Simplify (x - y + 1) - (x + y - 1).
2x - 2y + 2
-2y + 2
2y - 2
-2x + 2y

Answers

Answer 1

Answer: $(x - y + 1) - (x + y - 1) \n \n x - y + 1 - x - y + 1 \n \n (x - x) + (-y -y) + (1 + 1) \n \n -2y + 2 \n \n Answer: \fbox {-2y + 2}$

Answer 2

Answer:

Answer:The answer is -2y+2

Step-by-step explanation: hope this works

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If you can only use 3 of these numbers once to find a sum of 30 without subtracting or adding additional numbers, what three numbers would you use out of 1, 3, 5, 7, 9, 11, 13, and 15? ()+()+()=30

Answers

Answer:

The correct answer is

It is impossible to add odd numbers (1, 3, 5, 7, 9, 11, 13, and 15) and odd number of times (3) to get an even number (30)

Step-by-step explanation:

1, 3, 5, 7, 9, 11, 13, and 15 are all odd numbers and 30 is an even number

When odd numbers are added even times the answer is always even for example 3 + 5 = 8, and when odd numbers are added odd times the answer is always odd for example 1 + 5 + 7 = 13

It is not possible to add three odd numbers to get an even number

Where x = odd therefore x + 1 = even = y say

hence 2 × x = 2×(y-1) = 2·y - 2 = even number

Also 3 × x = (3y -3) = odd number

Answer: The answer is 7+(3+5)+15 = 30

3 is what percent of 5

Answers

Answer: 60%

Step-by-step explanation:

2.5% i’m pretty sure

Given: y // z Prove: measure of angle 5 plus measure of angle 2 plus measure of angle 6 equals 180 degrees

Answers

Step-by-step explanation:

Given: y // z Prove: measure of angle 5 plus measure of angle 2 plus measure of angle 6 equals 180 degrees

Let e = 15. What is the value of 2e?

A.
13

B.
17

C.
30

D.
215

Answers

2e = 2 X (15)

2 X 15 = 30

Answer: C. 30

Help! Thanks!!!!!!!!!!!

Answers

The standard form is (x - h)2 = 4p (y - k), where the focus is (h, k + p) and the directrix is y = k - p. If the parabola is rotated so that its vertex is (h,k) and its axis of symmetry is parallel to the x-axis, it has an equation of (y - k)2 = 4p (x - h), where the focus is (h + p, k) and the directrix is x = h - p.

Estimate the value of the square root of 15.9÷3.8