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vodomira [7]
3 years ago
6

Solve x2 − 20 = 0. If necessary, round to the nearest hundredth.

Mathematics
1 answer:
kicyunya [14]3 years ago
3 0

Answer:

<u>x</u><u> </u><u>is</u><u> </u><u>4</u><u>.</u><u>4</u><u>7</u>

Step-by-step explanation:

{ \sf{ {x}^{2} - 20 = 0 }} \\ { \sf{ {x}^{2}  = 20}} \\ { \sf{x =  \sqrt{20} }} \\ { \sf{x = 4.47}}

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The answer is 76

I hope this helped you.

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3 years ago
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PLEASE HELP PRE CAL!!
Len [333]

Answer:

Width = 2x²

Length = 7x² + 3

Step-by-step explanation:

∵ The area of a rectangle is 14x^{4}+6x^{2}

∵ Its width is the greatest common monomial factor of 14x^{4} and 6x²

- Let us find the greatest common factor of 14 , 6 and x^{4} , x²

∵ The factors of 14 are 1, 2, 7, 14

∵ The factors of 6 are 1, 2, 3, 6

∵ The common factors of 14 and 6 are 1, 2

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∴ The greatest common factor of 14 and 6 is 2

- The greatest common factor of monomials is the variable with

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∴ The greatest common factor of x^{4} and  x² is x²

∴ The greatest common monomial factor of  14x^{4} and 6x² is 2x²

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To find the length divide the area by the width

∵ The area = 14x^{4}+6x^{2}

∵ The width = 2x²

∴ The length = ( 14x^{4}+6x^{2}) ÷ (2x²)

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8 0
3 years ago
a chef uses 5 2/5 pounds of ground beef to make a hamburger and 2 1/4 pounds of ground beef to make meatloaf. the ground beef co
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Answer:

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Step-by-step explanation:

5 2/5 + 2 1/4  Use the common denominator of 20

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I know that I will need 14 packages for the 7 pounds.  For the fraction part, 10/20 would be half, so I would need to buy a half pound for that, but I need 13/20 which would be more than a half pound, so I will need to buy 2 more pounds for the fraction part.

14 + 2 = 16

8 0
1 year ago
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Answer:

the awnser is b

Step-by-step explanation:

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Answer:

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