3 years ago

Multiply (x+4)(x-3).What is the product?

Mathematics

1 answer:

il63 [147K]3 years ago

8 0

Since you have to distribute both numbers, you'll end up with x^2-3x+4x-12 then simplify and it is x^2+x-12

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Serena is making an experiment. For that, she needs 20 grams of a 52% solution of salt. She has two large bottles of salt water:

Fudgin [204]

X + y = 20 --> eqn 1
The second equation would be the mass balance shown below:
(x)(0.40) + y(0.70) = 20(0.52) --> eqn 2
Rearranging eqn 1,x = 20 - ySubstitute this to eqn 2:
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3 years ago

Whats the Area? how do i find it? In these specific questions?

just olya [345]

The formula for finding the area of a square is:
${s}^{2}$

The formula for finding the area of a triangle is:
$\frac{1}{2} bh$

So for the square the area would be:
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The area for the triangle would be:

$\frac{1}{2} {2c}^{3} \times 4c = {4c}^{2}$

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