answer.
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
-BARSIC- [3]
2 years ago
12

What is the area of ACDE to the nearest whole number? 10 cm 20 cm 21 cm А A 87 cm B. 105 cm C. 123 cm D 210 cm

Mathematics
1 answer:
Marina86 [1]2 years ago
7 0

Answer:

118.4 cm²

Step-by-step explanation:

<u>ΔABC:</u>

a² + b² = c²

(10)² + b² = (20)²

b² = 300

b = √300 or 17.32

21 - 17.32 = 2.68 = CD

<u>ACDE area:</u>

AE = 21 cm

CD = 2.68 cm

DE = 10 cm

21 + 2.68 = 23.68

(23.68/2) * 10 = 118.4

You might be interested in
Angelo's Pizza is having a ticket raffle to raise money for new soccer uniforms. A $1 ticket gives an even chance to win $25 gif
Bingel [31]

Answer:

1-25-15-5=44

Step-by-step explanation:

7 0
2 years ago
In the following questions, look at different ways to represent the relation given by the equation y = x2 - 1. The table below s
Verdich [7]

Question: In the following questions, look at different ways to represent the relation given by the equation y = x2 - 1. The table below shows some values for the given equation. Find the values of a and b.

Answer:

a= 3

b= 0

4 0
2 years ago
Pls help i have a test tmrw and i don't understand anything
Alex777 [14]

Answer:

Step-by-step explanation:

Go on super teacher worksheets to get the answer key

3 0
2 years ago
Daniel works at a nearby electronics store. He makes a commission of 15%15\%15%15, percent on everything he sells. If he sells a
galina1969 [7]
I dont understand, is it 15% over 15 % or just 15 % or is it 293$ over 293$ or is it just 239.
3 0
2 years ago
Read 2 more answers
A child has a bottle full of pennies, nickels,dimes and quarters. There are twice as many quarters as pennies, four times as man
s344n2d4d5 [400]

Answer:19x

Step-by-step explanation:

Take x as the value of pennies

If there are twice as many quarters as pennies then the explanation should be

Pennies =x

Quarters =2x

If there are 4 times as many nickels as pennies then the explanation is

Pennies =x

Nickels =4x

If there are 5 times as many dimes as nickels then the explanation is

Nickels =4x

Dimes=20x

So the values of them all is

Pennies =x

Nickels =4x

Dimes =20x

Quarters =2x

So to get how many more dimes does the child have than quarters you subtract

20x-2x=19x

3 0
2 years ago
Other questions:
  • timothy went to a baseball game. after the game, he wanted to ride the bus home. the red line and the blue line buses both both
    14·2 answers
  • Adele Garcia obtained a loan of 8,000$ at 12% interest for 24 months . The monthly payment is 367.80. after 15 payments the bala
    14·1 answer
  • Nectar foraging by bumblebees Suppose that, instead of the specific nectar function in Example 2, we have an arbitrary function
    6·1 answer
  • In a word processing document or on a separate piece of paper, use the guide to construct a two-column proof proving AC &gt; EF
    12·1 answer
  • For which of the following counts would a binomial probability model be reasonable? a. The number of traffic tickets written by
    7·1 answer
  • (iii) Find the smallest whole number h such that<br>4704/h<br>is a cube number.<br>​
    15·1 answer
  • The following appeared in the magazine Financial Times, March 23,1995: "When Elvis Presley died in 1977, there were 48 professio
    5·1 answer
  • The City Library ordered a new computer system costing $158,000; it will be delivered in 6 months. The full amount will be due 3
    13·1 answer
  • ABCD is a rectangle and A and B are the points (4,2) and (2,8) respectively. Given that the equation of AC is y=x-2, find a) Equ
    13·1 answer
  • An online application charges $1.25 to download a song and $10.99 membership fee. Write an expression that gives the total cost
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!