2 years ago

Find the probability that a randomly selected light bulb will last between 750 and 825 hours.

1 answer:

4 0

The probability that is recieved out of the lightbulb is a 750:825. If you divise these numbers, then you find that it becomes .9091

You might be interested in

Dear Math Helper, You write a great column, and I hope you stay around for years to come. I run a small boarding school. We are

inessss [21]

The easiest way to determine the score is to use a calculator or spreadsheet and the appropriate probability function.

If you want the top 10%, the score corresponds to the 90th percentile. That score is 316.

If you want the top 15%, the score corresponds to the 85th percentile. That score is 313.

5 0

2 years ago

A what is an equation stating that two ratios or rates are equal

frozen [14]

The equation is
(A ≠ B)
A is the first number, ratio, rate, etc. , and B is the second.
The ≠ symbol means "does not equal", so the equation means:
[ Ratio A is NOT equal to Ratio B. ]

8 0

2 years ago

Write 39,005 in expanded form

vlada-n [284]

(3 * 10,000) + ( 9* 1,000) + ( 5* 1)

8 0

2 years ago

Read 2 more answers

The angles of a triangle are in the ratio 5:3:7 find the angles

omeli [17]

Answer:

60, 36, 84

Step-by-step explanation:

The angles of a triangle always add up to 180 degrees.

If the ratios are 5:3:7, that means that there are 15 pieces that we can break up the 180 degrees by.

180/15 = 12

Each value is 'worth' 12 degrees.

Thus the angles would be the ratios multiplied by 12.

5 x 12 = 60

3 x 12 = 36

7 x 12 = 84

3 0

2 years ago

Show all steps 2a=22

aivan3 [116]

Answer:

Hello! answer: a = 11

Step-by-step explanation:

2 × 11 = 22 So therefore a = 11 HOPE THAT HELPS!

3 0

2 years ago