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AysviL [449]
3 years ago
6

Simplify the expression. (0.4x10^-6)(0.7x10^-2)

Mathematics
1 answer:
harina [27]3 years ago
5 0

Answer:

2.8 ·  10^(-9)

Step-by-step explanation:

I'd suggest you do this problem through two separate multiplications:

First, 0.4·0.7 = 0.28, or 2.8 · 10^(-1)

Second, 10^(-6) · 10^(-2) = 10^(-8), and so the final result is

2.8 · 10^(-1) · 10(-8)  =  2.8 ·  10^(-9)

Please note:  negative exponents (such as -9, above) should be enclosed in parentheses for added clarity.

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3(x+5)^2-12=0. What does x equal
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Answer:

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Step-by-step explanation:

Let's solve your equation step-by-step.

3(x+5)2−12=0

Step 1: Simplify both sides of the equation.

3x2+30x+63=0

Step 2: Factor left side of equation.

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Step 3: Set factors equal to 0.

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2 years ago
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Step-by-step explanation:

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