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nalin [4]
3 years ago
13

May I have some help?

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
8 0
For whatcha problem hun
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David is planning to attend a public university after he graduates from high school in 3 years. He is devising a plan to save mo
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Answer:

b. 600

Step-by-step explanation:

subtract money from parents from tuition

divide by months

7 0
3 years ago
HELP NEEDED QUICK<br><br> Find the measure of the missing angles.<br> 103°<br> f<br> е<br> d =
Reika [66]

Answer:

77 degrees and 90 degrees

The angle d is shown as 90 by the perfect right angle. The angle e has to equal 180 when added to f. So 180-103=77.

3 0
3 years ago
Assume that the Poisson distribution applies and that the mean number of hurricanes in a certain area is 6.9 per year. a. Find t
VLD [36.1K]

Answer:

a) 9.52% probability​ that, in a​ year, there will be 4 hurricanes.

b) 4.284 years are expected to have 4 ​hurricanes.

c) The value of 4 is very close to the expected value of 4.284, so the Poisson distribution works well here.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

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

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

6.9 per year.

This means that \mu = 6.9

a. Find the probability​ that, in a​ year, there will be 4 hurricanes.

This is P(X = 4).

So

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

P(X = 4) = \frac{e^{-6.9}*(6.9)^{4}}{(4)!}

P(X = 4) = 0.0952

9.52% probability​ that, in a​ year, there will be 4 hurricanes.

b. In a 45​-year ​period, how many years are expected to have 4 ​hurricanes?

For each year, the probability is 0.0952.

Multiplying by 45

45*0.0952 = 4.284.

4.284 years are expected to have 4 ​hurricanes.

c. How does the result from part​ (b) compare to a recent period of 45 years in which 4 years had 4 ​hurricanes? Does the Poisson distribution work well​ here?

The value of 4 is very close to the expected value of 4.284, so the Poisson distribution works well here.

5 0
3 years ago
A restaurant is located on a coordinate grid at (-6,-9). A store is located on the same coordinate grid at (10,3). If your house
Nitella [24]

Answer:

Step-by-step explanation:

Use the midpoint formula. So, your coordinates of your house would lie on the point (2,-3). (:

4 0
3 years ago
A picture measuring 2.5" high by 6" wide is to be enlarged so that the width is now 18 inches. How tall will the picture be?
viktelen [127]
We have that
the picture original is 2.5 in x 6 in
high=2.5 in
wide=6 in

the picture <span>enlarged  is
</span>high=2.5*x
wide=6*x-----> 6*x=18--------> x=18/6----------> x=3
x is the factor scale
so
high=2.5*x-----> 2.5*3----> 7.5 in

the answer is
7.5 in
8 0
3 years ago
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