72 minutes. First convert the height of the pool to inches by multiplying the height in feet by 12 which equals 36. Next multiply that by 2 because the pool is draining at -1/2 inches per minute, not -1 inch per minute.

5 0

3 years ago

If I=square root-1 then i^2=

MrRissso [65]

Answer:

i^−3 = i

i^−2 = −1

i^−1 = −i

i^0 = 1

i^1 = i

i^2 = −1

i^3 = −i

i^4 = 1

i^5 = i

i^ 6 = −1

See the pattern

7 0

3 years ago

Cora has some ice cream that she is serving for her friend , if Cora gives1/6 of a quart of ice cream to earth of her 8 friends,

zalisa [80]

Answer:

$\frac{4}{3} quarts$ of ice cream

Step-by-step explanation:

Given

Number of friends = 8

Size of ice cream = 1/6 quarts

Required

Total ice cream served

Let n represent the number of friends, s represent the size of ice cream and t represents total ice cream served;

t is calculated as thus;

$t = n * s$

$t = 8 * \frac{1}{6} quarts$

$t = \frac{8}{6} quarts$

Divide numerator and denominator by 2

$t = \frac{4}{3} quarts$

Hence, she serves $\frac{4}{3} quarts$ in total

8 0

4 years ago

The longest diagonal

Ratling [72]

The diagonals are:
diagonal₁=2x+3y
diagonal₂=(x+8)+(2y+5)
We have to solve the following system of equations:
2x=3y
(x+8)=(2y+5)
We solve this system by substitution method:
2x=3y ⇒x=3y/2

(3y/2 +8)=2y+5
3y+16=4y+10
-y=-6
y=6

x=3y/2=3*6/2=9

we obtain the measure of the diagonals:
diagonal₁=2x+3y=2*9+3*6=18+18=36
diagonal₂=(x+8)+(2y+5)=(9+8)+(2*6+5)=17+17=34

Answer: The longest diagonal is 36 units.

8 0

3 years ago