Answer:

Step-by-step explanation:
I assume that you need simplification of the given expression.
The given expression is:

Using distributive property and multiplying 2 inside the parenthesis and 1 inside the other parenthesis. This gives,

Therefore,
is equal to:

Now, combining like terms using the commutative property of addition, we get:

Therefore, the simplified form is 
Answer:
9.2
Step-by-step explanation:
The given triangle is a right angled triangle. To solve for any of the side length of such triangle, apply the trigonometry ratio formula which can easily be remembered as SOHCAHTOA.
SOH is Sin θ = opposite/hypothenuse,
CAH is Cos θ = Adjacent/hypotenuse
TOA is Tan θ = Opposite/adjacent
Thus, in the right triangle given, we have:
θ = 38°
Opposite side to the given angle = x
Hypotenuse = 15
We're going to use, sin θ = opposite/hypotenuse
Sin(38) = x/15
Multiply both sides by 15 to solve for x
15*sin(38) = x
15*0.616 = x
9.24 = x
<em>x ≈ 9.2 (to nearest tenth)</em>
Answer:
PQ = 23, QR = 17
Step-by-step explanation:
Answer:
Lol its 420
Step-by-step explanation: