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Margaret [11]
3 years ago
7

Can someone put true or false? Please make sure you answer is correct and label them like this:

Mathematics
1 answer:
uysha [10]3 years ago
4 0
1. true.
2. false.
3. false.
4. true.

these should be correct.
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Consider function f.
tekilochka [14]

Given:

The function is:

f(x)=\sqrt{7x-21}

To find:

The steps of finding the inverse function f^{-1}(x).

Solution:

We have,

f(x)=\sqrt{7x-21}

The steps of finding the inverse function are:

Step 1: Substitute f(x)=y.

y=\sqrt{7x-21}

Step 2: Interchange x and y.

x=\sqrt{7y-21}

Step 3: Taking square on both sides, we get

x^2=7y-21

Step 4: Adding 21 on both sides, we get

x^2+21=7y

Step 5: Divide both sides by 7.

\dfrac{1}{7}x^2+3=y

Step 6: Substitute y=f^{-1}(x).

\dfrac{1}{7}x^2+3=f^{-1}(x), where x\geq 0.

Therefore, the inverse of the given function is f^{-1}(x)=\dfrac{1}{7}x^2+3 and the arrangement of steps is shown above.

7 0
3 years ago
3,600<br> The square roots are<br> and
ehidna [41]

Answer:

60

Step-by-step explanation:

60x60=3,600

6 0
3 years ago
Please someone help me out!!!!!!!!!!
german

Answer:

Step-by-step explanation:

6 0
3 years ago
Fitness Classes cost £6 per person. The table shows the number of people who go to the classes on Thursday, Friday and Saturday.
Pachacha [2.7K]

Answer:

£216

Step-by-step explanation:

  • Cost = £6 per person
  • Teacher earns = 90% of total

<u>Total number of people:</u>

  • 13 + 11 + 16 = £40

<u>Total paymen</u>t:

  • 40*6= £240

<u>Teacher earns in total per given week:</u>

  • 240*90/100 = £216

7 0
3 years ago
BRAINLEST IF ANSWERED QUICKLY AND CORRECT
Feliz [49]

Answer:

i think its b i'm not entirely sure

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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