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liberstina [14]
3 years ago
8

The life expectancy of a typical lightbulb is normally distributed with a mean of 2,100 hours and a standard deviation of 40 hou

rs. What is the probability that a lightbulb will last between 1,965 and 2,165 hours?
Mathematics
1 answer:
kodGreya [7K]3 years ago
3 0
\mathbb P(1965
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What is the factor of: 3х^2+ 10x +7
JulijaS [17]

Answer:

(3x+7)(x+1)

                                   -have a wonderful day-

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3 0
3 years ago
What is 5x-(8x+9)+4.5x
AnnZ [28]
Simplify the brackets.
5x - 8x - 9 + 4.5x

Collect like terms
(5x - 8x + 4.5)-9

Simplify
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5 0
3 years ago
assuming that the DVD player loses 60% of its value every year it is in a video store suppose the initial value of the DVD playe
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The multiplier you would use to find the new value would be 0.4.

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5 0
3 years ago
A hardware store sells ladders that extend up to 12 feet. The store's advertising says:
mariarad [96]

Answer:

It is true that the ladders would reach the top of the building.

Step-by-step explanation:

295 x 12 = 3540

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4 0
3 years ago
Here is a equation. Find x.<br> (2+x)5=11
Nady [450]
I am pretty sure the answer is 3.5.

(2+x)5=11

(2+x)=11/5

(2+x)= 5.5

x= 5.5-2

x= 3.5
5 0
3 years ago
Read 2 more answers
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