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bulgar [2K]
3 years ago
9

What is the equation of the line that passes through the point -3/5 and has a slope of -2

Mathematics
1 answer:
Gemiola [76]3 years ago
8 0

Answer:

y = -2x - 1

Step-by-step explanation:

y = mx + b

slope = m

y = -2x + b

5 = -2x * -3 + b

5 = 6 + b

-1 = b

y = -2x - 1

Let me know if I'm wrong :)

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Let n be a positive integer and define [n] to be the set of the first n positive integers. That is, [n] = {1, 2, 3, . . . , n}.
yaroslaw [1]

Answer: There are 2^{n-1} ways of doing this

Hi!

To solve this problem we can think in term of binary numbers. Let's start with an example:

n=5,  A = {1, 2 ,3},  B = {4,5}

We can think of A as 11100, number 1 meaning "this element is in A" and number 0 meaning "this element is not in A"

And we can think of B as 00011.

Thinking like this, the empty set is 00000, and [n] =11111 (this is the case A=empty set, B=[n])

This representation is a 5 digit binary number. There are 2^5 of these numbers. Each one of this is a possible selection of A and B. But there are repetitions: 11100 is the same selection as 00011. So we have to divide by two. The total number of ways of selecting A and B is the 2^{5-1} = 2^4.

This can be easily generalized to n bits.

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3 years ago
Complete this statement:<br> 15a2x2 + 12a2x + 9a2 = 3a?(
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Answer:

a=0

Step-by-step explanation:

im prbly wrong pls tell me if im wrong

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3 years ago
What is 8 divided by 827
Dima020 [189]
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Read 2 more answers
Find the product of (x + 5)(x − 5).
AfilCa [17]

Answer:

x² - 30 + 5x

Step-by-step explanation:

(x + 5)(x − 5)

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