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3 years ago

7th grade HELP MEEEE! due today

Mathematics

2 answers:

Goshia [24]3 years ago

5 0

You got it on the correct spot good job and good luck hun

Arisa [49]3 years ago

4 0

Answer:

Step-by-step explanation: Because as you see the dot is past the 2 and is on the third line out of 4, the 4th line is the next number.

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The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.

NeX [460]

Answer:

0.674

Step-by-step explanation:

If the random variable X is exponentially distributed and X has an average value of 25 minutes, then its probability density function (PDF) is

$\bf f(x)=\frac{1}{25}e^{-x/25}\;(x\geq 0)$

and its cumulative distribution function (CDF) is

$\bf P(X\leq t)=\int_{0}^{t} f(x)dx=1-e^{-t/25}$

So, <em>the probability that X is less than 28 minutes is </em>

$\bf P(X\leq 28)=1-e^{-28/25}=1-e^{-1.12}=0.674$

8 0

3 years ago

Consider a political discussion group consisting of 5 Democrats, 8 Republicans, and 5 Independents. Suppose that two group mem

Levart [38]

Answer:

4/9 and 5/18

Step-by-step explanation:

Total: 5+8+5=18

the probability of selecting a Republican is 8/18=4/9

the probability of selecting a Democrat is 5/18

6 0

4 years ago

During one calendar year, a state trooper issued a total of 375 citations for warnings and speeding tickets. Of these, there wer

timama [110]

Answer:

169 Speeding Tickets, 206 Warnings.

Step-by-step explanation:

If there were 37 more warnings than tickets, then the first thing you want to do is remove that from the total by subtracting it: 375-37 = 338.

You then halve this to split them into tickets and warnings: 338/2 = 169.

Lastly, you add back the 37 more warnings, giving you 169 speeding tickets and 206 warnings.

6 0

3 years ago

Alberto has 92 stamps in one large album and 38 stamps in another small album. How can he use mental math to find how many more

tatyana61 [14]

Answer:

Step-by-step explanation:

92 - 38 = 54

90 - 36 = 54

5 0

3 years ago

Janet bought five shirts for s dollars each and 3 pairs of shoes for p dollars each.write an expression to show the total that j

valentina_108 [34]

5(x) • 3(m) = s
I think this is what you're looking fir

4 0

4 years ago