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Tasya [4]
2 years ago
12

If r is an integer greater than 1, what is the value of (-1)^r+1 if: r is an even integer

Mathematics
2 answers:
melisa1 [442]2 years ago
8 0
Answer: I know the answer but......

Explanation: Study hard so you can answer those questions
Brums [2.3K]2 years ago
7 0

Answer:

2

Step-by-step explanation:

Any negative to an even power is even. 1+1=2

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Which equation would you use to solve the problem," Four less than the product of 3 and a number is 15"
geniusboy [140]
The answer is a. 3n - 4 = 15
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You have 1 pounds of egg whites you need 8oz to make one serving of consomme how many servings can you make
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Considering that 1 lbs =16 ounces and you need one serving (8oz) then you will make two servings so the answer is two servings hope this helps and have a nice day (:
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What type of line would the equation<br> y &lt; 7x + 8 have?<br> A dashed line or<br> A solid line?
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Answer:

A dashed line

Step-by-step explanation:

Because it is just a less than sign but if it was a less than or equal to it would be a solid line.

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3 years ago
(66 x 10) - (9.9 x 104)
Sidana [21]

66x10=660

9.9x104=1029.6

660-1029.6=-369.6

3 0
3 years ago
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On Texas Avenue between University Drive and George Bush Drive, accidents occur according to a Poisson process at a rate of thre
Zarrin [17]

Answer:

(a) The probability is 0.6514

(b) The probability is 0.7769

Step-by-step explanation:

If the number of accidents occur according to a poisson process, the probability that x accidents occurs on a given day is:

P(x)=\frac{e^{-at}*(at)^{x} }{x!}

Where a is the mean number of accidents per day and t is the number of days.

So, for part (a), a is equal to 3/7 and t is equal to 1 day, because there is a rate of 3 accidents every 7 days.

Then, the probability that a given day has no accidents is calculated as:

P(x)=\frac{e^{-3/7}*(3/7)^{x}}{x!}

P(0)=\frac{e^{-3/7}*(3/7)^{0}}{0!}=0.6514

On the other hand the probability that February has at least one accident with a personal injury is calculated as:

P(x≥1)=1 - P(0)

Where P(0) is calculated as:

P(x)=\frac{e^{-at}*(at)^{x} }{x!}

Where a is equivalent to (3/7)(1/8) because that is the mean number of accidents with personal injury per day, and t is equal to 28 because 4 weeks has 28 days, so:

P(x)=\frac{e^{-(3/7)(1/8)(28)}*((3/7)(1/8)(28))^{x}}{x!}

P(0)=\frac{e^{-(3/7)(1/8)(28)}*((3/7)(1/8)(28))^{0}}{0!}=0.2231

Finally, P(x≥1) is:

P(x≥1) = 1 - 0.2231 = 0.7769

3 0
3 years ago
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