Get rid of cos2x by dividing both the values. So Sin2x/cos2x +3cos2x/cos2x.
Tan2x = 3
2x = -71.5 so x is -35.6
Use the quadrant method and add 360 twho the two values tou get.
(X * 6) + 9 = 8
6x + 9 = 8
6x + 9(-9) = 8(-9)
6x = -1
6x/6 = -1/6
x = -1/6
Answer:
∠S = 45°
Step-by-step explanation:
As given in the question, ∠R = 3x ; ∠S=2x ; ∠T=3x
So by using angle sum property of a triangle that sum of all the angles of a triangle is 180°.
We get, ∠R+∠S+∠T = 180
So, ∠S=2x
∠S=
∠S=45°
The probability that the card you pick from a standard 52-card deck is 7/13.
Let's first solve how many cards out of the 52 are red.
Since half the deck is red and the other half is black, 1/2 of 52 is <u>26</u> cards.
Next, let's solve how many cards you can choose with seven on it.
Since there are four of each kind of card in a standard deck of cards, there are four sevens. However, we already counted the two red sevens when we solved how many red cards there are. So 4-2 = <u>2</u> cards.
26 + 2 = 28 cards
28/52 = 7/13.
