Answer:
1. 7
2. 97
Step-by-step explanation:
3 is the bottom length of the triangle and its the same for both sides so that leaves us with the square in the middle, since the bottom of the triangle is 3 and the top of the trapezoid is 10 we subtract 3 from 10 and get 7 and since a square has all identical sides we know the area of the square is 7 x 7 = 49 + 48 (which is the two triangles) = 97
Answer: 9, subtract : 10, 12.5 : 11, 134.25 : 12 is the 3d answer
B. 102.57 cu. cm is the answer
Solution:
V=πr^2h
The diameter is 14. To find the radius you divide the radius by 2 which is equal to 7. [Radius is 2 times diameter]
V= 3.14×7×7×2
V= 102.57
we gonna need a little more than that to help ya, bud.
Answer:
(a) 10 seconds
(b) 490 meters
Step-by-step explanation:
<h2>
<u>(</u><u>A</u><u>)</u></h2>
When the object hits the ground, it shows that the height is 0. Hence, h(t) = 0.
0 = 4.9(10+t)(10-t)
0 = (10+t)(10-t)
t = 10, -10
Since time cannot be negative, t = -10 will be rejected.
Therefore, t = 10 seconds
<h2>
<u>(</u><u>B)</u></h2>
Based on the question, <em>"</em><em>t </em><em>seconds </em><em>after </em><em>the </em><em>object </em><em>is </em><em>dropped </em><em>from </em><em>a </em><em>helicopter"</em><em>,</em><em> </em>means that the time starts right after the object is dropped from the helicopter, this shows that t = 0.
h(0) = 4.9(10+0)(10-0)
= 4.9(100)
= 490 meters