4 years ago

Which function below is the inverse of f(x) = x2 − 16?

1 answer:

4 0

$f(x) = x^{2} - 16$
$y = x^{2} - 16$
$x = y^{2} - 16$
$x + 16 = y^{2}$
$\±\sqrt{x + 16} = \sqrt{y^{2}}$
$\±\sqrt{x + 16} = y$
$\±\sqrt{x + 16} = f^{-1}(x)$

You might be interested in

Aisle 2 of a furniture store stocks 4-legged chairs, 4-legged tables, and 3-legged stools. If there are t tables, c chairs, and

ruslelena [56]

4tx+4cx+3sx=41

You say 4x4=16

+4x4 =16

+3x3 9

5 0

4 years ago

How you write in expanded form for 9 x 475

ankoles [38]

I do not know what " expanded form" is but 9*475=4275 sorry I could not do more and always good luck

3 0

3 years ago

Read 2 more answers

Triangle ABC can't be mapped into triangle DEF with the reflection across the

omeli [17]

Across the horizon i think... i hope i helped

7 0

3 years ago

You walk 2 miles in 1212 hour. At that rate, how long will it take you to walk 3 miles?

gayaneshka [121]

<span>2 miles in 1212 hour, 1 mile = 1212/2 = 606 hours

so in 3 miles = 606 * 3 = 1,818 hours

answer: 3</span><span> miles in 1818 hours.</span>

3 0

3 years ago

Read 2 more answers

A stone is thrown straight up from earth with D(t)= -4.9 t^2 + vt where D = height in meters, t= time in seconds, and v= initial

Vedmedyk [2.9K]

Answer:

(a) D(t)= -4.9 t^2 + vt

(b) 10 sec

(d) At t= 4sec, v= 9.8m/s (upwards) and at t= 9sec, v= 39.2m/s (downwards)

(e) -24.5m

(f) -49m/s (i.e. downwards)

(g) 0

Step-by-step explanation:

(b) Time in the air = 2v/g = 10sec

(d) Velocity at any time t = v -9.8t

So, at t= 4sec, velocity = 49 – 9.8(4) =9.8m/s

at t= 9sec, velocity = 49 – 9.8(9) = -39.2m/s

(e) Average velocity = $\frac{\int\limits^9_4 {v-9.8t} \, dt }{\int\limits^9_4 {1} \, dt }$ = -24.5m

(g) the stone is thrown vertically upwards, so no horizontal distance covered.

7 0

4 years ago