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ankoles [38]
2 years ago
13

8. f(x) = -0.75x find the inverse function f-1(x) for the given functions f(x)

Mathematics
1 answer:
olasank [31]2 years ago
3 0

Answer:

\frac{x}{-0.75}=y

Step-by-step explanation:

To find the inverse of a function, you switch the x and y values and solve for y. (keep in mind that f(x) is just another way of writing y)

y=-0.75x\\x=-0.75y\\\frac{x}{-0.75}=y

so \frac{x}{-0.75}=y is our answer

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Solution to this system of linear equation <br> -6x=48-6y<br> -4x=50-6y
MrRa [10]

Answer:

\large\boxed{x=1,\ y=6\to(1,\ 6)}

Step-by-step explanation:

\left\{\begin{array}{ccc}-6x=48-6y&\text{change the signs}\\-4x=50-6y\end{array}\right\\\underline{+\left\{\begin{array}{ccc}6x=-48+6y\\-4x=50-6y\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad2x=2\qquad\text{divide both sides by 2}\\.\qquad x=1\\\\\text{Put it ot the first equation:}\\-6(1)=48-6y\\-6=48-6y\qquad\text{subtract 48 from both sides}\\-54=-6y\qquad\text{divide both sides by (-6)}\\9=y\to y=6

7 0
3 years ago
The temperature at midnight was -12 degrees F. The temperature rose to 28 degrees by noon.
Zolol [24]
Figure out how many degrees the temperature changed from midnight to noon.

-12 to 28 is 40.
So the temperature change was 40 degrees F from midnight to noon
6 0
2 years ago
PLEASE HELP WILL MARK BRAINLIEST
Anni [7]

Answer:

431,707

Step-by-step explanation:

To figure out the total number, you need to divide the part of the whole by the percentage it is of the whole.  This means that you need to divide 35,400 by 8.2%.

Before dividing the percentage, you need to convert it to a decimal.

8.2% = 0.082

Divide the number to find the answer.

35,400/0.082 = 431,707.3

Converted to the nearest whole number, the answer is 431,707.

6 0
3 years ago
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Sergio039 [100]

Answer: B. 5

Hope this helps! :)

7 0
3 years ago
Can someone help me with 4-6 plz
satela [25.4K]

Step-by-step explanation:

4. To use SSS, you need three pairs of congruent sides.  You're given two pairs of congruent sides, so the additional information needed is WY ≅ KM.

5. To use ASA, you need a pair of congruent sides between two pairs of congruent angles.  You're given one pair of congruent angles, and since the triangles share a common side, we know BC ≅ BC.  So the additional information needed is ∠WBC ≅ ∠ACB.

6. To use SAS, you need a pair of congruent angles between two pairs of congruent sides.  You're given two pairs of congruent sides, so the additional information needed is ∠I ≅ ∠F.

4 0
3 years ago
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