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Korvikt [17]
4 years ago
7

2x + y = 15 x = 15 - 2y is it no solution?

Mathematics
1 answer:
pychu [463]4 years ago
4 0

Answer:

It has a solution.

Step-by-step explanation:

Step 1: Rearrange 1st equation into slope-intercept form

2x + y = 15

y = 15 - 2x

Step 2: Rearrange 2nd equation into slope-intercept form

x = 15 - 2y

2y + x = 15

2y = 15 - x

y = 15/2 - x/2

Step 3: Rewrite systems of equations

y = 15 - 2x

y = 15/2 - x/2

Since the two lines are not parallel, they will have a solution.

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How to solve sets in mathematics ​
FinnZ [79.3K]

Answer:

Sets, in mathematics, are an organized collection of objects and can be represented in set-builder form or roster form. Usually, sets are represented in curly braces {},

For example, A = {1,2,3,4} is a set.

5 0
4 years ago
What is the average rate of change of y with respect to x over the interval [1, 5] for the function y = 4x + 2?
Reika [66]
<span>y = 4x + 2

</span><span>y(5) = 4(5) + 2 = 22
</span><span>y(1) = 4(1) + 2 = 6

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answer
</span><span>4</span>
4 0
3 years ago
Explain why the terms of the polynomial y2 + 7 are said to be relatively prime.
Georgia [21]

Answer:

The correct answer is because the alternative terms are prime and composite.

Step-by-step explanation:

The given polynomial is y^{2} + 7.

The value of the polynomial when y = 0 is 7.

The value of the polynomial when y = 1 is 8.

The value of the polynomial when y = 2 is 11.

The value of the polynomial when y = 3 is 16.

The value of the polynomial when y = 4 is 23.

The value of the polynomial when y = 5 is 32.

The value of the polynomial when y = 6 is 43.

And so on. Thus the value of the polynomial at alternate values of y are prime.  Thus this is why the polynomial is said to be relatively prime.

8 0
3 years ago
PLZ HELP ME :(
Lesechka [4]

Answer:

D)$660

Step-by-step explanation:

Add all of them up and you get $658.29 the number in the tens place is 5 and the number on the right is 8 so you round up.

4 0
3 years ago
Which of the following is equivalent to (x + 1)^2 ?
Greeley [361]

Answer:

x^2 +2x +1

Step-by-step explanation:

(x+1)^2

=(x+1)(x+1)

= x×x+x×1+1×x+1×1

=x^2+x+x+1

=x^2+2x+1

6 0
2 years ago
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