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ludmilkaskok [199]
3 years ago
15

Question 20. The expression which defines the area of a trapezium is...

Mathematics
1 answer:
jeka943 years ago
4 0

Answer:

b = 2A/h - a . (option a)

Step-by-step explanation:

Check attachment

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I need the answer to this with the steps, that’d help me out so much thank you❤️.
Hatshy [7]

Answer: The dimensions of the frame:.

W= 2√10 or about 6.3245 inches

L= 4√10 or about 12.6491 inches

Step-by-step explanation:

This would be so much easier if the area of the box was 72. Then the dimensions of the frame would be 6 × 12. So just a little bit larger and more complicated.

Here the equation is w(2w)=80

2w^2 = 80 (2w is easier to work with than L/2).

w^2=40 (^2 means squared)

√w^2 = √40 square root of both sides: Factor 40. Take out√4

W = √4*10

W= 2√10

L= 2w = 4√10

6.3245 × 12.6491 = 80

5 0
3 years ago
one side of rectangle is 3 inches shorter than the other side, the perimeter is 54 inches. what are the dimensions of the rectan
dimaraw [331]

Answer:

2x + 2(x - 3) = 54

Please mark as brainliest


5 0
3 years ago
Read 2 more answers
I need help with #7 ?!!! <br> Btw #6 is correct
Musya8 [376]

Choice C for problem 6 is correct. The two angles (65 and 25) add to 90 degrees, proving they are complementary angles.

===========================================

The answer to problem 7 is also choice C and here's why

To find the midpoint, we add up the x coordinates and divide by 2. The two points A(-5,3) and B(3,3) have x coordinates of -5 and 3 respectively. They add to -5+3 = -2 which cuts in half to get -1. This means C has to be the answer as it's the only choice with x = -1 as an x coordinate.

Let's keep going to find the y coordinate of the midpoint. The points A(-5,3) and B(3,3) have y coordinates of y = 3 and y = 3, they add to 3+3 = 6 which cuts in half to get 3. The midpoint has the same y coordinate as the other two points

So that is why the midpoint is (-1,3)

7 0
3 years ago
Explain why parallelograms are always quadrilaterals but quadrilaterals are sometimes parallelograms
Gnoma [55]
Im sure this website will help answer.com
7 0
3 years ago
What are the lines in the picture below called?
mr Goodwill [35]

Answer:

the answer is vertices

hope this helps!

Step-by-step explanation:

3 0
3 years ago
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