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erastova [34]
3 years ago
10

Please help me find the area of the trapezoid :/

Mathematics
1 answer:
Nat2105 [25]3 years ago
3 0

area=(b1+b2)*h all divided by 2  

a=(12+12+8.7)*4.9 all divided by 2

a=32.7*4.9/2

a=160.23/2

a=80.12 sq. ft.

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How do you this??<br><br> Scientific notation
Airida [17]
So Scientific Notation is a "simplified version" of a number. For example, is your number is 2,345, the scientific notation would be 2.345 * 10³. 

If it was 0.023, then the scientific notation would be 2.3 * 10^-2. 

Scientific notation is found by moving the decimal place to the left or right, until only one digit is left to the left of the decimal; it has to be greater than 1, but less than ten. If you move the decimal place to the right, it's a negative power of 10. If you move it to the left, it is a positive power of 10.


Hope this helps!
4 0
3 years ago
Here is a diagram of a black circle inside a white square and a diagram of a small grey square inside a white square.
nika2105 [10]

The ratio of the area of the black circle to the area of the white square to the area of the gray square is π : 4 : 2

<h3>How to determine the ratio of the areas?</h3>

The side length AB is given as:

AB = 8x

The area of the white square is calculated as

White = (AB)²

This gives

White = (8x)²

Evaluate

White = 64x²

The side length AB represents the diameter of the black circle.

So, the radius is:

r =AB/2

This gives

r = 8x/2 = 4x

The area is then calculated as:

Circle = πr²

This gives

Circle = π(4x)²

Evaluate

Circle = 16πx²

Next, calculate AW and AZ using:

AZ = AW = AB/2

Evaluate

AZ = AW = 8x/2 = 4x

Calculate WZ using the following Pythagoras theorem

WZ² = AW² + AZ²

This gives

WZ² = (4x)² + (4x)²

Evaluate

WZ² = 2(4x)²

Take the square root of both sides

WZ = 4x√2

The area of the gray square is:

Gray = WZ²

This gives

Gray = 2(4x)²

Evaluate

Gray = 32x²

At this point, the areas are:

  • White = 64x²
  • Circle = 16πx²
  • Gray = 32x²

The ratio is then represented as:

Ratio = Circle : White : Gray

This gives

Ratio = 16πx² : 64x² : 32x²

Divide through by 16x²

Ratio = π : 4 : 2

Hence, the ratio of the area of the black circle to the area of the white square to the area of the gray square is π : 4 : 2

Read more about areas at:

brainly.com/question/24487155

#SPJ1

6 0
1 year ago
Three salesmen work for the same company, selling the same product. And, although they are all paid on a weekly basis, each sale
gulaghasi [49]

Answer:

12 sales

Step-by-step explanation:

7 0
3 years ago
The sum of 4 and x is greater than 6, what is the inquality?
LuckyWell [14K]
The inequality is :

4 + x > 6
6 0
3 years ago
Read 2 more answers
Help? Thankyou so much
timurjin [86]
If Andrew were to rest, he would not be moving (walking).  During such a period, the beginning distance would be the same as the ending distance.

In this graph there are two such time intervals:  BC and DE.  Notice how the graph is 'flat' on each; this 'flat' graph indicates a speed of zero.  
6 0
3 years ago
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