C is 2 because you have to move the 5 so you add 5 to 13 which is 18 then divide both sides by 9 so it's 2
Answer:
2 step equation problems.
Step-by-step explanation:
So you need to replace -3 into that to add -18 on both sides and that gives you the negative number is -20 and then you add the -5r+-3r less than or equal to -20. Now, negative -5 +3 = -8 + -20 = -28. r=-28.
Answer:
in the 1st row, one x^2 is positive while the other is negitive, making the total zero. also in the top row 8x+(-6x) = 2x, but in the 2nd row is says -2x, showing they are not the same. Also there is no -1/2 in the 2nd row like there is in the 1st row
Step-by-step explanation:
Answer:
1, 4, 9, 16, 25, etc
Step-by-step explanation:
a perfect square is a whole number multiplied by itself. it can be written with the notation ^2
to find a perfect square, simply square or bring to the 2nd power, any whole number
for example 9^2
this means that 9 is multiplied by ITSELF 2 times, it is NOT 9*2
it can also be written as 9*9=81
hope this helps, if anything confuses you feel free to ask ♡
