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Burka [1]
3 years ago
7

4percent of what is 56

Mathematics
2 answers:
Anna007 [38]3 years ago
7 0
4%  of what is 56.    Let the what be x.

4% of x = 56

(4/100) x = 56

x =  56 * 100/4 = 56 * 25 = 1400

x = 1400

4 percent of 1400 is 56.
sdas [7]3 years ago
6 0
1400 is the answer jsut mutliply 56 by 25
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3 years ago
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katrin [286]

Answer:

Option B. minimum is correct for the first blank

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Step-by-step explanation:

In order to find the maxima or minima of a function, we have to take the first derivative and then put it equal to zero to find the critical values.

Given function is:

f(x) = x^2-10x+31

Taking first derivative

f'(x) = 2x-10

Now the first derivative has to be put equal to zero to find the critical value

2x-10 = 0\\2x = 10\\x = \frac{10}{2} = 5

The function has only one critical value which is 5.

Taking 2nd derivative

f''(x) =2

f''(5) = 2

As the value of 2nd derivative is positive for the critical value 5, this means that the function has a minimum value at x = 5

The value can be found out by putting x=5 in the function

f(5) = (5)^2-10(5)+31\\=25-50+31\\=6

Hence,

<u>The function y = x 2 - 10x + 31 has a minimum  value of 6</u>

Hence,

Option B. minimum is correct for the first blank

Option C. 6 is correct for second blank.

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