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3 years ago

Find the inverse of the function. is the inverse a function fx=5x-6

Mathematics

1 answer:

Ostrovityanka [42]3 years ago

8 0

$f(x)=5x-6\\\\y=5x-6\\5x=y+6\\x=\dfrac{y+6}{5}\\\\f^{-1}(x)=\dfrac{x+6}{5}$

The inverse is a function. In general, the inverse of non-constant linear function, is a function.

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The length of a rectangle is four times its width. If the perimeter of the rectangle is 90 cm, find its area

Sunny_sXe [5.5K]

Answer:

324

Step-by-step explanation:

L = 4W

P = 2L + 2W = 90

---

2L + 2W = 90

2(4W) + 2W = 90

8W + 2W = 90

10W = 90

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W = 9

L = 36

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A = 324

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7 0

3 years ago

The sides of a triangle are represented by 3x-1, 4x+7, and 2x +11. What is th

Finger [1]

Answer:

9x + 17

Step-by-step explanation:

(3x - 1) + (4x + 7) + (2x + 11)

= 3x - 1 + 4x + 7 + 2x + 11

= 3x + 4x + 2x - 1 + 7 +11

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7 months ago

Help me out with this problem ?

3241004551 [841]

Answer:

(-4.5, 2.5)

Step-by-step explanation:

The solution for two graphed linear equations is the intersection (The point where two lines meet or cross).

4 0

2 years ago

William is going to invest in an account paying an interest rate of 5.9% compounded

Valentin [98]

Answer:

$\$400.92$

Step-by-step explanation:

we know that

The formula to calculate continuously compounded interest is equal to

$A=P(e)^{rt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

e is the mathematical constant number

we have

$t=19\ years\\ A=\$1,230\\ r=5.9\%=5.9/100=0.059$

substitute in the formula above

$1,230=P(e)^{0.059*19}$

solve for P

$1,230=P(e)^{1.121}$

$P=1,230/(e)^{1.121}$

$P=\$400.92$

3 0

3 years ago

If a number is divisible by 2,5,9 what is one digit of the number

Fudgin [204]

Answer:

the lcm of the three factors will be one digit of the number

Step-by-step explanation:

4 0

2 years ago