Answer:
C
Step-by-step explanation:
the area (A) of a triangle is calculated as
A = 
bh ( b is the base and h the perpendicular height )
here b = z and h = w , then
A = zw
<span>work out the difference (increase) between the two numbers you are comparing.Increase = New Number - Original Number.Then: divide the increase by the original number and multiply the answer by 100.% increase = Increase ÷ Original Number × 100.</span>
Answer:
38.46
Step-by-step explanation:
Answer:
<u>Sum of n terms of a GP:</u>
#1
- a₁ = 5
- r = 2
- n = 9
- S₉ = 5(2⁹ - 1)/(2 - 1) = 5(511) = 2555
Correct choice is C
-----------------------------
#2
- a₁ = 12
- r = 1/2
- n = 5
- S₅ = 12(1 - (1/2)⁵)/(1 - 1/2) = 12(31/32)/(1/2) = 23.25
Correct choice is A
