4y=8x
Isolate y by dividing both sides by 4
Y=2x
Sub every y with 2x
Answer is A
Answer:
Step-by-step explanation:
yes.
x/y is a rational number
because xxby y is irrational that why x/y is rational number
$3/pound. $12 divided by 4 pounds is $3 per pound.
Answer:
3.
A = 11
B = -4
C = 7
D = 27
Step-by-step explanation:
Answer:
12π in³
Step-by-step explanation:
The right triangle formed by the radius (r), height (x), and slant height (y) is a 3-4-5 right triangle, with the dimension 4 inches being the perpendicular height from the base to the apex. That is, the Pythagorean theorem tells us ...
r² + x² = y²
x = √(y² -r²) = √(25 -9) = 4 . . . inches
The formula for the volume of a cone is ...
V = (1/3)πr²h . . . . . . . . h is the height, what you call x
Your cone has r = 3 in, h = 4 in. Filling in these numbers and simplifying, we get ...
V = (1/3)π(3 in)²(4 in) = 12π in³
The volume of the cone is 12π cubic inches.
