Answer:
A
Step-by-step explanation:
You divide the diameter by 2 to get radius. So 5÷2=2.5
So then you multiply 2.5 by pi aka 3.14 so 2.5x3.14=7.85 So we rounds 7.85 to 7.9
Y•x
Explanation: The amount of gallons (y) multiplied by the amount of time (x) shows the relationship of how many minutes (x) it takes to fill the pool in gallons(y).
Answer:
X=4 6 x 4=24. so when y turns 16, what time four gets 16? 4x4=16
Step-by-step explanation:
hope this helps
Answer:
16 ft³
Step-by-step explanation:
Volume of 1 cube = 1/3 x 1/3 x 1/3 = 1/27 ft³
Volume of 432 cubes = 432 x 1/27 = 16 ft³
Answer:
Let AB be the flagstaff and CD be the vertical tower.
AB=10m=EC
BC=20m=AE
In triangle ABC we have,
tanx=AB/BC
tanx=10/20
1/tanx=20/10
10/tanx=20...........1
In triangle ADE we have
tan(90-x)=DE/AE
cotx=DE/20
1/cotx=20/DE
DE/cotx=20..............2
by eq1 and. eq 2 we get
10/tanx=DE/cotx
10/(AB/BC)=DE/(BC/AB)
10/(10/20)=DE/(20/10)
10×20/10=DE×10/20
DE=40m
Therefore height of vertical tower = DE+EC=40+10=50m
