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telo118 [61]
3 years ago
13

Suppose a brand of lightbulbs is normally distributed with a mean life of 1900 hours and a standard deviation of 50 hours. Find

the probability that a lightbulb will last between 1825 hours and 1980 hours
Mathematics
1 answer:
Alexxandr [17]3 years ago
6 0
I am not sure exactly how to do it but based on my knowledge, I think the answer would be 1/38
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3 Jazmin is mailing two packages. One package weighs 3 pounds, and the other package weighs 20 ounces. What is the total weight
Angelina_Jolie [31]

Answer:

68oz

Step-by-step explanation:

1) 3lbs x 16oz = 48

Now we know 3lbs is 48oz. since one pound is 16 ounces, 3 pounds is 48 ounces.

2) 48 + 20 = 68oz

3) The total weight of both packages is 68 ounces.

Jesus loves ya, have a great day!

---------------------

John 8:12 - When Jesus spoke again to the people, he said, "I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life."

8 0
3 years ago
Which is equation in point slope form for the given point and slope. Point5,9 slope2
Sedbober [7]

Answer: y - 9 = 2(x - 5)

Step-by-step explanation:

Point slope form: y - y1 = m(x - x1)

substitute 5 for x1 and 9 for y1 and 2 for m

x1 = 5

y1 = 9

m = 2

you get y - 9 = 2(x - 5)

4 0
3 years ago
Read 2 more answers
Please Help asap alot of points
Gnesinka [82]

Answer:

C

Step-by-step explanation:

3 0
3 years ago
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Find the slope of a line given the following two points: (4, 3) and (5, 2). 1 -1 2 -2
galben [10]
Given two points; (x₁,y₁) and (x₂,y₂) the slope is:

m=(y₁-y₂) / (x₁-x₂)      or      m=(y₂-y₁) / (x₂-x₁)

In this case:
(4,3)
(5,2)

m=(5-4)/(2-3)=1/-1=-1

Answer: the slope is -1
7 0
3 years ago
There are 321 crayons in a box and 204 crayons on the floor. About how many fewer than 1,000 crayons are there? Estimate. Then s
zimovet [89]

Answer:

1000 - 300 - 200 = 500

Step-by-step explanation:

estimation

3 0
3 years ago
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