Answer:
13 units
Step-by-step explanation:
Hypotenuse theory
+ =
Answer:
You need to add: <span> <span>x2</span>+x+6</span>
Explanation:
Let the unknown part be represented by A
Then we have: <span> 3x−7+A=<span>x2</span>+4x−1</span>
Subtract <span>3x</span> from both sides
<span>−7+A=<span>x2</span>+4x−3x−1</span>
but <span>4x−3x</span> is giving:
<span>−7+A=<span>x2</span>+x−1</span>
Add 7 to both sides
<span>A=<span>x2</span>+x+6</span>
So you need to add: <span><span>x2</span>+x+<span>6</span></span>
Answer: D
Explanation:
Special case:
New membership cost 65 but also free 2 class. However, the cost of a new member who takes x class where x > 2 which mean 2 or more class.
C(x) = 65$ + 15(x - 2)$