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3 years ago

What is the answer for this?

Mathematics

1 answer:

tekilochka [14]3 years ago

8 0

Answer:

5 times 4 times 3 = 60

Step-by-step explanation:

the answer is 60

You might be interested in

Arrange the following numbers from greatest to least 0.962 0.681 1.462 0.099 0.622

S_A_V [24]

Answer:

1.462 , .962 , .671 , .622 , .099

Step-by-step explanation:

5 0

3 years ago

Problem Set:

Hoochie [10]

Answer:

Part a) $\frac{132}{89}$

Part b) 132:89 vs 132 to 89

Part c) $\frac{66}{7}$

Part d) 66:7 vs 66 to 7

Step-by-step explanation:

Let

x ----> the number of boys

y ----> the number girls

z ----> the number of adults

we have

x=132, y=89, z=14

Part a) Write the ratio of the number of boys to the number of girls.

To find the ratio of the number of boys to the number of girls, divide the number of boys by the number of girls

$\frac{x}{y}$

substitute

$\frac{132}{89}$

Part b) Write the same ratio using another form (A: B vs. A to B)

we have

$\frac{132}{89}$

The other form is

132:89 vs 132 to 89

Part c) Write the ratio of the number of boys to the number of adults

To find the ratio of the number of boys to the number of adults, divide the number of boys by the number of adults

$\frac{x}{z}$

substitute

$\frac{132}{14}$

Simplify

$\frac{66}{7}$

Part d) Write the same ratio using another form

The other form is

66:7 vs 66 to 7

7 0

3 years ago

g A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam. We ar

BaLLatris [955]

Answer:

The test statistic is $z = 1.25$

Step-by-step explanation:

We are interested in determining whether or not the proportion of the student who experience anxiety during the exam is significantly more than 80%.

At the null hypothesis, we test if the proportion is 80%, that is:

$H_0: p = 0.8$

At the alternate hypothesis, we test if the proportion is more than 80%, that is:

$H_a: p > 0.8$

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

80% is tested at the null hypothesis:

This means that $\mu = 0.8, \sigma = \sqrt{0.2*0.8} = 0.4$

A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam.

This means that $n = 100, X = \frac{85}{100} = 0.85$

The test statistic is

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{0.85 - 0.8}{\frac{0.4}{\sqrt{10}}}$

$z = 1.25$

The test statistic is $z = 1.25$

4 0

3 years ago

I will mark you as the brainiest if you get this correct Thx so much xxx

lozanna [386]

Answer:

30:24

Step-by-step explanation:

5 + 4 = 9

Divide 54 by 9

Then Multiply by 6.

Hope it helped.

5 0

3 years ago

Factor the expression completely. 63x – 9

liraira [26]

Answer:

The answer is 9(7x – 1).

Step-by-step explanation:

63x – 9

3 × 3 × 7 × x – 3 × 3

9(7x – 1)

Thus, The answer is 9(7x – 1).

-TheUnknownScientist 72

4 0

3 years ago

What is the answer for this?​

What is the answer for this?