Solved on Nov 13, 2023

Estimate 15\sqrt{15} to the nearest tenth, then locate it on a number line.

STEP 1

Assumptions1. We are asked to estimate 15\sqrt{15} to the nearest tenth. . We are also asked to locate 15\sqrt{15} on a number line.

STEP 2

First, we need to find two perfect squares that15 lies between. The perfect squares closest to15 are16 and9, which are the squares of4 and respectively.

STEP 3

Since15 is closer to16, we can say that 15\sqrt{15} is slightly less than.

STEP 4

To estimate 15\sqrt{15} to the nearest tenth, we can start by trying3.9.3.92=15.213.9^2 =15.21

STEP 5

Since 3.923.9^2 is greater than15, we can try a smaller number. Let's try3.8.
3.82=14.443.8^2 =14.44

STEP 6

Since 3.823.8^2 is less than15, and 3.923.9^2 is greater than15, we can conclude that 15\sqrt{15} is between3.8 and3.9.

STEP 7

To estimate to the nearest tenth, we can choose the one that is closer to15. Since 3.923.9^2 is closer to15 than 3.23.^2, we can estimate 15\sqrt{15} to be approximately3.9.

STEP 8

Now, to locate 15\sqrt{15} on a number line, we need to mark the points3 and4 on the number line as 15\sqrt{15} lies between them.

STEP 9

Then, we can mark the point slightly less than4 as 15\sqrt{15}, since we estimated it to be3.9.
So, the estimated value of 15\sqrt{15} is3.9 and it lies slightly less than4 on a number line.

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