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
olga2289 [7]
3 years ago
6

In the diagram below, BC is an altitude of ABD. To the nearest whole unit, what is the length of CD?

Mathematics
2 answers:
sergiy2304 [10]3 years ago
8 0
For the answer to the question above, I'll show my solution on how you can solve your problem.
AC² + BC² = AB² 
<span>5² + 12² = AB² </span>
<span>25 + 144 = AB² </span>
<span>169 = AB² </span>
<span>13 = AB </span>

<span>Triangle ABC is proportional to triangle ADB. </span>

<span><u>AC </u>= <u>AB </u></span>
<span>AB    AD </span>

<span><u>5</u> = <u>13 </u></span>
<span>13  AD </span>

<span>5AD = 169 </span>

<span>AD = 169/5 </span>

<span>AD = 33.8 </span>

<span>AD = AC + CD </span>

<span>33.8 = 5 + CD 
</span>So the answer is

<span>CD = 28.8 </span>
Lilit [14]3 years ago
3 0

Answer:

Actually the answer is 56, so D.

Step-by-step explanation:


You might be interested in
How do you calculate the area of triangle DEF?
cricket20 [7]
First you need to solve for angle F then you can use 1/2acSinB. If you haven't done this you can also use the Pythagoras theorem and solve for the unknown side once you do that you can just use 1/2 b*h
8 0
3 years ago
Read 2 more answers
O NEED HELP QUICK!!!
Wittaler [7]

Answer:

the third one is your answer

Step-by-step explanation:

5 0
3 years ago
Someone explain this?
nadya68 [22]

5\sqrt{96}.
I converted it into decimal form with a calculator and got approximately 48.9898

And if you round that, you will get the 49, which fits the inequality of

45<  5\sqrt{96} < 50 since it becomes 45 < 49 < 50 which is true

8 0
2 years ago
Read 2 more answers
A chemical company makes two brands of antifreeze. The first brand is 45% pure antifreeze, and the second brand is 95% pure anti
Dimas [21]

Answer:

42 gallons 45% antifreeze

28 gallons 95% antifreeze

Step-by-step explanation:

If x is volume of 45% antifreeze, and y is volume of 95% antifreeze, then the total volume is:

x + y = 70

And the total amount of antifreeze is:

0.45 x + 0.95 y = 0.65 (70)

Solving by substitution:

0.45 x + 0.95 (70 − x) = 0.65 (70)

0.45 x + 66.5 − 0.95 x = 45.5

21 = 0.5 x

x = 42

y = 28

7 0
3 years ago
Convert the following percent into common fractions in simplest form:<br> 5 1/3%
Tomtit [17]

Answer:

4/75

Step-by-step explanation:

you will get 5 and 1/3 percent equals (5 + 1/3) / 100 which is equal to 5/100 + (1/3) / 100 which is equal to 5/100 + 1/300. place both fractions under a common denominator. you will get 5/100 + 1/300 = 15/300 + 1/300 = 16/300. simplify the fraction to get 16/300 = 8/150 = 4/75

6 0
3 years ago
Other questions:
  • Help me out plzz and I'll do the same
    8·1 answer
  • For questions 3-4 which kind of function best models the data in the table? use differences or ratios.
    9·1 answer
  • n 1917 the cost of a first-class postage stamp was 3¢. In 1974 the cost for a first-class postage stamp was 10¢. What is the per
    7·1 answer
  • Round 492.3069 to the nearest thousandth
    11·1 answer
  • Javier and the rest of his 6th grade class are selling wrapping paper to raise money for a class trip to Washington DC.
    12·1 answer
  • Marco has a bag of 50 colored marbles.there are 12 blue marbles,18 black marbles,and 20 red marbles.what is the ratio of the num
    5·1 answer
  • Why are rates usually written as a unit rate
    13·1 answer
  • Ethan Purchased a gently used minivan 2 years ago. the current value of the van is $8000 the vans value depreciated by 11% each
    12·1 answer
  • 2. angle ABE = angle MNP <br><br> Write another valid congruency statement:​
    11·1 answer
  • Can you please help me​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!