2 answers:
Answer:
36
Step-by-step explanation:
f(x)=2x^2
f(-3)=2(-3)^2
f(-3)= -6^2
f(-3)=36
Answer:
Step-by-step explanation:
f(x) = 2 x^2
f(-3) means that wherever there is an x on the right, put in - 3
f(-3) = 2 (-3)^2
(-3)^2 = 9
f(-3) = 2 * 9
f(-3) = 18
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Let the number be represented by x
2x=60+ 5x -20*2=60+5*-20
2x-5x=5x-5x+60 -40=60+-100
-3x=60 -40=-40
-3x/-3=60/-3
x=-20
Therefore the number is -20
Answer:
Step-by-step explanation:
- (2+8)+8
- 2+(8+8)
- 2+0 mistake, 8 + 8 ≠ 0, should be 16 instead of zero
- 2
A coefficient<span> is a number in front of a variable.</span>
Y = 4/5(x + 6) - 4
y = 4/5x + 4.8 - 4
y = 4/5x + 0.8
4/5x - y = 0.8
Multiply by 5
Solution: 4x - 5y = 4
Answer:
5
Step-by-step explanation:
in the table, when the x value is 3, its corresponding f(x) value is 5
