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3 years ago

Evaluate the expression 9 - z9−z9, minus, z when z = 4z=4z, equals, 4

Mathematics

1 answer:

Sophie [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given the expression f(z) = 9-z

To get the value of the resulting value of the function when z = 4, all we need to do is substitute the value of z given into the function to have;

f(4) = 9-4

f(4) = 5

The right answer is 5

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3 years ago

Write 0.125 as if it was 2 to a power

Westkost [7]

Answer:

$2^{-3}$

Step-by-step explanation:

0.125 as a fraction is 125/1000 or 1/8

1 is the same as $2^{0}$ (anything to the power of 0 is 1)
8 is the same as 2³ (2 × 2 × 2 = 8)
$2^{0}$ ÷ 2³ = $2^{-3}$ (You subtract the powers: 0 - 3 = -3)

Hope this helps!

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3 years ago

Adam’s car traveled 465.3 miles on 16.5 gallons of gas. Which equation can be used to determine the average number of miles that

liq [111]

Answer:

$28.2\frac{miles}{gallon}$

Step-by-step explanation:

we know that

To find the average number of miles that the car traveled on each gallon of gas, divide the total miles by the total gallons of gas

$\frac{465.3}{16.5}\frac{miles}{gallons}=28.2\frac{miles}{gallon}$

7 0

4 years ago

Read 2 more answers

Explain how to decide whether to use graphing, substitution, or elimination to solve a system of equations.

Bess [88]

It depends on the systems of equations. I would stay away from elimination, go for substitution and graph only if asked.

4 0

3 years ago

The circumference of a circle is 212 inches What is the measurement of the diameter of the circle round your answer to the neare

Zepler [3.9K]

Hi there!
So first to find the diameter, you will need to find the radius of the circle because the diameter is twice the length of the radius.
Find the radius from the circumference, which is $2 \pi r$ .
C= $2 \pi r$
212= $2 \pi r$
212/ $2 \pi$ =r
Then solve for r.
Radius= 33.74
Then multiply the radius by 2 to find the diameter.
Diameter= 2 * 33.74
Diameter= 67.5 inches

Hope this helps :)

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3 years ago

Read 2 more answers