2 years ago

Please answer it. Thank you

Mathematics

1 answer:

Finger [1]2 years ago

8 0

Answer:

$5x + 1 + 90 + 7x - 7 \\ 12x + 84 \\ 12x = - 84 \\ x = 7$

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Which expression is equivalent to...

torisob [31]

Answer:

$x^{\frac{2}{7} } y^{-\frac{3}{5} } \\$ i.e answer A.

Step-by-step explanation:

This question involves knowing the following power/exponent rule:

$\sqrt[n]{x^m} = x^\frac{m}{n} \\\\so \sqrt[7]{x^2} = x^\frac{2}{7} \\\\and \\\\ \sqrt[5]{y^3} = y^\frac{3}{5} \\$

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2 years ago

A(x+1)(x-1)+b(x-2)(x+1)+(x+1)^2=9x-x-10 What is a+b?

igor_vitrenko [27]

a(x+1)(x-1)+b(x-2)(x+1)+(x+1)^2=9x^2-x-10

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Now this equation is much simpler!

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3 years ago

What is the exact distance from (−4, −2) to (4, 6)?

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d^2=8^2+8^2

d^2=64+64

d^2=128

d=√128 units

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3 years ago