1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Artist 52 [7]
3 years ago
15

What is the area of a trapezoid ABCD with bases AB and CD , if: AB=10cm, BC=DA=13cm, CD=20cm

Mathematics
1 answer:
aliya0001 [1]3 years ago
7 0

Step-by-step explanation:

to find height :

draw a height from A to CD

height = (13) 2 - 5) 2 = 12 Cm

area = 10+20 /2 X 12= 180 cm 2

You might be interested in
How do i solve -18-6k=6(1+3k)
olga nikolaevna [1]
-1 is the answer to your question
5 0
3 years ago
How do I do this again ?
AVprozaik [17]

The formula for the area of a trapezoid is a=1/2(b1+b2)h

So 10*5 = 50 *4 = 200 then divided by 2 is 100 so the answer is 100

7 0
3 years ago
Consider the equation below (in screenshot)
frozen [14]

The <em>approximate</em> solution of the equation shown in the picture is x ≈ 39 / 8 (Right choice: B).

<h3>How to find an approximate solution of a one-variable equation</h3>

The solution of the equation is between x = 4 and x = 5. Now we begin by evaluating each side of the expression (f(x) = x² - 5 · x + 4, g(x) = 2 / (x - 1)) at the average of x = 4 and x = 5.

x = (4 + 5) / 2

x = 4.5

f(4.5) = 4.5² - 5 · 4.5 + 1

f(4.5) = - 5 / 4

g(4.5) = 2 / (4.5 - 1)

g(4.5) = 4 / 7

The solution of the equation is between x = 4.5 and x = 5, then we evaluate at the average:

x = (4.5 + 5) / 2

x = 4.75

f(4.75) = 4.75² - 5 · 4.75 + 1

f(4.75) = - 3 / 16

g(4.75) = 2 / (4.75 - 1)

g(4.75) = 8 / 15

The solution of the equation is between x = 4.75 and x = 5, then we evaluate at the average:

x = (4.75 + 5) / 2

x = 4.875

f(4.875) = 4.875² - 5 · 4.875 + 1

f(4.875) = 25 / 64

g(4.875) = 2 / (4.875 - 1)

g(4.875) = 16 / 31

The <em>approximate</em> solution of the equation shown in the picture is x ≈ 39 / 8 (Right choice: B).

To learn more on successive approximations: brainly.com/question/27191494

#SPJ1

7 0
2 years ago
What is 60 - 56 divided by 8•2 will give brainliest
Paladinen [302]

Answer:

1/4

Step-by-step explanation:

if you subtract the top, and multiply the bottom, the outcome is 4/16 or 1/4

4 0
3 years ago
Read 2 more answers
An equilateral triangle has a perimeter of 15x +3. what is the length of each side of the triangle?
xxTIMURxx [149]
The length of each side is 5x + 1
3 0
3 years ago
Other questions:
  • 5TH GRADE MATH TESTING PEOPLE​
    14·2 answers
  • Which of the following is equal to the fraction below? (5/9)^8
    15·1 answer
  • Arnold needs to simplify the expression below.
    10·1 answer
  • Tim worker went to his bank. He deposited $72.15 and the teller credited $5.79 to his account for interest. If Tim's initial bal
    13·2 answers
  • Chin bought 12 pounds of apples for $6. What is the cost of buying 3 pounds of apples? Check your answer.
    5·1 answer
  • What is the value of x?<br><br> The square root of 2x =4
    7·2 answers
  • Solve the equation using addition or subtraction x - 2 = 9
    5·1 answer
  • Plz help what is the volume of this container
    14·1 answer
  • The leaning tower of Pisa is approximately 179 ft in “height” and is approximately 16.5 ft out of plumb. Find the angle at which
    5·1 answer
  • Xác suất để một máy sản xuất ra sản phẩm loại I là 0,3. Cho máy đó sản xuất ra 3 sản
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!