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Tom [10]
3 years ago
9

ABCD is a rectangle. If AC = 2x + 10 and BD = 56, find the value of x.

Mathematics
1 answer:
TEA [102]3 years ago
7 0

9514 1404 393

Answer:

  (b)  23

Step-by-step explanation:

The diagonals of a rectangle are the same length, so ...

  AC = BD

  2x +10 = 56

  x +5 = 28 . . . . . divide by 2

  x = 23 . . . . . . . . subtract 5

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PLEASE HELP. I don’t get it at all and I’d really appreciate it. Thank you!
White raven [17]

Answer:

was this the whole question cause it depends on what the plane is

Step-by-step explanation:

3 0
2 years ago
The product of two numbers is 42.63. If one number is 2.1, find the other. *
dybincka [34]

Answer:

20.3

Step-by-step explanation:

42.63=2.1*x

42.63/2.1=x

20.3=x

Please mark me as brainliest

7 0
3 years ago
one edition of alice's adventures in wonderland has 352 pages. How many 4s were used in its page numbers
Tema [17]
35 4's were used when writing this book
7 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cbf%20%5Ccfrac%7B2%7D%7B3%7D%28x-4%29%28x%2B5%29%3D1%5Cimplies%20%5Ccfrac%7B2%28x-4%29%28x%2
adell [148]

Answer:

x =  - 6 3/10

We need to show at least two of these in workings including one in simplified format.

x = - 63/10   (minus in front of whole fraction)  

mixed number form  x = -6 3/10   (is simplified answer)

decimal form  x  =  -6.3  (is simplified answer)

Step-by-step explanation:

Just in case you ever need to write these in ans search answers already answered in same format.

You can;

Go to upper right corner and click the three dots : another menu opens.

Click the summation sign (4th from left) : you are now in math mode until you deselect it (which sometimes happens automatically). Type a^{2} and it will look like a2 .

Note : the brackets { and } aren’t necessary when your exponent is a natural number between 0 and 9, both included.

However, when you want to type e.g. a15 , you need to place them, because otherwise you will get a15 .

it will look in same way as we are taught with a pen, its the stupid copy paste thing hit and miss if it works on messages here, Obviously it didnt work when i copied just now.

Adding a Range of Cells Using the Summation Button

The Summation button will copy a formula that calculates the sum of the selected numeric cells to the clipboard.

For alphanumeric cells, clicking the Summation button will concatenate the text of the selected cells.

Select the cells by dragging the mouse over the selected area or dragging while holding Alt.

On the Document tab, click Summation.

Position the insertion point in the total cell.

On the Home tab, click Paste.

The Equation bar displays the addition of all cells in the selection.

Note: Only Numeric cells can be summed. Alphanumeric cells will have their text concatenated.

6 0
3 years ago
In the figure below, angle y and angle x form vertical angles. Angle y forms a straight line with the 80° angle and the 60° angl
JulijaS [17]

Answer:

40 is the missing angle

Step-by-step explanation:

all straight angles must add up to 180

so if we add 80+60=140 then do 180-140=40

that should be the answer

7 0
2 years ago
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