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faltersainse [42]
3 years ago
15

If y=80,when x=32 find x when y=100

Mathematics
1 answer:
Bess [88]3 years ago
5 0
Y        X
80     32
100    x'

80x' = 100*32
80x' = 3200
x' = 3200/80
x' = 320/8
x' = 40
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If f(x) = 2x2 + 1 and g(x) = x2 – 7, find (f – g)(x).
nadya68 [22]

Answer:  The required value is

(f-g)(x)=x^2+8.

Step-by-step explanation: The given functions are:

f(x)=2x^2+1,\\\\g(x)=x^2-7.

We are given to find the value of (f-g)(x).

We know that, if s(x) and t(x) are any two functions of a variable x, then we have

(s-t)(x)=s(x)-t(x).

Therefore, we have

(f-g)(x)\\\\=f(x)-g(x)\\\\=(2x^2+1)-(x^2-7)\\\\=2x^2+1-x^2+7\\\\=x^2+8.

Thus, the required value is

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3 years ago
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Alina [70]

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Step-by-step explanation: but please stop stealing points and saying they are cheaters they just don’t know the answer so they need help

4 0
2 years ago
Suppose you connect the points on the graph in the example, what would the graph look like?<br>​
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3 years ago
351.68 rounded to the nearest hundredth?
kobusy [5.1K]
351.60 would be the answer 
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3 years ago
Read 2 more answers
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