I hope this helps you
2x^2-4x+7=0 a=2 b=-4 c= 7
disctirminant =b^2-4ac
disctirminant =(-4)^2-4.2.7
disctirminant = 16-56= -40
x=-b+square root of disctirminant ÷2a
x=4+2square root of (-10)/4
x=2+square root of (-10)/2
x'=4 -2 square root of (-10)/4
x'=2 -square root of (-10)/2
Answer:
Option D y=-3x^2 +4
Step-by-step explanation:
This is the correct answer because the graph is going down which shows that it is negative and the y intersect is +4
Given function is
Now question says to find the graph that shows the axis of symmetry for the given function.
Graph is missing but I can help you to find the correct graph.
Given equation is in the vertex form whose formula is given by
Comparing given function with above formula, we get:
a=1, h=2 and k=1.
For the vertex formula , we know that axis of symetry is given by equation:
x=h
So for the given function, axis of symmetry will be x=2
Graph of x=2 will be a vertical line crossing x-axis at x=2
So you just need to find the graph from given choices which contains a vertical line crossing x-axis at x=2.
Okay, so there's 100 pennies in a dollar and 100 x 200 = 20,000
Then to find our amount of millimeters we need to do 20,000 x 1.55 = 31,000 millimeters = 31 meters
Hope it helps!
First you find the sine of 41= opposite/adjacent
sin41=a/26
a=sin41(26)
a=17.05
a=17
