Solve.If the three lengths of the sides of a triangle are known, Heron's formula can be used to find its area. If a, b, and c are the three lengths of the sides, Heron's formula for area is: A = 
where s is half the perimeter of the triangle, or s = 
(a + b + c).Use this formula to find the area of the triangle if a = 8 cm, b = 10 cm and c = 14 cm. 
A. 32
sq cm
B. 96
sq cm
C. 4
sq cm
D. 16
sq cm
Answer: D
Mathematics
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Graph the polar equation.r = 3(2 + 2 sin ?)
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Use division to express the (Dividend) as (Divisor)(Quotient) + (Remainder).
A. (x + 2)(x2 - 3x + 6) + 3 B. (x + 2)(x2 + x + 2) + 7 C. (x + 2)(3x2 - 4x + 2) + 15 D. (x + 2)(x2 - 3x + 6) - 9
Mathematics
The matrix is the final matrix form for a system of two linear equations in variables x1 and x2. Write the Solution of the system.
A. x1 = 3 x2 = 5 B. x1 = -5 x2 = -3 C. x1 = 5 x2 = t for any real number t D. x1 = 5 x2 = 3
Mathematics
Supply the missing numbers. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.fractiondecimalpercent?0.333
A.
 ? | 33.3% |
B.
 ? | 3.33% |
C.
 ? | 33.3% |
D.
 ? | 3.33% |
Mathematics