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Gnesinka [82]
3 years ago
14

Will award brainliest!

Mathematics
2 answers:
Grace [21]3 years ago
5 0
If the angle theta is in Q IV, then the adj. side is + and the opp side is - .  The hyp is always + .

If sin theta = -5,13, then we know that the opp side is -5, and the hyp is +13.
The adj. side is found as follows:  sqrt(13^2 - (-5)^2 ), which here is sqrt(169 - 25), or plus or minus 12.  As before, in Q IV the adj side is +, so choose +12.

Then sec theta = hyp / adj = 13/12 (answer)


Kryger [21]3 years ago
4 0
 the length of the  adjacent side will be 12 
so cos theta  will equal  12/13 

sec theta = 1 / cos theta will be 13/12 Answer

Its D
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Harrison Water Sports has two retail outlets: Seattle and Portland. The Seattle store does 60 percent of the total sales in a ye
Anna11 [10]

Answer: P = 0.75

Step-by-step explanation:

Hi!

The sample space of this problems is the set of all the possible sales. It is divided in the disjoint sets:

S_s = {\text{sales made in Seattle }}\\S_p={\text {sales made in Portland}}

We have also the set of sales of boat accesories S_b, the colored one in the image.

We are given the data:

P(S_s) = 0.6\\P(S_b | S_s) = \frac{P(S_b\bigcap S_s)}{P(S_s)}=0.4\\P(S_b|S_p) =\frac{P(S_b\bigcap S_p)}{P(S_p)}=0.2

From these relations you can compute the probabilities of the intersections colored in the image:

pink\;set:\;P(S_b \bigcap S_s) =0.6*0.4=0.24\\blue\;set\;:P(S_b \bigcap S_p)=(1-0.6)*0.2 =0.08

You are asked about the conditional probability:

P(S_s|S_b) = \frac{P(S_s \bigcap S_b)}{P(S_b)}

To calculate this, you need  P(S_b) . In the image you can see that the set S_b is the union of the two disjoint pink and blue sets. Then:

P(S_b)=P((S_b \bigcap S_s)\bigcup(S_b \bigcap S_p)) = 0.24 + 0.08 = 0.32

Finally:

P(S_s|S_b) = \frac{0.24}{0.32}=0.75

4 0
4 years ago
Which statement describes the end behavior of the exponential function f(x) = 2x – 3?
Shtirlitz [24]

The correct answer is a. for very high x-values, f(x) moves towards positive infinity.


This can always be determined by two factors.

1) is it linear or something else?

2) Is the lead coefficient positive or negative.


In this case, since the x is not being raised to a power or is not raised to a power itself, we know that there are no asymptotes. That takes care of #1 for us.


As for #2, since the coefficient of x (which is the highest power here) is positive, that means it continues to get bigger. If it were negative it would be the opposite. So, the correct answer is that as x gets bigger, f(x) moves towards positive infinity.

6 0
3 years ago
Twenty percent of what number is 5?
Semenov [28]

Answer:

A. 25

Step-by-step explanation:

25 split into 5 groups, 5 in each of them.

There are 5 20's in 100 (the total)

25 = 5 + 5 + 5 + 5 + 5

I hope the explanation makes sense!

7 0
3 years ago
What is 15 less than or equal to -5x​
lara [203]

Answer:

less than tell me if i'm wrong

4 0
3 years ago
6+x^2)^2. Please solve for me
goldfiish [28.3K]

Answer:

<h2>36 + x^4</h2>

Step-by-step explanation:

6^2 + x^2^2

36 + x^4

Hope that helps!

6 0
3 years ago
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