Answer:
C
Step-by-step explanation:
related equation
-16t^2 + 32t + 20 = 0
-4t^2 + 8t + 5 = 0
Δ/4 = 16 + 20 = 36
t1 = (-4 + 6)/-4 = -1/2
t2 = (-4 - 6)/-4 = 5/2
-16(t+1/2)(t-5/2)
-16(2t+1/2)(2t-5/2)
-4(2t+1)(2t-5)
9514 1404 393
Answer:
c. If a plane contains a line, it contains the points on the line.
Step-by-step explanation:
The only statement relating a point on a line to the plane containing the line is the one shown above.
_____
<em>Additional comment</em>
Identifying true statements is a reasonable strategy for many multiple-choice questions. Another strategy that can be employed is finding the one true statement that is <em>relevant to the question being asked</em>.
We are given the fact that he plays football, so the probability of his being a football player is 100%.
We know that 1/3 of the football players also play baseball, so the probability that he is also a baseball player is 1/3.
Answer:
C:44
Step-by-step explanation:
To find the perimeter, you do length+length+width+width
So
13+13+9+9=44
Another formula:
L2+W2 (length x 2 + width x 2)
Answer: infinitely many
Step-by-step explanation:
In geometry , A line is a straight (one dimensional ) undefined figure which has no thickness. It extends infinitely in each direction (no-endpoint).
A point is also a undefined geometric figure that has no dimension , it helps to get the exact location of any figure on plane.
Since a line extends infinitely in both directions, so there are infinite number of points contained by it.
Thus , the number of points are contained on a line = Infinitely many
