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3 years ago

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

1 answer:

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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F(x) = -3(x+4)(x-6) x intercepts

DiKsa [7]

Answer:

x = - 4, x = 6

Step-by-step explanation:

To find the x- intercepts let y = 0 , that is

- 3(x + 4)(x - 6) = 0

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

x - 6 = 0 ⇒ x = 6

7 0

2 years ago

A coin flipped 14 times and it comes up heads 10 times what is the experimental probability of the coin’s coming up heads ?

Gekata [30.6K]

The answer is B.

If a coin is flipped 14 times and lands on heads 10 times the fraction would equal to 10/14.

10/14 simplifies to 5/7.

3 0

3 years ago

Read 2 more answers

Sonia has three bracelets. she wears them all at the same time but in a diffrient order each day how many diffrent bracelet comb

LenaWriter [7]

There are 3 bracelets.
The first bracelet can occupy a position in 3 ways.
The second bracelet can occupy the remaining 2 positions in 2 ways.
The third bracelet can occupy the remaining position in 1 way.
The total number combinations is
3*2*1 = 6

Answer: 6

3 0

3 years ago

Please help! <br> Find all the missing angles ??

Natasha2012 [34]

Answer:

A 62°

B 118°

C 62°

D 118°

E 50°

F 58°

G 120°

H 120°

I 120°

J 60°

K 60°

L 60°

M 120°

N 120°

P 60°

Q 35.5°

R 49°

S 35.5°

T 109°

U 71°

V 109°

W 60°

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3 years ago

Student attendance at football games

Paladinen [302]

Collin's sampling method will better represent the entire population.

<h3>Missing part of the question</h3>

Determine which sampling method will better represent the entire population.

<h3>How to determine the better method?</h3>

From the question, we understand the Collin selected random names from the school directory.

While Karl surveyed only the students sitting close to him.

Karl's method is biased because students sitting far from him do not have a chance of being surveyed.

Hence, Collin's sampling method will better represent the entire population.