Answer: +42x
Step-by-step explanation:
The student only multiplied each term individually.
He should have (7x+3)² = (7x+3)(7x+3)
Which is 49x²+42x+9
Therefore the error is (42x) or the failure to apply the law of multiplication of variables in a bracket.
1. 28 x 3/4 = 21 kg
2. 1 hr = 60 mins
=》 1/4 hr = 60/4 = 15mins
Answer:
5,000
Step-by-step explanation:
When a number is 5 or above, you would round up. When it is below 4 or below, you round down.
Since 5,182 the 1 is below 1, 5 would remain the same.
72+28+66+81=297
360-297=63
She would need to score 63 on her last exam.
The answer is
A.
Hope This Helps