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
adoni [48]
3 years ago
15

How do I solve this using the Pythagorean theorem​

Mathematics
1 answer:
charle [14.2K]3 years ago
3 0

Answer:

x=3

Step-by-step explanation:

First would need to convert the radical into a number.

And since if you have a perfect square of a radical it goes outside the square root sign, you would take the 3 and square it to make 9 and then take the 2 inside the square root sign and multiply so you have the square root of 18|

Since we have \sqrt{18} as the Leg c we would need to square it, squaring a square root sign would just cause them to be cancelled out and you being left with 18, afterwards find the square of 3, which is 9

18-9=9

square root of 9 = 3

You might be interested in
Lily is cutting a piece of yarn into 3 (three) pieces. The 2nd piece is 3 times as long as the 1st piece, while the 3rd piece is
STatiana [176]

Answer:

The length of the first piece = 41 cm

Step-by-step explanation:

Let the length of the first piece = a

Let the length of the second piece = b

Let the length of the third piece = c

we are given the following:

b = 3a . . . . . (1)     (The 2nd piece is 3 times as long as the 1st piece)

c = 6 + a  . . . . (2)    (the 3rd piece is 6 centimeters longer than the 1st piece)

a + b + c = 211 . . . . . (3)    (  the yarn has a total length of 211 centimeters)

Next, let us eliminate two variables, and this can easily be done by substituting the values of b and c in equations 1 and 2 into equation 3. this is done as follows:

a + b + c = 211

a + (3a) + (6 + a) = 211       ( remember that   b = 3a; c = 6 + a)

a + 3a + 6 + a = 211

5a + 6 = 211

5a = 211 - 6 = 205

5a = 205

∴ a = 205 ÷ 5 = 41 cm

a = 41 cm

Therefore the length of the first piece (a) = 41 cm

now  finding b and c

substituting a into equation 1 and 2

b = 3a

b = 3 × 41 = 123

∴ b = 123 cm

c = 6 + a

c = 6 + 41 = 47

∴ c = 47 cm

6 0
3 years ago
A small tree is 80 cm tall.
ruslelena [56]
1.2 meters = 120 centimeters
amount of increase = 120-80 = 40 centimeters
40 ÷ 80 = 0.5 = 50%
There was a 50% increase.
7 0
3 years ago
A ____________ has no dimension and is represented by a small dot.
monitta

Answer:

Point

Step-by-step explanation:

If you are referring to geometry

7 0
3 years ago
Rectangle A has length 12 and width 8. Rectangle B has length 15 and width 10. Rectangle C has length 30 and width 15.
Anna007 [38]

Answer:

  yes; 1.25

Step-by-step explanation:

The length to width ratios of the rectangles are ...

  A: 12/8 = 1.5

  B: 15/10 = 1.5

  C: 30/15 = 2.0

__

Rectangles A and B have the same aspect ratio, so are similar. Rectangle B is a scaled copy of A with a scale factor of 10/8 = 1.25.

7 0
3 years ago
Jared is taking inventory of the books in his school library. The graph shows the proportional relationship between the number o
KengaRu [80]

Answer:

No answer……

Step-by-step explanation:

No graph to go by.

7 0
2 years ago
Read 2 more answers
Other questions:
  • Help with monomials if u help I will reward needed!! 10 pts
    13·1 answer
  • When using your portable radio, you must push the "press to talk" button and wait one second before speaking. This is essential
    6·1 answer
  • the ratio of men to women in a certain factory is 3 to 4. there are 210 men. How many workers are there?
    15·1 answer
  • What is 1/2 (2n+6) = 5n - 12 - n
    12·1 answer
  • Insert three arithmetic means between 4 and 10.
    5·1 answer
  • Erica's parents gave her $500 for her high school graduation. She put the money into a savings account that earned 7.5% annual i
    13·1 answer
  • Select the correct answer.
    10·1 answer
  • X +1 = -5<br> Graphing linear
    9·2 answers
  • The perimeter of a triangle is 16 squar root 7 feet if two of the sides measure 343 square root feet amd 175 square root fins th
    9·1 answer
  • Giving 30 points pls answer correctly
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!