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yuradex [85]
2 years ago
9

Please help WILL MARK BRAINLIEST HURRY LOOK AT PHOTO

Mathematics
2 answers:
Aleks04 [339]2 years ago
5 0

Answer:

I believe it is D I'm a senior in pre-cal but I also dont have paper so I did it in my head rq

Jlenok [28]2 years ago
5 0

Answer:

Option B

\red{ \boxed{ \bold{ {f}^{ - 1} (x) = \sqrt[3]{ - x - 9} }}}

Step-by-step explanation:

f(x) =  -  {x}^{3}  - 9  \\ plug \: f(x) = y \\   \implies \: y =   - {x}^{3}  - 9 \\ interchange \: x \: and \: y \\  \\ x =  -  {y}^{3}  - 9 \\  \\ x + 9 =  -  {y}^{3}  \\  \\  - x - 9 =  {y}^{3}  \\  \\   \sqrt[3]{ - x - 9}  = y \\  \\ \sqrt[3]{ - x - 9} =  {f}^{ - 1} (x) \\  \\ \red{ \boxed{ \bold{ {f}^{ - 1} (x) = \sqrt[3]{ - x - 9} }}}

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A detergent company periodically tests its products for variations in the fill weight. To do this, the company uses x-bar and R
maw [93]

Answer:

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Step-by-step explanation:

The lower control limit for xbar chart is

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xdoublebar=sumxbar/k

Rbar=sumR/k

xbar      R

5.8        0.42

6.1         0.38

16.02    0.08

15.95    0.15

16.12     0.42

6.18      0.23

5.87     0.36

16.2      0.4

Xdoublebar=(5.8+6.1+16.02+15.95+16.12+6.18+5.87+16.2)/8

Xdoublebar=88.24/8

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8 0
3 years ago
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