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
lorasvet [3.4K]
4 years ago
11

Find the value of a. Picture below

Mathematics
2 answers:
Arada [10]4 years ago
8 0

Use the Pythagoream theorem. Note that 20 is the longest side, and is c

a² = c² - b²

c = 20, b = 12, a = a

Plug in corresponding numbers to corresponding variables

a² = (20)² - (12)²

Simplify

a² = 400 - 144

Simplify. Combine like terms

a² = 256

Isolate the a. Root both sides

√a² = √256

a = √256

a = 16

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

16 is your answer for a

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

hope this helps

Klio2033 [76]4 years ago
6 0
The answer is A=58 i think
You might be interested in
The price of a gallon of milk was $2.65. The price rose y dollars after the last hurricane. Then the price dropped $0.15 and lat
julia-pushkina [17]

The expression that represents the current price of milk is y +2.55. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

4 0
4 years ago
Read 2 more answers
If f(x)=4x3+3x2−5x+20 and g(x)=9x3−4x2+10x−55, what is (g−f)(x)?
Montano1993 [528]

Answer:

Step-by-step explanation:

(g-f)(x) = 9x³ - 4x² + 10x - 55 - [ 4x³ +3x² - 5x + 20]

To remove the parenthesis, take - inside, multiply f(x) by -1

= 9x³ - 4x² + 10x - 55 -  4x³ - 3x² + 5x - 20  

Now, bring like terms together,

= 9x³ - 4x³ - 4x² - 3x² + 10x + 5x - 55 - 20

= 5x³ - 7x² + 15x - 75

3 0
4 years ago
Use the interactive tool to find the difference. (–4) – 6
elena55 [62]

(−4)   −   6

<u>Remove Parenthesis</u>

-4     -     6

<u>Subtract the numbers: </u>  

- 4    -    6    =   10

=         −4         −6

=        −4        +       −6

<u>Answer       =      −10</u>




Hope that helps!!!                                    : )

6 0
3 years ago
Read 2 more answers
Kevin's work for deriving the equation of a circle is shown below. x2 + 4x = −(y2 − 20) step 1 x2 + 4x = −y2 + 20 step 2 x2 + 4x
SVEN [57.7K]
We have the following equation:
 x2 + 4x = - (y2 - 20)
 Let's review step by step:
 step 1:
 
x2 + 4x = -y2 + 20
 Answer: OK
 step 2:
 
x2 + 4x + 4 = -y2 + 20 - 4
 Answer: Wrong
 The correct step is:
 x2 + 4x - 4 = -y2 + 20 - 4
 Or equivalently:
 x2 + 4x + 4 = -y2 + 20 + 4
 Answer:
 
he did make an error in his work in step 2
7 0
4 years ago
5.
Tasya [4]

Answer:

<STR = 38degrees

Step-by-step explanation:

Find the diagram attached

Complete Question:

In Rhombus QRST, diagonals RT and QS are drawn. If m<TSR = 104°, then which of the following is the measure of <SRT?

Sicne triangle STR is isosceles, hence the base angles are equal. Let the base angles be y

y+y+104 = 180

2y = 180-104

2y = 76

y = 38degrees

Since <STR = y, hence the measure of <STR = 38degrees

8 0
3 years ago
Other questions:
  • Hi can you help me please?)
    11·2 answers
  • How many 1/3 cups are in 2/3 cup?
    10·1 answer
  • What is 27,364 rounded to the nearest ten thousand​
    11·1 answer
  • BETT NONE OF YOU CAN DO THIS ILL MARK YOU HIGHEST GO AHEAD AND TRY IT
    9·1 answer
  • Order the following values from least to greatest: 1/8, 1.125, and 2/5%.
    10·2 answers
  • Tom is building a pool. He plans to dig a hole 20 feet wide and 50 feet long. He wants the pool to hold 7500 cubic feet of water
    8·1 answer
  • Please help me i rlly need help
    8·1 answer
  • 2+6i/2-4i = a + bi What is the value of a? What is the value of b?
    11·1 answer
  • Minh and Mikayla are selling wrapping paper for a school fund-raiser. Customers can
    10·1 answer
  • How many 2/3's are in 1?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!