Answer:
6.21 seconds
Step-by-step explanation:
The position function of a free-falling object is,

Where,
= initial height of the object,
= initial velocity of the object,
Here,


Hence, the height of the ball after t seconds,

When s(t) = 0,




∵ Time cannot be negative,
Hence, after 6.21 seconds the ball will reach the ground.
The correct answer for the question that is being presented above is this one: "90 degrees." Sylvia’s aunt asked her to help cut out fabric for a quilt. The figure shows the pattern of one section that is made of triangles. The <span>degree of rotation clockwise about point B should Sylvia use to prove that ΔABC (pre-image) and ΔIBH (image) use the same amount of fabric is 90 degrees clockwise.</span>
Answer:
$1,267.50
Step-by-step explanation:
assumption;
b = cost of rental space = $780
x = number of guests = 50 people
m = price of food per person = $9.75
y = total budget
y = mx + b
y = (9.75 * 50) + 780
y = 487.50 + 780
y = $1,267.50