D=a=-3? was that written correctly?
Answer:
x>-9
Explanation:
move constant to the right
x+2>-7
calculate
x>-2-7
x>-9
the reason you flip the sign is because you multiplied with a negative number. always flip sign if the number you are either multiplying or dividing by is a negative. if it is positive then keep the sign the way it is.
Considering the formulas for the area and the perimeter of the rectangle, the one with the desired measures is given as follows:
a length of 3 units and a width of 4 units.
<h3>What are the area and the perimeter of a rectangle?</h3>
Considering a rectangle of length l and width w, we have that:
For a rectangle with a length of 3 units and a width of 4 units, we have that:
- A = 3 x 4 = 12 square units.
Hence it is the correct option.
More can be learned about the area and the perimeter of a rectangle at brainly.com/question/10489198
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Answer:
x=8
Step-by-step explanation:
a
x+2=7x-3
x+7x=3-2
8×= 1
×=8
b
13y+25=8y+5
13y+8y= 25+5
21y=30
y= 30-21
y=11
If nine plus 10 is 21 and the square root of the sun is blank
