A and D are your answers.
They have an Infinite number of solutions because when the equations are put into slope-intercept form (y=mx+b), they end up having the same slope (m) and the same y-intercept (b).
This type of problem can be decided by looking at whether the function is positive or negative in the vicinity of the zeros. There are three roots: -12, -6, and 2 at which the function is clearly 0. Look at the four intervals the x axis:
interval x<-12: function is negative (just test using a number <-12, say, -13)
interval (-12,-6): function is positive
interval (-6, 2): function is negative
interval x>2: positive
From the above you deduce that at the roots the function must be crossing the x-axis (as opposed to just touching it) because the function value changes its sign every time.
Answer:
HL
Step-by-step explanation:
The things that are congruent between the 2 triangles are the 90° angles and the hypotenuses and legs. HA and LA only work with the acute angles, not right angles, and AA isn't a way of proving things to be congruent, meaning that HL is the answer
3.932 × 10^5
First you want to count how many zeros are in there 2 ok then count the 932 because the 3 hundred thousand is going to stay as a regular digit then when you have a scientific notation you need it to be a power of 10 so ten is always going to be the coefficient for the decimal basically.
Easy.
2x + 3x
2x + 3x
2x ( 1 + 3x / 2x )
2x ( 1 + 1.5 )
2x ( 3 )
6x
or
2x ( 3 )
or
3x ( 2 )
That's it.
Hope helps ...........
