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marusya05 [52]
3 years ago
13

Hello, I am really confuse and I need help with this problem.

Mathematics
1 answer:
Lelechka [254]3 years ago
7 0

Answer:

the answer is 22

Step-by-step explanation:

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Since 9 times 8 is 72, and 7200 is close to that number, a proper estimate would be 800.
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The table can be used to determine the solution of equations, 2x - 2y = 6 and 4x + 4y = 28.
NeTakaya

Answer:

(5, 2)

Step-by-step explanation:

Given the following system of equations;

2x - 2y = 6  ......equation 1.

4x + 4y = 28  ......equation 2.

To get an equivalent equation, we would multiply eqn 1 by 2;

2 * (2x - 2y = 6) = 4x - 4y = 12

The new equivalent system of equations are;

4x - 4y = 12

4x + 4y = 28  

Adding the equivalent system of equations, we have;

(4x + 4x) + (-4y + 4y) = (12 + 28)

8x + 0 = 40

8x = 40

x = 40/8

<em>x = 5</em>

Next, we would find the value of y;

2x - 2y = 6

Substituting the value of x, we have;

2(5) - 2y = 6

10 - 2y = 6

Rearranging the equation (collecting like terms), we have;

2y = 10 - 6

2y = 4

y = 4/2

<em>y = 2</em>

<em>Therefore, the solutions to the new system of equations are 5 and 2.</em>

<u>Check:</u>

2x - 2y = 6

Substituting the values, we have;

2(5) - 2(2) = 6

10 - 4 = 6

6 = 6

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3 years ago
What is the value of -3 to the power of four?
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Answer:

-81

Step-by-step explanation:

-3 to the power of 4 is -81.

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Answer:

EA, EB, EC and ED are opposites rays.

Step-by-step explanation:

Given that,

Line AB and line CD intersect at point E.

According to figure,

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Using diagram

We draw a first line AB and second line CD which is intersect of AB at point E.

Now, EA and EB is called opposite ray of first line AB.

Similarly,

EC and ED is called opposite ray of first line CD.

Hence, EA, EB, EC and ED are opposites rays.

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There is a 25% chance that Dane will make a three-point shot during a basketball game. A random-number generator generated 10 se
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Answer:

there is no table.  Sorry!

Step-by-step explanation:

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