Urgent assignment!
Quarter of grade
Pre-Algebra

True or false: 1 and 3 are true 2 and 4 are false

Step-by-step explanation:

4-2(3+7)=4-2*3-2*7
PEMDAS
2(3+7)=20

4-20=3-2*3-2*7
4-20=3-6-14
-16 = -16
True
4-2(3+7)=4+-2*3+2*7 = False (-16=12)
4-2(3+7)=4+-2*3+-2*7
+-2 = -2
4-20=3-2*3-2*7
4-20=3-6-14
-16=-16
True
Next section:
1. 8x-9-12x+5
-4x-4 (Must be equivalent to)
(8x-9)-12x+5

Distribute
-4x-4
2. 8x(-9-12x)+5
8x-9(-12x+5)
8x(-9-12x+5)
Next Section:

8-3(4-9x)
27x-4 (Must be equivalent to)
1. Jada is correct because she properly used PEMDAS, She multiplied the parenthesis first, then distributed.
2. Noah had an error in the 2nd step, instead of multiplying the parenthesis, he subtracted the 3 from 8 then multiplied the parenthesis
Lin made a mistake by starting with the numbers inside of the parenthesis, which multiplying should of went first.
Andre made a mistake when he multiplied -3 by -9x a negative multiplied by a negative makes a positive.

I hope this helps!

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

the answer to this would be 5x^3-6x^2-24 over 3x^2

hope this if needed hmu