Explanation:
The expression given in the question is
Part C:
Step 1:
Solve the cube root
Step 2:
Divide within first parenthesis
Step 3:
substract within first parenthesis
Step 4:
Substract within the parenthesis
Step 5:
Simplify the exponent
Step 6:
Multiply
Part A:
The mistake made in step 2 was that the student substracted first instead of dividing with the first parenthesis first
Part B:
The mistake made in step 4 was that the student simplified the exponent first instead of substracting with the second parenthesis and then simplifying the exponent
Answer:
Step-by-step explanation:
We are trying to find the hypotenuse of a right triangle
We will use the Pythagorean theorem
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
11^2 + 7^2 = c^2
121 + 49 = c^2
170 = c^2
Taking the square root of each side
Answer:
11 25/64 in ^3
Step-by-step explanation:
Volume of a cube is given by
V = s^3
s = 2 1/4 = 9/4
V = (9/4) ^3
= 729/64
=11 25/64 in ^3