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insens350 [35]
3 years ago
11

Find the probability that a Type A bulb lasts at least 300 hours and a Type B bulb lasts at least 400 hours.

Mathematics
1 answer:
barxatty [35]3 years ago
5 0

Answer:

P(X>3)P(X>4)=(1-F_1(3))(1-F_2(4))

Step-by-step explanation:

We require more information by I will explain in principle:

If Type A has at least 300 hours and Type B at least 400 hours.

(X>3)(Y>4)=P(X>3)P(X>4)

You need to determine the Probability density function of X and Y and then subtract 1 from both

P(X>3)P(X>4)=(1-F_1(3))(1-F_2(4))

This will give you the probability of the expression.

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Shawna, Ryan, and Dominic ate a whole pizza. Shawna ate 1
mafiozo [28]

Answer:

\frac{1}{6}

Step-by-step explanation:

You need to add the amount Shawna & Ryan ate together, then subtract it from 1 to find the amount of pizza that was left for Dominic to eat.

\frac{1}{3} + \frac{1}{2} = ?

Make all the denominators the same to add fractions.

\frac{1}{3}  is \frac{2}{6}

\frac{1}{2}  is \frac{3}{6}

\frac{2}{6} +  \frac{3}{6} = \frac{5}{6}

1 -  \frac{5}{6} = \frac{1}{6}

4 0
2 years ago
What is 99.96 rounded to the nearest tenth​
nirvana33 [79]

Answer:

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3 0
3 years ago
Can anyone show how they solved this really need help
charle [14.2K]
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720-129-105-135-130-95=126

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6 0
3 years ago
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The student council set a goal of raising at least $500 in flower sales. So far it has raised $415.
zzz [600]
Hi There!

Ok, so student council needs 500 dollars from flower sale, and they already have 415, To find how much they need you have to subtract 500-415, your final answer should be 85, so the student council needs $85 dollars more to reach their goal.

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6 0
3 years ago
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22) 4x + 6y=-6<br> 4x – 4y=-16
olasank [31]

Answer:

4x + 6y = -6

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(-3,1)

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3 years ago
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