Answer:
Step-by-step explanation:
ok ok ok ok ok ok
Answer: 48
Step-by-step explanation:
Given
Trapezoid DEFG is dilated by a scale factor of
Suppose the length of EF is
Multiply the side length of DEFG by to form E'F'
Answer:
Step-by-step explanation:
Each block has two 20×1 faces, two 20×2 faces, and two 2×1 faces.
Surface area of one block = 2(20×1) + 2(20×2) + 2(2×1) = 124 sq in
Total surface area = 4(124) = 496 sq in.
Largest surface area: Assemble the blocks end-to-end into a block that is 80 by 2 by 1. Six of the 2 by 1 faces are hidden, so the surface area is 496 - 6(2×1) = 484 sq in.
Smallest surface area: Assemble the blocks into a block that is 20 by 4 by 2. Four of the 20 by 2 faces and four of the 20 by 1 faces are hidden, so the surface area is 496 - 4(20×2) - 4(20×1) = 256 sq in.
Difference in surface area = 484-256 = 228 sq in.
Answer:
The maximum height is:
The ball reaches the ground in 1.79 s.
Step-by-step explanation:
We need to take the derivative and equal to zero to find the time at the maximum height.
(1)
Now, we just need to put t(max) into equation (1) to find h(max)
If we want to get the time when the ball reaches the ground we just need to equal h(t) to zero.
Let's solve this quadratic equation.
We will get two solutions and we must choose the positive value.
t1 = 1.79 u
t2 = -0.10 u
Therefore, the ball reaches the ground in 1.79 u.
I hope it helps you!
Answer
Find the approximate value of sin C .
To proof
By using the trignometric identity
Now as given in the diagram
as in the diagram
AB = 5 units
BC = 13.93 units
Now put it in the identity
solving
sinC = 0.36° (approx)
Option (D) is correct
Hence proved