50?
I'm assuming 50 because the angles to a triangle always adds up to 180 and this one has 130 and 130+50=180
The answer is 3 ft
The surface area (SA) of a cylinder with radius r and height h is:
SA = 2πr² + 2πrh = π(2r² + 2rh)
We have:
SA = 126π ft²
h = 3 * d
d = 2r
h = 3 * 2r = 6r
126π = π(2r² + 2rh)
126 = 2r² + 2rh
126 = 2r² + 2r * 6r
126 = 2r² + 12r²
126 = 14r²
r² = 126/14
r² = 9
r = √9
r = 3
Answer:
She will save $5.25
Step-by-step explanation:
21 x 25% = 5.25
Answer:
Step-by-step explanation:
times in the y+9 and y+7 and get y squared + 16x+ 63+80.
(a) 8.64 hours (b) 5.68 hours (c) .74 hours (44.4 minutes)
