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3 years ago

If x > y, then |x| > |y|. This conditional statement is (true or false) . Counterexample:

Mathematics

1 answer:

Mademuasel [1]3 years ago

3 0

$x=1$
$y=-2$

$x>y$ is true, but $|x|=1$ and $|y|=2$ , but $1>2$ is false.

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Mike received a 10% raise each month for 3

s2008m [1.1K]

Answer:

his salary after three months would be 1300

Step-by-step explanation:

10 percent of 1000 is a hundred and multiply that by 3, it would equal 300 and add that to the 1000.

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3 years ago

An inequality is shown below. x + 2.5 < 20 What is the greatest value of x from the set {10.5, 12.5, 17.5, 19.5} that makes t

34kurt

C is the final answer :)

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4 years ago

PLEASE ANSWER REALLY DESPERATE FOR A ANSWER

inessss [21]

Answer:

x = 3

x = 0

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation:

2x^2 - 6x = 0

Pull out like factors

2x * (x - 3) = 0

Solve: 2x = 0

Divide both sides of the equation by 2:

x = 0

Solve: x-3 = 0

Add 3 to both sides of the equation:

x = 3

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4 years ago

Helpp i really neeed it

Marizza181 [45]

Answer:

9 hours

Step-by-step explanation:

If she makes $ 20 for each car, washing 9 cars in 3 hours would get $ 180.

So she will need to work 9 hours 180 + 180 + 180, washing 9 cars in 3 hours and would get $ 540. This is enough to buy her phone and she will have a surplus of $ 120.

In summary she must work 9 hours

Hope this helps you, please give me the brainliest

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3 years ago

a 4.50 g coin of copper absorbed 54 calories of heat. what was the final temperature of the copper if the initial temperature wa

I am Lyosha [343]

The final temperature of copper is 155.43°C.

Step-by-step explanation:

The formula to apply is Q=m*Δt*c where ;

Q=heat energy, m=mass, c=specific heat capacity and Δt= change in temperature

Given that Q=54 calories , m=4.50 g and c=0.092 cal/g°C

In this question find Δt then ,the final temperature.

Δt=Q/m*c

Δt=54/4.50*0.092 =130.43°C

To find final temperature, apply the formula;

Δt=Final temperature - Initial temperature

130.43°C=Final temperature-25°C

130.43°C+25°C=Final temperature

155.43°C

Learn More

Specific Heat Capacity : brainly.com/question/12431744

Keyword : specific heat capacity

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4 years ago