Answer:
A and C (they are same equation)
x^2-4=0
x^2=4
x can be 2 and -2
2^2=4
-2^2=4
Step-by-step explanation:
prove
b.
x-4=0
X=4 (one solution)
d.
x+4=0
X=-4 (one solution)
Answer:
The cost of the dentist visit is $250
Step-by-step explanation:
The formula for the cost of the dentist visit is given by
c(n) =50+100n where n is the number of cavities
Let n =2 and substitute in
c(2) =50+100(2)
= 50 + 200
c(2) = 250
The cost of the dentist visit is $250
Brush your teeth!
Answer:
Step-by-step explanation:
10^0=1 so 1.64*1=1.64
10^2=10*10=100 so 2*100=200
1.64/200=0.0082
There is no real solution to this problem
Answer:1/5
Explanation The answer is 1/5 because 05×0 is zero so 0+1/5 equals 1/5