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morpeh [17]
3 years ago
14

1. 350 is 70% of what number?

Mathematics
2 answers:
klio [65]3 years ago
5 0

Answer:

1. A 500

2. D 37.5

3. B 40%

4.C 28

Step-by-step explanation:


Brums [2.3K]3 years ago
4 0
1. a
2. d
3.b
4.c

msg me if u need explanations
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You are buying tickets to a school event. You may purchase at most 8 tickets to receive a discount. Write an inequality to expre
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8 is greater than or equal to x
(where x = the number of tickets)

or x is less than or equal to 8

3 0
3 years ago
Need answers asap plz with work included (20 points)
svetoff [14.1K]

I think it would be B i hope this helps

3 0
3 years ago
1Y, the number of accidents per year at a given intersection, is assumed to have a Poisson distribution. Over the past few years
miss Akunina [59]

Answer:

The probability that the intersection will come under the emergency program is 0.1587.

Step-by-step explanation:

Lets divide the problem in months rather than in years, because it is more suitable to divide the period to make a better approximation. If there were 36 accidents in average per year, then there should be 3 accidents per month in average. We can give for the amount of accidents each month a Possion distribution with mean 3 and variance 3.

Since we want to observe what happen in a period of one year, we will use a sample of 12 months and we will take its mean. We need, in average, more than 45/12 = 3.75 accidents per month to confirm that the intersection will come under the emergency program.

For the central Limit theorem, the sample mean will have a distribution Normal with mean 3 and variance 3/12 = 0.25; thus its standard deviation is √0.25 = 1/2.

Lets call the sample mean distribution X. We can standarize X obtaining a standard Normal random variable W with distribution N(0,1).

W = \frac{X-\mu}{\sigma} = \frac{X-3}{1/2} = 2x-6

The values of \phi , the cummulative distribution function of W, can be found in the attached file. We are now ready to compute the probability of X being greater than 3.75, or equivalently, the probability than in a given year the amount of accidents is greater than 45, leading the intersection into an emergency program

P(X > 3.75) = P(2X-6 > 2*3.75-6) = P(W > 1) = 1-\phi(1) = 1-0.8413 \\= 0.1587

Download pdf
7 0
3 years ago
What is the actual slope of this line?
-BARSIC- [3]

Answer:

  -4

Step-by-step explanation:

The line has a "rise" between the two points of -4 units for a "run" of +1 unit. The slope is the ratio ...

  m = rise/run = -4/1 = -4.

The slope is -4.

_____

<em>Additional comment</em>

A "whole number" must be non-negative. Here, the slope is negative. If you're restricted to "a fraction or a whole number", then the appropriate answer is the fraction -4/1. We suspect that "integer" is meant where "whole number" is used.

5 0
3 years ago
John is buying a cake for his sister's birthday. He wants to get the most cake he can. One cake (A) is 9.5 inches wide, 13 inche
mart [117]
I think the answer is B i'm not sure though
5 0
3 years ago
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