Answer:
The answer to your question is Ф = 210°; sin 120 = -1/2
Step-by-step explanation:
Data
Ф = 7π/6
∠ = ?
sin Ф = ?
Process
1.- Convert radians to degrees using proportions and cross multiplication
π rad ------------------ 180°
7π/6 rad ---------------- x
x = (7π/6 x 180) / π rad
x = (7 x 180) / 6
x = 1260/6
x = 210°
2.- Find the sin of 210°
sin 210 = -1/2
Set up a system of equations:
x + y = 6
8x + 10y = 52
Where 'x' is the number of $8 videos and 'y' is the number of $10 videos.
x + y = 6
Subtract 'x' to both sides:
y = -x + 6
Plug in '-x + 6' for 'y' in the 2nd equation:
8x + 10y = 52
8x + 10(-x + 6) = 52
Distribute 10 into the parenthesis:
8x - 10x + 60 = 52
Combine like terms:
-2x + 60 = 52
Subtract 60 to both sides:
-2x = -8
Divide -2 to both sides:
x = 4
So you bought four $8 videos.
Answer:
Answer: 10240
Step-by-step explanation:
640 x 16 = 10240
1 Pound = 16 Ounces
The answer is 31. 5 goes into 15 3 times and 5 goes into 5 1 time so its 31
Answer:
So 205
Step-by-step explanation:
First we have to divide 143.50 by 7 to find the amount she makes per lawn then muliply it by 10
143.50 / 7 =20.5
20.5*10=205
