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lisov135 [29]
3 years ago
12

What is the fifth term of (x-2y)^7

Mathematics
1 answer:
Vladimir79 [104]3 years ago
3 0

Answer:

560x^3y^4.

Step-by-step explanation:

The (r+1)th term of (a + b)^r = nCr a^(n-r) b^r

We want the fifth term so r = 5 - 1 = 4:

(4 + 1)th term = 7C4 x^(7-4) (-2y)^4

= 35x^3 16y^4

= 560x^3y^4.

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6 0
3 years ago
Will give brainliest to whoever answers this question please help
jek_recluse [69]

Answer:

∠ STR = 64°

Step-by-step explanation:

Since RS = ST then the triangle is isosceles and the base angles are congruent, that is

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8 0
3 years ago
Read 2 more answers
What's the pattern for 2,4,7,9
Semenov [28]

Answer:

The pattern is this: I create a function p(x) such that

p(1)=1

p(2)=1

p(3)=3

p(4)=4

p(5)=6

p(6)=7

p(7)=9

Therefore, trivially evaluating at x=8 gives:

p(8)= 420+(cos(15))^3 -(arccsc(0.304))^(e^56) + zeta(2)

Ok, I know this isn’t what you were looking for. Be careful, you must specify what type of pattern is needed, because the above satisfies the given constraints.

Step-by-step explanation:

4 0
3 years ago
Which is the equation of the given line. (-4,-3) and (2,-3)
Kruka [31]
Little tip....notice how ur y coordinates are the same....this means that u have a horizontal line which is represented by y = a number...with that number being the y coordinate of ur points.
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8 0
3 years ago
2 Points
nadezda [96]

Answer:

x^2 +4x -4      

Step-by-step explanation:

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(f+ g)(x) =  4x + 1 + x^2 - 5

Combine like terms

          = x^2 +4x -4      

4 0
3 years ago
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