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3 years ago

8

What is the value of 4(3x + 5) when x = 11?

1 answer:

navik [9.2K]3 years ago

5 0

Answer:

152

Step-by-step explanation:

3(11)= 33

4(33+5)

4(33)=132

4(5)=20

132+20=152

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10. For f(x) = 3 - 5x, find f(-5).<br> A. –22<br> B. -7<br> C. 3<br> D. 28

Artist 52 [7]

Answer:

D

Step-by-step explanation:

$3 - 5( - 5) \\ 3 - ( - 25) \\ 3 + 25 \\ 28$

4 0

3 years ago

Help me please!

telo118 [61]

Answer:

$f^{-1}(6) = 50$

Step-by-step explanation:

Given

$f(x) = \sqrt{2x} - 4$

Required

Find $f^{-1}(6)$

First, we calculate the inverse function

$f(x) = \sqrt{2x} - 4$

Express f(x) as y

$y = \sqrt{2x} - 4$

Swap the positions of x and y

$x = \sqrt{2y} - 4$

Solve for y: Add 4 to both sides

$4 + x = \sqrt{2y} - 4+4$

$4 + x = \sqrt{2y}$

Square both sides

$(4 + x)^2 = 2y$

Divide both sides by 2

$y = \frac{(4 + x)^2}{2}$

Express y as an inverse function

$f^{-1}(x) = \frac{(4 + x)^2}{2}$

Next, solve for: $f^{-1}(6)$

Substitute 6 for x

$f^{-1}(6) = \frac{(4 + 6)^2}{2}$

$f^{-1}(6) = \frac{(10)^2}{2}$

$f^{-1}(6) = \frac{100}{2}$

$f^{-1}(6) = 50$

7 0

3 years ago

Multiply 3/4 x 16/9. A. 4/3 B. 3/4 C. 27/64 D. 64/27

Naddika [18.5K]

3/4 of 16/9 = 12/9
**************************************************************

4 0

3 years ago

What is the solution set for -2n-2≥2?<br> A. n≤-2<br> B. n≥-2<br> C. n≤0<br> D. n≥0

shusha [124]

Answer:

n≤−2 or A

Step-by-step explanation:

because i know

7 0

3 years ago

Read 2 more answers

PLS HELP ME ty<br> i know its simple i just need some help on this one

Keith_Richards [23]

Answer:

12t^-6

Step-by-step explanation:

-4 + - 2 = - 6

2*6 = 12

7 0

3 years ago