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AlladinOne [14]
4 years ago
15

Find the complement of an angle whose measure is 54 degrees.

Mathematics
2 answers:
Ugo [173]4 years ago
6 0
I hope this helps you



180-54=126
shepuryov [24]4 years ago
4 0
Complementary angles add up to 90 degrees.
So.... 90 - 54 = 36 degrees
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(Photo attached) Trig question. Please explain and thanks in advance! :)
nirvana33 [79]

Answer:

  0.2036

Step-by-step explanation:

u = arcsin(0.391) ≈ 23.016737°

tan(u/2) = tan(11.508368°)

tan(u/2) ≈ 0.2036

__

You can also use the trig identity ...

  tan(α/2) = sin(α)/(1+cos(α))

and you can find cos(u) as cos(arcsin(0.391)) ≈ 0.920391

or using the trig identity ...

  cos(α) = √(1 -sin²(α)) = √(1 -.152881) = √.847119

Then ...

  tan(u/2) = 0.391/(1 +√0.847119)

  tan(u/2) ≈ 0.2036

__

<em>Comment on the solution</em>

These problems are probably intended to have you think about and use the trig half-angle and double-angle formulas. Since you need a calculator anyway for the roots and the division, it makes a certain amount of sense to use it for inverse trig functions. Finding the angle and the appropriate function of it is a lot easier than messing with trig identities, IMO.

6 0
3 years ago
If f(x) = 7(x - 2) + 4(x + 1), what is f(2)?<br><br> A. 9 B. 10 C. 12 D. 11
KatRina [158]

Answer:

C) 12

Step-by-step explanation:

These type of questions is basically asking you to replace x with 2. f(x) is the same thing as y = but inside the f(x) is the value of x. So in this case, the numerical value of x is 2. All we need to do is replace x with it's numerical value, 2, and solve the equation.

y=7(2-2) + 4(2+1)\\y=7(0) + 4(3)\\y = 12

8 0
3 years ago
Read 2 more answers
Find angle spt. Show your work. <br><br>Hurry plssss!!!​
hammer [34]

Answer:

13 degrees

Step-by-step explanation:

Since both angles (QPR and SPT) are angle f, angle SPR is 154 degrees, and angle TPQ is 180 degrees, you can subtract 154 from 180 and get 26. Once you get 26 degrees, divide it by 2 and you will get 13. This should be the answer. Thanks!

6 0
3 years ago
How do you have all the answers to 9 divided by 248
kaheart [24]

Answer:

the answer to 248 divided by 9 is 27 remainder 5

Step-by-step explanation:

Step 1) Start by setting it up with the divisor 9 on the left side and the dividend 248 on the right side like this:

Step 2) The divisor (9) goes into the first digit of the dividend (2), 0 time(s). Therefore, put 0 on top:

Step 3) Multiply the divisor by the result in the previous step (9 x 0 = 0) and write that answer below the dividend.

Step 4) Subtract the result in the previous step from the first digit of the dividend (2 - 0 = 2) and write the answer below.

Step 5) Move down the 2nd digit of the dividend (4) like this:

Step 6) The divisor (9) goes into the bottom number (24), 2 time(s). Therefore, put 2 on top:

Step 7) Multiply the divisor by the result in the previous step (9 x 2 = 18) and write that answer at the bottom:

Step 8) Subtract the result in the previous step from the number written above it. (24 - 18 = 6) and write the answer at the bottom.

Step 9) Move down the last digit of the dividend (8) like this:

Step 10) The divisor (9) goes into the bottom number (68), 7 time(s). Therefore put 7 on top:

Step 11) Multiply the divisor by the result in the previous step (9 x 7 = 63) and write the answer at the bottom:

Step 12) Subtract the result in the previous step from the number written above it. (68 - 63 = 5) and write the answer at the bottom.

8 0
3 years ago
Pls answer quickly and right for 17 points
CaHeK987 [17]

Answer:

its 9 points liar

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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