**Answer:**

2(4)+6

8+6

14

**Step-by-step explanation:**

**Answer:**

The tabulated value is less than the calculated value, therefore we accept the null hypothesis and It show that there is a difference in the mean overall distance of brands.

**Step-by-step explanation:**

The given data sets are

Brand 1: 277 278 287 271 283 271 279 275 263 267

Brand 2: 262 248 260 265 273 281 271 270 263

We need to check that whether there is a difference in the mean overall distance of brands or not.

**Null hypothesis:**

**Alternative hypothesis:**

The data is normally distributed, we assume that the variances are equal so we will apply t-test.

The formula for t-statistics is

where,

The value of t is

Degree of freedom is

From t-table the t-value for 0.05 level of significance at 18 degree of freedom is ±2.1009.

**Since the tabulated value is less than the calculated value, therefore we accept the null hypothesis and It show that there is a difference in the mean overall distance of brands.**

The square root of 2 is about i would say 1 or 1.5 or 0.5 any of those work you would surely get the right answer ;)

**Answer:**

x ≠-2/3

**Step-by-step explanation:**

We cannot have the denominator of a fraction equal zero

3x+2 cannot equal zero

3x+2≠ 0

Subtract 2 from each side

3x+2-2≠ 0-2

3x ≠ -2

Divide each side by 3

3x/3 ≠ -2/3

x ≠-2/3

<span> (x - 3b3) • (5b3 - x)
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i hope this helps

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