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2 years ago

Find the inverse function (on the given interval, if specified)

Mathematics

1 answer:

Zinaida [17]2 years ago

5 0

Step-by-step explanation:

f(x) = x² + 1, where x >= 0.

Let y be f(x).

=> y = x² + 1

=> x² = y - 1

=> x = √(y - 1) because x is non-negative.

Hence f^-1(x) = √(x - 1), where x >= 1.

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Kyra wants to make the area of her rectangular closet 9 times larger than the size it currently is. What scale factor should she

romanna [79]

Answer:

choice 3) scale factor of 3

Step-by-step explanation:

3 times length + 3 times width = 9 times area

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3 years ago

Anya contributed $1,200 toward the purchase

makvit [3.9K]

Answer:

Parent's share would be : 28%

Step-by-step explanation:

Cost of the computer = $2000

Anya's share = $1200

Brother's share = $240

Parents paid rest. That will be : 2000 - 1200 - 240 = $560

Percentage of parents share :

$\frac{560}{2000} \times 100 = 28 \%$

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2 years ago

Write the equation of a circle with center (6,4) that passes through the coordinate (2,1). In your final answer, include all of

Elodia [21]

All points along the circle with be the distance of the radius from the center...so the radius can be found using the Pythagorean Theorem..

r^2=(4-1)^2+(6-2)^2

r^2=9+16

r^2=25

r=5

The equation of the circle can be expressed as:

r^2=(x-h)^2+(y-k)^2 where (h,k) correspond to the center of the circle, (2,1) in this case.

(x-2)^2+(y-1)^2=25

if you wanted it in a more standard form...

(y-1)^2=25-(x-2)^2

(y-1)^2=25-x^2+4x-4

(y-1)^2=-x^2+4x+21

y-1=(-x^2+4x+21)^(1/2)

y=1(+/-)(-x^2+4x+21)^(1/2)

5 0

3 years ago

Read 2 more answers

The formula to find the period of orbit of a satellite around a planet is (T^2) = (4pi^2/ gm) r3 where r is the orbit’s mean rad

Inga [223]

See the attached graphic to see this solved for "r".
You should be very careful about stating the units for each of those variables.
time in seconds
radius in meters
mass in kilograms
G = 6.674 x 10^-11 m^3 / (kilograms * seconds²)
Also, it would be worth your while to go to this web page http://www.1728.org/kepler3a.htm
It has a calculator and other information about Kepler's Third Law.

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3 years ago

Please help, will give Brainliest!

Sliva [168]

PLEASE DO NOT CLICK THE LINK THAT PERSON SENT YOU ITS A VIRUS

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3 years ago