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
rosijanka [135]
3 years ago
9

Please answer and help me on this question!​

Mathematics
1 answer:
Nady [450]3 years ago
4 0
<h3>Answer: 10.1 cm approximately</h3>

=====================================================

Explanation:

The double tickmarks show that segments DE and EB are the same length.

The diagram shows that DB = 16 cm long

We'll use these facts to find DE

DE+EB = DB

DE+DE = DB

2*DE = DB

DE = DB/2

DE = 16/2

DE = 8

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

Now let's focus on triangle DEC. We just found the horizontal leg is 8 units long. The vertical leg is EC which is unknown for now. We'll call it x. The hypotenuse is CD = 9

Use the pythagorean theorem to find x

a^2+b^2 = c^2

8^2+x^2 = 9^2

64+x^2 = 81

x^2 = 81 - 64

x^2 = 17

x = sqrt(17)

That makes EC to be exactly sqrt(17) units long.

If you follow those same steps for triangle ADE, then you'll find the missing length is AE = 6

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

So,

AC = AE+EC

AC = 6 + sqrt(17)

AC = 10.1231056256177

AC = 10.1 cm approximately

You might be interested in
Graph the given line.<br>y = 2x +4​
seraphim [82]
Y=2x+4
(refer to the pic)

6 0
3 years ago
Having trouble with these questions, please help.
12345 [234]
The Empirical Rule affirm:

99.7 % random variable values are between
±
three standard deviation.

95 % random variable values are between
±
two standard deviation.

68 % random variable values are between
±
one standard deviation. There you go!
7 0
2 years ago
Read 2 more answers
Solve each absolute value equation number 1 |2x-3|=7​
Dmitriy789 [7]

Answer:

x = -2,  5.

Step-by-step explanation:

|2x - 3| = 7

2x - 3 = 7

2x = 10

x = 5 or:

2x - 3 = -7

2x = -4

x = -2.

3 0
3 years ago
Determine the range of the function. (0,2) (2,4) (4,6) (6,8) (8,10)
stealth61 [152]
The answer might be f(x)≥2
7 0
3 years ago
Read 2 more answers
The output of a function in 7 more than 3 times the input. find the input when the output is -8
kiruha [24]
7+ 3x= -8 
-8-7=-15
-15 divided by 3= -5
-5 is the answer
4 0
4 years ago
Other questions:
  • Solve the system by substitution<br><br>6x+2y=26 <br>x=6y+21
    8·1 answer
  • Put the following numbers in order from least to greatest 5,-3,9,6,-5,0,-10
    6·2 answers
  • Given the sets a={0,1,2,3,} b={a,b,c,d} c={0,a,2,b}. Find B u c
    6·1 answer
  • If l is a vertical line passing through points A(a, b) and B(c, d), then what can you say about a and c?
    9·1 answer
  • 35 Points !
    5·1 answer
  • PLEASE HELP A BROTHA OUT<br> Find sinC
    11·2 answers
  • In a survey of 480 students, 253 indicated that play the piano, 268 indicated that they play the harp and 73 indicated they play
    10·1 answer
  • A quarter has a diameter of 2.4. if it makes 8 rotations how far did it roll
    10·2 answers
  • Complete the diagram below by filling in the measures of each angle
    9·1 answer
  • A room is three times as long as it is broad and it's height s 4.5 m. if the cost of carpeting its floor at rs 240 per m square
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!