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Eduardwww [97]
2 years ago
12

What is the value of f^{-1}(4)f

Mathematics
2 answers:
charle [14.2K]2 years ago
4 0

Answer:-7

Step-by-step explanation:

trust me lol

Dovator [93]2 years ago
3 0

Answer:

7

Step-by-step explana

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If a storm window is 315 square inches, what are the dimensions if the window is 6 inches higher than it is wide
viva [34]

\bf \textit{area of a rectangle}\\\\ A=Lw~~ \begin{cases} L=length\\ w=width\\[-0.5em] \hrulefill\\ L=\stackrel{\textit{6 more than \underline{w}}}{w+6}\\ A=315 \end{cases}\implies 315=(w+6)(w) \\\\\\ 315=w^2+6w\implies 0=w^2+6w-315 \\\\\\ (w+21)(w-15)=0\implies w= \begin{cases} -21\\ \boxed{15} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill w=15\qquad \stackrel{w+6}{L=21}~\hfill

3 0
3 years ago
What is 8.2% of 500?
GuDViN [60]

Answer:

8.2% of 500 = 41

Step-by-step explanation:

Set up the equation. On a piece of paper, write the dividend (number being divided) on the right, under the division symbol, and the divisor (number doing the division) to the left on the outside. ...

Divide the first digit. ...

Divide the first two digits. ...

Enter the first digit of the quotient.

5 0
3 years ago
Read 2 more answers
amanda read 15 pages of her 150-page book in 2 hours. At this rate, how long will it take her to read the entire book?
irina [24]
20 hours. You find this by dividing 150 by 10 and then multiplying that by 2. 
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3 years ago
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What is the decimal at the bottom of an element on the periodic table​?
attashe74 [19]

Answer:

The atomic mass

Step-by-step explanation:

The decimal at the bottom of an element represents how much one atom of that element weighs.

5 0
3 years ago
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To rent an instrument from the school it costs a $50 insurance fee and then $350 per day of use. If Sally rents her instrument f
Ne4ueva [31]

Answer:

$2,500

Step-by-step explanation:

$350 per day for 25 days

350*25=2450

Add the 50 for insurance and that makes it 2500

If its wrong im sorry

5 0
2 years ago
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