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Nuetrik [128]
2 years ago
13

Can someone help me on this?

Mathematics
1 answer:
Mnenie [13.5K]2 years ago
5 0

Answer:

Step-by-step explanation:

We know that cosx = sin(\pi - x)

We can apply it here:

sin(55°) = cosx

cos(\pi - 55°) = cosx

Now we apply the arccos to both sides:

x = \pi - 55° + 2k\pi or x = -\pi - 55° + 2k\pi

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I need answers anyone help
GalinKa [24]
First one single solution second no solution 3rd one single forth one infinity and last 2 are single and infinity
7 0
3 years ago
2. Simplify. 7 + 8a – 2 + 9a
Alik [6]
5 + 17a is the answer you are looking for
8 0
3 years ago
Read 2 more answers
Brian scored one tenth of the points for his basketball team in the state championship game. Joe scored one fourth of the points
Airida [17]

x/10 + x/4 = 21  /*40

4x + 10x = 840

14x = 840

x = 60 = total number of points the team scored

8 0
3 years ago
Read 2 more answers
A ladder is leaning against a building.The distance from the bottom of the ladder to the building is 6ft shorter than the length
Akimi4 [234]

Answer:

15 ft

Step-by-step explanation:

Hi, the illustration for the problem is a right triangle with:

hypotenuse (C)= the length of the ladder = L

horizontal side(A) = distance from bottom of the ladder to the building = L - 6

vertical side(B) = distance from the top of the ladder to the bottom of the building = L - 3

So, we can use Pythagoras formula:

A2 +B2= C2

(L – 6 )² + (L-3)² = L²

L²-12L+36+L²-6L+9 =L²

L2 -18L+45 =0

APPLYING QUADRATIC FORMULA WE OBTAIN:

L =15 OR L=3

If L=3

Vertical side = L-3 = 0 (Length can´t be 0)

So L=15

6 0
3 years ago
Please help just looking for the answer
avanturin [10]

Answer: Correct Answer is 4th option , 28


Step-by-step explanation:


We can find the measure of the angle using the tangent.


We know, tangent of an angle = Perpendicular/Base, corresponding to that angle.


So, Tan of angle T = RG / RT

or, Tan of angle T = 8/15

or, angle T = tan inverese of 8/15

or, angle T = 28.07


So, angle T rounded to nearest degree = 28


Hope this helps.


Thank you.


3 0
3 years ago
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