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MATH / Answer each of the following questions yes or no, and add up the numbers…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

problem

Answer each of the following questions yes or no, and add up the numbers corresponding to the questions for which the answer is yes. For instance, if the answer to all six questions were 'yes,' then the answer would be 1+2+3+4+5+6=211+2+3+4+5+6=21. 1. Is 23x\frac{2}{3x} equivalent to 2x3\frac{2x}{3}? 2. Is 1−h2h\frac{1-h}{2h} equivalent to h−12h\frac{h-1}{2h}? 3. Is −(u+u2)-(u+u^2) equivalent to −u−u2-u-u^2? 4. Is −(3+y)-(3+y) equivalent to −3+y-3+y? 5. Is j2\frac{j}{2} equivalent to 12j\frac{1}{2}j? 6. Is x+y+zx+y+z equivalent to y+x+zy+x+z?
Plain-text mathematical notation (without MathML)
Answer each of the following questions yes or no, and add up the numbers corresponding to the questions for which the answer is yes. For instance, if the answer to all six questions were 'yes,' then the answer would be 1+2+3+4+5+6=21.

1. Is (2)/(3x) equivalent to (2x)/(3)?

2. Is (1−h)/(2h) equivalent to (h−1)/(2h)?

3. Is −(u+u²) equivalent to −u−u²?

4. Is −(3+y) equivalent to −3+y?

5. Is (j)/(2) equivalent to (1)/(2)j?

6. Is x+y+z equivalent to y+x+z?
Original LaTeX notation
Answer each of the following questions yes or no, and add up the numbers corresponding to the questions for which the answer is yes. For instance, if the answer to all six questions were 'yes,' then the answer would be $1+2+3+4+5+6=21$.

1. Is $\frac{2}{3x}$ equivalent to $\frac{2x}{3}$?

2. Is $\frac{1-h}{2h}$ equivalent to $\frac{h-1}{2h}$?

3. Is $-(u+u^2)$ equivalent to $-u-u^2$?

4. Is $-(3+y)$ equivalent to $-3+y$?

5. Is $\frac{j}{2}$ equivalent to $\frac{1}{2}j$?

6. Is $x+y+z$ equivalent to $y+x+z$?

level

Level 4

type

Prealgebra

Discussion

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Source and history

task_id
962a1f3d-6c9f-5422-8df9-15e297af3816
task_key
prealgebra--test--962a1f3d-6c9f-5422-8df9-15e297af3816
task_revision_id
1
config / split
prealgebra / test

Official source

initial import