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3 years ago

Do the ratios 20/10 and 4/2 form a proportion? Yes or no

Mathematics

1 answer:

gregori [183]3 years ago

8 0

Answer:yes

Step-by-step explanation:they are equal

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A map of Connecticut is drawn to a scale where 2 inches on the map represents 35 miles. If Greenwich and Stonington are 105 mile

Harman [31]

Answer:

is it on study iland???

Step-by-step explanation:

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4 years ago

A contractor is building The base of a circular fountain. On the blueprint the base of the fountain has a diameter of 18 centime

zavuch27 [327]

452.4

You can get this by first finding that the diameter of the actual foundation is 24ft. Then you can use the area of a circle formula with a radius of 12.

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4 years ago

Factor 4a2 - 25. Type your answer in the space provided. Type your answer in the space provided. Do not type spaces in your answ

Dvinal [7]

Answer: The answer to this question is (2a-5)(2a+5)

Step-by-step explanation:

Because first, you have to write the quadratic equation 4a^2-25 in exponential form

Then, you calculate the product by multiplying the terms with equal exponents by multiplying their bases

(2a)^2-5^2

And then last but not least, using a^2-b^2=(a-b)(a+b), factor the expression

(2a-5)(2a+5) and then there's your answer and your explanation!!!!!

8 0

3 years ago

Sansa solved the equation 1/2(8x-6)=x+9

Gnom [1K]

Answer:

x=4

Step-by-step explanation:

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4 0

3 years ago

It is estimated that there are 22 deaths for every 10 million people who use airplanes. A company that sells flight insurance pr

Alex Ar [27]

Answer:

The insurance company can make $0.78 for each policy that it sells

Step-by-step explanation:

The loss incurred to the insurance company for each death claim is:

$L = \$1-\$100,000=-\$99,999$

This event has a 22 in 10 million probability of happening.

The gain for the company for each policy not claimed is:

$G= \$1$

This event has a 9,999,978 in 10 million probability of happening.

The expected value is:

$EV =\$1*\frac{9,999,978}{10,000,000} -\$99,999*\frac{22}{10,000,000} \\EV=\$0.78$

Therefore, over the long run, the insurance company can make $0.78 for each policy that it sells.

7 0

3 years ago