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Alex17521 [72]
2 years ago
6

2x+y=5 solve for y (please show work)

Mathematics
1 answer:
nasty-shy [4]2 years ago
3 0

Answer:

subtract y from both sides

y=-2x+5

Step-by-step explanation:

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A proportion is two ratios equivalent to each other

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H(x)=-(x+11)^2+1. What are the zeros of the function? What is the vertex of the parabola?
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Answer:

x=-14

Step-by-step explanation:

-x-11^2+1

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A new cell phone has a purchase price of $225. With the extended warranty, the total cost comes to $289. What
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3 years ago
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Amanda and Fred are sister and brother. Amanda has twice as many sisters as brothers, and Fred has five times as many sisters as
pav-90 [236]

Answer:

In this family there are 5 girls and 2 boys

Step-by-step explanation:

Fred has five times as many sisters as brothers, so at least he has five sisters.

1. Let's suppose Fred has just one brother, in this case he would have five sisters (including Amanda). The condition that Fred has five times as many sisters as brothers is fufilled.

2. If Fred has one brother, it means that Amanda has two brothers

3. If Fred has five sisters (including Amanda), it means that Amanda has four sisters.

4. If Amanda has two brothers and four sisters, the condition that she has twice as many sisters as brothers is fufilled.

5. Then, in both cases, there are 5 girls and 2 boys:

Fred + 1 brother + 5 sisters = 2 boys, 5 girls

Amanda + 2 brothers + 4 sisters = 2 boys, 5 girls

8 0
3 years ago
Which ones? can someone help me(?)
drek231 [11]

Answer:


Step-by-step explanation:

First, what's a polynomial?  It's an algebraic expression whose only independent variable is x, and in which all the x powers are either zero or positive and are integers:  x^3, x^2, x^1, x^0 (for example).

Looking at possible answer choice A, we immediately reject this because that power of x is in the denominator, representing 2x^(-3).  This negative power of x is not allowed.  Reject A.

In B, we have the powers x^2, x^1 and x^0.  Great.  This is a polynomial.

In C, we have x^2 + 1 in the denominator of the final fraction.  Reject this because of the final term.

In D, we have x^2 + 2x + √

3 0
3 years ago
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