Answer:
Work shown below!
Step-by-step explanation:
Number 12a:
Number 12b:
Solve the formula for h, so you need to isolate/get h by itself in the equation:
A = 1/2bh Multiply the inverse of 1/2, which is 2/1 or 2 on both sides to get rid of the 1/2
2A = bh Now divide by b on both sides
Your answer is C
Answer: A . Not all 2 × 2 matrices have an inverse matrix. If the determinant of the matrix is zero, then it will not have an inverse; the matrix is then said to be singular. Only non-singular matrices have inverses.
Step-by-step explanation:
Answer:
Step-by-step explain
First convert to inches. 7 x 12= 72 72+12=84
Total is 84 x 4= 336