MATHEMATICS COLLEGE

Please help will definitely say thanks

Answers

Answer 1

Answer:

Answer:

$\mathrm{Image \: below.}$

Explanation:

Ruby talks about a 3D shape, so sphere.

Shriya talks about the points that are equal in distance from the opposite points, the diameter, she is right.

Abhishek's definition is not shown completely in the photo, so by process of elimination, he is incorrect.

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Wisconsin Public Radio wants to duplicate a survey conducted in 2011 that found that 68% of adults living in Wisconsin felt that the country was going in the wrong direction. How many people would need to be surveyed for a 90% confidence interval to ensure the margin of error would be less than 3%? Be sure to show all your work and round appropriately

Solve for the indicated variable in each math formula. 1.C=2(3.14)r for r 2.A=1/2bh for b 3.y=Mx+b for x 4.A=1/2(a+b)h for h 5.V(3.14)r(r)h for h

Answers

Answer:

See below

Step-by-step explanation:

1. C = 2(3.14) for r

r = C / 3.28

2. A = 1/2 b h for b

b = A2 / h

3. y = Mx + b for x

y - b = Mx

x = (y - b) / M

4. A = 1/2 (a + b) h for h

A = (1/2a + 1/2b)h

A = 1/2ah + 1/2bh

A = (a + b) h / 2

h = 2A / (a + b)

5. V = (3.14) r² h for h

h = V / (3.14 r²)

Carpetland salespersons average $8000 per week in sales. Steve Contois, the firm's vice president, proposes a compensation plan with new selling incentives. Steve hopes that the results of a trial selling period will enable him to conclude that the compensation plan increases the average sales per salesperson. a. Develop the appropriate null and alternative hypotheses.

Answers

Answer:

Null hypothesis: The average sales per salesperson of Carpetland is $8000 per week

Alternate hypothesis: The average sali per salesperson of Carpetland is greater than $8000 per week

Step-by-step explanation:

The null hypothesis is a statement deduced from a population parameter which is subject to testing

The alternate hypothesis is a statement that negates the alternate hypothesis which is accepted if the null hypothesis is tested to be false

19) Solve the system,
*****
x + 3y - 5
-2x + 2y = 14

Answers

Answer:

y = 3

x = -4

Step-by-step explanation:

Hopefully the first equation is x + 3y = 5

x = 5 - 3y

Plug in:

-2(5 - 3y) + 2y = 14

-10 + 6y + 2y = 14

8y = 24

y = 3

x = -4

What is 5 88/100 - 1 94/100

Answers

Answer:

197/ 50 or in decimal 3.94

Answer

197/ 50 or in decimal 3.94

Step-by-step explanation:

HELP PLEASE An officer building 55 ft tall cast a shadow 30 ft long. How tall is a person standing nearby who cast a shadow 3 ft long

Answers

Answer:

About 5.52 feet tall.

Step-by-step explanation:

Divide 55/30. You will get 1.84. Then multiply 3 by 1.84 to get the answer :)

What is 231 scaled down by a factor of 1/10

Answers

For this case we have the following number:
231
We have the following scale factor:
1/10
Applying the scale factor we have:
(number) * (scale factor)
(231) * (1/10) = 23.1
Answer:
The new number is given by:
23.1

Other Questions

I need an explanation so I can understand this because am very confused

How much changewould you get from £1if you spent 77p?

Part A How much voltage must be used to accelerate a proton (radius 1.2 ×10−15m) so that it has sufficient energy to just penetrate a silicon nucleus? A silicon nucleus has a charge of +14e, and its radius is about 3.6 ×10−15m. Assume the potential is that for point charges.

HELP URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!