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2 years ago

1. Find f(3) for the function below. f(x) = 4^x

Mathematics

2 answers:

Wewaii [24]2 years ago

7 0

Answer:

Step-by-step explanation:

f(x) = 4^x,

When x = 3,

=> f(3) = 4^3

= 4 * 4 * 4

= 64

Westkost [7]2 years ago

4 0

Answer:

f(3) = 64

Step-by-step explanation:

To evaluate f(3), substitute x = 3 into f(x) , that is

f(3) = 4³ = 64

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3. Write an equation of a line that is perpendicular to the line x – 2y = 8.

xenn [34]

Answer:

y=0.5x+40

Step-by-step explanation:

Copy the equation.

x-2y=8

Subtract x from both sides.

-2y=-x-8

Divide both sides by -2.

y=0.5x+4

Now we know the slope is 0.5.

Any line with a slope of 0.5 will be perpendiculr to the original line.

One that you can use is y=0.5x+40.

7 0

3 years ago

Does anybody know the answers to these? will mark brainliest!

jeyben [28]

Answer:

Tan 45=√2/n

n=√2

again

sin 45=√2/m

m=2

answer: m=2,n=√2

2.

sin 45=x/3

x=3/√2=3√2/2

y=3√2/2

ans:x=3√2/2,y=3√2/3

3.

sin 45=a/4

a=4/√2

b=4/√2

ans:a=4/√2,b=4/√2

b=4 base sides of isosceles triangle

sin 45=4/a

a=4√2

ans:a=4√2 and b=4

5 0

3 years ago

Which of the following graphs could be the graph of y = -2x +1?

photoshop1234 [79]

Answer:

Step-by-step explanation:

Graph C has a negative slope, just like the equation, and the y-intercept is at the point (0,1), just like the equation states.

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Slav-nsk [51]

Answer:

Step-by-step explanation:

it's passing thur quad I and III

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3 years ago

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