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disa [49]
3 years ago
11

For the figure below find BC to the nearest whole number CD=15

Mathematics
1 answer:
disa [49]3 years ago
8 0

Answer:

BC = 3

Step-by-step explanation:

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10.B. What number do you need to add/subtract/multiply/divide each side by in
Sindrei [870]

Step-by-step explanation:

step 1. m + 7.02 = 6.32

step 2. m = -0.70. (subtract 7.02 from each side)

5 0
3 years ago
Find the value of x.
valentina_108 [34]

Answer:

  x = 100

Step-by-step explanation:

The ratios of long side to hypotenuse are the same for all these triangles.

  x/(x+10) = (x+10)/(x+21)

  x^2 +21x = x^2 +20x +100 . . . . . multiply by (x+10)(x+21), expand

  x = 100 . . . . . . . . . . . . . . . . subtract x^2 +20x

5 0
3 years ago
Amanda wants to make a rectangular fenced area for her dogs. She wants the area to be 32 square feet with the length of the yard
navik [9.2K]
The fence is a 8x4 fence as they multiply up to 32 square feet and 8 is double 4. If you add 8+8+4+4 you will get 24. Then you multiply the perimeter (24) by 3 to get the final cost. This means that the final cost will be $72.00.
3 0
3 years ago
What is 12 1/2% of 256
s344n2d4d5 [400]
To determine this, we need to set up fractional proportions.
First, put 12.5% (what we're looking for) over 100%, which is the total (256).
12.5/100 should be your first fraction.
Now, put x over 256, x being 12.5% of 256.
x/256 should be your second fraction.
Now put these two fractions as an equation.
x/256 = 12.5/100
This may be where things get tricky if you don't pay attention.
Cross multiply the top number (numerator) of x/256 with the bottom number (denominator) of 12.5/100.
You should end up with 100x.
Now, cross multiply the top number of 12.5/100 with the bottom number of x/256.
You should end up with 3200.
Now our equation is:
100x = 3200
Divide both sides by 100 to get x.
100x/100 = x
3200/100 = 32
x = 32 is now your simplified equation.
Your final answer is:
32 is 12.5% of 256.
Also, since 12.5% is 1/8 of 100%, we can test our answer.
Multiply 32 by 8 to get 8/8 (100%).
32 x 8 = 256.
Your answer is 32.
I hope this helps!

6 0
3 years ago
Factor.<br> x^2+25<br><br> (x+5) (x-5) <br> (x+5) (x+5)<br> (x+5i) (x-5i)<br> (x+5i) (x+5i)
icang [17]

Answer:

( x + 5 i ) ( x − 5 i )

Step-by-step explanation:

Multiply the constant by  − i ^2  and factor.

4 0
3 years ago
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