Answer:
it would be D
Step-by-step explanation:
all other choices have a repeating x value.
4/5= 0.8
12 4/5= 12.8
Number in ones place: 2
Number in tenths place: 8
Since 8>5, the number rounds up.
Final answer: 13
The solution to the binomial expression by using Pascal's triangle is:



<h3>How can we use Pascal's triangle to expand a binomial expression?</h3>
Pascal's triangle can be used to calculate the coefficients of the expansion of (a+b)ⁿ by taking the exponent (n) and adding the value of 1 to it. The coefficients will correspond with the line (n+1) of the triangle.
We can have the Pascal tree triangle expressed as follows:
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
From the given information:
The expansion of (3x-4y)^11 will correspond to line 11.
Using the general formula for the Pascal triangle:

The solution to the expansion of the binomial (3x-4y)^11 can be computed as:



Learn more about Pascal's triangle here:
brainly.com/question/16978014
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Step-by-step explanation:
= (8x² + 9) - (3x² + 2x + 5)
= 8x² + 9 - 3x² - 2x - 5
= 5x² - 2x + 4
Answer:
45%
Step-by-step explanation:
18+22=40
18/40=0.45
Then times it by 100 to make it a percentage
0.45x100=45%