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Anettt [7]
3 years ago
14

Question 1 of 10

Mathematics
1 answer:
sergiy2304 [10]3 years ago
6 0

Answer: C. 2 and 3 only

Step-by-step explanation:  i did the same quiz

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65 is 13% of what number?​
emmasim [6.3K]

Answer:

20

Step-by-step explanation:

because i said so and its correct:)

8 0
3 years ago
Read 2 more answers
Will mark Brainliest!
Anettt [7]

Answer:a=2.1 :)

Step-by-step explanation:a+(-1.6)=-3.7

+1.6 +1.6

a=-2.1

5 0
3 years ago
F(x)=9(x-8) find f^-1(x)
mina [271]

Answer:

f^{-1}(x) = \frac{1}{9} x + 8

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 9(x - 8) ← divide both sides by 9

\frac{y}{9} = x - 8 ( add 8 to both sides )

\frac{y}{9} + 8 = x

Change y back into terms of x with x = f^{-1}(x) , thus

f^{-1}(x) = \frac{1}{9} x + 8

8 0
3 years ago
Find the minimum sample size needed to be 99% confident that the sample's variance is within 30% of the population's variance.
liq [111]

The Minimum sample size table is attached below

Answer:

X=173

Step-by-step explanation:

From the question we are told that:

Confidence Interval CI=99\%

Variance \sigma^2=30\%

Generally going through the table the

Minimum sample size is

X=173

7 0
3 years ago
G(n)= 2n-3 f(n)= 2n + 1 Find (g•f)(n)
Vitek1552 [10]

Answer:

Step-by-step explanation:

(2n -3)(2n+1) = 4n^2 + 2n - 6n - 3 = 4n^2 - 4n -3

6 0
4 years ago
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