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3 years ago

7

In mr. B classroom, there are 29 students. Twelve students got a B, one got a C and the rest have A. What percent of the class r

eceived an A.

2 answers:

Gennadij [26K]3 years ago

7 0

Answer:

55.172 percent

Step-by-step explanation:

Tanya [424]3 years ago

7 0

55.172413793103 percent

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1 year ago

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Paraphin [41]

Answer:

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7 0

3 years ago

The area of a right triangle is given by the expression:

lorasvet [3.4K]

The expression that models the length of the second leg of the triangle is <u>2x - 3.</u>

<u><em>Recall</em></u>:

The area of a triangle = $\frac{1}{2} bh$

<em><u>Given</u></em>:

Area of triangle = $\frac{1}{2} (6x^2 - 7x - 3)$

Length of one of the legs = 3x + 1

Therefore, it means that multiplying both legs should give us:

$6x^2 - 7x - 3$

To find the expression that models the other leg, divide $6x^2 - 7x - 3$ by 3x + 1:

<em>Thus</em>:

$\frac{6x^2 - 7x - 3}{3x - 1}$

Factorize the numerator

$\frac{6x^2 - 2x - 9x - 3}{3x - 1}\\\\\frac{2x(3x - 1) - 3(3x - 1)}{3x - 1}\\\\\frac{(2x- 3)(3x - 1)}{3x - 1}$

Simplify

$\frac{(2x- 3)(3x - 1)}{3x - 1} = 2x- 3$

Therefore, the expression that models the length of the second leg of the triangle is <u>2x - 3.</u>

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Learn more here:

brainly.com/question/20712284

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2 years ago