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3 years ago

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Hillary wants to go on a latin club trip to Italy it will cost $2730 for the trip the trip is 30 weeks away and she wants to mak

e equal payments how much money altogether does Hillary need to pay at the end of

1 answer:

scoray [572]3 years ago

3 0

If you mean equal payments each week like 30x = 2730 then it would be $91 per week for the 30 weeks to pay it

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Urgent, please i will give brainliest

Ne4ueva [31]

Answer:

1. $\frac{\sqrt{13} }{3}$

2. 3.2362

3. $\frac{60}{11}$

Step-by-step explanation:

1.

Cot is the trigonometric ratio defined by "adjacent" over "opposite". <em>So, adjacent = 2 and opposite = 3.</em>

By pythagorean theorem, we have the "hypotenuse" as $\sqrt{2^2+3^2}=\sqrt{13}$

Csc is defined as the trig ratio "hypotenuse" over "opposite". <em>We know the sides, so Csc $\theta$ = $\frac{\sqrt{13} }{3}$ </em>

<em />

<em>First answer choice is right.</em>

<em />

2.

By definition, Csc $\theta$ is the inverse of Sine $\theta$ . <em>If given the value of sin theta, to find value of csc theta, we take the reciprocal of it. Hence:</em>

$Csc\theta=\frac{1}{0.3090}\\=3.2362$

Third answer choice is right.

3.

By definition tan and cot are inverse of each other. <em>So the value of tan is the reciprocal of the value of cot.</em> We can simply "flip" the value of tan theta to get the value of cot theta. Hence:

$Cot\theta=\frac{60}{11}$

Third answer is right.

3 0

3 years ago

Read 2 more answers

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

2 years ago

5x+7+5= solve for x ..

Juliette [100K]

Answer:

x= y/5 − 12/5

Step-by-step explanation:

Can I have brainliest?

4 0

2 years ago

Help!! I have no clue

VikaD [51]

okay so you just plug in the x and ys. x is the first number, y is the second. then you just do them all out

3 0

3 years ago

Read 2 more answers

Help me with this and answer letters a and b

Darya [45]

Answer:

Step-by-step explanation:

a) a = 2*2.99- (2.99 +1.49)

a = 5.98 - 4.48

a = $1.50

r = 2* 3.99 - (3.99 + 2.49)

r = 7.98 - 6.48

r = $ 1.50

B) Both fruits has the same discount.

4 0

3 years ago