Answer:
Pythagoreas Theorem
Step-by-step explanation:
a^2+b^2=c^2
4^2+b^2=15^2
16+b^2=225
b^2= 209
14.45=b
Answer:
The solution is: (2, -1)
Step-by-step explanation:
First we rewrite the second system equation
→ 
Now we have the following system of equations:


To solve the system multiply the first equation by -3 and add it to the second equation


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


Now we substitute the value of y in the first equation and solve for x



The solution is: (2, -1)
Answer:
<em>(D).</em>
Step-by-step explanation:
= A +
(A). 12 + 16 > 20
(B). 10 + 18 < 30
(C). 4 + 5 < 12
<em>(D). 8 + 16 = 24</em>
Answer:
this is my old account and these still dont have answers
Step-by-step explanation:
Answer:
b
Step-by-step explanation: