Answer:
3 pizza
Step-by-step explanation:
four people eat 3/4 of pizza
4*3/4=12/4=3 pizzas
Answer:
B
Step-by-step explanation:
Answer:
40
Step-by-step explanation:
12 is 30% of 40
30% x X = 12 or 30/100 x = 12
so if you multiply both sides by 100 and divide both sides by 30
we get X = 12 x 100/30
= 40
(BTW if you want to use a calculator just put 12×100÷30 which will give you the answer)
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Answer:
a) θ = 15° b) θ = 15°, 165°
Step-by-step explanation:
a) Given the equation 2 sin(2θ) = 1
sin(2θ) = 1/2
(2θ) = arcsin(1/2)
2θ = 30°
θ = 15°
b) To find all the solutions between 0 and 2π, we will make reference to the quadrant.
Sinθ is positive in the first and second quadrant.
In the first quadrant, θ = 15°
In the second quadrant, θ = 180°-15°
= 165°
The solutions between 0 and 2π are 15° and 165°
