5.4 cm on map represents 270 m
5.4 cm on map represents 27000 cm
1 cm on map represents 27000/5.4 = 5000 cm
= 50m

**Remark**

I'm going to interpret this equation as

D = ut + kt² The only difference is the 2.

**Solution**

Subtract kt² from both sides.

D - kt² = ut Now divide by u on both sides.

The t's cancel out. on the right. You are left with u on the right.

**Answer:**

3.1463

**Step-by-step explanation:**

root 2 plus root 3

√2 + √3= 1.4142 + 1.7321= **3.1463**

this is close to the value of π

**Answer: Third option.**

**Step-by-step explanation:**

** **By definition, the number 64 and the number 9 are perfect squares.

A perfect square it that number obtained by squaring a whole number.

In this case, 64 is obtained by squaring the number 8 and the number 9 is obtained by the squaring the number 3. Then:

Therefore, you can rewrite the expression as following:

This matches with the third option.

**Answer:**

Sample size is

**Step-by-step explanation:**

Given that,

Margin of error %

Confidence level %

Suppose, sample proportion

i.e.

We know that,

Margin of error

∴

squaring on both side,

∴

Hence, the sample size is,

Hence, the correct option is