3 years ago

Expand (3x-4y)^3 please answer thank you

Mathematics

2 answers:

WARRIOR [948]3 years ago

5 0

27x^3-108x^2y+144xy^2-64y^3

ale4655 [162]3 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

Josh and Lucy share some money in the ratio of 3 : 7 they share 84 in total how much money does Josh receive

Ann [662]

27.30 is the answer

7 0

2 years ago

A study on the latest fad diet claimed that the amounts of weight lost by all people on this diet had a mean of 23.2 pounds and

erica [24]

Answer:

The standard deviation of the sampling distribution of sample means would be 0.8186.

Step-by-step explanation:

We are given that

Mean of population=23.2 pounds

Standard deviation of population=6.6 pounds

n=65

We have to find the standard deviation of the sampling distribution of sample means.

We know that standard deviation of the sampling distribution of sample means

= $\frac{\sigma}{\sqrt{n}}$

Using the formula

The standard deviation of the sampling distribution of sample means

= $\frac{6.6}{\sqrt{65}}$

$=0.8186$

Hence, the standard deviation of the sampling distribution of sample means would be 0.8186.

3 0

3 years ago

Apple weights in an orchard are normally distributed. from a sample farmer fred determines the mean weight of a box of apples to

Serjik [45]

<span>Mean = 270 Standard deviation = 10 x = 255 Formula for z-score, z = (x - mean)/SD z = (255 - 270) / 10 => z = -15 / 10 => z = -1.5 So by referring to z-table, -1.5 correlates to 0.0668 that implies to 0.07 So 7% of the boxes of Apples weight less than 255oz. The percentage of boxes is in the range of 255 oz and 270 oz, Now calculating the requiring percentage 50% - 7% = 43%</span>

7 0

3 years ago

Read 2 more answers

Factor 24m-12p+7224m−12p+7224 - 12p + 72 to identify the equivalent expressions.

lord [1]

Answer:

C, A

Step-by-step explanation:

If you would like me to explain, I could but this would be difficult. Trust me.

7 0

3 years ago

Read 2 more answers