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Ksju [112]
2 years ago
13

Answer to this equation 5x^2+2=7

Mathematics
2 answers:
Pie2 years ago
8 0

Answer:

x=1

Step-by-step explanation:

astra-53 [7]2 years ago
7 0

Answer:

x= 1  and x= -1

Step-by-step explanation:

5x^{2} +2=7

(subtract 2 from both sides)

5x^{2} =5

(divide by 5 from both sides)

x^{2} =1

(take the square root from both sides)

x=±√1

so,

x= 1

and

x= -1

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Aleks [24]

Step-by-step explanation:

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4 0
2 years ago
You bought a large cooler that holds 55 gallons. How many quarts is that?
Leno4ka [110]
I'm confused because the answer is 220 quarts.
If you look at the other one you asked, I explained it.
6 0
3 years ago
A 3 cm x 3 cm rectangle sits inside a circle with radius of 4 cm.
Ivanshal [37]

Step-by-step explanation:

you did not show us the picture or described what the shaded area is.

I assume it is the area of the circle without the inner square (as the "rectangke" is actually a square, because its sides are equally long).

so, we need to calculate the area of the circle and subtract the area of the square.

the area of the square is 3×3 = 9 cm².

the area of the circle is

pi×r²

with r being the radius.

so,

pi×4² = pi×16 = 16pi

the shaded area is then

16pi - 9 = 41.26548246... cm² ≈ 41.27 cm²

nothing of the answer options seems to be in that area, so maybe my assumption about the shaded area is wrong. or the specified answer options are mistyped. or both.

anyway, without additional information that is the best I can do.

8 0
1 year ago
NEED HELP! WILL MARK BRAINLIEST
ICE Princess25 [194]

Answer:

im pretty sure its 27.

Step-by-step explanation:

if g(x) = 20 then the new problem is 20=x-7

20=x-7 . add 7 to both sides

+7=+7 . +7 cancels out the -7

27=x . <<<answer

6 0
2 years ago
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Mademuasel [1]
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8 0
3 years ago
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