3 years ago

Why does the inequality sign have to be flipped when multiplying and dividing by a negative number like in −2x > 10?

1 answer:

5 0

Answer:

When you multiply both sides by a negative value you make the side that is greater have a "bigger" negative number, which actually means it is now less than the other side! This is why you must flip the sign whenever you multiply by a negative number.

You might be interested in

Lines m and p are perpendicular. if the slope of line m is -3 what is the slope of line p

ivann1987 [24]

For two lines to be perpendicular, their slopes must be negative reciprocals of one another, mathematically:

m1*m2=-1, in this case our reference line has a slope of -3 so:

-3m=-1 divide both sides by -3

m=-1/-3

m=1/3

So the perpendicular line will have a slope of 1/3

4 0

3 years ago

In constructing an open rectangular box from 2727 ft squaredft2 of material, what dimensions will result in a box of maximum v

zmey [24]

Idk I can understand how u do the

4 0

3 years ago

HELP PLZ AGAIN. Same material. It is still timed. Will give 50 pts and brainly. This is vital to my math grade. Time is on the e

Sliva [168]

Answer:

slope-intercept form: y = x+2

The slope is 1

y-interspet is -2

Step-by-step explanation:

hope it helps

7 0

3 years ago

36 first-graders and 14 other students attended a school assembly. What percentage of the students at the assembly were first-gr

dimaraw [331]

Answer: 18%

Step-by-step explanation: Add 36 + 14 = 50

Then 36*50/100=18

5 0

2 years ago

What slope does a vertical line have

Anika [276]

The slope on a vertical line will be 0

5 0

3 years ago

Read 2 more answers