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
Kruka [31]
3 years ago
14

The area of a trapezoid is 864cm². It has a height of 24 cm, and the length of one of its bases is 30 cm. What is the length of

the other base?​
Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
5 0

The area <em>A</em> of a trapezoid with height <em>h</em> and bases <em>b</em>₁ and <em>b</em>₂ is equal to the average of the bases times the height:

<em>A</em> = (<em>b</em>₁ + <em>b</em>₂) <em>h</em> / 2

We're given <em>A</em> = 864, <em>h</em> = 24, and one of the bases has length 30, so

864 = (<em>b</em>₁ + 30) 24 / 2

864 = (<em>b</em>₁ + 30) 12

864 = (<em>b</em>₁ + 30) 12

72 = <em>b</em>₁ + 30

<em>b</em>₁ = 42

You might be interested in
Which of the following is a unit of measurement used in the apothecary system?
dlinn [17]
I believe it is option D

7 0
3 years ago
Find the value of xx, yy, and zz in the parallelogram below.
Scrat [10]

Answer: x = 92, y = -119

Step-by-step explanation:

Opposite sides of a parallelogram are equal.

x + 6 = 98

x = 92

127 = -y + 8

-y = 119

y = -119

5 0
2 years ago
Read 2 more answers
elect all that apply. A card is randomly drawn from a deck of cards. (There are 52 cards in a deck, with 13 cards of each suit.)
raketka [301]
If the original experiment trial was 100 draws the 
A. True - Experimental probability of drawing a club is 32%
B. True - Theoretical probability of drawing a diamond is 25%
C. True - Experimental probability of drawing a spade 90 times out of 500 trials
6 0
3 years ago
Two similar triangles are shown below: Which two sets of angles are corresponding angles? ∠w and ∠v; ∠x and ∠y ∠w and ∠y; ∠x and
VARVARA [1.3K]
I think the 2nd one I'm not really sure
8 0
3 years ago
Use a calculator to find the missing side length. Tell whether the side lengths form a Pythagorean Triple.
12345 [234]
Pythagorean theorem: a^2 + b^2 = c^2
The hypotenuse is always the c in the equation.  
If the two side lengths they gave you are not the hypotenuse, then enter
4.5^2 + 5.6^2 in the calculator, then find the square root of that. :-)
5 0
3 years ago
Other questions:
  • Determine the unknown measures of the triangle shown. Round to the nearest tenth, if necessary
    15·1 answer
  • A summer camp has divided its campers into 8 groups of 9 campers.How many campers are at the summer camp?
    14·2 answers
  • Or a two-sided confidence interval with 13 observations, σx unknown, and α = 0.10 the (critical) value is:
    6·1 answer
  • Simplify the ratio 4 22 30
    8·1 answer
  • Help me with A and B please
    9·1 answer
  • Which of the following functions is graphed below??
    7·2 answers
  • What is the value of e^ln7 x1<br> 7e<br> 7x<br> 7
    15·1 answer
  • Need help asap...........
    11·2 answers
  • Grandma is trying out a new recipe for raisin bread. Each batch of bread dough makes three loaves, and each loaf contains 15 sli
    7·1 answer
  • Solve the system y=x-3 y=-2x+3
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!