Answer:
A.
Step-by-step explanation: I read the directions.
We are given the a right triangle and the interior angles of the triangle. We use some trigonometric functions to solve the length of the remaining legs. We calculate as follows:
let a and b the length of the legs
cos 30 = a / 22
a = 19.05 cm
sin 30 = b / 22
b = 11 cm
Hope this answers the question. Have a nice day.
Each sandbox will need 4,200 lbs of sand. 42,000/10=4,200
Answer:
24 mph for both 60 miles and 40 miles.
Step-by-step explanation:
We need to find how long it takes to get to college and from it.
Speed x time (x) = Distance (60)
30x = 60
x=2
It takes two hours to get to college
20x = 60
x = 3
It takes 3 hours to get back. It's a total of 5 hours, 2 hours at 30mph and 3 at 20. Now we need to find the average
30+30+20+20+20=120
120/5= 24
The average speed for the round trip is 24.
To do the second part, we follow the same process, but replace 60 with 40 for distance.
30x=40
x= 1.33
20x=40
x=2
We can add the total distance and divide by total time to find the average.
The total distance is 80. Time is 3.33
80/3.33=24
The average speed is still 24.
Answer:
c.) 16in
Step-by-step explanation:
40/5 = 8
8 x 2 = 16
