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3 years ago

30-3x3/3+8(2) can someone give me an explanation for how they got the answer?

Mathematics

1 answer:

Sliva [168]3 years ago

8 0

Answer:

Step-by-step explanation:

Order of Operations first

30 - 9 / 3 + 8 x 2

30 - 3 + 16

27+16

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Write 2.36 x 10^-3 as a decimal number (ordinary form)

sergey [27]

Answer:

0.00236

Step-by-step explanation:

Move the decimal left 3 times as the exponent is negitiave 3

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2 years ago

Simplify the expression (2 square root sign 27) - (3 square root sign 32)

monitta

Answer:

$3\sqrt{3} - 4\sqrt{2}$

Step-by-step explanation:

The expression (2 square root sign 27) - (3 square root sign 32) is $2\sqrt{27} - 3\sqrt{32}$ .

To simplify, simplify inside the radicals by removing perfect square factors.

$\sqrt{27} =\sqrt{9*3} =3\sqrt{3}$

$\sqrt{32} =\sqrt{16*2} =4\sqrt{2}$

The expression becomes $3\sqrt{3} - 4\sqrt{2}$ .

This cannot be simplified anymore because whats under the radical is not the same.

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3 years ago

A submarine began a 120 feet below sea level and ascended at a rate of 13 feet per minute. What was the depth of the submarine a

Triss [41]

The submarine would be 900 below the ocean surface after 12 minutes assuming it started its descent at the surface of the ocean.

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4 years ago

Find the slope of the line please

djyliett [7]

The slope of the line is 4/1.

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How many spaces across? 1...

4 = rise

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4 RISE

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3 years ago

You find a sales receipt from a store that shows the total price as $40, and the total amount paid including sales tax as $42.

kenny6666 [7]

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