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2 years ago

20/23 as a decimal rounded to the nearest tenth

Mathematics

1 answer:

AlladinOne [14]2 years ago

6 0

Answer:

0.9

Step-by-step explanation:

20/23 = 0.869565217, which rounded to the nearest tenth is 0.9

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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

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3 years ago

Two less than the product of 6 and a number equals 9

GalinKa [24]

Answer:

6n - 2 = 9

Step-by-step explanation:

two less than means to switch it with what comes next. Product means multiply by a number( n ). and then obviously equals is = 9.

7 0

3 years ago

Renee, her two brothers, and her two sisters combine their money together to buy their parents a gift for the holiday season. Th

aleksklad [387]

The answer is C. because every 1 out of 5 children gave up 1/2 of their money for the gift

3 0

3 years ago

Please help me, I don’t know how to solve for x on this one

Brums [2.3K]

Use trigonometry to solve for x.

The tangent function is defined to be opposite side divided by the adjacent side.

tan(78) = x/10

tan(78)(10) = x

47.0463010948 = x

We now round off to two decimal places. In other words, we round off to the nearest tenths.

47.05 = x

Done!

5 0

3 years ago

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777dan777 [17]

Am not sure but Y=-x+2

4 0

3 years ago