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butalik [34]
3 years ago
15

Any body know the answer

Mathematics
1 answer:
Fynjy0 [20]3 years ago
5 0

Answer:

The answer is 39 students  

Step-by-step explanation:

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A mirror frame in the shape of an oval is shown below. The ends of the frame form semicircles: (5 points)
guapka [62]

Answer:

696.265 inches

Step-by-step explanation:

Radius = 27/2 = 13.5

2 semicircles + 2 lengths

(3.14 × 13.5²) + 2(62)

696.265 inches

4 0
2 years ago
A parallelogram has sides of length 5 cm, 7 cm, and 7 cm. What is the length of the fourth side of the parallelogram?
zmey [24]

Answer:

the side is 5cm

Step-by-step explanation:

3 0
3 years ago
If a rectangle has an area of x^2+x-20 and a width of x-4, what is the length?
Mrac [35]

Answer:

This (x - 5) represents the length of the rectangle.

Step-by-step explanation:

The formula for the area of a rectangle of length L and width W is A = L * W.

Here, the width is x - 4 and the area is x^2 + x - 20.  Dividing the width (x - 4) into the area results in an expression for the length:

x - 4  /   x^2 + x - 20

Let's use synthetic division here.  It's a little faster than long division.

If the divisor in long division is x - 4, we know immediately that the divisor in synthetic division is 4:

4   /   1    1    -20

              4     20

    --------------------

         1     5     0

This synthetic division results in a remainder of 0.  This tells us that 4 (or the corresponding (x - 4) is indeed a root of the polynomial x^2 + x - 20, and so *(x - 4) is a factor.  From the coefficients 1 and 5 we can construct the other factor:  (x - 5).  This (x - 5) represents the length of the rectangle.

4 0
2 years ago
In which case would it be necessary to find the area of this circle
9966 [12]
You need to know the area if you're going to
  1st selection: cover the surface of the dartboard.
7 0
3 years ago
How would I simplify number 3) ?
Anna [14]
You wouldn’t because 3 is the base number and cannot be simplified anymore
6 0
2 years ago
Read 2 more answers
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