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ratelena [41]
3 years ago
13

The area of rectangle R is 48. If its sides are whole numbers, then its perimeter cannot be__?

Mathematics
1 answer:
aev [14]3 years ago
6 0

An odd number. That's because the formula for the perimeter is

P = 2* (L + W)

Multiplying by 2 is never going to produce an odd number.  The question is much trickier than it looks. What happens when you have a square with sides of 7.

The area = s^2

Area = 7 * 7

Area = 49 and that's odd. But can you get an odd perimeter? The answer is no. The perimeter of a square is 4s

P = 4s. If s = 7

P = 4*7

P = 28 which is even. If there is another answer, I'm unaware of it.

A: P = 2*(6 + 8) = 2*14 = 28 A is a correct Perimeter.

B: P = 2*(3 + 16) = 2*19 = 38 B is a correct Perimeter.

C:P = 2*? Can't find anything. C is the answer.

D:P = 2*(1 + 48) = 2*49 = 98. D is correct.

Answer: C

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Hello please help me I don't get this at all
Stella [2.4K]
There are 1 rectangle and 2 triangles.
The area of the rectangle is 5 x 7 =35
The are of the triangle is 7 x 2 = 14(1/2) = 7
There are 2 triangles, so 7 x 2 = 14

14 + 35 = 49

49 is your answer

hope this helps
4 0
3 years ago
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Find the slope of the line that passes through (-33, -27) and (-32, -25).
Snezhnost [94]

Answer: 2.

Step-by-step explanation:

You can find the slope between two points by using the "rise-over-run" method.

This method essentially calculates the slope as the quotient of the vertical span and horizontal span of the two points.

You can find it through this formula:

s = \frac{y2 - y1}{x2 - x1}

To find the slope, use two points, (x1, y1) and (x2 and y2).

For the points given, I will replace those values in the formula with (-33, -27) and (-32, -25).

s = \frac{-27 - (-25)}{-33 - (-32)}\\\\s = \frac{-2}{-1}\\\\s = 2

The slope of the line is 2.

6 0
2 years ago
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Pepsi [2]

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Step-by-step explanation:

Because it tells you what y is

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Is the given point interior, exterior, or on the circle (x + 2)2 + (y - 3)2 = 81? P(8, 4)
Elodia [21]
From the equation we see that the center of the circle is at (-2,3) and the radius is 9.

So using the distance formula we can see if the distance from the center to the point (8,4) is 9 units from the center of the circle...

d^2=(8--2)^2+(4-3)^2  and d^2=r^2=81 so

81=10^2+1^2

81=101  which is not true...

So the point (8,4) is √101≈10.05 units away from the center, which is greater than the radius of the circle.  

Thus the point lies outside or on the exterior of the circle...
8 0
3 years ago
In certain economies, the government operates as the central authority, guiding the economy and controlling (and owning) many of
Andrej [43]

Answer:

b

Step-by-step explanation:

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