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3 years ago

Which of the following are binomials? Check all that apply.

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

7 0

Binomial is the sum of two monomials.

$\text{binominals:}\\\\C.\ x^2+18\\D.\ x+2$

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Solve. x + 9 = –15 x = [1] help please

max2010maxim [7]

Answer:

1/2

Step-by-step explanation:

x + 9 = -15x = [1]

x - x + 9 = -15x -x = 1

9 - 1 = -16x

8 = 16x

8/16 = 16/16x

1/2 = x

Hope this helps

7 0

3 years ago

Read 2 more answers

Daisy's teacher asked her class to draw a triangle whose sides measured 2 inches, 3 inches, and 4 inches. She correctly drew the

harina [27]

Answer:

I dont think so since a triangle adds to 180 degrees

Step-by-step explanation:

but im stuck between c and d

sorry I couldnt complete;ly answer it for u!

have a nice day!

4 0

2 years ago

Which sets of values belong to the domain of range of a relation?

aliina [53]

Domain is all X values, and range is the Y values.

5 0

2 years ago

Read 2 more answers

Find the area of each figure, round to the nearest tenth if necessary.USE 3.14 for pi

Nina [5.8K]

Answer:

11 is 405, 12 is 107.5, 13 im not sure of

Step-by-step explanation:

First on 11 you can just do 21*21 (the big square) and subtract that by 36 (which is 6*6, the small square), you'll get 107.5.

Then on 12, it is made up of a large rectangle, a small triangle, and a flatter triangle. The top triangle's formula is 1/2(7*3) which = 10.5. The big rectangle is 13*7 = 91. The last triangle is 1/2(4*3) which = 6. It is 3 because 13-10. Add all those up and you should get 107.5.

And I just want to know on number 13 if that 11 is the radius or diameter. I can't seem to tell.

7 0

3 years ago

Read 2 more answers

A simple random sample of size nequals40 is drawn from a population. The sample mean is found to be 103.9, and the sample stand

yan [13]

Answer:

There is enough evidence to support the claim that the population mean is greater than 100

Step-by-step explanation:

Step 1: We state the hypothesis and identify the claim

$H_0:\mu=100$ and $H_1:\mu \:>\:100$ (claim)

Step 2: Calculate the test value.

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

$\implies t=\frac{103.9-100}{\frac{21.9}{\sqrt{40} } }=1.1263$

Step 3: Find the P-value. The p-value obtained from a calculator is using d.f=39 and test-value 1.126 is 0.134

Step 4: We fail to reject the null hypothesis since P-value is greater that the alpha level. (0.134>0.05).

Step 5: There is enough evidence to support the claim that the population mean is greater than 100.

Alternatively: We could also calculate the critical value to obtain +1.685 for $\alpha=0.05$ and d.f=39 and compare to the test-value:

The critical value (1.685>1.126) falls in the non-rejection region. See attachment.

NB: The t- distribution must be used because the population standard deviation is not known.

5 0

3 years ago