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3 years ago

Which equation has a solution of -10? -28+32+x=-40 -28x+32x=-40 -28−32+x=6 -28x+23x=2

Mathematics

2 answers:

Leno4ka [110]3 years ago

8 0

I think it is the 3rd one but I might be wrong...

Damm [24]3 years ago

5 0

The other person is right! It is the third one...

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Terrell needs the total weight of his backpack, water jug, and sleeping bag to be less than 11 kilograms. His backpack weighs 9,

Ket [755]

He did not divide his milligrams by the proper factor. He treated it as if it were only kilograms. He should have divided by a million.

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3 years ago

A professor at a university wants to estimate the average number of hours of sleep the students get during exam week. The profes

balandron [24]

Answer:

The sample size is $n = 2$

Step-by-step explanation:

From the question we are told that

The margin of error is E =4.266

The standard deviation is $\sigma = 2.539$

From the question we are told the confidence level is 99% , hence the level of significance is

$\alpha = (100 - 99 ) \%$

=> $\alpha = 0.01$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 2.58$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2$

=> $n = [\frac{2.58 * 2.539 }{4.266} ] ^2$

=> $n = 2$

6 0

2 years ago

What is -6 multiplied by 1/2

kirill115 [55]

Turn the fraction into a decimal,so 1/2 would be .5 and then multiply that into -6 which would be -3

5 0

3 years ago

Read 2 more answers

NEED HELP!!!!!!!!!!!!!!!

musickatia [10]

It's D, it's the only one where it has a -6 at the end other than A, but if you look at the A when distributed there isn't a 23x<span />

3 0

3 years ago

Read 2 more answers

K divided by 11 is 7.<br>

sp2606 [1]

Answer:

Step-by-step explanation:

3 0

2 years ago