x² + 7x - 4 = 0
a = 1, b = 7, c = -4
x = [-b +/- √(b² - 4ac)]/2a
= [-7 +/- √(49 + 4)]/2
= (-7 +/- √53)/2
Answer:
5) D
6) C
7) B
8) D
9) 109°
10) 83°
Step-by-step explanation:
5) In y=mx+b the slope is m. In perpendicular it'll be opposite, so the answer is D.
6) With the above knowledge about slope, the slope will be the same so it'll be C.
7) They are in the same position by different lines and will be corresponding aka B
8) These are adjacent angles because they are next to each other aka D
9) 180 - 71 = 109
10) They are correspodning so 83°
(slightly rushing so I hope this helped, have a nice day!)
Answer:
-6<x<9 is the right option.
Answer:
Step-by-step explanation:
circumference=2πr
=2*3.14*2
=12.56 km
SAS
They share two sides, one marked by the red lines, and the line they share in the middle. They also share the angle of that middle line, at the bottom.
The angle is between the sides, so it’s SAS
