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Goshia [24]
3 years ago
13

Talib is trying to find the inverse of the function to the right. His work appears beneath it. Is his work correct? Explain your

answer. f(x) = negative 8 x + 4. y = negative 8 x + 4. y minus 4 = negative 8 x. x = (y minus 4) divided by negative 8. f Subscript negative 1 Baseline (x) = (y minus 4) divided by negative 8.
Mathematics
1 answer:
NikAS [45]3 years ago
6 0

Answer:

Talib is correct i think

Step-by-step explanation:

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The equatorial radius of Earth is approximately 6 × 103 km, while the equatorial radius of Saturn is approximately 6 × 104 km. W
Citrus2011 [14]
If by 104 and 103 you meant 10^4 and 10^3 the difference would be 10 because you subtract them as exponents and get 10^1 which is just 10. If you meant 104 and 103 as they are then the difference would be 6 as 104 x 6 is 6 more than 103 x 6.
5 0
3 years ago
A piece of a chain's length and weight are in proportion. If 320 cm of chain weighs 8 kg, then
Dafna11 [192]

Answer:

B. 80 cm of chain weighs 2 kg.

Step-by-step explanation:

In order to choose the correct answer, we need to define the comparative relation between the length and weight of the chain. We will do this by performing the simple operation of division.

It is easier to divide the larger number by the smaller and that is what we will show here (although <em>you can do as you wish and still get the same result</em> - it's math!):

320 ÷ 8 = 40

The result we got is 40. This means that <u>the length of the chain is equal to the value of forty of its weights!</u> And this will be the operation we will perform in order to determine the right answer:

A) Does 2 (kg) multiplied by 40 equal 40 (cm)? No, therefore, it is incorrect.

B) Does 2 (kg) multiplied by 40 equal 80 (cm)? <u>Yes, this answer is correct!</u>

Just in case, we will perform this action with the rest of the possible choices:

C) 4 kg × 40 = 160 and NOT 80 cm.

D) 2 kg × 40 = 80 and NOT 160 cm.

5 0
3 years ago
You are building a rectangular planter for your school garden. You want the area of the bottom to be 90ft^2. You want the length
Anestetic [448]
15 feet and 6 feet
 Hope this helps you :)<span>
</span>
6 0
3 years ago
Please help !!! I’ll mark you as brainliest if correct
kozerog [31]

Answer:

10 seconds

Step-by-step explanation:

we are given the height (s) which is 1600ft. and the formula—where t is time in seconds— t= 1/4\sqrt{s}, so we can plug 1600ft in for s and solve:

t= 1/4\sqrt{1600}

t= 1/4(40)

t= 10 seconds

5 0
3 years ago
The cost of 3 subs and 7 cookies is $18.75. Five subs and 21 cookies cost
bazaltina [42]

One sub costs $4.5 and one cookie costs $0.75 or 75 cents

Step-by-step explanation:

Let s be the cost of one sub

and

c be the cost of one cookie

Then according to given statements

"The cost of 3 subs and 7 cookies is $18.75"

3s+7c = 18.75\ \ \  Eqn\ 1

"Five subs and 21 cookies cost  $38.25"

5s+21c = 38.25\ \ \ \ Eqn\ 2

Multiplying eqn 1 by 3

9s+21c = 56.25\ \ \ Eqn\ 3

Subtracting Eqn 2 from Eqn 3

9s+21c- (5s+21c) = 56.25-38.25\\9s+21c-5s-21c = 18\\4s = 18

Dividing both sides by 4

\frac{4s}{4} =\frac{18}{4}\\s = 4.5

Putting s=4.5 in Eqn 1

3s+7c = 18.75\\3(4.5)+7c = 18.75\\13.5+7c = 18.75\\7c = 18.75-13.5\\7c =5.25

Dividing both sides by 7

\frac{7c}{7}=\frac{5.25}{7}\\c = 0.75

So,

One sub costs $4.5 and one cookie costs $0.75 or 75 cents

Keywords: Linear Equations, Variables

Learn more about linear equations at:

  • brainly.com/question/10435836
  • brainly.com/question/10541435

#LearnwithBrainly

8 0
3 years ago
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