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4 years ago

The graph shows the function f(x) = 2^x.what is the value of x when f(x) = 4

Mathematics

1 answer:

Aliun [14]4 years ago

7 0

Answer: answer is 2

Step-by-step explanation:

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Solve for d, reduce any fractions to lowest terms, help please it’s 4:15, I just wanna go to bed :(

Digiron [165]

<h3>Solution:</h3>

-38d - 57 = -19d + 76

or, -38d + 19d = 76 + 57

or, -19d = 133

or, d = 133/-19 = -7

<h2>Answer: d = -7</h2>

<h3>To Check:</h3>

By putting the value of d, we get

-38(-7) - 57 ≥ -19(-7) + 76

or, 266 - 57 ≥ 133 + 76

or, 209 ≥ 209

Hence, Verified.

8 0

3 years ago

Read 2 more answers

find an equation of the line satisfying the given conditions. write the equation using function notation. Through (-20,5) and (-

denis23 [38]

Answer:

The equation of the line using function notation is

$y=f(x)=-\frac{1}{4}x$

Step-by-step explanation:

Given points are (-20,5) and (-36, 9)

Now to find the equation of the line passes through these points

Let $(x_{1},y_{1})$ and $(x_{2},y_{2})$ be the two given points (-20,5) and (-36, 9) respectively.

To find slope

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$m=\frac{9-5}{-36-(-20)}$

$m=\frac{4}{-36+20}$

$m=\frac{4}{-16}$

$m=-\frac{1}{4}$

Therefore $m=-\frac{1}{4}$

The equation of the line is of thr form y=mx+c

The point (-20,5) passes through the above line and $m=-\frac{1}{4}$

$5=-\frac{1}{4}(-20)+c$

$5=5+c$

$c=0$

$y=-\frac{1}{4}x+0$

Therefore $y=-\frac{1}{4}x$

Therefore the equation of the line using function notation is

$y=f(x)=-\frac{1}{4}x$

6 0

3 years ago

1/2 x 1/2 equals how much

alexdok [17]

Answer: 1/4

Step-by-step explanation: When multiplying two fractions together, we multiply across the numerators and we also multiply across the denominators.

$So$ $(\frac{1}{2}) (\frac{1}{2})$ $is$ $\frac{1}{4}.$

4 0

4 years ago

Read 2 more answers

What is the probability that the person is male or divorced

sukhopar [10]

Answer:

3 and one third %

3.3333%

Step-by-step explanation:

4 0

3 years ago

Plz help me outt ASAP

Scilla [17]

Answer:

i cant see

it take a clouser pic dodo

Step-by-step explanation:

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3 years ago

The graph shows the function f(x) = 2^x.what is the value of x when f(x) = 4​

The graph shows the function f(x) = 2^x.what is the value of x when f(x) = 4