If a circle has a radius of 
, it is true that: <u>D. The </u><u>circumference </u><u>of the </u><u>circle </u><u>is </u>
<u />
<em><u>Recall the following about a </u></em><em><u>circle</u></em><em><u>:</u></em>
- Area of a circle =
- Circumference of a circle =
If a circle has a radius of 
, the area and circumference of the circle would be the following:
- Area of a circle =
- Substitute
into the area formula
- Circumference of a circle =
- Substitute into the circumference formula
Therefore, if a circle has a radius of , it is true that: <u>D. The </u><u>circumference </u><u>of the </u><u>circle </u><u>is </u><u />
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Let the Width be x cm
Then the length which is 5cm more than width must be (x+5) cm
Using the formula for the area = length* width
x(x+5) =50
(Distribute x on the parenthesis )
(subtract 50 )
(Factor)
we get
(Not x=-10 because negative side length not possible)
Width = 5 cm
Length = 5+5= 10 cm
Perimeter = 2(Length + width)
So
Perimeter = 2(10+5)
Perimeter = 2*15=30 cm
Answer:
1. wages + other earnings = gross income
42500 + 2800 = 45300
2. gross income - any tax-deferred = adjusted gross income
45300 - 3200 = 42100
3. adjusted gross income - exemptions & deductions = taxable income
42100 - 4050 - 6540 = 31510
Step-by-step explanation:
