Jan says that a rhombus is a parallelogram and that every parallelogram is also a rhombus. Is Jan correct?
1 answer:
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Answer:
Step-by-step explanation:
The ball will be fastest right before it hits the ground because of gravity.
First, let's find the value of t where the ball hits the ground.
-8t²+25 = 0
-8t² = -25
t² =
t =
Note: t has to be positive, which is why there is no positive/negative symbol.
Now, let's calculate the derivative of this function. The derivative will give us the speed of the ball for time t.
d/dx = -16t
Now, let's plug in the value of t
-16 ( }
=
=
Take the absolute value of that because speed can't be negative
That's the speed of the ball. You can convert that into decimal if you'd like.
Have an awesome day! :)
First, let's find the value of t where the ball hits the ground.
-8t²+25 = 0
-8t² = -25
t² =
t =
Note: t has to be positive, which is why there is no positive/negative symbol.
Now, let's calculate the derivative of this function. The derivative will give us the speed of the ball for time t.
d/dx = -16t
Now, let's plug in the value of t
-16 (
=
=
Take the absolute value of that because speed can't be negative
That's the speed of the ball. You can convert that into decimal if you'd like.
Have an awesome day! :)
Answer:
A ≈ 153.1 units²
Step-by-step explanation:
area (A) of rectangle is
A = length × breadth = 16 × 8 = 128 units²
The diameter of the circle is 8 , then radius = 8 ÷ 2 = 4
area of semicircle = × πr² ( r is the radius )
= × π × 4²
= × π × 16
= 8π
Then area of figure = 128 + 8π ≈ 153.1 units² ( to the nearest tenth )