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3 years ago

Hhhhhhhhhhheeeeeeelp

Mathematics

1 answer:

zaharov [31]3 years ago

7 0

Answer:

The first one.

I don't think there is anything else.

Step-by-step explanation:

"The first one" meaning

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I'M GIVING 100 POINTS FOR THIS What is the ratio of a surface area to volume of a sphere with the following measurements? Surfac

marissa [1.9K]

Answer:

Step-by-step explanation:

SA/V = 300m^2/500m^3 -------- m^2 cancel out and so d othe 100

we get 3/(5m)

Sooo, I guess that's equal to 3/5 1/m and 1/m is m^-1 so we have (B)

8 0

3 years ago

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IM GIVING 20 POINTS AND BRAINLY TO WHO GETS IT RIGHT THIS IS DUE REALLY SOON AND I NEED HELP PLSSSS

Bezzdna [24]

Answer:

5/6

Step-by-step explanation:

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3 years ago

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X2 - 7x + 9 =0 please leave answer in surf form and simplify

777dan777 [17]

Answer:

x = $\frac{7}{2}$ ± $\frac{\sqrt{13} }{2}$

Step-by-step explanation:

Given

x² - 7x + 9 = 0 ( subtract 9 from both sides )

x² - 7x = - 9

Solve using the method of completing the square

add ( half the coefficient of the x- term)² to both sides

x² + 2( - $\frac{7}{2}$ )x + $\frac{49}{4}$ = - 9 +

(x - $\frac{7}{2}$ )² = $\frac{13}{4}$ ( take the square root of both sides )

x - $\frac{7}{2}$ = ± $\sqrt{\frac{13}{4} }$ = ± $\frac{\sqrt{13} }{2}$ ( add

x = $\frac{7}{2}$ ± $\frac{\sqrt{13} }{2}$ = $\frac{7+/-\sqrt{13} }{2}$

4 0

3 years ago

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Solve the equation 4\pi =w-6\pi

maksim [4K]

Answer:

4/pi=w-6/pi

4 = w-6

Pi pi

Cross mutiply

Pi(w-6)=4(pi)

Wpi - 6pi =4pi

Collect like terms

Wpi=4pi + 6pi

Wpi =10pi

Divide both sides by pi

Wpi = 10pi

Pi pi

W = 10

5 0

3 years ago

Is this right

pychu [463]

Answer:

360 = x+123+ 90

x = 147

Step-by-step explanation:

The three angles form a circle which is 360 degrees

360 = x+123+ 90

Subtract 123 and 90 from each side

360 -123 - 90 = x

147 = x

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3 years ago

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