C=√a²+b. square both sides
c²=a²+b². subtract a² from both sides
c²-a² = b². take the square root of both sides
b=±√c²-a²
but since length can never be negative we consider only the positive root
b=√c²- a²
Answer:
Option C is correct.
The answer for the given expression is 0.
Step-by-step explanation:
Given the statement: Two times the difference of one-third of a number and three. and also variable given is 9.
Let x be the variable or number.
"One-third of a number" means 
Also, "difference of one third of a number and three " means 
Now, "Two times the difference of one-third of a number and three" means 
Then, the expression for the given statement : 
Substitute the value of x =9 in above expression we have;
=
=
= 0
therefore, the answer for the given expression is, 0
Answer:
Very first one, A
Step-by-step explanation:
weight loss is negative weight gain is positive
198 -5 -2.5 -2.5+3.5 = 191.5 lbs
Add -2x to both sides to get 'x' on one side of the equation
-2x-3=4x-15
+2x +2x
__________
-3=6x-15
add 15 to both sides to isolate 6x
-3=6x-15
+15=6x+15
__________
12=6x
divide both sides by 6 to get 'x' alone
12=6x
/6=/6
_____
2=x
so your answer is 2=x or you can flip it and it will be the same, x=2