A: When they were distributing the 2, they didn’t distribute it to the 5. The correct answer would be 6x + 10
B: They didn’t distribute the 3 to the -3. The answer should be 6x^2 - 9
C: They didn’t distribute the -3 to the -4. The correct answer should be -9x + 12
D: The -20 should be a positive 20 because -4 x -5= 20. The correct answer should be -16x + 20
E: The 12 should be a -12 because -2 x 6= -12. The correct answer should be -8x^2 -12
F: They didn’t distribute the -9 correctly. The correct answer should be -36x^3 + 45x -54
Hope this helps!
-Grace
Step-by-step explanation:
let the number be x
12x-59=x²-2
12x-x²=59-2
12x-x²=57
12x-57=x²
x=root of 12x-57
Answer:
A)SA= 2(1/2bh)+(lw)+(lh)+(wh)
= 2(1/2*7*24)+(22*24)*(7*22)+(22*24)
= 2(84)+528+154+528
= 168+528+154+528
=1378m^2
B) V= πr^2h
= π*10^2*20
= π*100*20
= 6283.2cm^3
To find perimeter, all you need to do is add each side of the shape together. In this case you have a quadrilateral. Since you did not attach a picture of the quadrilateral, I cannot give you the exact answer that you are looking for. But, I do know that you will have 4 numbers. Simply add them up and the sum will be your perimeter.
Probability helps us to know the chances of an event occurring. There are 8 outcomes.
<h3>What is Probability?</h3>
Probability helps us to know the chances of an event occurring.
Let's suppose someone flips a fair coin three times.
1. The outcomes of the coins are,
Therefore, there are 8 outcomes.
2. The probability of getting exactly one tail is,
P(X=1) = 2/8 = 1/4
3. The probability of getting at most two tails is,
P(X≤2) = P(X=1) + P(X+2) = 1/4 + 1/2 = 3/4
Learn more about Probability:
brainly.com/question/795909
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