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
Svetlanka [38]
3 years ago
6

I Need The Answer Plz!!! Geometry Is Hard!!!

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
4 0

Answer:

B. 10

Step-by-step explanation:

First, we need to recognize that the two triangles are similar (the triangle with a leg value of 21 and the triangle with a leg value of 4 and hypotenuse x)

Let's first label the leg of the second triangle as y.

Then, we can set up this equation

\frac{21}{y} =\frac{y}{4}

Cross multiplying gives us

84=y^2

So, y=sqrt(84) or 2 sqrt(21).

Now, using the pythagorean theorem, we get

4^2+2sqrt(21)^2=x^2

100=x^2

x=10

You might be interested in
Select all the correct answers.
alexira [117]

Answer:

first and third and fifth

Step-by-step explanation:

big brain time

5 0
3 years ago
Read 2 more answers
Help Me Plzzzzz
Anastaziya [24]

Step-by-step explanation:

wheres the decimal to compare it to

6 0
3 years ago
Read 2 more answers
You cut off half of a strip of paper.Then you cut off half of the piece that is left.Then you cut off half of the remaining piec
7nadin3 [17]

It goes like this 1/2, 1/4, 1/8. But if your asking about what fraction didn’t get affected than that just zero because the original peace was cut in half.

If that’s not what you mean can you please elaborate to me!

7 0
3 years ago
Ravi walks 3.5km every day. How far does he walk in 7 days?
kolbaska11 [484]
24.5 you take 3.5 and times it by 7 do get the distance.

4 0
3 years ago
Read 2 more answers
By using the table in the handbook, the present value of $12,000 for six years compounded at 6 percent semiannually is
denis23 [38]
Take a look at the attachment to see the solution.
A = future value
P = principal (P = 12,000)
r = interest rate (r=6)
n = time periods (n=12)

6 0
3 years ago
Other questions:
  • If a standard die is rolled twice, what is the probability that it lands on a
    7·1 answer
  • Simplify by adding like terms 5w+4wx+3+wx+3w+3+6w<br> please show work?
    15·2 answers
  • True or False: The total operating costs = fixed costs – variable cost.
    13·2 answers
  • When x=8 y=20 find y when x=42
    11·1 answer
  • My answer is 11 what is the value of the tens digit ? Explain how you know
    5·2 answers
  • A prof should be have more steps in the reason column than steps in the statement column sometimes, true or never true
    7·1 answer
  • I dont know what to do​
    15·1 answer
  • This is the question ^^ help
    15·1 answer
  • What is the slope of the line?<br> (0,2) (4, -1)
    10·1 answer
  • HELP ME PLEASE WILL GIVE BRAINLY
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!