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slava [35]
3 years ago
13

A square floor tile has a diagonal 19 inches long. What is the area of the tile?

Mathematics
1 answer:
Anit [1.1K]3 years ago
3 0

Answer:

C

Step-by-step explanation:

The answer is C because you plugin using the area formula.

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What’s grade are you?
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Is the following statement correct? Explain.
Maksim231197 [3]

Answer:  The answer is NO.


Step-by-step explanation: The given statement is -

If the graph of two equations are coincident lines, then that system of equations will have no solution.

We are to check whether the above statement is correct or not.

Any two equations having graphs as coincident lines are of the form -

ax+by=c,\\\\dax+dby=dc,\\\\\textup{where}~~d\neq 1.

If we take d = 1, then both the equations will be same.

Now, subtracting the second equation from first, we have

a(1-d)x+b(1-d)y=c(1-d)\\\\\Rightarrow ax+by=c,~\textup{since}~d\neq 1,~\textup{so}~1-d\neq 0.

Again, we will get the first equation, which is linear in two unknown variables. So, the system will have infinite number of solutions, which consists of the points lying on the line.

For example, see the attached figure, the graphs of following two equations is drawn and they are coincident. Also, the result is again the same straight line which has infinite number of points on it. These points makes the solution for the following system.

2x+5y=10,\\\\6x+15y=30.

Thus, the given statement is not correct.


4 0
3 years ago
Evaluate the function as indicated determine its domain and range.
crimeas [40]
<span>-1<0 so use 2x+1 2(-1)+1=-2+1=-1 -
</span><span>F(-1) means "Evaluate F(x) when x=-1" Since -1 is less than 0, this means that F(x) = 2x+1. This is because F(x) = 2x+1 when x < 0</span>
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2. Write the equation of the line perpendicular to 3x-4y=7 and passing through (0,0).​
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Answer: y=-4/3x

Step-by-step explanation: opposite reciprocal

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3 years ago
n solving the inequality -3x &lt; 9, you would divide both sides of the inequality by -3 and flip over the inequality symbol. Tr
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Answer:True


Step-by-step explanation:


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