Answer:
B. 54π units ²
Step-by-step explanation:
solution:
given,
Radius (r) = 3
(l) = 15
we know that,
T.S.A. of cone = πr( r + l )
= π × 3(3 + 15)
= π × 3 × 18
= π × 54
= 54π units ²
9 1/2 quarts is the same as 38 cups. So you would just subtract 38-7 to get 31. So 31 cups were drank.
Answer:
Luster describes the reflection of light off a mineral's surface. Mineralogists have special terms to describe luster. Minerals that are opaque and shiny, such as pyrite, have a metallic luster.
Step-by-step explanation:
Answer:
(f · g)(t - 1) = 4t² - 2t - 13
Step-by-step explanation:
First, find (f · g)(n). You can do this by multiplying f(n) by g(n).
f(n) = 2n - 2
g(n) = 2n + 5
(f · g)(n) = (2n - 2)(2n + 5)
(f · g)(n) = 4n² + 6n - 10
Now, plug (t - 1) into (f · g)(n) and simplify.
(f · g)(n) = 4n² + 6n - 10
(f · g)(t - 1) = 4(t - 1)² + 6(t - 1) - 10
(f · g)(t - 1) = 4(t² - 2t + 1) + 6(t - 1) - 10
(f · g)(t - 1) = 4t² - 8t + 4 + 6t - 1 - 10
(f · g)(t - 1) = 4t² - 8t + 4 + 6t - 1 - 10
(f · g)(t - 1) = 4t² - 2t + 4 - 1 - 10
(f · g)(t - 1) = 4t² - 2t - 13
