Answer:
<em>t = 5 seconds</em>
Step-by-step explanation:
We must solve the equation of movement of the ball as a function of time in seconds.
We must find how many seconds it takes until the ball touches the ground. When the ball touches the ground, the height b (t) = 0
Then we equate the equation to zero and solve for t.

Use the quadratic formula.
Where


We take the positive solution
<em>t = 5 seconds</em>
Answer:
you alrady got the answer
Step-by-step explanation:
Theoretical probability
Heads = 1/2
Tail = 1/2
Expiramental probability
Heads = 11/20
Tails = 9/20
Answer:
Step-by-step explanation:
Since the ladybug is
far from each edge of the rectangle, it follows that the length of the new rectangle is
and the width is
.
Recall a formula for the area of a rectangle:
, where
is a length and
is a width of the rectangle.
Substitute
and
into the formula:

Multiply the numbers:

Therefore, the required area is equal to
.