First isolate y for each equation so that y = x^2 + 3 and y = 2x^2 + 2 now set those equal to eachother and solve for x,
x^2 + 3 = 2x^2 + 2
= √x^2 = <span>√1
x is +- 1
then plug in x for one of the original equations y = 1^2 + 3 = 4
x = +-1
y = 4</span>
-5x-10=2(x-4)
-5x-10=(2•x)(2•(-4)
-5x-10=2x-8
-5x-10+10=2x-8+10
-5x=2x+2
-5x-2x=2x-2x+2
-3x=2
-3x\-3=2\-3
x=0.666
x=0.67
Answer:
Rational
Step-by-step explanation:
An irrational number is any number that cannot be turned into a fraction. 7 can be turned into a fraction.
Answer:
3.15
Step-by-step explanation:
15.75 divided by 5 gets you 3.15
