2 years ago

The amount of time a certain brand of light bulb lasts is normally distributed with a

1 answer:

6 0

If anyone has seen the answers to this question then I need please post it

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Savatey [412]

I honestly don’t know

4 0

3 years ago

aev [14]

Answer:

B or D

Step-by-step explanation:

best bet is B

3 0

3 years ago

xz_007 [3.2K]

Yeah, x= 7/2 and y= -5/2
Please mark as brainliest and I hope this helps

5 0

3 years ago

Rina8888 [55]

Answer:

a is greater than or equal to 140

Step-by-step explanation:

Multiply both sides by 7, which cancels out the 7 and turns 20 into 140

6 0

2 years ago

anyanavicka [17]

Your answer simplified should be
$-6 \sqrt{30}$

7 0

4 years ago