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Aliun [14]
3 years ago
7

7) The area of rectangle A is twice the area of square B. Find x. 12

Mathematics
1 answer:
Veronika [31]3 years ago
6 0

Answer:

Step-by-step explanation:

A=2B

AreaA= Area of a rectangle=Base* height = base (12-x)*height(4) = 48-4x

AreaB = Area of rectangle=base(x) *Height(x) =x^2

Since A=2B

48-4x =2x^2

Divide both sides of the equation by 2

24-2x=x^2

Put everything all on one side

X^2-2x-24=0

(x+4)(x-6)=0

X=-4 and x=6

Only x makes sense since it’s not negative or else your base or one of your sides would be negative

So x=6

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Express 2x squared - 3x - 5 as the product of two binomial factors
natita [175]

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(2x - 5) (x + 1)

Step-by-step explanation:

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4 0
2 years ago
A healthy human heart beats about 1,533,000 times a year. A sparrow's heart beats about 241,776,000 times in a year. About how m
Galina-37 [17]

Answer:

About 158 times

Step-by-step explanation:

Represent the rate of human heart with H and sparrow's heart with S

H = 1,533,000\ times

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Required

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Number = 157.714285714

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5 0
2 years ago
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weqwewe [10]

Answer:

8/17

Step-by-step explanation:

right angle box means that area is the bottom

soh cah toa

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6 0
2 years ago
An animal shelter provides a bowl with 1.45 liters of water for 3 cats.
Kay [80]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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