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alisha [4.7K]
3 years ago
14

Which expression is equivalent to 3^12 • 7^9

Mathematics
1 answer:
TEA [102]3 years ago
5 0
The answers are...

B. (3 ^3) ^9 * (7 ^3) ^6
D. (3 ^3 + 3 ^9) * (7 ^6 + 7 ^3)
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Hawlp giving brainlesst
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Answer:

B. -\frac{7}{10} = -.7

Step-by-step explanation:

Replace all occurrences of  −  −  with a single  +. Two consecutive minus signs have the same mathematical meaning

-.75+\frac{2}{5}+.4-\frac{3}{4}

Find the common denominator.

\frac{-.75*20}{20} +\frac{2*4}{20} +\frac{.4*20}{20}-\frac{3*5}{20}

Simplify terms.

\frac{-15+8+8-15}{20}

Simplify the numerator.

\frac{-14}{20}

Reduce the expression by cancelling the common factors.

-\frac{7}{10}

<em>hope this helps, good luck :)</em>

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the answer for 3y-4=6-2y is y=2

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Maslowich
The side of the barn is made of 2 shapes, a triangle and a rectangle. Find the area of each shape, then add together to find the total area.

To find the area of the triangle, we multiply 1/2 x (triangle base x triangle height), we can find the triangle height by subtracting the height on the right by the height on the left, so 26.5-14.5 = 12.5ft.

The area of the triangle is 1/2 x (22.8x12.5) = 142.5 square ft.

The area of the rectangle is calculated by multiplying one side by the other, which is 22.8x14.5 = 330.6 square feet.

The total area of the side of the barn is 330.6 + 142.5 = 473.1 square feet.



Since we now know the area of the side of the barn, we can find the cost of paint needed. A one gallon paint can covers 350 square feet and costs $20, but we need to paint 473.1 square feet so we'll need to buy a second can. This means we can easily paint the side of the barn with 2 cans, costing $40 in paint.
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Answer:

45

Step-by-step explanation:

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andreev551 [17]

Answer: 480 items per day, and 14,00 items per mounth.

Step-by-step explanation:

20(24) = 480 items per day

480(30) = 14,400 items per month

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