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3241004551 [841]
3 years ago
8

Which set of coefficients of the terms in the expansion of the binomial (x+y)^3 is correct ?

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
7 0
The expansion of (x+y)^3 is x^3 +3x^2×y+3x×y^2+y^3 the coefficients are 1,3,3,1
BigorU [14]3 years ago
4 0
We are technically FOILing this out... with a power of 3.

(x+y)(x+y)(x+y)

So we can first factor out the first two "x+y"s.

( x^{2} +2xy + y^{2} ), multiplied by the last "x+y".

x^{3} +3 x^{2} y +3x y^{2} + y^{3}

Coefficients are the number that comes in front of a variable. 

In this case, 1 comes in front of x^{3}, 3 comes in front of x^{2} y, 3 comes in front of x y^{2}, and 1 comes in front of y^{3}.

Thus: 1, 3, 3, 1.
         Answer Choice A
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If A, B, and C are collinear, and AB = 18, AC = 41, what is a possible measure of BC?
ikadub [295]

Step-by-step explanation:

As ANC are collinear,

AB+BC=AC

so,

18+BC = 41

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BC = 23 is the answer.

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By bike, it’s possible to travel 108 miles in 6 days. What’s the unit rate?
lbvjy [14]

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2 years ago
First Data Corp. records indicate that in 2005, 43% of adult email users received a phishing email. A phishing email replicates
ra1l [238]

Answer:

P(x) = 45/100 = 0.45

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If there are ranges of probability values, we construct a probability distribution table. This is not necessary in the case of one probability value(45%)

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5 0
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A cylinder has a height of 12 feet and a radius of 5 feet. What is its volume? Use ​ ≈ 3.14 and round your answer to the nearest
beks73 [17]

Answer: The volume is 942 cubic feet   , 942 ft^3

Step-by-step explanation:

The formula for the volume of a cylinder is  v = pi* r^2 * h

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7 0
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