Everything else besides Harry seeing his parents is the opportunity cost because those things are what he gave up to go see his parents
Get rid of cos2x by dividing both the values. So Sin2x/cos2x +3cos2x/cos2x.
Tan2x = 3
2x = -71.5 so x is -35.6
Use the quadrant method and add 360 twho the two values tou get.
Answer:
The length is 14 m.
Step-by-step explanation:
length = L
width = W
perimeter = P
"The perimeter of a rectangle is twice the sum of its length and its width."
P = 2(L + W)
"The perimeter is 40 meters"
40 = 2(L + W)
"and its length is 2 meters more than twice its width."
L = 2W + 2
Replace L with 2W + 2 in equation 40 = 2(L + W):
40 = 2(2W + 2 + W)
40 = 2(3W + 2)
20 = 3W + 2
3W = 18
W = 6
The width is 6 meters.
L = 2W + 2 = 2(6 m) + 2 m = 12 m + 2 m = 14 m
Answer: The length is 14 m.
We may apply a mass balance to determine the amount of water that must be added. The concentration in each of the solutions:
Saline solution: 18%
Pure water: 0%
Final solution: 10%
The volume of each solution is:
Saline solution: 16 oz
Pure water: w
Final solution: 16 + w oz
The moles of a substance are equal to the product of the concentration and volume. Therefore:
16*0.18 + w*0 = (16 + w)*0.1
w = 12.8 ounces
The volume of distilled water that must be added is 12.8 ounces.
Answer: 349.5 miles
<u>Step-by-step explanation:</u>
Use the formula distance (d) = rate (r) x time (t):
Since there are two different rates and times so solve each one separately and then add them together.
