Cherri filled out a deposit slip today. She deposited two checks for $56.13 and $22.10 and took out $20 in cash.
1 answer:
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The vertex-form of a quadratic equation is 
, where (h, k) is the vertex of the parabola.
To complete the square of a quadratic expression in standard form, we write the coefficient of x as 2*b, then add and subtract
.
so b=4, now add and subtract
.
To complete the square of a quadratic expression in standard form, we write the coefficient of x as 2*b, then add and subtract
so b=4, now add and subtract
Answer:
38.25 cm²
Step-by-step explanation:
We use the formula for the length of an arc to find the central angle of the sector of the circle.
Then we use the formula for the area of a sector of a circle to find the area.
Length of arc of circle of radius r:
s = arc length
n = measure of the central angle of the sector
Area of sector of circle of radius r:
A = area of sector of circle
n = measure of the central angle of the sector