions about a set of photographs showing different social situations. A random sample of 16 elementary school children was chosen, and their index measurements were recorded. Assume that the index measure in the population is normally distributed. The 95% confidence interval created from this data is (56.29, 65.09). This interval indicates:__________.Choose one or more:a. The average index of elementary school children must be 60.69.b. The standard deviation of the sample is about 10% smaller than the population standard deviation.c. That if we take many samples from this population 95% of them will have a sample mean between 56.29 and 65.09.d. 95% of all elementary school children in this district have indices between 56.29 and 65.09.e. 4.40 is 95% of the true average of the index for all elementary school children.f. We are 95% confident that the average index for all elementary school children is between 56.29 and 65.09.

Answers

Complete Question

A psychologist has designed an index to measure the social perceptiveness of elementary school children. The index is based on ratings of a child's responses to questions about a set of photographs showing different social situations. A random sample of 16 elementary school children was chosen, and their index measurements were recorded. Assume that the index measure in the population is normally distributed. The 95% confidence interval created from this data is (56.29, 65.09). This interval indicates:__________.Choose one or more:

a. The average index of elementary school children must be 60.69.

b. The standard deviation of the sample is about 10% smaller than the population standard deviation.

c. That if we take many samples from this population 95% of them will have a sample mean between 56.29 and 65.09.

d. 95% of all elementary school children in this district have indices between 56.29 and 65.09.

e. 4.40 is 95% of the true average of the index for all elementary school children.

f. We are 95% confident that the average index for all elementary school children is between 56.29 and 65.09.

Answer:

The correct option is  a and  f

Step-by-step explanation:

From the question we are told that

    The sample size is  n =  16

     The 95% confidence interval is  (56.29, 65.09)

Generally the sample mean(average index of elementary school children) is mathematically represented as

     [tex]\= x  =  \frac{65.09 + 56.29}{2}[/tex]

=>  [tex]\= x  =  60.69 [/tex]

 

i need this ASAP The line y = -1/5x + 24 and y = 5x +9 are what to each other?

Answers

Answer:

These lines are perpendicular to each other

Step-by-step explanation:

SInce ne slope is the opposite of the reciprocal of the other

-1/5  opposite of reciprocal of 5

These are perpendicular lines

Find a and b: (10-4i)-(a+bi)=(6-6i)

Answers

Answer:

look at attached image, hope this helps! :)

George desposit is as follows: Checks: $63.21, $37.79, and $15.50; cash: 24 one-dollar bills, 11 ten-dollar bills, 20 quarters, 22 dimes, and 40 pennies; less $20.00 as chas recevied. What is his total deposit?

Answers

Answer:

$258.10

Step-by-step explanation:

Solve for y. 84,000x + 36,000y = 1,962,800

Answers

Answer:

Step-by-step explanation:

y=4907 7x
____ _ __
90 30

y equals 4907 over 90 minus 7x over 30

The rectangle below is enlarged using a scale factor of 1.5. What will be the new length and width of the rectangle?

Answers

Answer: length = 4.5 m, width = 3 m

Step-by-step explanation:

When a shape is enlarged using a scale factor, you simply multiply each of the sides by the scale factor.

length = 3 * 1.5 = 4.5 m

width = 2 * 1.5 = 3 m

What is the measurement of MJL ??

Answers

The measure for MJL is

72 degrees

Explanation
Since the angle measures up to 90 degrees and LJK measures up to 18 degrees. You just simply subtract 90-18 and you get 72 degrees

Please help what is -3/20 x -6

Answers

Answer:

0.9 im pretty sure

Step-by-step explanation:

A person going to a party was asked to bring 4 different bags of chips. Going to the store, she finds 13 varieties.

How many different selections can she make?
(this is a probability question)

Answers

Answer:

Step-by-step explanation:

13!/4(13-4)!

13!/4(9)!

Continue simplifying.

The formula for combinations n!/r!(n-r)! pay attention to class next time

"715" are the different selections she can make.

Given:

Number of different begs,

4

Total number of varieties,

13

So,

Total number of different selection = ¹³C₄

= [tex]\frac{13!}{4!\times (13-4)!}[/tex]

= [tex]\frac{13!}{(4!\times 9!)}[/tex]

= [tex]\frac{13\times 12\times 11\times 10}{4\times 3\times 2}[/tex]

= [tex]\frac{17160}{24}[/tex]

= [tex]715[/tex]

Thus the above answer is correct.

Learn more:

https://brainly.com/question/21125879

Which equation represents the relation that is shown in the graph?

Cost of Buying Comic Books
On a coordinate plane, a graph titled Cost of Buying Comic Books has number of issues on the x-axis and total cost on the y-axis. A line goes through points (0, 0), (1, 3.5), (2, 7).

y = x + 2/7
y = x + 7/2
y = 2/7 x
y = 7/2x

Answers

Answer:

It is D

Step-by-step explanation:

Im like 95 percent sure

Answer:

D

Step-by-step explanation:

Took the test

n Over 33 = 4 Over 11
a. n = 90 and three-fourths
c. n = 1 and one-third
b. n = 16
d. n = 12

Answers

Answer:

d. n = 12

Step-by-step explanation:

n/33 = 4/11

cross-multiply:

11n = 132

divide both sides by 11:

n = 12

Find the mean (do not round )38,18.05,25,26,46

Answers

Answer:30.61  I believe I’m right

Step-by-step explanation:

The answer is 26.61. You add the numbers then divide by however many there are. 133.05 divided by 5. I hope helps. I believe I’m correct.

Mia runs a 5-kilometer race (3.1 miles). If each mile, on average, takes her 8.7 minutes, what is her total time for the race? Enter the correct answer in the box.

Answers

The answer is 1.74 kpm because you just divide distance by time

If the odds for a certain event are 5 to 12, what is the probability of the event occuring? Write your answer
as a simplified fraction.

Answers

Answer:

5/12

Step-by-step explanation:

Isn't this just a ratio?

how to simplify this
[tex] {4x}^{ 3} \times {2x}^{3} [/tex]
​

Answers

8X^6

4*2=8

X^3*X^3 = added the cubes

X^6 is the result

8X^6 is the answer

PLEASE PLEASE HELP!!!


Answers

Answer:

Step-by-step explanation:

[tex]x^{2} \sqrt{x} \sqrt[n]{x} \frac{x}{y} x_{123} \beta \beta \alpha \neq \geq \\ \left \{ {{y=2} \atop {x=2}} \right.[/tex]

I need to write a proportion to the following problem:

3 folders cost $2.91. What written proportion would help determine the cost of 2 folders?​

Answers

Answer:

The cost of two folder is $ 1.94

Solution:

Given that 3 folders cost $ 2.91

We have to determine the cost of 2 folder

From given,

Cost of 3 folder = $ 2.91

 

To find the cost of 1 folder, divide 2.91 by 3

Thus cost of 1 folder is $ 0.97

We are asked to find cost of two folders.

Therefore, multiply cost of 1 folder by 2

Thus cost of two folder is $ 1.94

37% of $150 Single can u ols helo me ita gor a test

Answers

55.5 That is the answer

A researcher wants to know how undergraduate college students at her university feel about a list of 1196 undergraduate college students at her university, selects 500 of them at random, and emails a questionnaire to them 107 questionnaires are returned. Of these, 71% stated that they believe that the federal student loan program needs to be completely overhauled. Classify the following groups as the population or the sample for this particular study. If a group does not belong in either category, leave it unplaced.
Population
all undergraduate college students all researcher's university
the 1196 undergraduate college students whose names were obtained
the proportion of all undergraduate college students at the researcher's university who believe that the federal student loan program needs to be completely overhauled
Sample
the 500 undergraduate college students who were randomly choosen
the 71% who stated that the federal student loan program needs to be completely overhauled

Answers

Complete Question

The complete question is shown on the first uploaded image

Answer:

Population

All undergraduate college students at the  researcher's university ,

Sample

The 107 undergraduate college students who returned the questionnaire

Step-by-step explanation:

From the question we are told that

   The list of undergraduate college students obtained from her university is  n= 1196

     The number of student that are randomly selected is  n =  500

      The number of e-mail that was returned is  k = 107

     The proportion that believes that the federal student loan program needs to be completely overhauled is  [tex]\^{p} = 0.71[/tex]

Generally the population for this particular study is

All undergraduate college students at the  researcher's university ,

this is because they are the total pool of data from which the statistical sample are randomly selected from

Generally the sample for this particular study is

The 107 undergraduate college students who returned the questionnaire

 this is because this data provides us with an insight on the perspective of all undergraduate college students at the researcher's university about federal financial  aid

PLEASE HELP!!! ILL GIVE BRAINLIEST

Answers

Answer:

118 degrees

Step-by-step explanation:

Answer:

118°

Step-by-step explanation:

62 and angle B are supplementary angles, so they add up to 180. 180-62 is 118, so angle B is 118.

Aquarium I contains 4.6 gallons of water. Louise will begin filling Aquarium I at a rate of
1.2 gallons per minute,
Aquarium II contains 54.6 gallons of water. Isaac will begin draining Aquarium II at a rate of
0.8 gallon per minute.
After how many minutes will both aquariums contain the same amount of water?

Answers

Answer:

The Answer is B

Step-by-step explanation:

7-3n<=n+3

How do I solve this inequality

Answers

Answer:

1<=n

Step-by-step explanation:

7-3n<=n+3

7-3<=3n+n

4<=4n

1<=n

IM GIVING AWAY 20 POINTS!!!
In the first paragraph, why is the phrase "little mountain escape" in quotation
marks?
O to stress the fact that the Biltmore was to provide a vacation spot for friends
to indicate that the Biltmore was built in the midst of the mountains
to highlight the goal the Vanderbilt's had in building the Biltmore
to provide a contrast to the actual enormity of the Biltmore

Answers

Answer:

D. To provide a contrast to the actual enormity of the Biltmore

Step-by-step explanation:

Usually, when something is in "quotes", it's used to indicate sarcasm, emphasis, or a direct quote. This indicated emphasis.

Answer A

I don’t know what this has to do with math, but answer A is the one that makes the most sense.
Other Questions
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