Take 1/2 of 1 and square it and add to both sides
1/2 squared=1/4, add to both sides
x^2+x+1/4=19/4+1/4
factor perfect square
(x+1/2)^2=20/4
(x+1/2)^2=5
square root both sides
x+1/2=+/-√5
minus 1/2 both sides
x=-1/2+/-√5
x=-1/2+√5 or
x=-1/2-√5
B is answer
Answer:
A
Step-by-step explanation:
The circumference of a cricle is the diameter(140ft) times pi. Therefore answer A
-39°C is <em>75 Celsius degrees</em> "warmer" than -114°C . . .
if you could call either one "warm".
( 75 Celsius degrees warmer is the same as 135 Fahrenheit degrees warmer.)
Answer:
150
Step-by-step explanation:
The sum of the angles of a quadrilateral are 360. Let x be the unknown angle
30+70+110+x = 360
Combine like terms
210 +x = 360
Subtract 210 from each side
210+x-210 = 360-210
x = 150
Corresponding angles postulate, as the two 35 degree angles are corresponding.