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2 years ago

Arrange the following numbers in ascending order. 2.01, 2.0015, 2.10, -2.00, -2.20

Mathematics

1 answer:

Keith_Richards [23]2 years ago

6 0

The -2.2, -2, 2.0015, 2.01, 2.1 are in ascending order if the number is 2.01, 2.0015, 2.10, -2.00, -2.20

<h3>What is number?</h3>

A number is a mathematical entity that can be used to count, measure, or name things. For an example, 1, 2, 56 etc. are the numbers.

We have a number:

2.01, 2.0015, 2.10, -2.00, -2.20

We can arrange the numbers in ascending order.

-2.2 < -2 < 2.0015 < 2.01 < 2.1 or

-2.2, -2, 2.0015, 2.01, 2.1

We can also use number line to arrange the numbers in ascending order.

Thus, the -2.2, -2, 2.0015, 2.01, 2.1 are in ascending order if the number is 2.01, 2.0015, 2.10, -2.00, -2.20

Learn more about the number here:

brainly.com/question/17429689

#SPJ1

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A roof has the shape of an isosceles triangle with equal sides 8 cm long and base 12 m long. What is the measure of the angle of

victus00 [196]

Answer:

41 degrees to the nearest degree.

Step-by-step explanation:

A line drawn from the vertex and bisecting the base forms 2 right triangles.

The base of one right triangle = 1/2 * 12 = 6 m.

So cos A = adjacent side /hypotenuse where A is the angle of inclination.

cos A= 6 / 8 = 0.75

m < A = 41.41 degrees.

7 0

3 years ago

According to Nielsen Media Research. of all the U.S. households that owned at least one television set, 83% had two or more sets

Rudik [331]

Answer:

The proportion of U.S. households that owned two or more televisions is 83%.

Step-by-step explanation:

To determine whether the proportions of U.S. households that owned two or more televisions is less than 83% or not let us perform a hypothesis test for single proportion.

Assumptions:

The sample size (n) selected by the local cable company is 300 which is quite large. Then according to the Central limit theorem the sampling distribution of sample proportion follows a normal distribution with mean p and standard deviation $\sqrt{\frac{p(1-p)}{n} }$ .

Since the sampling distribution of sample proportions follows a normal distribution use the z-test for one proportion to perform the test.

The hypothesis is:

$H_{0}$ : The proportion of U.S. households that owned two or more televisions is 83%, i.e. $p=0.83$

$H_{1}$ :The proportion of U.S. households that owned two or more televisions is less than 83%, i.e. $p< 0.83$

Decision Rule:

At the level of significance α = 0.05 the critical region for a one-tailed z-test is:

$\\ Z\leq -1.645\\$

**Use the z table for the critical values.

So, if $\\ Z\leq -1.645\\$ the null hypothesis will be rejected.

Test statistic value:

$z=\frac{\hat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}$

Here $\hat{p}$ is the sample proportion.

Compute the value of $\hat{p}$ as follows:

$\hat{p}=\frac{X}{n} \\=\frac{240}{300}\\ =0.80$

Now compute the value of the test statistic as follows:

$z=\frac{\hat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}\\=\frac{0.80-0.83}{\sqrt{\frac{0.83*(1-0.83)}{300} } } \\=-1.383$

The test statistic is -1.383 which is more than -1.645.

Thus, the test statistic lies in the acceptance region.

Hence we fail to reject the null hypothesis.

Conclusion:

At 0.05 level of significance we fail to reject the null hypothesis stating that the proportion of U.S. households that owned two or more televisions is 83%.

6 0

3 years ago

Jenny needs to make a total of 60 deliveries this week. So far she has completed 9 of them. What percentage of her total deliver

Dmitriy789 [7]

Answer:

15%

Step-by-step explanation:

9/60 = x/100

mulitpy 9 x 100

Divide 900 by 60

and you get 15

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3 years ago

Which property can be used to expand the expression -2(3/4x+7)

geniusboy [140]

Answer:

B. the distributive property

Step-by-step explanation:

Distributive property can be used to expand the expression -2(3/4x+7).

When that property is used, we need to distrubute the monomial to the binomial which is the two terms.

$- 2( \frac{3}{4} x + 7) \\ \Longrightarrow \boxed{- 2( \frac{3}{4} x) + - 2(7)}$

#BrainliestBunch

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3 years ago

Which of the following equations can be used to find the length of BC in the triangle below??? Help :)

vivado [14]

Answer:

Step-by-step explanation:

Using Pythagoras' identity on the right triangle

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, hence

(BC)² = 10² + 30² → D

5 0

4 years ago