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3 years ago

5(x+7)^2=245 find the steps

Mathematics

1 answer:

kakasveta [241]3 years ago

8 0

Answer:

0,-14

Step-by-step explanation:

5(x+7)²=245

divide both sides by 5

(x+7)²=49

Taking the square root of both sides

x+7=±7

Either x+7=7

subtract 7 from both sides

x+7-7=7-7

x=0

x+7=-7

subtract 7 from both sides

x+7-7=-7-7

x=-14

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<img src="https://tex.z-dn.net/?f=g%28x%29%20%3D%203x%20-%206" id="TexFormula1" title="g(x) = 3x - 6" alt="g(x) = 3x - 6" align=

VARVARA [1.3K]

Hey there! :)

Answer:

$g^{-1} (g(10))=10$

Step-by-step explanation:

Begin by calculating g(10):

g(x) = 3x - 6

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Step-by-step explanation:

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Se cocina una pizza de 20 cm de radio, en su interior se coloca al azar 12 piezas de salami

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Answer:

The area of cheese is 388π cm.

Step-by-step explanation:

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Radius of circle = 1 cm

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$A=\pi\times r^2$

Put the value into the formula

$A=\pi\times20^2$

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We need to calculate the area of circle

Using formula of area

$A'=\pi\times r^2$

Put the value into the formula

$A'=\pi\times1^2$

$A'=\pi\ cm^2$

Now, we multiply the result by 12 because they are 12 salamis.

So. the area of salamis will be

$A'=12\pi\ cm^2$

We need to calculate the area of cheese

The total area of the pizza and subtract the area of the salamis

$A''=A-A'$

Put the value in to the formula

$A''=400\pi-12\pi$

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Hence, The area of cheese is 388π cm.

6 0

3 years ago