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
aksik [14]
3 years ago
11

Find the value of x A. 2 B. 4 C. 6 D. 8

Mathematics
2 answers:
nasty-shy [4]3 years ago
6 0

Hello from MrBillDoesMath!

Answer:

Choice B, 4


Discussion:

From the Pythagorean Theorem


x^2 + ( x-2)^2           =    ( sqrt(20) ) ^ 2     =>

x^2 + ( x^2 - 4x + 4) = 20                            => combine common terms

2x^2 -4x + 4 = 20                                        => divide both sides by 2

x^2 -2x + 2 = 10                                           => subtract 10 from both sides

x^2 -2x - 8 = 0                  => x^2 -2x - 8 = (x-4)(x+2)

(x-4)(x+2) = 0                    =>

x = 4, x = -2

The answer is Choice B, 4


Thank you,

MrB

tia_tia [17]3 years ago
3 0
The answer would be B.
You might be interested in
Find the difference -1/10 - 8/10<br><br>-9/10 <br><br>9/10 <br><br>-7/10<br><br> 7/10
TEA [102]

The answer to this would be A: -9/10. Hope this helps!

5 0
3 years ago
Read 2 more answers
Use the distributive parenthesis: 7(m + 9)<br> will give brainliest if answered correctly!
Phantasy [73]

Answer:

The simplified answer would be 7m+63. You would have to solve for the variable.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
What is the median of the data set? 15, 19, 20, 22, 26, 30, 31
Paladinen [302]

Answer:

C. 22

Step-by-step explanation:

The median is the middle number of the set if the numbers are in order from least to greatest.

This set of numbers is in order, so the median is the middle number = 22

7 0
2 years ago
How many year and months did it take to build blackpool tower england
jeka57 [31]
<span>The Blackpool Tower took 3 years to build using about 2,500 tons of steel and 5,000,000 bricks. The tower was officially opened to the public in 1894. The architects of the project, Messers Maxwell and Tuke, died before the building was completed.</span>
5 0
3 years ago
Read 2 more answers
I need help solving these equations because my mathematics teacher didn't explain as well.​
natka813 [3]

Answer:

so to find slope for ordered pairs do y-y over x-x make sure the ordered pairs match up vertically

5 0
2 years ago
Other questions:
  • What is the standard form of the equation of the circle with center (-2, -3) and a radius of √2/4?
    9·1 answer
  • Help please!!!!!!!!!!
    9·1 answer
  • What is the lateral surface area of a cylindrical-shaped candle with a radius of 4 cm and a height of 14 cm? (Use 3.14 for pi .)
    7·2 answers
  • Question
    5·1 answer
  • PLEASE SOLVE FOR B. PLEASE HELP VERY URGENT!
    10·1 answer
  • PLEASE HELP!! WILL NAME BRAINLIEST!! Look at the table that represents the local store. For each row in the table, find the rati
    10·2 answers
  • (-2, 11) &amp; (5,6)<br> What is the slope of the equation between these two points?
    6·1 answer
  • Question 1a: Given the function below. find f(-2)<br> f (x) = x2 + 4x - 5<br> E<br> Your answer
    6·1 answer
  • What is the range of this box plot?<br> Select one:<br><br> 9<br><br> 4<br><br> 6<br><br> 7
    15·2 answers
  • Pls help with this question ASAP
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!