Algebra Answers

Which of the following statements is correct according the equation: x2-3.27x+215=0

A. x=26 and x=28 are soluttions

B.x=25 and x=29 are solutions

C. the equation has one and only one solution

The solutions to the inequality (2x+3)^1/2 >lxl exist within which interval?

A. the interval -3/2<x<-1

B. the interval -x>3/2

C. the interval -3/2<x<3

Graphs of the two functions y=2^x and y=(1/2)^x

A. Intersect at a point of negative abscissa

B. Intersect at a point of positive abscissa

C. Don't intersect

D. Intersect at a point of zero abscissa

How many solutions exist for the equation: x-4=3(2-x)^1/2 ?

A. none

B. exactly one

C. exactly two

D. more than two

Which of the following pairs of lines are parallel?

A.y=2x-4y and y=3x+5

B.6x+3y=1 and 4x+2y=1

C.x=3 and y=-4

D.3x-2y=5 and 2x+3y= 4

Evaluate α given that α= [log(e²e^log2)/2]^1/2 .

Assume that the sum of 100 integers n₁, n₂, .... is greater than 100. So

A. All the numbers n₁, n₂, .... have to be greater than or equal to 1.

B. If one of the numbers n₁, n₂, .... is lower or equal to -100, so at least one of the remaining numbers must be greater than 2

C. If between the numbers Solutions of the inequality [(4x²-3x-1)^1/2]>= 2x-3 are?

Solutions of the inequality [(4x²-3x-1)^1/2]>= 2x-3 are?

The real solutions of the inequality log₂(x²-1)-log₂(x-2)>2 are?

We consider a=(1)/[(2/3)+(5/7)]. Which of the following statements is correct?

A. 0.5<a<0.7

B. 0.7<a<1

C.1<a<1.2

D.1.2<a<1.5