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4 years ago

What is the value of h in the figure below? In this diagram, ABAD ~ ACBD.

Mathematics

1 answer:

Alona [7]4 years ago

6 0

Answer:

It would be helpful to show a diagram. But, since they are similar shapes, the sides will be proportional to each other. Find that proportion and you can find the missing side!

Step-by-step explanation:

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PLEASE ANSWER QUICKLY

igor_vitrenko [27]

Answer:

Point C

Step-by-step explanation:

If you retrieve 90 backwards, then you will get the point C.

6 0

3 years ago

A researcher studying public opinion of proposed Social Security changes obtains a simple random sample of 35 adult Americans an

Y_Kistochka [10]

Answer: a) 15, b) 1.

Step-by-step explanation:

A researcher studying public opinion of proposed social security changes obtains a simple random sample of 35 adult Americans and asks them whether or not they support the proposed changes. To say that the distribution of the sample proportion of adults who respond yes, is approximately normal, how many more Americans does the researcher need to sample in the following cases?

(a) 10% of all adult Americans support the changes

Here, $np>5\ and\ n(1-p)>5$

And , $p=0.10$

So, consider the equality, to find the value of 'n'.

$np=5\\\\n\times 0.10=5\\\\n=\dfrac{5}{0.10}\\\\n=50$

So, there are $50-35=15$ more adult Americans needed.

(b) 15% of all adult Americans supports the changes

Here, $p=0.15$

So, again we get that

$np=5\\\\n\times 0.15=5\\\\n=\dfrac{5}{0.15}\\\\n=33.33\\\\n\approx 34$

So, there are $35-34=1$ more adult Americans needed.

Hence, a) 15, b) 1.

5 0

4 years ago

Which expression represents the phrase "three times the sum of a number and 4"?

Alexxandr [17]

The answer is D. 3(x+4)

3 0

3 years ago

Estimate the value of √2

marusya05 [52]

Answer:

B. 0.50

Step-by-step explanation:

It claims to estimate. Square root of 2 would be somewhere around 1. Square root of 5 would be somewhere around 2. Then you divide, 1/2, and that should equal 0.50.

I hope this is correct!

3 0

3 years ago

Read 2 more answers

What is the value of x?<br> 26°<br> x =<br> = [?]

OlgaM077 [116]

Answer:

Step-by-step explanation:

The central angle and the angle between the tangents are supplementary, so

x + 26° = 180° ( subtract 26° from both sides )

26 - 26 = 0

180 - 26 = <u>154</u>

x = <u>154°</u>

6 0

3 years ago