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
geniusboy [140]
3 years ago
9

Anybody know the answer?

Mathematics
1 answer:
marysya [2.9K]3 years ago
6 0
I'd start by writing an equation for each of the right triangles. (Pythagorean theorem)

y² + 9² = z²
x² + z² = (4+9)²
4² + y² = x²

we want to find z so combine the equations by substituting the other variables x,y out.

substitute y² for (x² - 4²) in 1st equation.

(x² - 4²) + 9² = z²

now by rearranging the 2nd equation we can substitute x² for (13² - z²)

(13² - z²) - 4² + 9² = z²
169 - z² - 16 + 81 = z²
234 - z² = z²
234 = 2z²
234/2 = z²
117 = z²
√(117) = z
√(9*13) = z
3√(13) = z

13 goes in the box




































You might be interested in
Yolanda spends 82/3 hours per month playing soccer. Approximately how many hours does she play soccer in a year?
Vesnalui [34]
328 because 82/3 multiplied by 12 is 328 and you do that because there's 12 months in a year and if you spend 82/3 hours per month playing soccer than you would multiply that by 12 which gives you 328 hours.
7 0
3 years ago
Rewrite the equation in standard form y= 4/5x+0.85. Enter answer as ax+by=c or ax+by+c=0
Paraphin [41]

At very minimum, move (4/5)x to the other side of the given equation.  Then:

-(4/5)x + y = 0.85.  This is the equation in standard form.

3 0
3 years ago
When Jeremy made 8 black and white copies and 2 color copies at a copy shop, the cost was $1.20. When he made 10 black and white
NNADVOKAT [17]
I think it’s A and it’s B at the most but still...A
3 0
3 years ago
Can sum1 answer asap and pls give explanation :)
Tju [1.3M]

Answer:

whats the question

Step-by-step explanation:

?

6 0
3 years ago
Read 2 more answers
Identify the slope and y-intercept of a graph of the equation y=1/2x-5
ehidna [41]

Answer:

Slope: 1/2

y-intercept: -5

(✿◠‿◠)

7 0
3 years ago
Other questions:
  • Given the geometric sequence: -880, -220, -55,... <br> the next term in the sequence is?
    7·2 answers
  • What is the value of x?
    14·2 answers
  • Expand &amp; simplify (x-2)(x+4)
    13·2 answers
  • Can someone please help me with this problem<br>​
    12·1 answer
  • makayla's local movie theater has a movie goer club that charges an annual registration fee of $25. however, movie tickets are d
    10·1 answer
  • If JK= 2x, KL=8, and JL= 4x, what is JK?
    5·1 answer
  • Find the length of CE
    14·1 answer
  • Write the algebraic expression for “twice a number n decreased by seven”
    14·1 answer
  • Katie dropped 5 nickels on the floor. What is the probability that all the nickels will land with heads facing up?
    14·1 answer
  • Help me please i need help im terable at math
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!