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4 years ago

15

The data shown are the final exam scores of 10 randomly selected math students and the number of hours they studied for the exam

. The equation of the line of best fit for this data is

1 answer:

jonny [76]4 years ago

4 0

Answer: B) y=5.044x +56.11

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Solve the following system: 5x + 4y = 6 -2x – 3y = -1

yanalaym [24]

Answer:

$\left \{ {{y=-1} \atop {x=2}} \right.$

Step-by-step explanation:

$\left \{ {{5x+4y=6} \atop {-2x-3y=-1}} \right. \left \{ {{10x+8y=12} \atop {-10x-15y=-5}} \right. \left \{ {{-7y=7} \atop {-10x-15y=-5}} \right. \left \{ {{y=-1} \atop {-10x-15y=-5}} \right. \left \{ {{y=-1} \atop {-10x+15=-5}} \right. \left \{ {{y=-1} \atop {-10x=-20}} \right. => \left \{ {{y=-1} \atop {x=2}} \right.$

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2 years ago

The sum of two numbers is -7. Five times the first number plus the second number is 1. What are the numbers?

arlik [135]

Answer:

Step-by-step explanation:

Well you only want the two equations so here they are.

x + y = -7

5*x + y = 1

I should give you the answer.

x = 2

y = -9 I think. These answers were done in my head.

4 0

3 years ago

In 2015, the population of a town was 8914. The population is expected to grow at a rate of 1.36% each year. At this rate, what

wolverine [178]

Answer:

320904

Step-by-step explanation:

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3 years ago

The store paid $4.50 for a book and sold it for $7.65. What is the profit as a percent of the cost to the store?

Gelneren [198K]

Answer:

12.5

Step-by-step explanation:

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4 years ago

Find the product of (3.7 × 104) and 2.

Debora [2.8K]

Answer:

A. The answer is 7.4x10^3

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3 years ago