9514 1404 393
Answer:
7x^3 +11x^2 -5x -8
Step-by-step explanation:
Combine like terms.
(4x^3+6x^2+2x^2-3) + (3x^3+3x^2-5x-5)
= (4 +3)x^3 +(6 +2 +3)x^2 +(-5)x + (-3 -5)
= 7x^3 +11x^2 -5x -8
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Noting that the first expression contains two x^2 terms, we wonder if you actually want the sum ...
(4x^3+6x^2+2x-3) + (3x^3+3x^2-5x-5)
= (4 +3)x^3 +(6 +3)x^2 +(2 -5)x +(-3 -5)
= 7x^3 +9x^2 -3x -8
Answer:
x = 91/11
Step-by-step explanation:
1. x - 3/11 = 8
2. add 3/11 to both sides of the equation
3. x = 91/11
Answer:
80%
Step-by-step explanation:
60/75 = 4/5 = 0.80
Therefore, the percentage of change is 80%.
Step 1: put the numbers in order form least to greatest
25,40,42,42,43,43,52,60,60,65
step 2: find the median
step 3: place parentheses around the numbers from above and below the median
(25,40,42,42,)43,43,(52,60,60,65)
step 4: find the median from the below parentheses and from the parentheses above
bellow = 41 bc 40 and 42 cant be the median so between those two is 41
above = 60
step 5: subtract below and above medians
60 - 41 = 19
so 19 is your answer
