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trapecia [35]
4 years ago
5

Is sqrt(1 - sin^2 θ) = cos θ true? if so, in which quadrants does angle θ terminate?​

Mathematics
1 answer:
jonny [76]4 years ago
7 0

Answer:

  I and IV

Step-by-step explanation:

Since 1-sin(θ)² = cos(θ)², the given equation is equivalent to ...

  √(cos(θ)²) = |cos(θ)| = cos(θ)

This will be true where the cosine is non-negative, in the first and fourth quadrants.

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If b=p+5 and a=p^2+10p+1 find an expression that equals 2b+3a in standard form
olya-2409 [2.1K]

Answer:

3p² + 32p + 13

Step-by-step explanation:

Okay, so lets first solve for 2b. 2b = 2(p + 5), which is equal to 2p + 10. Now, let's solve for 3a. 3a = 3(p² + 10p +1), simplifying to 3p² + 30p +3. After adding 2b and 3a, we are able to get 2p + 10 + 3p² + 30p + 3 = 3p² + 32p + 13

8 0
2 years ago
Help please! I need this question answered!
Pavel [41]

Answer:

1)  f(g(-2))=-3,      2) g(f(0))=5

Step-by-step explanation:

1)f(g(-2))

First, g(-2) means that x=-2. Hence, you must find the value of g(x) in the table when x=-2. You can see that, when x=-2, g(-2) = -3.

Next, you must find f(-3) in the graph, where x=-3. You can see in the graph that, when x=-3, f(-3) = -2.

Therefore, f(g(-2))=-3

2) g(f(0))

In the case, we must apply the inverse procedure. First, check in the graph that, when x=0, f(0) =1.

Next, we must look at the table and see that, when x=1, g(1)=5. Hence,

g(f(0))=5

5 0
3 years ago
Easy, need help, thanks.
TEA [102]

Answer:

<em>A. 35 deg</em>

Step-by-step explanation:

The triangles are congruent bu HL.

m<RCD = m<PCD = 35 deg

5 0
3 years ago
Read 2 more answers
. Jerry buys a $2,700 motorcycle on a deferred payment plan. there is no down payment and no interest foreighteen months. jerry
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The answer to your question is seen below.

<span>To avoid paying  the </span>retroactive APR of 21% he will pay if cannot pay on time, Jerry’s last month payment must be $ 1,425.

Hope my answer would be a great help for you.

<span> </span>

5 0
4 years ago
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Points (-1,2), (-4,7), (-3,1), (-2,4) lie in ______ quadrant
dalvyx [7]

Answer:

they lie in 2nd quadrant

hope it helps

5 0
3 years ago
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