5 is our starting amount. 40 divided by 20 equals 2. This means that you started with 5 and have 2 left , 5-2=3 :) you used 3 twenties hope this helped you out
Answer:
2) 10.01 year
Step-by-step explanation:
1) already answered elsewhere in your posts
2) 9000 = 6500 e^(.0325 * t) where t = years
9000/6500 = e^(.0325*t) take ln (natural log) of both sides
.3254224 = .0325t
t = 10.01 10.01 year
Answer:
It's hard to make out which is x and y, if x is lower right and y is at the top, then:
x = 55°
y = 70°
Step-by-step explanation:
x = 55° because it is an isosceles triangle
y = 180° - 55° - 55° = 70°
Linear graphs are represented with a straight line. Nonlinear graphs have curved lines.
Answer: 1
Step-by-step explanation:
The formula for calculating the sum of a Geometric series if the common ratio is greater than 1 is given as :
=
Where is the sum of terms , a is the first term , r is the common ratio and n is the number of terms.
From the question:
= 3280
a = ?
r = 3
n = 8
Substituting this into the formula , we have
3280 =
3280 =
Multiply through by 2 , we have
6560 = a ( 6560)
divide through by 6560, we have
6560/6560 = a(6560)/6560
Therefore : a = 1
The first term of the series is thus 1