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hram777 [196]
3 years ago
15

Which of the values in the set {1, 2, 3, 4} is a solution to the equation 3x + 3 = 15?

Mathematics
2 answers:
spin [16.1K]3 years ago
6 0

Answer:

4

Step-by-step explanation:

3x+3=15

3x=15-3

3x=12

x=4

dedylja [7]3 years ago
4 0

Answer:

4

Step-by-step explanation:

3x+3=15

3x=12

divide by 3

x=4

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7 0
3 years ago
Carlos started at sea level, climbed a cliff to a height of 14 m, then dived 19 m. Find the level at which has dive ended
Ipatiy [6.2K]

The answer is -5 m. Sea level is 0. Add 14 to 0 and, then take 19 away from 14. Boom! You've got your answer.

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3 0
3 years ago
What two positive real numbers whose product is 7272 have the smallest possible​ sum?
nadezda [96]
\sqrt{7272} and \sqrt{7272}, or as a rounded decimal 85.28 and 85.28. 

To find the smallest possible sum of roots for any product, the answer is always whatever numbers are closest together. This fact can be derived by the fact that the greatest area we can enclose with a given length is a perfect square. So we can take the square root of 7272 and use that, since they will be exactly the same number. 

If you are looking for whole numbers, you would have to go up or down until you find a factor of 7272 closest to the square root. In this case that would be 72 and 101. 
3 0
3 years ago
If f(x) = 5x, what is f–1(x)?
Verdich [7]
We are given f(x) = 5x
and we are to find inverse of f(x).

Step 1:
Replace f(x) by y.
So,

y = 5x

Step 2:
Isolate x
So,

x = y/5

Step 3:
Replace x by f'(y)
So,

f'(y) = y/5

Step 4:
Replace all occurrences of y by x.
So,

f'(x) = x/5

Therefore, the inverse of f(x) = 5x is f'(x) = x/5
7 0
3 years ago
What is 1,248 divide by 16?
inn [45]
I think the answer is 78. 
7 0
3 years ago
Read 2 more answers
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