When solving an inequality, when does the sign change?

Answers

Answer 1

Answer: The sign changes when you MULTIPLY or divide by a negative on both sides :)

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Solve for xX^2+6x+9=20
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A new roll of wrapping paper has 6 5/8 yards of paper. Drew used 2 1/6 yards from the roll to wrap a gift. Which equation most closely estimates the number of yards of wrapping paper left on the roll?
I need help with 1,3,4,5,6,7,10 and the top words in the box are to be used to complete the sentences

Sole at least one. Thanks!

Answers

Answer:

the answer to 43 is 2/5 = 4/10

Is 96 fl oz greater than 8 pt

Answers

96 fl oz is greater than 8 pt :3

Yes, 96 fl oz is greater than 8 pt.

Tom has a collection of 30 CDs and Nita has a collection of 18 CDs. Tom is adding 1 CD per month to his collection while Nita is adding 5 CDs per month to her collection. After how many months will Tom and Nita have the same number of CDs? Show your work

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3 months for nita and 2 month for tom. Hope this helped.

Jeremy drew a polygon with four right angles and four sides with the same length. What kind of polygon did Jeremy draw?

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A polygon with four sides are called quadrilaterals. Main types of quadrilarerals are:

irregular quadrilateral;
parallelogram -quadrilateral with two pairs of parallel sides;
trapezoid - quadrilateral with at least one pair of parallel sides;
rhombus - quadrilateral whose four sides all have the same length;
rectangle - quadrilateral with four right angles;
square - regular quadrilateral, which means that it has four equal sides and four equal right angles;
kite - quadrilateral whose four sides can be grouped into two pairs of equal-length sides that are adjacent to each other.

According to this classification, Jeremy drew square that is rectangle with equal sides or rhombus with all right angles.

Answer: square.

Jeremy drew a square or a diamond depending on perception. If all four sides are equal and all 4 angles are exactly right angles then the polygon is even on all sides. This type of shape will result in a square if a looking at a flat surface on top and bottom. If the shape is placed with an angle at the top and bottom it could be perceived as a diamond.

Solve the system of equations by graphing on your own paper. What is the x-coordinate of the solution? y = x + 7
y = -2x - 11

Answers

y = x + 7
y = -2x - 11

x + 7 = -2x - 11
3x + 7 = -11
3x = -18
x = -6

The x-coordinate of the solution is -6.

I have attached a graph of the two equations since the question really wanted you to graph it and then find the answer.

What is the surface area of a cube that has a side length of 5 feet?