Question

Which of the following are equal to the expression below?

Answer 1

One minute while I place inthe answers

Answer 2

\[2*\sqrt{25}\]

Answer 3

50
25
100
sqrt(100)
sqrt(50)
10

Answer 4

Which are equal to 2*sqrt(25)

Answer 5

50
25
100

logically, you know it can't be those, right?

Answer 6

I'm quite sure 10 is, becuase sqrt(25)=5 and 2*5=10.

Answer 7

Yes I would think

Answer 8

10 is one, of them but there is also one more.

Answer 9

2=square rt of 4

Answer 10

Is it sqrt(50)

Answer 11

No

Answer 12

oh

Answer 13

\[\sqrt{4}\times \sqrt{25}\]

Answer 14

You can only multiply if they are both in radicals

Answer 15

Then obviously sq rt of 100=10

Answer 16

Ohhh I see! Cause' the sqrt(4)*sqrt(25)=sqrt(100)

Answer 17

yep.

Answer 18

Ok that makes sense! thanks!

Answer 19

You've been very helpful today. I'm very thankful

Answer 20

\(2 \times \sqrt{25} = 2 \times 5 = 10\)
You need answers that are equal to 10.
Immediately, you can eliminate the first three.
\(\cancel{50}\)
\(\cancel{25}\)
\(\cancel{100}\)
sqrt(100)
sqrt(50)
10

Answer 21

Since the answer is 10, you can also immediately count this one in (in red):

\(\cancel{50}\)
\(\cancel{25}\)
\(\cancel{100}\)
sqrt(100)
sqrt(50)
\(\color{red}{10}\)

Answer 22

Finally, look at \(\sqrt{100} \). It equals 10, so that one is in, which means \(\sqrt{50} \) must be out.

\(\cancel{50}\)
\(\cancel{25}\)
\(\cancel{100}\)
\(\color{red}{\sqrt{100}} \)
\(\cancel{\sqrt{50}} \)
\(\color{red}{10}\)