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sweet [91]
3 years ago
10

3a^9r^-3/-4a^-2 equals?

Mathematics
1 answer:
qwelly [4]3 years ago
7 0

Answer:

-\frac{3a^{11}}{4r^{3}}

Step-by-step explanation:

If we move a up to the numerator, the - power becomes a + power, so we add the two to get a^{11}. If we do the same to r but move it to the bottom, it becomes r^{3}.

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A dripping faucet loses about 2.5×10^−4ters of water each minute. There are approximately 3×10^5 minutes in a month.
mylen [45]
That would be
2.5 * 10^-4  * 3 * 10^5  =  7.5 * 10^1
3 0
4 years ago
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One-third of a number decreased by six equals eight. What is the number?
vaieri [72.5K]

Answer:

x = 42 is the answer

Step-by-step explanation:

(1/3)x - 6 = 8

          +6   +6

(1/3)x = 14

*3           *3

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4 years ago
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Use greatest common factor and the distributive property to write an equivalent expression in factored form for the following Ex
aksik [14]
To solve this find the common number that can be divided by both and use that number.

In this case, 4 is divisible by both 4 and 12, and thus the final expression would be

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8 0
3 years ago
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The ratio of the ages of Mandy and Sandy is 2:5. After 8 years, their ages will be in the ratio 1:2. What is the difference betw
swat32

A ratio shows us the number of times a number contains another number. Caitlin is right.

<h3>What is a Ratio?</h3>

A ratio shows us the number of times a number contains another number.

The ratio of the ages of Mandy and Sandy is 2:5. Therefore, the ratio will be,

M/S = 2/5

M = 2S/5

After 8 years, their ages will be in the ratio 1:2, therefore,

(M+8)/(S+8) = 1/2

2M + 16 = S + 8

2M - S = -16 + 8

Substitute the value of M,

2(2S/5) - S = -8

-0.2S = -8

S = 40

Now, if we substitute the value of S in the first ratio,

M/S = 2/5

M/40 = 2/5

M = 16

Now, if we take the difference in their ages the difference will be 24(40-16).

Since the difference is 24, we can conclude that Caitlin is right.

Hence, Caitlin is right.

Learn more about Ratios:

brainly.com/question/1504221

#SPJ1

4 0
2 years ago
What are the coordinates of y=-2x+3
Jobisdone [24]
The coordinates are (1.5,0)and (0,3) you should try desmos.com it really helps with graphing.
4 0
3 years ago
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