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lord [1]
3 years ago
5

Matt is playing a game. He gains 7 points, loses 10 points, gains 2 points, and then loses 8 points. What is his final score?

Mathematics
2 answers:
Fed [463]3 years ago
8 0

you start with 7, then subtract 10 which makes -3, then add 2 which equals -1, then subtract 8 which equals -9.

saveliy_v [14]3 years ago
5 0

+7 -10+2-8 =

-3+2 -8

-1-8

-9

His final score is -9

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Xyz company's cost function for four months is c=500000+5q
Nutka1998 [239]

Answer:

The answer is below

Step-by-step explanation:

The company cost (C) = 500000 + 5q.

The cost function is given as C = a + cx, where a is the fixed cost and b is the variable cost. Hence, from the company's cost function, the variable  cost is 5 and the fixed cost is 500000. The selling price is given as 6. The break even volume is given by:

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Step-by-step explanation:

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2 years ago
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The lengths of three sides of a quadrilateral are shown below:
julsineya [31]
Answers: 
Part A: 12y² + 10y – 21
Part B: 4y³ + 6y² + 6y – 5 
Part C: See below.

Explanations: 
Part A: 
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Side 1 = 3y² + 2y – 6
Side 2 = 4y² + 3y – 7
Side 3 = 5y² + 5y – 8
3y² + 2y – 6 + 4y² + 3y – 7 + 5y² + 5y – 8
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Part B: 
You have the total perimeter and the sum of three of the sides, so you just need that fourth side value, which we can call d.
P = 4y³ + 18y² + 16y – 26
Sides 1, 2 & 3 = 12y² + 10y – 21 
Create an algebraic expression: 
12y² + 10y – 21 + d = 4y³ + 18y² + 16y – 26
Solve for d: 
12y² + 10y – 21 + d = 4y³ + 18y² + 16y – 26
– 12y²                                – 12y²
10y – 21 + d = 4y³ + 6y² + 16y – 26 
– 10y                               – 10y
– 21 + d = 4y³ + 6y² + 6y – 26 
+ 21                                + 21 
d = 4y³ + 6y² + 6y – 5 

Part C: 
If closed means that the degree that these polynomials are at stay that way, then yes, this is true in these cases because you will notice that each side had a y², y and no coefficient value except for the fourth one. This didn't change, because you only add and subtract like terms.
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