2 years ago

How to do operations with scientific notation

1 answer:

7 0

1. Rewrite the number with the smaller exponent so that it has the same exponent as the number with the larger exponent by moving the decimal point of its decimal number.
2.Add/subtract the decimal numbers. The power of 10 will not change.
3. Convert your result to scientific notation if necessary.

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Solve for x. * (5x + 13) (9x - 31)

ycow [4]

Answer:

x=11

Step-by-step explanation:

5x+13=9x-31

subtract 9 from both sides.

-4x+13=-31

you want to isolate the x value so subtract 13 from both sides.

-4x=-44

now divide both sides by -4.

x=11

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2 years ago

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57.142858%

Step-by-step explanation:

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2 years ago

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topjm [15]

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Step-by-step explanation:

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2 years ago

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hoa [83]

Answer:

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Step-by-step explanation:

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1 year ago

Hello!

avanturin [10]

Answer:

7.71 km²

Step-by-step explanation:

Area of triangle:

A = 1/2bh

We have the value of b but not h.

Added auxiliary segments which help to find the value of h.

See attached for details

sin 40° = h/4
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The area is:

A = 1/2*6*2.57 = 7.71 km²

6 0

2 years ago

Read 2 more answers