Answer:
x = 3
Step-by-step explanation:
x^2 - 9 = (x+3)(x-3)
[(x + 3)*(x -3] /x+3) = x-3
x - 3 = 0
x = 3
900=(1/2)*b*10*15
1800=150b
b=12
I hope you can figure out FC with this info.
Answer:

Step-by-step explanation:
height=11km
diameter=10km
radius=diameter÷2
=10÷2
=5km
now,
volume=

Answer:
the trid one becasue
Step-by-step explanation:
To get the correct answer, you can count the total number of shaded tenths and the total number of shaded hundredths and then regroup.
There are 9 shaded tenths and 18 shaded hundredths. Regroup 10 hundredths into 1 tenth to get 10 tenths and 8 hundredths. Then regroup the 10 tenths in one whole, giving you 1 whole and 8 hundredths. The product is 1.08.
Another way to get the answer is to count the total number of shaded hundredths. There are 108 hundredths. Regroup 100 of them as one whole, giving you 1 whole and 8 hundredths.
Answer:
140
Step-by-step explanation:
Angle 4 is congruent to angle 2 by corresponding angles postulate. Therefore, angle 2 is also 40. Angle 2 and angle 3 are supplementary, or add up to 180 because they are on a straight line. 140 and 40 add up to 180 so angle 3=140 degrees