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4 years ago

What’s the answer for this problem I’m very confused and stressed out with this problem

Mathematics

1 answer:

mariarad [96]4 years ago

7 0

Would it help if you wrote it as

$\dfrac{x}{-11} = \dfrac{-3}{1}$ ?

Then you can cross multiply if you know how to do that.

1*x = (-11)(-3)

x = 33 but what happened to the 2 minus signs?

Remember that a ( - ) times a ( - ) = a plus. The two minus signs become a plus.

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A company advertises that its cans of caviar each contain 100 g of their product. A consumer advocacy group doubts this claim, a

Blizzard [7]

Answer:

The value of the test statistic is -3.14.

Step-by-step explanation:

Test statistic:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected value, $\sigma$ is the standard deviation and n is the size of the sample.

A company advertises that its cans of caviar each contain 100 g of their product.

This means that $\mu = 100$

They calculate a sample mean weight of 99 g and a sample standard deviation of 0.9 g. Sample of 8 cans.

This means that $X = 99, \sigma = 0.9, n = 8$

So the test statistic will be given by:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{99 - 100}{\frac{0.9}{\sqrt{8}}}$

$t = -3.14$

The value of the test statistic is -3.14.

8 0

3 years ago

An artist is painting the outside of the box shown below. The top and bottom will NOT be painted. What is the total surface area

Montano1993 [528]

Answer:

15 square feet

Step-by-step explanation:

Multiply 1.5 by 3 which equals 4.5

Multiply 1.5 by 2 which equals 3

Add the above answers (4.5 plus 3)

Then multiply by 2 (7.5 times 2)

It equals 15

I hope this helps and that this is the right problem. There is no picture shown but I just did this problem for someone else so I thought I would take a shot at it :)

3 0

3 years ago

Can someone help me with this question????PLEASE

kiruha [24]

Divide the number of quarts of beef soup by the number of cups of vegetables.
1000 / 510

you should get 1.96
If your teacher wants you to round up you should try 2.

3 0

3 years ago

Read 2 more answers

Help........... with this look

julsineya [31]

Hmmmmmm ok i know how to do this

3 0

3 years ago

What is the GCF of 8x^3y^2+20x^2y^4?

DochEvi [55]

Answer:

B) 4x^2y^2

Step-by-step explanation:

8x^3y^2+20x^2y^4

4(2x^3y^2+5x^2y^4)

4x^2(2xy^2+5y^4)

4x^2y^2(2x+5y^2)

So the answer is B

5 0

3 years ago