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3 years ago

What shows the expression 20a - 5a

Mathematics

1 answer:

tekilochka [14]3 years ago

3 0

Answer:

20a-5a=15a

Step-by-step explanation:

20-5=15aaaaaaaa

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Solve v = 1/3 bh for b the base of the cone

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Step-by-step explanation:

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3 years ago

Given that lines a and b are parallel, angles 1 and 5 are congruent because they are corresponding angles, and angles 1 and 4 ar

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The Transitive Property of Congruency:

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3 years ago

Read 2 more answers

In 2009 a survey of Internet usage found that 79 percent of adults age 18 years and older in the United States use the Internet.

Alex777 [14]

Answer:

$0.025 = 2.33\sqrt{\frac{0.79*0.21}{n}}$

Option d.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.