Mathematics, 18.11.2019 10:31 lizdeleon248
When the solution of x2 + 9x β 9 is expressed as 9 plus or minus the square root of r, all over 2, what is the value of r? x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a
a: 117
b: 54
c: 45
d: 9
question 3(multiple choice worth 1 points) (08.03 lc) identifying the values a, b, and c is the first step in using the quadratic formula to find solution(s) to a quadratic equation. what are the values a, b, and c in the following quadratic equation? β5x2 β 9x + 12 = 0
a: a = β9, b = 12, c = 0
b: a = β5, b = β9, c = 12
c: a = 5, b = 9, c = 12
d: a = 9, b = 12, c = 0
question 4(multiple choice worth 1 points) (08.03 mc) solve for x using the quadratic formula: x2 β 6x + 9 = 0 x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a
a: x = 6
b: x = 3
c: x = 1
d: x = 0
6(multiple choice worth 1 points) (08.03 mc) use the quadratic formula to find the exact solutions of x2 β 5x β 2 = 0. x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a
a: x equals 5 plus or minus the square root of 33, all over 2
b: x equals negative 5 plus or minus the square root of 33, all over 2
c: x equals 5 plus or minus the square root of 17, all over 2
d: x equals negative 5 plus or minus the square root of 17, all over 2
question 7(multiple choice worth 1 points) (08.03 mc) the quadratic formula, x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a, was used to solve the equation. 2x2 β 8x + 7 = 0. fill in the missing denominator of the solution. 4 plus or minus the square root of 2, all over blank
a: β16
b: 2
c: 4
d: 14
question 8(multiple choice worth 1 points) (08.03 lc) identifying the values a, b, and c is the first step in using the quadratic formula to find solution(s) to a quadratic equation. what are the values a, b, and c in the following quadratic equation? β6x2 = β9x + 7
a: a = 9, b = 7, c = 6
b: a = β9, b = 7, c = β6
c: a = β6, b = 9, c = β7
d: a = β6, b = β9, c = 7 q
question 9(multiple choice worth 1 points) (08.03 mc) the quadratic equation 4x2 + 45x + 24 = 0 was solved using the quadratic formula, x equals negative b plus or minus the square root of b squared minus 4 times a times c, all over 2 times a. one solution is β10.69. what is the other solution? round to the hundredths place.
a: 0.51
b: 10.69
c: β1.12
d: β0.56
question 10(multiple choice worth 1 points) (08.03 lc) solve: 25x2 β 30 = 0 round the answer to the nearest hundredth.
a: x = β1.10 and x = 1.10
b: x = β26.15 and x = 1.15
c: x = 0
d: x = β0.83 and x = 0.83
Answers: 1
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Mathematics, 21.06.2019 20:30
For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.
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Mathematics, 21.06.2019 22:00
Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft.what is the area of the stage? enter your answer in the box. ftΒ²
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When the solution of x2 + 9x β 9 is expressed as 9 plus or minus the square root of r, all over 2, w...
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