3 years ago

I need helpppppppppppp

Mathematics

1 answer:

Mama L [17]3 years ago

3 0

Answer:

7.5 cm

Step-by-step explanation:

it is a right triangle, b=10, hypotenuse c=12.5

a^2+b^=c^2 the Pythagorean theorm

a^=c^2-b^2

a^2= 12.5^2-10^2

= 56.25

a=√56.25=7.5 cm

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Llana [10]

Answer:

n>8 n<=2

Step-by-step explanation:

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4 years ago

1. what is f(3)?<br> 2. what is f(-2)?<br> 3. find g(10).<br> 4. given g(x) = 17, find x.

Llana [10]

Answer:

14, 19, 26, 7

Step-by-step explanation:

f(3) = 2(3)^2 - 3(3) + 5

f(3) = 2(9) - 9 + 5

f(3) = 18-9+5

f(3) = 14

f(-2) = 2(-2)^2 - 3(-2) + 5

f(-2) = 2(4) + 6 + 5

f(-2) = 8 + 6 + 5

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g(10) = 3(10) - 4

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3 years ago

Find the value of each expression.<br> -22+5

Kazeer [188]

The answer to -22+5 equals -17

4 0

3 years ago

Read 2 more answers

The price of gasoline purchased varies directly with the number of gallons of gas purchased. If 19 gallons are purchased for $22

Sergio039 [100]

Answer:

$\text{16.57 dollars}$

Step-by-step explanation:

A proportion is needed to find the value of x

$$\frac{22.50}{19} =\frac{x}{14}\Longrightarrow 19x = 315 \Longrightarrow x = 16.57$ \\ \\ \text{It would cost 16.57 dollars to purchase 14 gallons.}$

4 0

4 years ago

Suppose you got 3 out every 4 questions correct on your homework. How many total questions were on the homework if you got 12 qu

Andrej [43]

Answer:

Step-by-step explanation:

there's 12 questions

divided 12 by 4 because its every for questions

3 parts every third question is wrong

so 3 wrong = 9

5 0

3 years ago