Answer:
1/2
Step-by-step explanation:
Given:
sinx=-1/2
cosy=√3/2
finding x
x=sin^-1(-1/2)
x=-π/6
x=-30°
finding y
cosy=√3/2
y=cos^-1(√3/2)
y=π/6
y=30°
Now finding cos(x-y)
cos(-π/6-π/6)
=cos(-π/3)
=1/2!
Answer: A. t - 2d = -240 t - d = 320
Step-by-step explanation:
Let t be the price of a lawn mower at Turf Cutters and d be the price of the same lawn mower at Lawn Masters.
As per given , we have
The price, t, of a lawn mower at Turf Cutters is $240 less than twice the price, d, of the same lawn mower at Lawn Masters.
The difference in price between the mower at Turf Cutters and Lawn Masters is $320.
So, the system of equations can be used to determine the price of the mower at each store is
Hence, the correct option is "A."
Well she cant have even amounts of beads so she must either have 12.5 beads or 13 reds and 12 blues or vise versa depending on if half beads are aloud
Answer:
Step-by-step explanation:
Z -2.02
x 10
µ 22.5
σ 6.2