Figure WXYZ is a rectangle with a semicircle added to its base.What is the perimeter of figure WXYZ? Use 3.14 to approximate pi.
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Answer 1
Answer:
Figure WXYZ is a rectangle that has a semicircle added to its base. The rectangle has a length of sixteen inches and a width of seven inches. The semicircle has a diameter equal to the length of the rectangle.
Given: Rectangle: Length = 16 inches ; width = 7 inches Semicirle added to its base, the length of the rectangle. Only one length.
We need to get the circumference of the semi circle and add the length and 2 widths of the rectangle.
Circumference of a circle = 2πr ⇒ 2 * 3.14 * 8 inches = 50.24 Circumference of a semicircle = 50.24/2 = 25.12 inches Widths of the rectangle = 2 * 7 inches = 14 inches
Perimeter of the figure = 25.12 in + 14 in + 16 in = 55.12 inches.
Aaron is solving the equation x2 – x = –2 with the quadratic formula. What values should he use for a, b, and c?a = 1, b = –1, c = –2 a = –1, b = 1, c = –2 a = 1, b = –1, c = 2 a = –1, b = 1, c = 2
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A = 1 B = -1 C = 2 is your answer if you solve the equation.
(And don't worry I didn't copy this person's answers. I just solved it out in my head that's all).
x² - x = -2 x² - x + 2 = 0
Comparing the given equation to Ax² + Bx + C = 0, we get,
A = 1 B = -1 C = 2
Simplify root 4/3+root 7 by rationalizing the denominator