If x and y are positive and sqrtx = y, which of the following must be equal 0?

A) x-y

B) x- sqrty

C) y-2x

D) y- x^2

E) y^2 -x

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Tag: algebra

# If x and y are positive and sqrtx = y, which of the following must be equal 0?

# If 13≤31-2x≤39, which of the following represents all possible values of x?

# Which of the following must be negative whenever x>y>0?

# if x^2 – y^2 = x- y and x<y, what is the average (arithmetic mean) of x and y?

# In a certain apartment building, residents are allowed to own exactly one dog, exactly one cat, or one dog and one cat…

# Which of the following equations, together with 2x + y= 8, results in a system of equations with exactly one solution?

# New sample questions: Math part 6

# Solving for expressions practice drill

# A little algebra practice for y’all

# Weekend Challenge – Epic playlist

# “Is there a math way?”

# Corresponding coefficients in equivalent polynomials

# Direct and Inverse Proportionality (Variation)

# Parabola Schmarabola

# Plain-old (non-symbol) function questions

If x and y are positive and sqrtx = y, which of the following must be equal 0?

A) x-y

B) x- sqrty

C) y-2x

D) y- x^2

E) y^2 -x

If 13≤31-2x≤39, which of the following represents all possible values of x?

(A) -9≤x≤4

(B) -4≤x≤4

(C) -4≤x≤9

(D) 9≤x≤22

(E) 22≤x≤35

How should I go about doing this question, and what’s the quickest way? Thanks for your help!

Which of the following must be negative whenever x>y>0?

A) x^2 -4xy + y^2

B) x^2 -2xy – y^2

C) x^2 – xy -2y^2

D) y^2 -x^2 -xy

E) y^2 -x^2 +xy

if x^2 – y^2 = x- y and x<y, what is the average (arithmetic mean) of x and y?

A) 0

B) 1/2

C) 1

D) x/2

E) y/2

In a certain apartment building, residents are allowed to own exactly one dog, exactly one cat, or one dog and one cat. No other pets are allowed. There are 22 cats and 17 dogs in the building. If there are 25 apartments that contain only one dog or one cat, how many apartments, in total, contain pets?

(A) 27

(B) 32

(C) 35

(D) 39

(E) 42

Thank you. 🙂

Which of the following equations, together with 2x + y= 8, results in a system of equations with exactly one solution? A) -2x – y= -8 B) x+2y=0 C)2x+y=0 D) 2x+y=14 E) 4x+2y= 16

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How’s everyone else doing on this quiz? ...

How’s everyone else doing on this quiz?

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