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Snowcat [4.5K]
3 years ago
6

Based on the Information determine which sides of quadrilateral ABCD must be parallel

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

The angles must be opposite to be equal to each other so parallelogram ABCD

Line AB is parallel to DC and line AD is parallel to BC

C is the correct answer

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A square is cut from a rectangle. The side length of the square is half of the unknown width w. The area of the shaded region is
Virty [35]

Answer:

  • See below

Step-by-step explanation:

<u>The side of the square is w/2, then its area is:</u>

  • A = (w/2)² = w²/4

<u>The shaded area is the difference of areas of the rectangle and the square:</u>

  • 14w - w²/4 = 84

<u>This can be simplified:</u>

  • 56w - w² = 336
  • w² - 56w + 336 = 0

8 0
2 years ago
Please please please help me. I have no idea what to do
rewona [7]
We have a bunch of rectangles making up the lateral sides of this figure. They have side length 12 and height 13.

So the area of one rectangle is 12 x 13 = 156.
We have 6 of these rectangles, so our lateral area is 6(156) = 936.

The total surface area requires that we include the area of the base. To find the area of a regular polygon we take half of the product of the apothem and perimeter.

A = (1/2)*a*p

The apothem is given to be 10.39,
and the perimeter is fairly easy to calculate:
With the side length being 12, the perimeter is then 6(12) = 72.

So then the area of our base is (1/2)*10.39*72 = 374.04

So then the total surface area is the (base area) + (lateral area),
374.04 + 936 = 1310.04
3 0
3 years ago
SOMEONE PLEASE HELP ME ASAP PLEASE!!!​
melamori03 [73]

Answer:

3.6

Step-by-step explanation:

d = sqrt(3^2+2^2) = sqrt(13) = 3.6

7 0
3 years ago
You can buy 20 fluid ounces of shampoo for $4.40 or 24 fluid ounces for $4.80. Which is the better buy? Explain.
lidiya [134]
First you have to do 440 / 20, which is 22 cents per bottle
Next you have to do 480 / 24, which is 20 cents per bottle
20 < 22, so the 24 ounces of shampoo is the correct answer.
6 0
3 years ago
Read 2 more answers
How to solve a quotient rule problem with a negative in the denominator?
denpristay [2]
You can take the -1 times the final answer and keep the denominator as positive, or keep track of all the negatives.
8 0
3 years ago
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