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Novay_Z [31]
3 years ago
8

Answer 4 and 5 pleaseeeeeeeeee

Mathematics
1 answer:
rusak2 [61]3 years ago
5 0
4.)
To solve for Y it is                To solve for X
-8y=-6x                                -8y=-6x
/-8   /-8                                  /-6  /-6
          
y=3/4(x)                                4/3(y)=x

5.) 
to solve for Y                      To solve for X
1/2(y)=4(2x-1/4)                    1/2(y)=4(2x-1/4)
1/2(y)=8x-1                            /4        /4
*2        *2                                y/8=2x-1/4
                                              +1/4     +1/4
y=16x-2                                (y/8)+1/4=2x
                                               /2           /2
                                           
                                             ((y/8)+1/4)/2=x
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Setting up and solving an equation of ratios is one of the fastest ways in which to solve this kind of probelm.

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Given f(x) = 52x, evaluate f-1), f(o), and K2).<br><br> 01/25, 1, 625
lbvjy [14]

Answer:

f(-1) = \frac{5}{2}

f(0) = 5

f(2) = 20

Step-by-step explanation:

Given

f(x) = 5(2^x)

Required

Determine f(-1); f(0) and f(2)

Solving f(-1)

In this case, we simply take x as;

x = -1

Substitute -1 for x in f(x) = 5(2^x)

f(-1) = 5(2^{-1})

Apply law of indices

f(-1) = 5 * \frac{1}{2}

f(-1) = \frac{5}{2}

Solving f(0)

In this case, we simply take x as;

x = 0

Substitute 0 for x in f(x) = 5(2^x)

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f(0) = 5

Solving f(2)

In this case, we simply take x as;

x = 2

Substitute 2 for x in f(x) = 5(2^x)

f(2) = 5(2^2)

f(2) = 5(4)

f(2) = 20

4 0
4 years ago
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Hope it helps! :)

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3 years ago
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