3 years ago

Find the value of x in the picture below.

Mathematics

1 answer:

sveta [45]3 years ago

7 0

The answer is c because

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You asked 50 randomly chosen employees of a company how many books they read each month. the diagram show the results. there 600

podryga [215]

Answer:

About 432 people read at least one book per month.

Step-by-step explanation:

36/50 people read at least one book, multiply 36/50 by 12 to make the fraction 432/600.

8 0

3 years ago

F(x)=-5x-14 find f(-9)

Pepsi [2]

Answer:

f(-9)=31

Step-by-step explanation:

f(x)=-5x-14

f(-9)=-5(-9)-14

f(-9)=45-14

f(-9)=31

6 0

3 years ago

Write these nums in order from least to greatest.

Studentka2010 [4]

The answer TO your question is the sequence B

4 0

3 years ago

A random sample of 70 printers discovered that 25 of them were being used in small businesses. find the 95% limit for the popula

kvasek [131]

Answer:

The sample proportion of printers used in small business is:

$\hat{p}=\frac{25}{70}=0.3571$

The 95% confidence interval for the population proportion of printers that are used in small businesses is:

$\hat{p} \pm z_{\frac{0.05}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n} }$

Where:

$z_{\frac{0.05}{2}}=1.96$ is the critical value at 0.05 significance level

$\therefore 0.3571 \pm 1.96 \sqrt{\frac{0.3571(1-0.3571)}{70} }$

$0.3571 \pm 0.1122$

$\left ( 0.3571 - 0.1122, 0.3571 + 0.1122 \right)$

$\left(0.245,0.469 \right)$

Therefore, the 95% confidence interval for the population proportion of printers that are used in small businesses is (0.245 , 0.469)

7 0

3 years ago

What is the value of x in this figure?

slega [8]

Check the picture below.

$\bf 10\cdot \stackrel{cos(30^o)}{\cfrac{\sqrt{3}}{2}}=x\implies 5\sqrt{3}=x$

5 0

3 years ago