All grade answer math problems are solved here from different topics. A
large number of objective answer math problems are solved here to help
the students quickly to test their knowledge and skills on different
topics.
7. Simplify: (2x - 4) - (6x + 6)
Solution:
(2x - 4) - (6x + 6)
= 2x - 4 - 6x – 6
= 2x – 6x – 4 – 6
= -4x – 10
= -2(2x + 5)
Answer: -2(2x + 5)
8. Simplify:(8+4x)/4x
Solution:
(8+4x)/4x
= 4(2 + x)/4x
[Cancel 4 from the numerator and denominator]
= (2 + x)/x
Answer: (2 + x)/x
9. Decide whether the lines are parallel, perpendicular or neither.
x + 4y = 7 and 4x – y = 3
Solution:
x + 4y = 7
4y = -x + 7
y = (-1/4) x + 7
Slope of the equation x + 4y = 7 is -1/4.
Again, 4x – y = 3
y = 4x – 3
Slope of the equation 4x – y = 3 is 4.
Since multiplying both the slope of the equation = -1/4 × 4
= -1
Therefore, the given two equations are perpendicular to each other.
Answer: Perpendicular
10. Simplify: 3x – 5 + 23x – 9
Solution:
3x – 5 + 23x – 9
= 3x + 23x – 5 – 9
= 26x – 14
= 2(13x – 7)
Answer: 2(13x – 7)
13. Fill in the blank:
(a) The point with coordinates (0,0) is called ........of a rectangular coordinate system.
(b) To find the x-intercept of a line, we let....equal 0 and solve for
......; to find y-intercept, we let ......equal 0 and solve for.......
Solution:
(a) The point with coordinates (0,0) is called origin of a rectangular coordinate system.
(b) To find the x-intercept of a line, we let y equal 0 and solve for x ; to find y-intercept, we let x equal 0 and solve for y .
14. Name the quadrant, if any, in which each point is located.
(a) (1, 6)
(b) (-4, -2)
Solution:
(a) (1, 6) --------- I Quadrant.
(b) (-4, -2) --------- III Quadrant.
If students have any queries understanding the questions and answers given in the answer math problems, please fill-up the below comment box to convey your message, so that we can help you.
● Math Questions Answers
● Help with Math Problems
● Answer Math Problems
● Math Problem Solver
● Math Unsolved Questions
● Math Questions
● Math Word Problems
● Word Problems on Speed Distance Time
● Algebra Word Problems – Money
Math Problem Answers Index
From Answer Math Problems to HOME PAGE
Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.
May 22, 24 06:21 PM
May 22, 24 06:14 PM
May 22, 24 05:17 PM
May 22, 24 03:49 PM
May 22, 24 02:33 PM
New! Comments
Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.