Answer:
Step-by-step explanation:
24/10, 2 4/10 , 12/5
Assuming the question is: '15 is 250% of what number'.
We can write an equation.
'is' indicates an equal sign
'of' indicates multiplication
'what number' indicates an unknown number we can call 'x'
So we have:
15 = 250% * x
or
15 = 2.5x
Divide 2.5 to both sides:
x = 6
Answer:
y = 2x^2 +1
Step-by-step explanation:
This is a parabola so it is in the form
y = a( x-h) ^2 + k
where ( h,k) is the vertex which is at ( 0,1)
y = a (x - 0)^2 + 1
y = ax^2 +1
Pick another point on the graph to determine a
(1,3)
3 = a(1)^2 +1
Subtract 1 from each side
3-1 = a(1)
2 =a
y = 2x^2 +1
You would multiply 4 by 72 then u multiply 4 * -6 then after that you would add 15
