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Len [333]
2 years ago
13

Which of the following terms appear in the expression of (x+y)^10? The letter a in each term represents a real constant.

Mathematics
2 answers:
salantis [7]2 years ago
8 0

The terms A, B, and D appear in the expansion.

The sum of the powers of the variables in each term should equal the power of the binomial.

A ) In ax^{3}y^{7}, the sum of the powers, 3 + 7, equals 10.

B ) In ax^{4}y^{6}, the sum of the powers, 4 + 6, equals 10.

D ) In ax^{6}y^{4}, the sum of the powers, 6 + 4, equal 10.

C ) In ax^{5}, the power, 5, does not equal 10, so it does not appear in the expansion.

Ipatiy [6.2K]2 years ago
5 0

A,B,D because the sum of the powers of variables in each term of the expansion is equal to the power the binomial is raised to.

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Answer:

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Step-by-step explanation:

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Which of the following represents the zeros of f(x) = 5x3 − 6x2 − 59x + 12? (2 points)
Furkat [3]

Answer:

4, −3, 1 over 5

Step-by-step explanation:

x is a zero of f(x) if f(x) = 0

In this problem, we have that:

f(x) = 5x^{3} - 6x^{2} - 59x + 12

4, 3, 1 over 5

f(4) = 5*4^{3} - 6*4^{2} - 59*4 + 12 = 0

So 4 is a zero of the function

f(3) = 5*3^{3} - 6*3^{2} - 59*3 + 12 = -84

So 3 is not a zero of the function, and this option is incorrect

4, 3, − 1 over 5

f(3) = 5*3^{3} - 6*3^{2} - 59*3 + 12 = -84

So 3 is not a zero of the function, and this option is incorrect

4, −3, 1 over 5

f(4) = 5*4^{3} - 6*4^{2} - 59*4 + 12 = 0

So 4 is a zero of the function

f(-3) = 5*(-3)^{3} - 6*(-3)^{2} - 59*(-3) + 12 = 0

So -3 is a zero of the function

f(\frac{1}{5}) = f(0.2) = 5*(0.2)^{3} - 6*(0.2)^{2} - 59*(0.2) + 12 = 0

So 1 over 5 is a zero of the function

This is the correct answer.

4, −3, −1 over 5

f(4) = 5*4^{3} - 6*4^{2} - 59*4 + 12 = 0

So 4 is a zero of the function

f(-3) = 5*(-3)^{3} - 6*(-3)^{2} - 59*(-3) + 12 = 0

So -3 is a zero of the function

f(-\frac{1}{5}) = f(-0.2) = 5*(-0.2)^{3} - 6*(-0.2)^{2} - 59*(-0.2) + 12 = 23.52

-1 over 5 is not a zero of the function

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2 years ago
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I think it’s 20-16y :)
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Which number line correctly shows -3-1.5?​
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Pretty sure it’s the 3rd
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