hollymgriffis
hollymgriffis
10-04-2015
Mathematics
contestada
solve for b:
b² = 8b + 84
Respuesta :
Panoyin
Panoyin
10-04-2015
b² = 8b + 84
b² - 8b - 84 = 0
b =
-(-8) +/- √((8)² - 4(1)(-84))
2(1)
b =
8 +/- √(64 + 336)
2
b =
8 +/- √(400)
2
b =
8 +/- 20
2
b = 4
+
10
b = 4 + 10 b = 4 - 10
b = 14 b = -6
Answer Link
VER TODAS LAS RESPUESTAS ( 41+ )
Otras preguntas
a rock called Shale is formed from the skeletons of ancient Coral animals. true or false
Which set of measurements could be the side lengths of a triangle? A. 5M, 11M, 7M B.10 m, 4 m, 5 m C.8 m, 4 m, 4 m D.6 m,11 m, 5 m
What is the reciprocal of x^2-4x+18
Simon wants to use both area formulas shown to find the area of the trapezoid. How can he divide the trapezoid to do that?
If a car is seen stopped at a stoplight at a certain instant and then it is seen 100m away from the light at some time later, the car must have been ________ at
Pls help me :((((((((((
Emanuel surveyed a random sample of 50 subscribers to Auto Wheel magazine about the number of cars that they own. Of the subscribers surveyed, 15 own fewer tha
a) 10.5 b) 4 c) 10 d) 6
A circle has a diameter of 12 units, and its center lies on the x-axis. What could be the equation of the circle? Check all that apply. (x – 12)2 + y2 = 12 (x –
The employees at the zoo gift shop earn commission for every stuffed animal they sell. An employee sold $880 worth of merchandise and earned $264 in commission.
