Question

SAMPLE:


Part 1: The solution is x > 5 and x<=9.
Part 2: There would be an open circle on 5 and a closed circle on 9.
Part 3: The shading is between the two numbers.
Be sure that you have included all three parts when answering each question.
"Greater than or equal to" would be typed >=.
"Less than or equal to" would be typed <=.
1.
d - 1 > -3 and d + 2 < 5

2.
-3k + 7 > -5 and -7k + 5 < -2

3.
-5 < 2y - 3 < 23

4.
x - 4 < 5 or x + 2 > 15

5.
5x - 4 > 6 or -4x + 5 > 1

Answer 1

What's the question?

Answer 2

There's no question here, what is it asking for??

Answer 3

I have no idea
that's why my teacher said for out work, exact words

Answer 4

i think its asking for the solution of the equations

Answer 5

Oh you need to do part 1-3 for each problem? Ok...

Part 1. Solve for d in each equation. Part 2 If it's "or equals" then it's a closed circle, otherwise it's an open circle. Part 3 Just look at the directions of the signs to see what kind of space it is.

I'll do the first one

1. d - 1 > -3 and d + 2 < 5
Part 1 d > -2 and d < 3
Part 2 Open circle at -2 and open circle at 3
Part 3 The area is contained in between -2 and 3 (larger than -2 but smaller than 3)

Answer 6

how do u kno if the circle is either open or closed?

Answer 7

Open means it doesn't include that point. Since it's d>-2, it's any number larger than -2 but not including -2.

Answer 8

so # 2 is k>4 k<1 open circle at 1 and open circle at 4
the area is between 1 and 4 (larger than 1 and smaller than 4)
right?

Answer 9

It's actually k<4 and k>1 because when you divide by a negative number you switch the direction of the inequality.