Answer:
The answers to each question are:
a)
b)
c)
d)
Step-by-step explanation:
The function f(r) that represents the area of a circle (in square cm) is:
a) To represent the area (in square cm) of a circle whose radius is 4 cm, you just have to evaluate the function with a radius of 4cm:
b) To represent how much the area (in square cm) of a circle increases by when its radius increases from 10.9 to 10.91 cm, you have to represent the difference between the final area with a radius of 10.91cm and the initial area of a radius of 10.9cm:
c) To represent the area of 5 circles that all have a radius of 12.7 cm, we can use the function f(r) to represent the area of a circle with a radius of 12.7cm and multiply it for 5:
d) To represent the area of the larger circle that is 59 square cm more than the first circle (with a radius of 28 cm), we can use the function f(r) to obtain the area of the first circle and addition 59 square cm:
Answer:
Step-by-step explanation:
Given
Required
Determine the remainder
Write down the first digit i.e. 1. So, we have:
--------------------------------
Multiply that 1 by the divisor (1) i.e. 
Write down the result under the next digit i.e. (under 2)
--------------------------------
Sum 2 and 1 i.e 
--------------------------------
Multiply that 3 by the divisor (1) i.e. 
Write down the result under the next digit i.e. (under -3)
--------------------------------
Sum -3 and 3 i.e 
--------------------------------
Multiply that 0 by the divisor (1) i.e. 
Write down the result under the next digit i.e. (under 3)
--------------------------------
Sum 3 and 0 i.e 
Since there is no other computation to do, the result of the last sum is the remainder.
So:
Answer:
2.17 x 10^8
0.253 x 10^-4 if number is 0.000253 or 2.53 x 10^2 if number is 253
Step-by-step explanation:
The biggest 3 digits whole number is 999.
Hence, the biggest sum one can do with two of those is 999+999=1998
