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3 years ago

12

I need help finding the are of this

1 answer:

Allisa [31]3 years ago

3 0

Answer:

78.5

Step-by-step explanation:

3.14*5*5=78.5

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1. What is the area of the triangle below?<br> 10 in.<br> 7 in.

Alex787 [66]

Hi

<u>The area of a triangle is </u>

$\cfrac{base*height}{2}$

If we plug in the given values, we get:

$\frac{10*7}{2}$

Multiply in the numerator:

$\frac{70}{2}$

Divide:

$35$

Therefore, the area of the triangle is 35 inches squared.

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2 years ago

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alina1380 [7]

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X = [ ? ]<br><br> BRAINLEST to whoever is right!!

Nataly_w [17]

Answer:

x=125

Step-by-step explanation:

all angles of a triangle add up to 180 degrees.

30+25=55

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3 0

2 years ago

Anyone have any idea? i dont have any idea

ladessa [460]

Answer:

$\tt f(x)=2x^2+20x-10$

let y=f(x)

$\tt y=2x^2+20x-10$

$\tt 2x^2+10x=y+10$

$\tt x^2+10x=\frac{1}{2} y+5$

$\tt x^2+10x+25=\frac{1}{2} y+30$

$\tt (x+5)^2=\frac{1}{2} (y+60)$

$\tt 2(x+5)^2=f(x)+60$

$\boxed{\tt f(x)=2(x+5)^2-60}$

Hope it helps! :)

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2 years ago