Answer:
A. √16
Step-by-step explanation:
A perfect square is any number that can be expressed as a product of an integer and itself. i.e. 4 can be represented as 2 × 2. Therefore, 4 is a perfect square.
From the options given, the only radical expression that has two perfect square is √16.
√16 consists of two perfect squares, which are 4 and 4.
4 can be expressed as 2 × 2.
Thus: √16 = √(2 × 2)(2 × 2).
Therefore, √16 consists of two perfect squares.
Answer: Definitely C (and I'm assuming A since there are 2 answers but I can't see A that well)
Step-by-step explanation: Its not B because B is 7
Its not D because D is 5
Its not E because E is 7
You are looking for -3, so C is the only correct on.
Not sure about A. I can't see it
Answer: 47.5 seconds
Step-by-step explanation:
380=2x+6x
8x=380
x=47.5 s
Hope this helped!
Its 100 because its not rounded to the nearest whole like 200 because its less than 50 so it would round down
