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
Alina [70]
2 years ago
10

B 15 C А. Find the length of "a"using the Pythagorean Theorem.

Mathematics
1 answer:
Sav [38]2 years ago
7 0

Answer:

<em>a</em> = 12

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Trigonometry</u>

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

  • a is a leg
  • b is another leg
  • c is the hypotenuse

Step-by-step explanation:

<u>Step 1: Identify</u>

We are given a right triangle. We can use PT to solve for the missing length <em>a</em>.

<u>Step 2: Define</u>

hypotenuse <em>c</em> = 15

leg <em>b</em> = 9

leg <em>a</em> = ?

<u>Step 3: Find missing length </u><em><u>a</u></em>

  1. Substitute in variables:                    a² + 9² = 15²
  2. Isolate <em>a</em> term:                                  a² = 15² - 9²
  3. Exponents:                                       a² = 225 - 81
  4. Subtract:                                           a² = 144
  5. Isolate <em>a</em>:                                           a = ±12

Since we are not dealing with a quadrant triangle, we can disregard the negative root of the quadratic.

∴ <em>a</em> = 12 is our final answer.

You might be interested in
Which is the best first step and explanation for solving this system of equations?
Volgvan

Answer:

x=-4/9, y=10/3. (-4/9, 10/3).

Step-by-step explanation:

3x+4y=12

3x=2y-8

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

2y-8+4y=12

6y-8=12

6y=12+8

6y=20

y=20/6

simplify,

y=10/3

3x=2(10/3)-8

3x=20/3-8

3x=20/3-24/3

3x=-4/3

x=(-4/3)/3

x=(-4/3)(1/3)=-4/9

x=-4/9, y=10/3. (-4/9, 10/3).

7 0
3 years ago
Answer Now!! Which expression can be used to find the area, in square cm, of this parallelogram?
Phoenix [80]
A, because parallelogram is the same as a rectangle, just tilted a bit. therefore the method is just base X height.
5 0
3 years ago
(8.11×107)–(4.3×107)
stira [4]
Put it in a calculator bro
4 0
2 years ago
Read 2 more answers
What is the last digit of 2¹³?​
Hitman42 [59]

Answer:

2

Step-by-step explanation:

2^13= 8192 and the last digit is 2.

8 0
3 years ago
What is the range of the function on the graph?
Paladinen [302]
All real numbers less than or equal to 3
6 0
3 years ago
Other questions:
  • If $10000 is invested at a rate of 2.3% compounded continuously, find the balance in the account after 15 years.
    8·1 answer
  • On a test, Andre gets 4 times as many answers correct as he gets wrong. Write the ratio of questions he gets correct to the tota
    8·2 answers
  • Find the x-intercepts for the parabola defined by the equation below.<br> y=x² + 9x+ 14
    6·2 answers
  • Which graph represents a negative linear association between x and y?
    10·2 answers
  • How do I multiply whole fractions
    9·1 answer
  • Finding the Slope of a Line Given a Table
    7·2 answers
  • What’s the answer idk how to do this
    11·2 answers
  • The length of a rectangular garden is 20 feet and the width is 15 feet. What is the ratio of length to width?
    15·1 answer
  • Find the surface area of the prism. 7 yd 7 yd 7 yd​
    12·1 answer
  • How do I do these 2 questions
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!