Convert the number to binary form.15 decimal

A. 111two
B. 1111two
C. 11110two
D. 1110two


Answer: B

Mathematics

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Use Heron's formula to find the area of the triangle. Round to the nearest square unit.a = 7, b = 13, c = 7

A. 17 B. 9 C. 36 D. 34

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Graph the given function. Identify the vertex and the intercepts.y = x2 + 2x - 8

A. Vertex: (- 1, - 9)
x-intercepts: -4 and 2
y-intercept: -8

B. Vertex: (1, - 9) 
x-intercepts: -2 and 4 
y-intercept: 8

C. Vertex: (1, - 9)
x-intercepts: -2 and 4 
y-intercept: -8

D. Vertex: (- 1, - 9) 
x-intercepts: 4 and 2
y-intercept: -8

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Factor the expression completely. If the polynomial will not factor, write "prime."a2b2 - 25

A. (a - b - 5)(a + b + 5) B. 2(ab - 5) C. (ab - 5)(ab + 5) D. (ab - 5)(ab - 5)

Mathematics