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2 years ago

ASAP how did you get the answer (Will mark brianist)

Mathematics

1 answer:

Travka [436]2 years ago

6 0

The answer is A. None of the other answers would make sense and because choosing 10 from each classroom will provide a better result then the other two.

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What is the value of x? A.39 B.41 C.26 D.17

mojhsa [17]

Answer:

The answer is B.

Step-by-step explanation:

You have to use Pythogorean Theorem, c² = a² + b² where c is the hypotenuse and a,b is the side lengths :

${c}^{2} = {a}^{2} + {b}^{2}$

Let a = 40,

Let b = 9,

${c}^{2} = {40}^{2} + {9}^{2}$

${c}^{2} = 1600 + 81$

${c}^{2} = 1681$

$c = \sqrt{1681}$

$c = 41 \: units$

*Take note, hypotenuse will always be the longest length among the 3 lengths.

*Pythogorean Theorem can only applied in a right-angle triangle.

3 0

2 years ago

The length of a rectangle is 18 centimeters less than five times it's width. It's area is 35 square centimeters. I need to find

Fiesta28 [93]

$\frac{(5x-18)(x)}{2} =35$
$(5x-18)(x)=70$
$5x^2-18x-70=0$
By the time you factorize this, you will get
x = 5.9521078984053 or -2.3521078984053
Please mark me as brainliest.

4 0

3 years ago

4.5 x 10^16 molecules of carbon dioxide are equal to how many moles?

IgorC [24]

Step-by-step explanation:

1 mole of any substance = 6.022 * 10²³ molecules.

Number of moles of CO2

= (4.5 * 10¹⁶)/(6.022 * 10²³)

= 0.75 * 10^(-7)

= 7.5 * 10^(-8) mol.

6 0

2 years ago

Mal works at a photo gallery. He charges $50 for a large photo and $40 for a large frame. Sales tax is 5%.

sasho [114]

Answer:

The total amount that the consumer had to pay for both products was $ 94.50.

Step-by-step explanation:

Given that Mal sold a large photo for $ 50 and a large frame for $ 40, and that the sales tax for these products is 5%, to determine the total amount that the consumer had to pay to purchase these products arises from the following calculation:

(50 + 40) x 1.05 = X

90 x 1.05 = X

94.5 = X

Therefore, the total amount that the consumer had to pay for both products was $ 94.50.

3 0

2 years ago

Read 2 more answers

A computer network manager wants to test the reliability of some new and expensive fiber-optic ethernet cables that the compute

Rudiy27

Answer:

The population is 4 boxes with each having 30 cables.

Meanwhile the sample size is 1 box and 6 cables.

8 0

3 years ago