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Molodets [167]
3 years ago
11

If the terminal point of ø is (-1,0), what is tan ø?

Mathematics
2 answers:
Inga [223]3 years ago
8 0
It is 0 because y (sin) divided by x(cos) is 0
umka2103 [35]3 years ago
5 0

Answer:

B

Step-by-step explanation:

I just took the quiz

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Need help with A and C <br><br>please :)
Dennis_Churaev [7]

First step: name the sides according to geometry standards, namely, the sides are named the same lowercase letter as the opposing angle. A revised diagram is shown.

Second step: we need to know the relationships of the trigonometric functions.

cosine(A)=cos(63) = adjacent / hypotenuse = AC/AB .................(1)

sine(A)=sin(63) = opposite / hypotenuse = CB/AB .......................(2)

We're given AB=7, so

using (1)

AC/AB=cos(63)

AC=ABcos(63)=7 cos(63) = 7*0.45399 = 3.17993 = 3.180 (to three dec. figures)

Using (2)

BC/AB=sin(63)

BC=ABsin(63) = 7 sin(63) = 7*0.89101 = 6.237 (to three dec. figures).


3 0
3 years ago
the mgf of a random variable x is e^3(e^t-1). Find P[mean - standard deviation squared &lt; X &lt; 1/2( mean + standard deviatio
postnew [5]
The given MGF is that for a random variable following a Poisson distribution with parameter \lambda=3.

This means \mathbb E(X)=\mathbb V(X)=\lambda, and X has PMF

f_X(x)=\begin{cases}\dfrac{3^xe^{-3}}{x!}&\text{for }x\ge0\\0&\text{otherwise}\end{cases}

So, the desired probability is

\mathbb P\left(\lambda-\lambda^2

This is equivalent to

\displaystyle\sum_{x=0}^2\mathbb P(X=x)=\sum_{x=0}^2\frac{3^x}{x!e^3}=\frac{17}{2e^3}\approx0.4232
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3 years ago
The yearbook club is having a bake sale to raise money for the senior class. Large cupcakes are sold for $1.25 each and small cu
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The answer is   c. 62     
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6)2.1 + 18:9<br> What is the answer and the explanation
Lapatulllka [165]
2.1+18.9

The answer is going to be 21 because 9+1=10, you then carry the 1 for 8 so it’s going to be 9+2 which equals to 11 now you carry the 1 to the 1 so it’ll be 2. Therefore it’s 21.0 or just cancel out the 0 and just leave it as 21.
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2 years ago
The cost of admission for a student is $4 less than the cost of admission for an adult.
mash [69]
A. x-4; x representing the cost of admission for adults.
b. $3.50
c. $6
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3 years ago
Read 2 more answers
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