Hi, I need someone's help to see I have done it properly or not. Would greatly appreciate it.
3)If 12r < 96 and 3r > -9, then r could be any of the following EXCEPT:
a)-2
b)0
c)3
d)7
e)12
4)If (a+3)/(2) +a+3=3 then a=?.
a)-3
b)-1
c)0
d)1
5)If b not equal c, (ab-ac)/(c-b)= a
a)1
b)0
c)-1
d)-a
7)If x > y > z, then all of the following could be true EXCEPT:
a)y + z < x
b)2x > y + z
c)2z > x + y
d)xy > yz
e)x + y > 2y + z
9)If 2x-16 > 3x- 19, then which of the following must be true?
a)x > 3
b)x < 3
c)x < - 3
d)x > 7
e)x < 16
______________________________________________________
1) Which of the following is equivalent to 4b2 + 24b + 36 ?
a)4(b + 3)
b)4(b + 3)(b + 3)
c)4(b + 3)(b + 9)
d)4b(b + 3)(b + 3)
e)4b + b(b + 3)
2) Which of the following is equivalent to 4b^2 + 24b + 36 ?
a)4(b + 3)
b)4(b + 3)(b + 3)
c)4(b + 3)(b + 9)
d)4b(b + 3)(b + 3)
e)4b + b(b + 3)
3) If - 3x - 4 = 0, then (x + 2)(y - 2) - x - y =
a)xy - 3y + x - 4
b)y(x + 1)
c)x(y + 1)
d)-y(x - 1)
e)-4
4) Twice k added to f is 19. Three k less than f is one less than zero. What is the value of k ?
a)3.8
b)4
c)8
d)11
e)12
4) If a2 - 25 < 0, then which of the following must be true?
a)a < - 5
b)a > 5
c)a > 25
d)a < - 5 or a > 5
e)-5 < a < 5
5) What is the value of q if qr - qs = - 24 and r - s = - 4 ?
a)- 6
b)- 4
c)4
d)6
e)It cannot be determined from the information given.
6) The Kinetic energy K, in kilogram-meters squared per second squared, is represented by the equation k=1/2 MV^2, where m is the mass of a particle, in kilograms, and v is its velocity, in meters per second. If the mass of a particle in kilograms is twice its velocity in meters per second and K = 64 kilogram-meters squared per second squared, what is the mass of the particle in kilograms?
a)4
b)6
c)8
d)16
e)64
7) If 7x - 3y = 35 and 10x - 4y = 51, what is the value of x + y ?
a)3
b)3.5
c)6.5
d)7.8
e)10
8) What is n in terms of w and r if n/-r+w = w + r and w^2 - r^2 = 6 + r, where r not equal w ?
a)r + w
b)w - r
c)r + 6
d)w - r + 6
e)(r - w )(r + w)
9) If 2a + b = -8 and -4a + 2b = 16 what is the value of 2b ?
a)-8
b)-4
c)0
d)2
e)4
10) Let *x* = x^2- 1 and $y$ = 6y^2 - (*y*) for all integers x and y. If m > 0 and *m* = 0, what is the value of $m$?
a)-6
b)-1
c)0
d)1
e)6
3)If 12r < 96 and 3r > -9, then r could be any of the following EXCEPT:
a)-2
b)0
c)3
d)7
e)12
4)If (a+3)/(2) +a+3=3 then a=?.
a)-3
b)-1
c)0
d)1
5)If b not equal c, (ab-ac)/(c-b)= a
a)1
b)0
c)-1
d)-a
7)If x > y > z, then all of the following could be true EXCEPT:
a)y + z < x
b)2x > y + z
c)2z > x + y
d)xy > yz
e)x + y > 2y + z
9)If 2x-16 > 3x- 19, then which of the following must be true?
a)x > 3
b)x < 3
c)x < - 3
d)x > 7
e)x < 16
______________________________________________________
1) Which of the following is equivalent to 4b2 + 24b + 36 ?
a)4(b + 3)
b)4(b + 3)(b + 3)
c)4(b + 3)(b + 9)
d)4b(b + 3)(b + 3)
e)4b + b(b + 3)
2) Which of the following is equivalent to 4b^2 + 24b + 36 ?
a)4(b + 3)
b)4(b + 3)(b + 3)
c)4(b + 3)(b + 9)
d)4b(b + 3)(b + 3)
e)4b + b(b + 3)
3) If - 3x - 4 = 0, then (x + 2)(y - 2) - x - y =
a)xy - 3y + x - 4
b)y(x + 1)
c)x(y + 1)
d)-y(x - 1)
e)-4
4) Twice k added to f is 19. Three k less than f is one less than zero. What is the value of k ?
a)3.8
b)4
c)8
d)11
e)12
4) If a2 - 25 < 0, then which of the following must be true?
a)a < - 5
b)a > 5
c)a > 25
d)a < - 5 or a > 5
e)-5 < a < 5
5) What is the value of q if qr - qs = - 24 and r - s = - 4 ?
a)- 6
b)- 4
c)4
d)6
e)It cannot be determined from the information given.
6) The Kinetic energy K, in kilogram-meters squared per second squared, is represented by the equation k=1/2 MV^2, where m is the mass of a particle, in kilograms, and v is its velocity, in meters per second. If the mass of a particle in kilograms is twice its velocity in meters per second and K = 64 kilogram-meters squared per second squared, what is the mass of the particle in kilograms?
a)4
b)6
c)8
d)16
e)64
7) If 7x - 3y = 35 and 10x - 4y = 51, what is the value of x + y ?
a)3
b)3.5
c)6.5
d)7.8
e)10
8) What is n in terms of w and r if n/-r+w = w + r and w^2 - r^2 = 6 + r, where r not equal w ?
a)r + w
b)w - r
c)r + 6
d)w - r + 6
e)(r - w )(r + w)
9) If 2a + b = -8 and -4a + 2b = 16 what is the value of 2b ?
a)-8
b)-4
c)0
d)2
e)4
10) Let *x* = x^2- 1 and $y$ = 6y^2 - (*y*) for all integers x and y. If m > 0 and *m* = 0, what is the value of $m$?
a)-6
b)-1
c)0
d)1
e)6
