Cos²(15°) - sin²(15°) = cos(15° * 2) = √(3/2 so this is the answer by using apropriate formula double angle identity
15.Dylan has 400 more
17. 426 divided by 10= 42.6
To convert ANY percent to a decimal we need to divide the percent by 100. Lets do it:-
60%
60 ÷ 100 = 0.60
60% written as a decimal is 0.60.
CHECK OUR WORK:-
0.60 × 100 = 60
We are RIGHT!!!
So, 60% written as a decimal is 0.60 (0.6).
Hope I helped ya!! xD
The domain is -1,0,1,2. The range is 3,5,7,9.
Answer:
y = 15x
Step-by-step explanation:
Given x and y are in direct variation then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition x = 2, y = 30, then
30 = 2k ( divide both sides by 2 )
15 = k
y = 15x ← equation of variation
