Answer:
<em>12^2 + x^2 = 13^2</em>
Step-by-step explanation:
The student's error was that he didn't use the Pythagorean Theorem correctly
According to the Pythagorean Theorem, <em>a^2 + b^2 = c^2</em>, where c represents the hypotenuse
However, the student replaced <em>c</em> with <em>x</em>, which isn't the hypotenuse
The hypotenuse is 13, so <em>c</em> should be 13, not <em>x</em>
-883, -321, -6/7, -5/7, -4/7
Answer:
The bus is late 4 times in March.
Step-by-step explanation:
Solving this problem is very easy, using this formula:
20(0.2) = times late in March
(The 0.2 is the decimal form of 20%)
This is equal to 4, the times in March when the bus was late.
7+6. is one of them hope this helps
EXPAND-x^{2} +-8x+-7x+56
SIMPLIFY- x^{2} +15x+56
