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nalin [4]
2 years ago
12

What is the value of 9^-6/9^-4?

Mathematics
1 answer:
eduard2 years ago
7 0

Answer:

9^-2 or 1/81

Step-by-step explanation:

<u>Exponent Rule:</u>

When dividing exponents, they're subtracted.

Since the second term has a negative exponent, we add.

<u>Change the problem into multiplication, then add 4 to the exponent of -6:</u>

\frac{9^{-6} }{9^{-4} } = 9^{-6} \times 9^{4}=9^{-2} or \frac{1}{81}

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A map of the world has a perimeter of 24 feet. It’s area is 32 square feet. What are the dimensions of the map?
mojhsa [17]

The dimensions of the map are 8 feet × 4 feet

Step-by-step explanation:

Step 1; It is given that the perimeter of the map is 24 feet while the area is 32 square feet. The map is in the shape of a rectangle so we need to calculate its length and its width of this rectangle. The area of any particular rectangle is given by the multiplication of its length with width. The perimeter is given by double the value of the sum of its length and width.

Step 2; Equating these we get

Perimeter = 2 (l + w) = 24 feet

Area = l × w = 32 feet.

From the perimeter formula, (l + w) = \frac{24}{2} = 12

So we have (l + w) = 12 while l × w = 32.

Step 3; Possible values of l and w are

(1 ,11), (2, 10), (3, 9), (4, 8), (5, 7), (6, 6), (7, 5), (8, 4), (9, 3), (10, 2) and (11, 1).

Out of these possibilities only (4, 8) and (8, 4) give a product of 32 but since l is greater than w we have the value of l as 8 feet while w is 4 feet.

5 0
4 years ago
Please help asap! (05.02)Mr. Morris is going to save money and replace his sailboat's mainsail himself. He must determine the ar
Ugo [173]

Answer:

300ft²

Step-by-step explanation:

you can make it a rectangle- move the dotted section to the other side and its a rectangle. area of a rectangle=bxh

20ftx15ft=300ft²

hope it helps :)

8 0
3 years ago
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Help me please ?!!….
o-na [289]
1 foot and 6 inches.
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3 years ago
Find the parallelogram 42 cm 35 cm 5 cm 15 cm​
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Answer:

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All of these are considered characteristics of Treasury Bills or T-Bills, except:
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Answer:

c. T-Bills are sold in maximum units of $500.

Step-by-step explanation:

T-Bills are sold in maximum units of $500 is not or will not be considered as a characteristic of Treasury Bill.

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3 years ago
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