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sladkih [1.3K]
3 years ago
5

Please help, I need to find this question out but I can not understand it.

Mathematics
1 answer:
Crank3 years ago
7 0

????????????????????

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Can i get the answer
Leokris [45]

Answer:

2.6

Step-by-step explanation:

by similar property

HJ=\frac{JI\times EG}{GF}\\x+16=\frac{31\times 36}{60}\\x+16=18.6\\x=2.6

5 0
3 years ago
After my salary was increased by $16\%,$ it was $\$52{,}200$. What was my salary before the increase?
boyakko [2]
The salary before the increase was $48000.
5 0
3 years ago
Cobly has 20 jars if he buys 5 more how many jars would he have
Sunny_sXe [5.5K]

Colby would have 25 jars

20 + 5 = 25

You're welcome ;)

8 0
2 years ago
Adelaide paid $35 for a manicure and gave the manicurist a 20% tip How much money did Adelaide give her manicurist
seropon [69]
<span><u><em>The correct answer is:</em></u>
$42.

<u><em>Explanation:</em></u>
The best way to find a total bill including tip (or tax if that is what you are looking for - it is found the same way), is to multiply the original total by 1 + the percentage of the tip.

Since the percentage is 20%, we add 0.20 to 1 to get 1.20.
Now we multiply that by the original cost to get the final answer.
1.20*35 = 42</span>
3 0
3 years ago
Read 2 more answers
Explain how to find (f^-1)’(b), given that b=f(a).
Ganezh [65]

Answer:

(f⁻¹)'(b) = 1/f'(f⁻¹(b)) = 1/f'(a)

Step-by-step explanation:

The function f⁻¹(x) is the reflection of the function f(x) across the line y=x. Every point (a, b) that is on the graph of f(x) is reflected to be a point (b, a) on the graph of f⁻¹(x).

Any line with slope m reflected across the line y=x will have slope 1/m. (x and y are interchanged, so m=∆y/∆x becomes ∆x/∆y=1/m) Since f'(x) is the slope of the tangent line at (x, f(x)), 1/f'(x) will be the slope of the tangent line at (f(x), x).

Replacing x with f⁻¹(x) in the above relation, you get ...

... (f⁻¹)'(x) = 1/f'(f⁻¹(x)) will be the slope at (x, f⁻¹(x))

Putting your given values in this relation, you get

... (f⁻¹)'(b) = 1/f'(f⁻¹(b)) = 1/f'(a)

7 0
3 years ago
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