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elena55 [62]
3 years ago
9

Precalculus PLEASE HELP Math

Mathematics
1 answer:
Blababa [14]3 years ago
7 0

Answer:

Step-by-step explanation:

tan 17=h/18

h=18 tan 17

tan 38=(h+x)/18

h+x=18 tan 38

h+x-h=18 tan 38-18 tan 17

x=18(tan 38-tan 17)≈8.56

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Find the value of b. Round <br> the nearest tenth.
maria [59]

Answer:

b= sin(43°) * 8 / sin(55°) ≈ 6.7

Step-by-step explanation:

Regarding the law of sines, each angle corresponds to the side opposite of it. Here, that means that the 82 degree angle is opposite of side c (so they correspond) and that the 55 degree angle corresponds to the side with 8cm. However, we are trying to find the length of side b. Therefore, assuming that the side with 8cm is side A, if we know that

sin A / a = sinB/b = sin C / C

= sin(55°)/8 = sinB/b = sin(82°) / c, we can take c out of the equation to get

sin(55°)/8 = sinB/b

If we know sinB, we can multiply both sides by 8 to remove a denominator to get

sin(55°) * b / 8 = sinB

multiply both sides by 8 to remove the other denominator to get

sin(55°) * b = sinB * 8

divide both sides by sin(55°) to isolate the b

b = sinB * 8/sin(55°).

Therefore, if we know sinB, we can figure out the length of b.

Because the angles of a triangle add up to 180 degrees, we can say that

180 = 82 + 55 + angle B

180 = 137 + B

subtract both sides by 137 to isolate B

43 = B

b= sin(43°) * 8 / sin(55°) ≈ 6.7

3 0
3 years ago
#11! Plzzz help Algebra 2 Honors :))))
dmitriy555 [2]

A vertical asymptote simply means that the function is undefined at a certain point. We are given that it occurs at x=25. Notice that x is in the denominator and if the denominator equals 0, the entire function is undefined. <em>a</em> and <em>k</em> are simply constants, and so they can take on any value. This is one of infinite solutions to this question:

f(x) = \frac{\pi}{x-25} + e^6

Notice that when you plug in x=25, the denominator is 0 and the function is undefined making it a vertical asymptote.

Hope I could help!

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Answer:

c. Fairly weak

Step-by-step explanation:

From the given question:

We can deduce that the correlation between those two criteria is fairly weak. This is because the first set of students who initially answered the question started second-guessing themselves, making them unsure about their decision when picking the right answers. They eventually ended up choosing the wrong answers when changing it.

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Jessica is filling glasses with water. Each glass holds 3/5 cup of water. She pours 4 1/5 cups of water into the glasses. How ma
xeze [42]
4 1/5 divided by 3/5 = 7 
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3 years ago
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The answer is D. SF is .4
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