Question

Help me please, im lost

Answer 1

Answer:

The third dot, the one closest to 4.0.

Step-by-step explanation:

To get an estimate of where √15 is, we first need to find the perfect square roots closest to it. √15 is closest to the square roots √9 and √16, which are basically 3 and 4, respectively. Since the number 15 is WAY closer to 16 than it is to 9, we can also infer that √15 is closer to √16 than √9. The only dot that reflects this answer is the third dot, so the third dot is the answer.

Hope this helps!

Answer 2

Answer:

3.9

Step-by-step explanation:

the square root of 15 is between the perfect square 9 and 16

we know if must be less than 4 so the ones place will be a 3

now create a fraction like the following:

$\frac{15-9}{16-9}$ which equals 6/7

6/7 equals 0.857 which rounds to the nearest tenth as 0.9

therefore, 3.9