I need help with this question ASAP pick a, b, c or d please

Mathematics

2 answers:

Serga [27]3 years ago

6 0

Step-by-step explanation:

the answer is B

I hope it helps

ipn [44]3 years ago

5 0

The answer is

-2x + 8 = 4x - 10 and x = 1.

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You went to the mall with $80. You spend 25% of the money on shorts and 65% of the remainder on sandals. How much did the sandal

sukhopar [10]

25% of 80

25/100 or 1/4 x 80 = 20

So $20 were spent on shorts, then $60 were left over.

65% of 60 on sandals.

so 65/100 x 60 = 39

So we can see that the sandals cost $39.

7 0

3 years ago

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nirvana33 [79]

(8x^2+2x+8)+(3x^3+7x+4)=
8x^2+2x+8+3x^3+7x+4
3x^3+8x^2+(2+7)x+12=
3x^3+8x^2+9x+12

Answer: Option A. 3x^3+8x^2+9x+12

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3 years ago

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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:

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