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Marizza181 [45]
3 years ago
8

BRAINLIEST AND 20 POINTS

Mathematics
2 answers:
jek_recluse [69]3 years ago
5 0
Sin x = cos (90 - x)

Its B
Mice21 [21]3 years ago
3 0
Taking a wild guess here but I think it is D... 

If wrong, let me know.
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Help please with question 5-8, show the solution
ludmilkaskok [199]

For each of these problems, remember SOH-CAH-TOA.

Sine = opposite/hypotenuse

Cosine = adjacent/hypotenuse

Tangent = opposite/adjacent

5) Here we are looking for the cosine of the 30 degree angle. Cosine uses the adjacent side to the angle over the hypotenuse. Therefore, cos(30) = 43/50.

6) We have an unknown side length, of which is adjacent to 22 degrees, and the length of the hypotenuse. Since we know the adjacent side and the hypotenuse, we should use Cosine. Therefore, our equation to find the missing side length is cos(22) = x / 15.

7) When finding an angle, we always use the inverse of the trigonometry function we originally used. Therefore, if sin(A) = 12/15, then the inverse of that would be sin^-1 (12/15) = A.

8) We are again using an inverse trigonometry function here. We know the hypotenuse, as well as the side adjacent to the angle. Therefore, we should use the inverse cosine function. Using the inverse cosine function gives us cos^-1 (9/13) = 46 degrees.

Hope this helps!

8 0
3 years ago
Equation with angles can someone please answer helpppp
Elden [556K]

Answer:

x = 18°\\\angle A = 73°

Step-by-step explanation:

By interior angle property on one side of the transversal.

\angle A+ \angle B = 180°\\6x - 35° + 3x + 53°  = 180°\\9x + 18° = 180°\\9x = 180° - 18°\\9x = 162°\\x = \frac{162°}{9}\\ \huge \red {\boxed {x = 18°}} \\\therefore \angle A = 6x - 35°\\\therefore \angle A = 6\times 18°- 35°\\\therefore \angle A = 108°- 35°\\ \huge \purple {\boxed{\therefore \angle A = 73°}} \\

3 0
3 years ago
Find the earnings rounded to the nearest cent <br>sales: $984 <br>commission: 10%​
Scilla [17]

Answer:

$1082

Step-by-step explanation:

10% of $984

10/100 ($984)= $98.4

Earnings = ($98.4+$984)

Earnings = $1082.4

Earnings = $1082 (to the nearest cent)

6 0
3 years ago
Do you know how to bake a muffan
soldier1979 [14.2K]

Answer:

yea by using a resipe

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
can anybody help me with this problem 11/6 and 3 1/3 and i need to figure out if one is greater than or less than or equal to th
Anestetic [448]
11/6 is less than. 6 only goes into 11 once,, so it'd be 11/6
3 0
3 years ago
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