Answer: m² + 3m - 10 = 0
Step-by-step explanation:
From the expression, considering
6x + 5 = m
The original expression
( 6x + 5 )² - 10 = -18 - 15
Factorize the right hand expression,
-18 - 15 = -3( 6x - 15 )
Since m = 6x + 5 , we now substitute for m in that expression
m² - 10 = -3m
Now re arrange the equation in the form,
ax² - bx + c = 0
Now back to the equation,
m² + 3m - 10 = 0,
So the equivalent equation will be
m² + 3m - 10 = 0
Answer:
(B)
Step-by-step explanation:
The given options are:
A. 2, 2, 
B. 9,40, 41
C. 
In order to prove that the given side lengths form a right triangle, we will satisfy the Pythagoras theorem.
A. 
⇒
⇒
which does not satisfy the theorem, thus this option is incorrect.
B. 
⇒
⇒
which satisfies the theorem, thus this option is correct.
C. 
⇒
⇒
which does not satisfy the theorem, thus this option is incorrect.
No not all since for example 5.0 is in decimal form but is not a rational number