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3 years ago

A dime is 1 of a dollar.

Mathematics

2 answers:

Alexxandr [17]3 years ago

8 0

Answer:

A. 10 dimes

B. 30 dimes

Step-by-step explanation:

One dime is ten cents so 10 dimes are 100 witch equals 10

So if 10 dimes is one dollor 30 would be three dollars

gtnhenbr [62]3 years ago

7 0

Answer:

a 10

b 30

Step-by-step explanation:

a dime is ten cent a doller is 100 cents

ten times ten = 100

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How to find the surface area of a cube

Basile [38]

Answer:

surface area of a cube is the sum of areas of all the faces of cube , that covers it . the formula for the surface area is equal to six times of square of length of the sides of cubes , it is represented by 6a^2 , where a is the side length of cube , it is basically the total surface area.

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2 years ago

Read 2 more answers

What is the exterior angle?

olganol [36]

Answer:

angle YUT = 120

Step-by-step explanation:

in Triangle SUT

angle 70 + angle 50 + angle x = 180

70 + 50 + x = 180

120 + x = 180

x = 180 - 120

x = 60

angle SUT = 60

angle SUT + angle YUT = 180 ( straight line)

60 + x = 180

x = 120

Therefore angle YUT ( exterior angle ) = 120

7 0

4 years ago

Which point is the vertex of the quadratic function f(x)=x2−6x+8?

olya-2409 [2.1K]

(3,-1)
It needs to be written in standard form before you try to solve it.

4 0

4 years ago

Read 2 more answers

The US Census reported that it takes workers an average of 28 minutes to get home from work with standard deviation 5 minutes. A

xz_007 [3.2K]

Using the z-distribution, as we have the standard deviation for the population, to test the hypothesis, it is found that this is evidence that workers in the large city take longer than 28 minutes to get home from work.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the mean time is of 28 minutes, that is:

$H_0: \mu = 28$

At the alternative hypothesis, it is tested if the mean time is greater than 28 minutes, that is:

$H_1: \mu > 28$ .

<h3>What is the test statistic?</h3>

The test statistic is given by:

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

The parameters are:

$\overline{x}$ is the sample mean.

$\mu$ is the value tested at the null hypothesis.

$\sigma$ is the standard deviation of the sample.

n is the sample size.

In this problem, the values of the parameters are given by:

$\overline{x} = 32, \mu = 28, \sigma = 5, n = 10$

Hence:

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

$z = \frac{32 - 28}{\frac{5}{\sqrt{10}}}$

$z = 2.53$

<h3>What is the decision?</h3>

Considering that we have a <em>right-tailed test</em>, as we are testing if the mean is greater than a value, with a standard <em>significance level of 0.05</em>, the critical value is of $z^\ast = 1.645$ .

Since the test statistic is greater than the critical value, it is found that this is evidence that workers in the large city take longer than 28 minutes to get home from work.

To learn more about the z-distribution, you can check brainly.com/question/26454209

4 0

2 years ago

Can anyone help me on #3?? And explain?

Alekssandra [29.7K]

Since we know the polygons are similar, the side length ratio of each side must be equal.
13/5 = x/10
Multiply both sides by 10
x = 26
That's your answer. Have a nice day! :)

7 0

4 years ago