I'm guessing we have
S1 = 1000
S2 = 1000 + 500
S3 = 1000 + 500 + 250
S4 = 1000 + 500 + 250 + 125
S5 = 1000 + 500 + 250 + 125 + 62.5
Just adding that up, S5 is
Answer: 1937.5
Do they want you to use the geometric series formula? We'll check it that way.
We have first term a=1000 and common ratio r=1/2. In general
For us that's
S5 = (1000 (1 - (1/2)^5))/(1 - 1/2) = 2000(1 - 1/32)
= 2000(31)/32 = 62000/32 = 1937.5 √
Math works!
Answer:
Step-by-step explanation:
a1=2
r=4
n=8
Answer:
Step-by-step explanation:
Cylinder of radius r and height h:
Lateral area = 2πrh
Area of end face = πr²
Surface area = 2πrh + 2πr²
Volume = πr²h
Cone of base radius r and height h:
Slant height L = √(r²+h²)
Lateral area = πrL
Base area = πr²
Surface area = πrL + πr²
Volume = πr²h/3
Answer:
Jay's estimate is closer to the actual weight of the basketball
Step-by-step explanation:
The standard weight of an NBA basketball is 1.4 pounds.
Judging the accuracy of Jay's and Shawna's answer based on their percentage error when compared with the standard, we have that Jay's answer has a lower error as shown below
Error = (Standard value - Estimated value)/ Standard Value ×100
Error in Jays answer = × 100 = 64.28 %
Error in Shawna's answer = × 100 = 96.42%
From this, It is obvious that Jay's answer has a lower percentage error when compared to the actual value.
Answer:
6 - 5i
Step-by-step explanation:
( 9 + root( - 1)) - ( 3 + root(-36)) : equation
9 + i - 3 - 6i : simplify
6 - 5i : answer