Answer:
1564.
Step-by-step explanation:
First term = -28 and common difference = 15.
Sum = (17/2)(2*-28 + (17-1)15)
= 8.5 * 184
= 1564.
Answer:
see below
Step-by-step explanation:
Corresponding angles of similar triangles are equal and corresponding sides are proportional so:
m ∠P = m ∠D = 180° - (35° + 89°) = 56°
m ∠Q = m ∠F = 89°
m ∠ R = m ∠E = 35°
PR/DE =PQ/DF
40/DE = 20/24 cross multiply and solve for DE
DE = 40*24/20
DE = 48
scale factor is DF/PQ = 24/20 = 6/5 so FE = 6/5 *RQ =6/5 *36 = 43.2
Answer:
-14
Step-by-step explanation:
if n = 1.5, replace all letters labeled "n" with 1.5
5(1.5) - (20 +1.5)
5 x 1.5 = 7.5
(20+1.5) = 21.5
7.5 - 21.5 = -14
:)
He now has 105 because you add them up
Question 3 the volume is 270 (5x6x9=270)
