Answer:
216
Step-by-step explanation:
Given the figure.
And the perimeter in the ratio 4: 2: 1.
Perimeter of smallest circle =
To find:
Area of shaded region.
Solution:
To find the area, we need to have radius first.
And radius can be calculated by the given perimeter.
Formula for Perimeter is given as:
Perimeter =
Radius of smallest circle = 4 cm
Ratio of perimeter is equal to the ratio of the radii.
Radius of 2nd smallest circle by the given ratio = 8 cm
Radius of largest circle = 16 cm
Area of a circle is given the formula:
Area of the smallest circle =
Area of the 2nd smallest circle =
Area of the largest circle =
Area of the shaded region = Area of largest circle + 2 Area of 2nd smallest circle + 3 Area of smallest circle - 2 Area of smallest circle - 3 Area of 2nd smallest circle
Area of the shaded region = Area of largest circle - Area of 2nd smallest circle + Area of smallest circle =
Answer:
Step-by-step explanation:
Add on both sides and subtract on both sides.
Solve the fractions.
Multiply by the reciprocal of the fraction with the variable to isolate the variable. The reciprocal is the inverted fraction.
Answer:
$7153.03
Step-by-step explanation:
To find the total amount after 3 years, we can use the formula for compound tax:
P = Po * (1+r/n)^(t*n)
where P is the final value, Po is the inicial value, r is the rate, t is the amount of time and n depends on how the tax is compounded (in this case, it is semi-annually, so n = 2)
For our problem, we have that Po = 5000, r = 12.3% = 0.123, t = 3 years and n = 2, then we can calculate P:
P = 5000 * (1 + 0.123/2)^(3*2)
P = 5000 * (1 + 0.0615)^6
P = $7153.029
Rounding to the nearest cent, we have P = $7153.03
Answer:
it is voa
Step-by-step explanation:
45= 6r-3
45+3=6r
48=6r
r=8