3 years ago

What is the answer to the picture below

Mathematics

1 answer:

KengaRu [80]3 years ago

6 0

I believe your answer is C

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The length of a rectangle is 7 more than the width the area is 744 square centimeters find length and width of rectangle

andrezito [222]

Answer:

$l=31\ cm\\\\w=24\ cm$

Step-by-step explanation:

The formula that is used to calculate the area of a rectangle is:

$A=lw$

Where "l" is the lenght and "w" is the width.

You know that the area of that rectangle is:

$A=744\ cm^2$

And, according to the exercise, its lenght is 7 more than its width; then:

$l=w+7$

Then, you can make the corresponding substitution into the formula $A=lw$ :

$744=(w+7)w$

Simplify:

$744=w^2+7w\\\\w^2+7w-744=0$

Factor the equation. Find two numbers whose sum is 7 and whose product is -744. These are 31 and -24.

Then, you get:

$(w-24)(w+31)=0\\\\w_1=24\\\\w_2=-31$

The width of the rectangle is the positive value:

$w=24\ cm$

Then, the lenght is:

$l=24+7\\\\l=31\ cm$

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3 years ago

An internet service provider uses the function R = 3 log(a + 2) + 15 to relate R, the sales revenue from hosting websites, to a,

elena55 [62]

Answer:

a=10R−153−2

Step-by-step explanation:

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3 years ago

Rewrite the radical expression as an exponential expression, and then simplify.

serg [7]

The third answer option is correct. sqrt(x) = x^(1/2). So sqrt(121) = 121^(1/2).

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What is the volume of the cylinder below?

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3 years ago

Two fractions negative whose product is 5/8

Andreyy89

You could do -1/-2 times -5/-4 which would be 5/8

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