Answer:
A) .05
B) 3.20
Step-by-step explanation:
1.45-1.40 = .05
13.25-10.05 = 3.20
If f(θ) = a cos(bθ), then from the first condition we find
f(0) = 3 ⇒ a cos(0) = 3 ⇒ a = 3
Together with the other conditions, it's evident that f(θ) has a period of π, so
2π/b = π ⇒ b = 2
so that
f(θ) = 3 cos(2θ)
Carrots to be peeled:: 60-18 = 48
Time to peel 48 carrots: 48/2 = 24 minutes
Hope this helps!
Answer:
Since we knew that the triangles are similar, we have:
19/38 = (x + 7)/(3x + 3)
=> 1/2 = (x + 7)/(3x + 3)
=> 3x + 3 = (x + 7) . 2
=> 3x + 3 = 2x + 14
=> 3x - 2x = 14 - 3
=> x = 11
length = 12x^2-30x
two width
=(30x^2-78x+12)-2(12x^2-30x)
=(30x^2-78x+12)-24x^2+30x
=6x^2-48x+12
one width
=(6x^2-48x+12)÷2
=3x^2-24x+6
