Mathematics, 22.11.2019 13:31 maddy3lizabeth
11. a cylinder has a radius of 2x + 3 and a height of 6x + 1. which polynomial in standard form best describes the total volume of the cylinder? use the formula v= (pie) r^2h for the volue of a cylinder.
a. 12(pie) x^2+20(pie)x+3(pie)
b. 24(pie) x^3+76(pie)x^2+66(pie)x+9(pie)
c. 144(pie)x^4+480(pie)x^3+427(pie)x^2 +120(pie)x+9(pie)
d. 72(pie)x^3+132(pie)x^2+38(pie)x+3(p ie)
12. a sphere has a radius of 2x+5. which polynomial in standard form best describes the total surface area of the sphere? use the formula s=4(pie)r^2 for the surface area of a sphere.
a. 16(pie)x^2+80(pie)x +100(pie)
b. 16(pie)x^2+40(pie)x+100(pie)
c. 100(pie)x^2+80(pie)x+16(pie)
d. 100(pie)x^2+100(pie)
Answers: 3
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Mathematics, 21.06.2019 22:30
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14
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Mathematics, 21.06.2019 22:40
(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.
Answers: 3
11. a cylinder has a radius of 2x + 3 and a height of 6x + 1. which polynomial in standard form best...
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