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Mekhanik [1.2K]
3 years ago
9

3. A chessboard is covered by 64 squares that are of the same size.

Mathematics
1 answer:
Paul [167]3 years ago
7 0
A is 8 because there has to be 8 squares on one side so the area is 64
B is equal to 32 squares because 8+8+8+8 is equal to 32
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Help me plz whoever helps me thank you
musickatia [10]

Answer:

b

Step-by-step explanation:

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3 years ago
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An electrician needs to run a cable from the top of a 40​-foot tower to a transmitter box located 30 feet away from the base of
grin007 [14]
The cable should be 50 feet.

If you draw the picture, you will see that you have a right triangle.

Let's just use the Pythagorean Theorem to find the hypotenuse (or cable).

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3 0
3 years ago
Can anyone help me I was self isolating when my class was taught this and I can't get in contact with my teacher
Aleonysh [2.5K]

Answer:

Step-by-step explanation:

3x +2y = 13   -----------------(i)

x + 2y = 7    ----------------(ii)

Multiply the equation (ii) by (-1) and then add.

(i)              3x + 2y = 13

(ii)*(-1)      <u>-x    - 2y = -7 </u>        {Now, add and y will be eliminated}

                 2x       = 6

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x = 3

Plug in x = 3 in equation (i)

3*3 + 2y = 13

  9 + 2y = 13

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5 0
3 years ago
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Consider the line through (-1, -4) and (1, 2).<br>  What is the slope (m) of the line?<br>​
zloy xaker [14]

Answer:

<u><em>3</em></u>

Explanation:

  • \bold{\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}}

\bold{\left(x_1,\:y_1\right)=\left(-1,\:-4\right),\:\left(x_2,\:y_2\right)=\left(1,\:2\right)}

\bold{m=\frac{2-\left(-4\right)}{1-\left(-1\right)}}

  • Refine

<u><em>m = 3</em></u>

5 0
3 years ago
If your salary is $42,500 and your federal income taxes are 10% of your salary, how much money will you owe this year in federal
Zarrin [17]
I'm assuming that the salary is for the whole year. If it is not, do tell me. 
Tax = 10/100 * 45000
       = 4500
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6 0
3 years ago
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