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Georgia [21]
3 years ago
8

Can anyone show me how To do this! Please

Mathematics
1 answer:
Maslowich3 years ago
7 0

Answer:

Step-by-step explanation:

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the expression 5n+2 can be used to find the total cost in dollars of bowling where n is the number of games bowled and 2 represe
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5(3) + 2
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3 years ago
Which equation is equivalent to √x^2+81 = x+10
jeka57 [31]

Keywords:

<em>equation, operations, equivalent, binomial, square root </em>

For this case we have an equation in which we must apply operations to rewrite it in an equivalent way. We must start by raising both sides of the equation to the square. Thus, we eliminate the square root of the left side of equality and finally solve the binomial of the right side of equality.

So we have:

\sqrt {x ^ 2 + 81} = x + 10\\(\sqrt {x ^ 2 + 81}) ^ 2 = (x + 10) ^ 2\\x ^ 2 + 81 = (x + 10) ^ 2

By definition:(a + b) ^ 2 = a ^ 2 + 2ab + b ^ 2

x ^ 2 + 81 = x ^ 2 + 2 (x) (10) + (10) ^ 2\\x ^ 2 + 81 = x ^ 2 + 20x +100

Thus, x ^ 2 + 81 = x ^ 2 + 20x +100 is equivalent to \sqrt {x ^ 2 + 81} = x + 10

Answer:

x ^ 2 + 81 = x ^ 2 + 20x +100

Option D

4 0
3 years ago
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Given side AB in ΔABC has length x, what is the length of side AC?
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Answer:

2x

Step-by-step explanation:

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Barry has 18 more marbles then Heidi. If Barry has 92 marbles, write and solve an equation to determine the number of marbles He
Effectus [21]
92-18=74


Heidi has 74 marbles.

Self Check: 74+18=92
7 0
3 years ago
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When purchased, a plastic beach ball is deflated and packaged flat. The package states that when inflated to its maximum capacit
Zigmanuir [339]
So  the formula for a volume of a sphere is 4/3 times pi times the radius cubed.
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Step two: then you cube 8.5 and get 592.45
the final answer is 2,480.3906 

6 0
3 years ago
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