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3 years ago

(82 + 2) 3 - 17 PLEASE ANSWER

Mathematics

2 answers:

tatuchka [14]3 years ago

3 0

Answer:

235

Step-by-step explanation:

docker41 [41]3 years ago

3 0

Answer:

235

Step-by-step explanation:

This is a simple question for a calculator (although if you were doing it without, just do the parentheses first, multiply by the three, then subtract by 17. Hope this helps!

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A woman at a grocery store wanted to purchase a 5 pound bag of apples but thought she would first weigh the bag on the store sca

alex41 [277]

Answer:

Step-by-step explanation:

here we are interested to test the mean weight of a bag is less than 5 pound.

So null hypothesis is $H_0:\mu =5$

and alternative hypothesis is $H_1:\mu$

Let's do one sample z test.

The given information Sample size = n =100

sample mean $\overline{X}=4.38$ ,

standard deviation $\sigma =0.5$

Test statistic:Z= $\frac{\overline{X}-\mu }{\frac{\sigma }{\sqrt{n}}}$

Z= $\frac{4.38-5}{\frac{0.5}{\sqrt{100}}}=-12.4$

This is a left tailed test, hence the p value for the left tailed test and Z score= -12.4 is $\approx$ 0

Hence We can reject the null hypothesis to say that we have evidence that apple bag weight at the grocery store is less than 5 pounds and it is not a chance variation

3 0

3 years ago

It is known that the point P(−9, 18) belongs to the graph of the function y= k/x . Find k.

Kaylis [27]

Answer:

-162

Step-by-step explanation:

y = k / x

Plug in values.

18 = k / -9

Solve for k by multiplying both sides by -9.

k = -162

4 0

3 years ago

Ahh help!!

Rzqust [24]

Answer:

I think its 678.24

Hope it helps!

3 0

3 years ago

The cost of 15 ounces if chees is $6.00 what is the cost of 12 ounces of cheese

QveST [7]

Hi!

We will solve this using proportions. Let x be the cost for 12 ounces of cheese. We will start like this:

15 ounces : 6 $ = 12 ounces : x $

x $ = (6 $ * 12 ounces)/15 ounces

x $ = 72 $/15

x = 4,8$

The cost of 12 ounces of cheese is 4,8$.

Hope this helps!

7 0

3 years ago

PLEASE HELP

allochka39001 [22]

Answer:

864

Step-by-step explanation:

because if you take 8 percent of 900 72 x 12 you get 864.

4 0

3 years ago