Line segment AB is the perpendicular bisector of line segment XZ. Which statement is true?
A)
XZ = AB
B)
XB = XZ
Eliminate
C)
∠ABZ = ∠ABX
D)
∠BAZ = ∠ABX

Question

Line segment AB is the perpendicular bisector of line segment XZ. Which statement is true?
A)
XZ = AB	
B)
XB = XZ	
Eliminate
C)
∠ABZ = ∠ABX	
D)
∠BAZ = ∠ABX

anonymous · Answer

Did you draw the line segment and the perpendicular bisector?

anonymous · Answer

yes

anonymous · Answer

So what do you think is the answer?

anonymous · Answer

i think it is either a or c....i put c but idk if that is right

anonymous · Answer

C is correct, but do you know why?

anonymous · Answer

no

anonymous · Answer

OK, if a line or segment is perpendicular to another line or segment, it forms two right angles (90 degrees). That's the definition of perpendicular. So angle ABZ is a right angle and ABX is a right angle. So the two angles are congruent.

anonymous · Answer

oh ok so whenever it says perpendicular lines, you have to think angles?

anonymous · Answer

Think right angles (90 degrees).

anonymous · Answer

ok thank you i have one more question, do u think you can look at it?

anonymous · Answer

Fire away.

anonymous · Answer

A baseball is thrown up in the air from a height of 3 feet with an initial velocity of 23 feet per second. When does the baseball hit the ground?
A)
-0.12 seconds	
Eliminate
B)
1.44 seconds	
C)
1.56 seconds	
D)
1.79 seconds



ok for this one i don't know which part i did wrong i got everything but idk where i messed up with the quadratic formula i got -.34 and 1.34 and my answers but their not in the choices

anonymous · Answer

I'll have to look that one up. Give me about 15 minutes.

anonymous · Answer

have you got it?

anonymous · Answer

Well it looks like this should be the quadratic equation.

$$-16t ^{2}+23t+3$$

I get 1.56 seconds

anonymous · Answer

yea thats what i did the but when i put it into the quadratic formula i didnt get that

anonymous · Answer

can u show me how you got that?

anonymous · Answer

Open study just eat my response. Anyhow it's probably just a simple math error. I'll try again.

anonymous · Answer

$$[-23\pm \sqrt{23^{2}-(4)(-16)(3)}]/(2)(-16)$$

anonymous · Answer

$$[-23\pm \sqrt{784}]/-32$$

anonymous · Answer

$$[-23\pm26.85]/-32$$

anonymous · Answer

$$-49.85/-32=1.557$$ Ignore the negative solution since you can't have negative time.

anonymous · Answer

oh i see where i went wrong...i put 721 instead of 784. thank you soooo much for helping me...it means a lot

anonymous · Answer

yw That's all for me tonight.

anonymous · Answer

thank you for using your time to help me..