3 years ago

(6.8x10^2) x (1.3x10^-3) answer as standard form

Mathematics

1 answer:

adell [148]3 years ago

6 0

Answer:

0.884

Step-by-step explanation:

You first do the exponents, do the foil, combine like terms and In the end your result will be 0.884.

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2x)(x2) + (2x)(x) + (2x)(-2) + (3)(x2) + (3)(x) + (3)(-2)

Valentin [98]

Answer:

6x^2+2x-6

Step-by-step explanation:

In the expression (2x)(x2)+(2x)(x)+(2x)(-2)+(3)(x2)+(3)(-2) take each set of two and solve those individually. The expression then becomes 4x^2+2x^2-4x+6x-6 the combining like terms you get 6x^2+2x-6.

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3 years ago

3^6 over 3^? = 3^4<br><br> What is the missing value?

netineya [11]

For the question mark, we can insert a variable considering it is an unknown number.

$\frac{3^6}{3^x} = 3^4 \\ \\ 3^{6-x} = 3^4 \ / \ use \ qotient \ rule \\ \\ 6 - x = 4 \ / \ cancel \ out \ 3 \\ \\ -x = 4 - 6 \ / \ subtract \ 6 \ from \ each \ side \\ \\ -x = -2 \ / \ simplify \\ \\ x = 2 \ / \ multiply \ each \ side \ by \ -1 \\ \\ Answer: \fbox {x = 2}$

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3 years ago

Simplify by combining like terms: 18a + 2.5a

dedylja [7]

Answer:

20.5a

Step-by-step explanation:

18a + 2.5a = 20.5a

I hope this helps!

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3 years ago

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4 years ago

Heather ran 24 miles more than Natalie last

jekas [21]

Answer:

Step-by-step explanation:

41 - 24 = 17

17 + 24 = 41

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