3 years ago

Plez answer this i will mark u

Mathematics

1 answer:

amid [387]3 years ago

4 0

<h3>The answer of your question. I also have given some reasons of it. Hope it will help you. </h3>

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Calculate the sum.<br> 10+ (-42)<br> O A. 52<br> O B. -32<br> O C. 32<br> D. -52

kotykmax [81]

Answer:

Step-by-step explanation:

10 + (-42)

10 - 42

-32

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2 years ago

A scientist wishes to estimate the mean breaking strength of a certain type of steel rod within 3.0 psi with 95% confidence. Bas

yaroslaw [1]

Answer:97 rods

Step-by-step explanation:

The number of steel rods for 95% confidence level

$n=\left ( \frac{Z_\frac{\alpha }{2}\times \hat{\sigma }}{E} \right )^2$

$Z_\frac{\alpha }{2}=1.96$

E=3

$\hat{\sigma }=15$

Substituting values

$n=\left ( \frac{1.96\times 15}{3}\right )^2$

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Thus 97 rods is tested

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3 years ago

Solve for P<br><br> I am so confused

Jlenok [28]

Answer:

3q/2

Step-by-step explanation:

3p+3q=p

2p=-3q

p=-3q/2

4 0

2 years ago

Read 2 more answers

So I need to calculate the surface area for each figure. And the base is 6 and Side is 3?

Pie

Area=basexhigh so, Area= 6x3 , so answer will be 18

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2 years ago

What is the vertex of the absolute value function below?

Nonamiya [84]

Answer:

sry I just wanted the points I'm in middle school so I don't know this stuff either but can you give free brainlyest I'm soo close to my next rank I'd really appreciate it if you would

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2 years ago

Plez answer this i will mark u​

Plez answer this i will mark u