Answer:
C
Step-by-step explanation:
If you fill in x=0, you are left with the y intercept. In the picture you can see it must be larger than y=10. This invalidates answer A and D.
The x-coordinate top of the parabola ax²+bx+c=0 is given by y = -b/2a, so immediately we can see -b has to be positive. This leads you to answer C because -9x implies b=-9, and --9 is positive.
Answer:
sorry i dont have enough information
Step-by-step explanation:
Answer:
See below
Step-by-step explanation:
I believe that you only had to do letters F, H, and J. In that case, let's go over each one!
F: For isolating, we need to get rid of the 1/2 first. Let's multiply each side by 2:
After this, we just subtract from each side to get . Dark Blue is correct! Let's now plug in those numbers below:
G: Let's isolate the vw^2 on one side by subtracting y from each side:
Let's now divide each side by v, then put each side under a square root to get our final answer:
Orange is correct! Again, let's solve the problem underneath:
w=
H: This one has some stuff that we haven't worked with quite yet (like terms), but our approach is the same: isolate c on one side of the equation.
Purple is correct! Let's solve the problem:
Answer:
8p + 25b
Step-by-step explanation:
The expression of the word problem above can be written thus:
Since abc is congruent to def a and d are congruent angles
So you can set the equation to x + 39 = 2x
Solve to get x = 39
Plug that into (x + 39)
You should get a= 78 degrees
Since a and d are congruent, d is also equal to 78 degrees