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
castortr0y [4]
2 years ago
8

Trapezoid ABCD has an area of 525 cm squared. If height AB = 21 cm and BC = 37 cm, what is the measure of AD?​

Mathematics
1 answer:
Annette [7]2 years ago
8 0

Answer:

AD = 13

Step-by-step explanation:

Area of trapezoid ABCD

=  \frac{1}{2} (AB + AD) \times AB \\  \\  525=  \frac{1}{2} (37+ AD) \times21\\  \\  525 \times 2=  (37+ AD) \times21 \\  \\ 1050 = 21 \times 37 + 21AD \\  \\ 1050  = 777+ 21AD \\  \\  21AD  = 1050 - 777 \\  \\ 21AD  = 273 \\  \\ AD  =  \frac{273}{21}  \\  \\ AD  = 13

You might be interested in
What are the coordinates of the midpoint of segment AB with the endpoint A(-3,4) and (5,6)
gayaneshka [121]

Answer:

(1,5)

Step-by-step explanation:

You use the midpoint formula to solve this problem

The midpoint formula:

To solve for x: (x1+x2)÷2

To solve for y: (y1+y2)÷2

5 0
3 years ago
What does how many mean?
Serga [27]
Divided by its a key word for example: Sally has 100 cookies she shares them with 9 friends how many cookies does each person get? including sly there are 10 people. so, it would be 100÷10 which is 10

please mark brainlest
7 0
3 years ago
A 17-foot ladder is leaning against a building. The base of the ladder is 8 feet
ss7ja [257]

Answer:

Pythagorean theorem:

x^2 = 17^2 - 8^2

x^2 = 225

x = sqrt(225) = 15

The distance is 15 ft

3 0
2 years ago
Read 2 more answers
Please help for 16 points <br>NO WRONG ANSWERS PLEASE ​
Sedbober [7]

Answer:

x = 30, x = 5 and x = 9

Step-by-step explanation:

The diagonals of a square are perpendicular bisectors of each other, so

∠ AEB = 90° , then

3x = 90 ( divide both sides by 3 )

x = 30

---------------------------------------------------------

(9)

The 4 angles of a square are right and the diagonals bisect the angles, then

∠ BAC = 45° , so

9x = 45 ( divide both sides by 9 )

x = 5

-------------------------------------------------------

(10)

All sides are congruent , so

CD = AB , that is

3x - 5 = 2x + 4 ( subtract 2x from both sides )

x - 5 = 4 ( add 5 to both sides )

x = 9

5 0
3 years ago
Enter the set described below:
LenKa [72]

Answer:

  {1, 5, 25, 125, 625}

Step-by-step explanation:

The smallest positive integers that meet the requirement will be ...

  5^0 = 1

  5^1 = 5

  5^2 = 25

  5^3 = 125

  5^4 = 625

As a set, these numbers are {1, 5, 25, 125, 625}.

7 0
2 years ago
Other questions:
  • Solve and justify -3y-15=2(17-5y)
    13·1 answer
  • What is the probability of rolling 2 dice with sides 2,4,6, and 8? Then, what is the probability of getting a sum of 4,6,8,10,12
    10·1 answer
  • Evaluate <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7By%7D%20%20for%20x%20%3D%20%20%5Cfrac%7B2%7D%7B3%7D%20and%20y%20%3D%2
    6·1 answer
  • Select the correct answer.<br> Which graph represents a proportional relationship
    14·1 answer
  • While bowling with friends, Brandy rolls a strike in 4 out of 10 frames. What is the experimental probability that Brandy will r
    11·1 answer
  • How do I find the gradient of the line y=x-5
    8·1 answer
  • Q2.<br> (a) Solve<br> f+ 2f + f = 20
    9·2 answers
  • Please help You don’t have to do the first question but please help me with the rest please help me I have to finish by 6 :00 ca
    11·1 answer
  • X(x+7)=4x+10<br> then needs to get the normal form of the equation<br> x= ?, x=?
    10·1 answer
  • 1 is the additive identity of any real number True or False​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!