All categories

1 year ago

What is the inverse of f(x)=4x+5?

Mathematics

1 answer:

cestrela7 [59]1 year ago

3 0

Answer:

Step-by-step explanation:

swap y and x in the function. that is

$x = f(y)$

we get x=4y+5

Solve for y

(x-5)/4=y

$f ^{ - 1}(x) = \frac{1}{4} (x - 5)$

You might be interested in

How to find the side length of a square

Tju [1.3M]

Add all sides together to find the length of each side

8 0

2 years ago

What number sets do 17/3 belong to?

Delicious77 [7]

Answer:

it is an improper fraction

Step-by-step explanation: mixed=5 2/3 is the mixed fraction

8 0

2 years ago

Find the surface area of the cylinder formed by the net. Use 3.14 for π.

sineoko [7]

Answer:

138.16 square feet

Step-by-step explanation:

The surface area of the cylinder consists of one rectangle and two circles.

1. The radius of the circle is 4 ft, then the area of the circle is

$A_{circle}=\pi r^2 =\pi \cdot 4^2 =16\pi \ ft^2$

2. The width of the rectangle is 1.5 ft, the length of the rectangle is the circumference of the circle.

Find the circumference:

$C=2\pi r=2\pi \cdot 4=8\pi \ ft$

Hence,

$A_{rectangle}=1.5\cdot 8\pi =12\pi \ ft^2$

3. The surface area of the cylinder is

$SA=2A_{circle}+A_{rectangle}=\\ \\=2\cdot 16\pi +12\pi =32\pi +12\pi =44\pi \approx \\ \\\approx 44\cdot 3.14=138.16\ ft^2$

8 0

3 years ago

Anyone mind helping? Please!

maria [59]

Answer:

vertex: (0,-1)

axis of symmetry: x=0

5 0

2 years ago

Solve for x in the triangle. Round your answer to the nearest tenth. 13 32°

zloy xaker [14]

Answer:

6.9

Step-by-step explanation:

imagine a circle with the center being the point with the 32 degree angle, and with the radius 13.

then

x = sin(32)×13 = 6.9 (6.88895...)

5 0

2 years ago