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WITCHER [35]
3 years ago
10

For the function f(X) = x^2 -12, find (f o f -^1)(4) A. 6 B. 10 C. 4 D. 0

Mathematics
1 answer:
Rom4ik [11]3 years ago
6 0
Easy

we know that a function composed of it's inverse leaves x
basically
(f o f⁻¹)(x)=x

so

(f o f⁻¹)(4)=4

answer is C
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Find the angle between the given vectors to the nearest tenth of a
pochemuha

Answer: 109.1 degrees

Step-by-step explanation:

To find the angle between the given vectors, we will use the formula below:

Cos(θ) = (U.V)/ |U|.|V|

Where

U = 13i - 8j

V = 2i + 9j

U.V = (2x13) + (-8×9)

U.V = 26 - 72

U.V = - 46

|U| = sqrt ( 13^2 + 8^2)

= sqrt ( 233) = 15.264

|V| = sqrt( 2^2 + 9^2)

= sqrt ( 85 ) = 9.22

Substitute all the value of the parameters into the formula

Cos ø = -46 / (15.3 × 9.2)

Cos ø = - 46 / 140.72

Cos Ø = - 32687

Find the cos inverse of the value

Ø = cos^-1( -32687)

Ø = 109.079 degrees

Therefore, the angle between the given vectors to the nearest tenth of a degree is 109.1 degrees

6 0
3 years ago
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noname [10]
I apologize if i’m wrong but i’m pretty sure it’s B. 300 square inches
3 0
2 years ago
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ILL MAKE BRAINLY??!!!?!!!!!
Leno4ka [110]

Answer:

Mizuki here to answer! B is the correct answer!

Step-by-step explanation:

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6 0
2 years ago
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Step-by-step explanation:

To solve this problem, let's set up our equation to solve for x (time to travel 13 miles).

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We use this equation to find x. To solve, we divide 13 by 65 to get our answer.

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