Yes he is correct because if you do the algorithm, 0+3=3 and 20+40=60 and 60+3=63. There is no regrouping needed.
Answer:area of the circle=πr²
3.14 =3.14 ×r²
r²= 1
r. =1 millimeters
Answer:
a proportional relationship exists if the ratio of values is a constant
Step-by-step explanation:
The equation describing a proportional relationship is ...
y = kx
If you are given a table of values of x and y, they will be proportional if ...
y/x = k
for all (x, y) pairs.
First do any exponents: 3 to the 0 power would equal 1. Then multiply and divide in order: 2x1=2, 2/2=1. Then subtract: 23.6-1=22.6 :)
400, because each interval represents 40 and they are 10 intervals apart. 40*10=400
