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3 years ago

Help Me PLz Quick.....I'll give out brainliest to correct answer

Mathematics

2 answers:

Blizzard [7]3 years ago

7 0

4•6•3

4•6= 24
24•3= 72

IgorC [24]3 years ago

3 0

Surface area=LW^2 + WH^2 + LH^2

SA=48+24+36

SA=106ft2

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Number of

jekas [21]

Answer:

The constant rate of change is 3

Step-by-step explanation:

Given

x y

2 6

4 12

6 18

8 24

Required

Determine the constant rate of change

Represent the constant rate of change with k.

k is calculated using:

$k = \frac{y}{x}$

When y = 24; x = 8

So, we have:

$k = \frac{24}{8}$

$k = 3$

7 0

2 years ago

A sample of 5 buttons is randomly selected and the following diameters are measured in inches. Give a point estimate for the pop

Helen [10]

Answer:

$s^2 = \frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}$

But we need to calculate the mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_I}{n}$

And replacing we got:

$\bar X = \frac{ 1.04+1.00+1.13+1.08+1.11}{5}= 1.072$

And for the sample variance we have:

$s^2 = \frac{(1.04-1.072)^2 +(1.00-1.072)^2 +(1.13-1.072)^2 +(1.08-1.072)^2 +(1.11-1.072)^2}{5-1}= 0.00277\ approx 0.003$

And thi is the best estimator for the population variance since is an unbiased estimator od the population variance $\sigma^2$

$E(s^2) = \sigma^2$

Step-by-step explanation:

For this case we have the following data:

1.04,1.00,1.13,1.08,1.11

And in order to estimate the population variance we can use the sample variance formula:

$s^2 = \frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}$

But we need to calculate the mean with the following formula:

$\bar X = \frac{\sum_{i=1}^n X_I}{n}$

And replacing we got:

$\bar X = \frac{ 1.04+1.00+1.13+1.08+1.11}{5}= 1.072$

And for the sample variance we have:

$s^2 = \frac{(1.04-1.072)^2 +(1.00-1.072)^2 +(1.13-1.072)^2 +(1.08-1.072)^2 +(1.11-1.072)^2}{5-1}= 0.00277\ approx 0.003$

And thi is the best estimator for the population variance since is an unbiased estimator od the population variance $\sigma^2$

$E(s^2) = \sigma^2$

3 0

3 years ago

The bases of a prism are always

Akimi4 [234]

Answer:

D. rectangles

Step-by-step explanation:

Perpendicular is when they cross but the base isn't perpendicular

Parallel is when two lines never touch, but in the base of a prism there are lines that touch

Intersecting is when two or more lines meet and cross over each other

6 0

2 years ago

Which of the following numbers can be expressed as decimals that terminate? 5/2 4/5 2/7 4/3

gulaghasi [49]

4/5,5/2 are the only ones that terminate

6 0

3 years ago

Read 2 more answers

Convert:<br> 2 tons 15,000 ounces = <br> ounces

amm1812

Answer 79,000
explanation 1 ton is 32,000 ounces and you have 2 so you would have 64,000 and you add the extra 15,000 to get 79,000

7 0

2 years ago