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3 years ago

A. C+7<_3 B. C - 3 > 1 C. C - 7< 3

Mathematics

1 answer:

olga_2 [115]3 years ago

8 0

$c + 7 < 3$

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Given that f(x) = x + 3 a) Find f(2)

Nataly_w [17]

${ \qquad\qquad\huge\underline{{\sf Answer}}}$

Here we go ~

In the above question, it is given that :

$\qquad \sf \boxed{ \sf f(x) = \frac{x + 3}{2} }$

A.) Find f(2) :

$\qquad \sf \dashrightarrow \: f(2) = \dfrac{2 + 3}{2}$

$\qquad \sf \dashrightarrow \: f(2) = \dfrac{5}{2}$

$\qquad \sf \dashrightarrow \: f(2) = 0.5$

B.) Find ${ \sf {f}^{-1}(x) }$ :

$\qquad \sf \dashrightarrow \: let \: y = f (x)$

so, we can write it as :

$\qquad \sf \dashrightarrow \: y = \dfrac{x + 3}{2}$

$\qquad \sf \dashrightarrow \: 2y = x + 3$

$\qquad \sf \dashrightarrow \: x = 2y - 3$

Now, put x = ${ \sf {f}^{-1}(x) }$ , and y = x and we will get our required inverse function ~

$\qquad \sf \dashrightarrow \: f {}^{ - 1}(x) = 2x- 3$

C.) Find ${ \sf {f}^{-1}(12) }$ :

$\qquad \sf \dashrightarrow \: f {}^{ - 1}(12) = 2(12)- 3$

$\qquad \sf \dashrightarrow \: f {}^{ - 1}(12) = 36- 3$

$\qquad \sf \dashrightarrow \: f {}^{ - 1}(12) = 33$

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8 months ago

PLZ HURRY IT'S URGENT!!!! Which ratio is equivalent to 14/21? A. 2/3 B. 1/7 C. 3/4 D. 2/7

Naddik [55]

Answer:

The correct answer here is 2/3

Step-by-step explanation:

That is because 7 doubled is 14 and 7 multiplied by 3 is 21.

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3 years ago

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Rosa bought d drawings to and art show. After selling 14 of them she had 34 left. Identify the equation that represents this sit

Alexxx [7]

Answer:

14+34=d hope this helps

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3 years ago

Actor the following expressions: 10n + 15 GCF: Check: 1

ZanzabumX [31]

Answer: GCF = 5 (5 goes into both 10 and 15)

Step-by-step explanation:

10n/5= 2n

15/5=3

if we factor it out it would be:

5(2n+3)

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3 years ago

Hello there can you please help me out posted picture of question

Alchen [17]

Your answer is Graph A.
Hope this helps :)!!!

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3 years ago

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