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mathematics
precalculus 1st

Questions and Answers of Precalculus 1st

For the following exercises, solve each system by any method. 5x + 9y = 16 x + 2y = 4
For the following exercises, use any method to solve the nonlinear system. x² + y² = 1 y² = x²
For the following exercises, solve the system by Gaussian elimination. 3 3 2012/2x-12/27=4
For the following exercises, find the decomposition of the partial fraction for the irreducible non repeating quadratic factor. 4x + 6x + 11 (x+2) (x+x+3)
For the following exercises, use the matrices below to perform the indicated operation if possible. If not possible, explain why the operation cannot be performed.BA =[ A = -10 201 5 25 201₁ B =
For the following exercises, solve each system by Gaussian elimination. 1 3 1 1 4 - 1 1 ---y-z=2 4 3 2= 1 314 2= 1 2
For the following exercises, solve the system using the inverse of a 2×2 matrix.−3x − 4y = 912x + 4y = −6
For the following exercises, decompose into partial fractions. -2x + 6 x²+3x+2
For the following exercises, solve the system of linear equations using Cramer’s Rule.4x − 3y = −32x + 6y = −4
For the following exercises, use any method to solve the nonlinear system. x² + y² = 25 x² - y² = 36
For the following exercises, solve using a system of linear equations. A small fair charges $1.50 for students, $1 for children, and $2 for adults. In one day, three times as many children as
For the following exercises, solve the system by Gaussian elimination. -1.06x-2.25y = 5.51 -5.03x 1.08y = 5.40
For the following exercises, use the matrices below to perform the indicated operation if possible. If not possible, explain why the operation cannot be performed. AB A = [ -10 20 5 25 2₁ B
For the following exercises, find the decomposition of the partial fraction for the repeating linear factors. x³5x² + 12x + 144 x²(x² + 12x +36)
For the following exercises, solve each system by Gaussian elimination. 1 4 - -- 아름다 Z= 1 2 3 - - H|2 2 || || 13 10 7 20 5 4
For the following exercises, solve the system of linear equations using Cramer’s Rule.10x − 6y = 2−5x + 8y = −1
For the following exercises, solve the system using the inverse of a 2×2 matrix.5x−4y = −54x + y = 2.3
For the following exercises, graph the system of inequalities.x2 + y2 < 1y2 < x
For the following exercises, solve using a system of linear equations. A factory producing cell phones has the following cost and revenue functions: C(x) = x2 + 75x + 2,688 and R(x) = x2 + 160x.
For the following exercises, solve each system by addition. -0.2x+0.4y= 0.6 x-2y=-3
For the following exercises, solve the system by Gaussian elimination. 2x-y=2 3x+2y=17
For the following exercises, use the matrices below to perform the indicated operation if possible. If not possible, explain why the operation cannot be performed.100D − 10E -5 -+*++H] A = [ ² ] B
For the following exercises, solve each system by Gaussian elimination. 6x - 5y + 62 = 38 1 }x - }y + 3 5 z=1 3 -4x - zy- -z=-74
For the following exercises, find the decomposition of the partial fraction for the repeating linear factors. 54x³+127x² 2x² (3x + 2)² + 80x + 16
For the following exercises, solve the system of linear equations using Cramer’s Rule.4x + 3y = 232x − y = −1
For the following exercises, use Cramer’s Rule to solve the systems of equations. 0.1x+0.1y0.1z = -1.2 0.1x0.2y + 0.4z = -1.2 0.5x0.3y + 0.8z = -5.9
For the following exercises, solve the system using the inverse of a 2×2 matrix.3x − 2y = 6−x + 5y = −2
For the following exercises, solve each system by addition. 1 1 3 x+√ √y= 1/3x+ 2 4 5² 2 1313
For the following exercises, graph the system of inequalities.x2 − 2x + y2 − 4x < 4y < − x + 4
For the following exercises, use any method to solve the nonlinear system. -x² + y = 2 -4x+y=-1
For the following exercises, graph the system of inequalities. x2 + y2 + 2x < 3y > − x2 − 3
For the following exercises, solve the system by Gaussian elimination. 11x + 10y = 43 15x + 20y = 65
For the following exercises, use the matrices below to perform the indicated operation if possible. If not possible, explain why the operation cannot be performed.C − 0.5D -8 7 -57 4 43 2, E =
For the following exercises, find the decomposition of the partial fraction for the repeating linear factors. 4x² + 55x + 25 5x(3x + 5)²
For the following exercises, solve each system by Gaussian elimination. 3x- у -z= 4x+z=3 5 2 2 3 -x+ = 1 2
For the following exercises, solve the system of linear equations using Cramer’s Rule.2x + 6y = 125x − 2y = 13
For the following exercises, solve the system using the inverse of a 2×2 matrix.8x + 4y = −1003x − 4y = 1
For the following exercises, graph the inequality.1/4 x2 + y2 < 4
For the following exercises, solve each system by addition. 5 √x+1²y=0 4 1/²x-12y= 6 43 120
For the following exercises, use Cramer’s Rule to solve the systems of equations. 200x − 300y = 2400x + 715y = 4
For the following exercises, use any method to solve the nonlinear system. x² - y² = 9 x=y=0
For the following exercises, solve the system by Gaussian elimination. -60x +45y = 12 20x - 15y = -4
For the following exercises, use the matrices below to perform the indicated operation if possible. If not possible, explain why the operation cannot be performed.3D + 4E -5 A = [²2 -²] · B =[
For the following exercises, solve each system by Gaussian elimination. x+y+z=0 2x - y + 3z=0 x-z=1
For the following exercises, find the decomposition of the partial fraction for the repeating linear factors.5x2 + 20x + 8/2x(x + 1)2
For the following exercises, solve the system of linear equations using Cramer’s Rule. 6x-3y=2 -8x+9y=-1
For the following exercises, solve the system using the inverse of a 2×2 matrix. 5x − 6y = −614x + 3y = −2
For the following exercises, use the inverse of a matrix to solve the systems of equations. 1 100 3 100 X -X 9 100 -X 3 100+ 7 100 9 100 1 20 1 100 9 100 z = -49 z = 13 -z = 99
For the following exercises, graph the inequality. y > x2 − 1
For the following exercises, solve each system by addition. 7x+6y= 2 -28x24y = -8
For the following exercises, solve the system by Gaussian elimination. 3x+4y=12 -6x - 8y=-24
For the following exercises, use any method to solve the nonlinear system. x-2=9 y=3
For the following exercises, use the matrices below to perform the indicated operation if possible. If not possible, explain why the operation cannot be performed.2C + B -8 -9 6 A = [² - ²]- ³ =
For the following exercises, solve each system by Gaussian elimination. 3x + 2y5z = 6 5x - 4y + 3z=-12 4x + 5y-2z = 15
For the following exercises, find the decomposition of the partial fraction for the repeating linear factors.5x + 14/2x2 + 12x + 18
For the following exercises, find the multiplicative inverse of each matrix, if it exists. 1 4 7 2 5 6 8 9 3
For the following exercises, solve the system of linear equations using Cramer’s Rule.5x − 4y = 2−4x + 7y = 6
For the following exercises, solve the system of nonlinear equations.x2 + y2 = 4y − x2 = 3
For the following exercises, solve each system by addition. -x+2y=-1 5x 10y = 6
For the following exercises, use the inverse of a matrix to solve the systems of equations.4x − 5y = −50−x + 2y = 80
For the following exercises, use any method to solve the nonlinear system. x² - y² = 9 x=3
For the following exercises, solve the system by Gaussian elimination. -5x+8y=3 10x+6y=5
For the following exercises, use the matrices below to perform the indicated operation if possible. If not possible, explain why the operation cannot be performed.4A + 5D -5 A = [²2 -²]· B =[ 2₂
For the following exercises, find the decomposition of the partial fraction for the repeating linear factors.5 − x (x − 7)2
For the following exercises, solve each system by Gaussian elimination. x+y+z=0 2x -y + 3z=0 0=2-x
For the following exercises, find the multiplicative inverse of each matrix, if it exists. 2|11|11|- 7|12|11|- 0011 1111|-
For the following exercises, solve each system by addition. 7x - 2y = 3 4x + 5y = 3.25
For the following exercises, use the matrices below to perform the indicated operation if possible. If not possible, explain why the operation cannot be performed.A + B − C -8 7
For the following exercises, use any method to solve the nonlinear system. x² + y² = 9 y=3-x²
For the following exercises, solve the system of linear equations using Cramer’s Rule. 2x − 3y = −14x + 5y = 9
For the following exercises, solve each system by Gaussian elimination. 5x - 3y + 4z = -1 -4x+2y3z0 -x+ 5y +7z=-11
For the following exercises, solve the system by Gaussian elimination. -4x-3y=-2 3x-5y=-13
For the following exercises, find the determinant. (0) 0 바 베비 a. ∞|11|1 Al
For the following exercises, solve the system of nonlinear equations.x2 + y2 = 25y = x2 + 5
For the following exercises, find the multiplicative inverse of each matrix, if it exists. 1-2 -4 [ 1 3] 8-12 4 2]
For the following exercises, use Gaussian elimination to solve the systems of equations.2x + y + z = −3x − 2y + 3z = 6x − y − z = 6
For the following exercises, use any method to solve the system of nonlinear equations. 2x³ - x² = y x² + y = 0
For the following exercises, find the decomposition of the partial fraction for the repeating linear factors.−24x − 27/(6x − 7)2
For the following exercises, solve each system by addition. 5x - y = -2.6 -4x - 6y= 1.4
For the following exercises, solve each system by Gaussian elimination. x+y+z=14 2y + 3z = -14 -16y24z=-112
For the following exercises, solve the system by Gaussian elimination. 2x + 3y = 12 4x + y = 14
For the following exercises, find the determinant. 2 -1.6 1.1 3 -9.3 0 3.1 -8 2
For the following exercises, use the matrices below to perform matrix multiplication.CB 3 6 A=[ ²3 2-8-1-40 [ B = ]c= 4 10] -2 5 2 -3 12] 1 6 | D = 9 9] ن بن من 3 8 -10
For the following exercises, solve the system of nonlinear equations.x2 + y2 = 16y = x − 8
For the following exercises, use Gaussian elimination to solve the systems of equations. x − 6y = 42x − 12y = 0
For the following exercises, find the multiplicative inverse of each matrix, if it exists. 1 9 2 5 4-2 -3 6 7
For the following exercises, solve the system by Gaussian elimination. 6x + 2y = -4 3x + 4y = -17
For the following exercises, perform the given matrix operations.Rewrite the augmented matrix as a system of linear equations. 1 0 3 127 -2 49-5 -6 1 2 8
For the following exercises, find the decomposition of the partial fraction for the repeating linear factors.−24x − 27/(4x + 5)2
For the following exercises, solve each system by addition. 6x - 5y=-34 2x+6y=4
For the following exercises, use any method to solve the system of nonlinear equations. x² - x² = y x² + y = 0
For the following exercises, use the matrices below to perform matrix multiplication.DC A=[-²₂ 5], B =[ 3 3 3 6 -8 0 4 10] 2 TP-6 6, D = 9 9 12].C=[-2 5 -3 33 0 8 12] 1 -10]
For the following exercises, solve the system of nonlinear equations.y = x2 − 4y = 5x + 10
For the following exercises, find the determinant. 1.1 -4 4.1 2 0 -0.4 -1 0 2.5
For the following exercises, solve each system by Gaussian elimination. 10x + 2y 14z = 8 -x-2y-4z=-1 -12x-6y + 6z= -12
For the following exercises, find the multiplicative inverse of each matrix, if it exists. 1 -3 -2 2 4 -4 -1] 1 -5.
For the following exercises, find the decomposition of the partial fraction for the repeating linear factors.7x + 14/(x + 3)2
For the following exercises, solve the system by Gaussian elimination. 2x - 3y=9 5x + 4y = 58
For the following exercises, solve each system by addition. -2x + 5y = -42 7x + 2y = 30
For the following exercises, use any method to solve the system of nonlinear equations. 9x² + 25y² = 225 (x − 6)² + y² = 1

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