Answer:
false
Step-by-step explanation:
Formula: c=2
r
Circumference= two times pi times radius
8(8v-7)=12-4v
multiply the bracket by 8
(8)(8v)=64v
(8)(-7)=-56
64v-56=12-4v
move -4v to the other side
sign changes from -4v to +4v
64v+4v-56=12+4v
68v-56=12+4v-4v
68v-56=12
move -56 to the other side
sign changes from -56 to +56
68v-56+56=12+56
68v=12+56
68v=68
divide both sides by 68 to get v by itself
68v/68=68/68
cross out 68 and 68, divide by 68
then becomes 1*1*v=v
v=68/68
Divide the fraction by 68
68/68=1, 68/68=1
1*1=1
Answer:
v=1
If x is the first number, x+2 is the next consecutive even integer. The difference (subtraction) of their squares equals 20. Therefore:
(x+2)²-x²=20...expand this:
x²+4x+4-x²=20
x²+4x+4-x²=20
4x+4=20
4x=16
x=4. Therefore the next consecutive even integer is x+2=6.
To check: 6²-4² must equal 20
36-16=20 check!
Answer: 395
Step-by-step explanation:
201+99+95
