Answer:
253.5 ft³
Step-by-step explanation:
Volume of a pyramid = 
× base area × height
Volume of a prism = base area × height
Volume of the pyramid
= × (6×6.5÷2) × 9
= × 19.5 × 9
= 58.5 ft³
Volume of the prism
= (6×6.5÷2) × 10
= 195 ft³
Volume of the solid
= 58.5 + 195
= 253.5 ft³
I do not understand could you make the equation more clearer??
Answer:
(a) After t years, the height is
18t² + 3t + 10
(b) The shrubs are847 cm tall when they are sold.
Step-by-step explanation:
Given growth rate
dh/dt = 1.8t + 3
dh = (18t + 3)dt
Integrating this, we have
h = 18t² + 3t + C
When t = 0, h = 10cm
Then
10 = C
So
(a) h = 18t² + 3t + 10
(b) Because they are sold after every 9 years, then at t = 9
h = 18(9)² + 3(9) + 10
= 810 + 27 + 10
= 847 cm
Answer:
x=144
Step by step:
150% • x = 216
216•100/150
x=144
$768,
She had to pay $64 a month and there are 12 months in a year. So 64 x 12= 768
