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2 years ago

Determine whether each question is biased. Explain your answer. please help!!

Mathematics

1 answer:

LenKa [72]2 years ago

3 0

I’m having a hard time understanding your question

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Dylan bought 3 identical shirts online for a total cost of $71.83 including a flat rate of $7.99 for shipping. Drag numbers to c

Masteriza [31]

Answer:

Shirt #1

x = 63.84 - y - z

Shirt # 2

y = 63.84 - x - z

Shirt # 3

z = 63.84 - x - y

Step-by-step explanation:

First calculate the value of the 3 shirts as follows:

$ 71.83 - $ 7.99 = $ 63.84.

$ 63.84.

The general equation would be, where x is the value of shirt # 1, and the value of shirt # 2 and z is the value of shirt # 3:

x + y + z = 63.84, then for each shirt would be the following equations:

Shirt #1

x = 63.84 - y - z

Shirt # 2

y = 63.84 - x - z

Shirt # 3

z = 63.84 - x - y

For example, if we give values (always the sum of both under 63.84) to two shirts, x = $ 20, y = $ 30 then the value of shirt # 3 would be:

6 0

3 years ago

The question is below (Giving Brainliest)

WITCHER [35]

Answer:

Hiya there!

Step-by-step explanation:

I'm pretty sure that its 80.

3 0

2 years ago

Read 2 more answers

1. Which polynomial is equal to (4x^2 - 3x - 1)+(-3x^2 + 5x - 8)

RSB [31]

Answer:

Step-by-step explanation:

x4+28+584+-4847-+6384

did it for me either ir you excited for the good of a great day I just want it to be a cube has

4 0

2 years ago

A teacher was interested in knowing the amount of physical activity that his students were engaged in daily. He randomly sampled

klasskru [66]

Answer:

The standard error of the mean is 4.5.

Step-by-step explanation:

As we don't know the standard deviation of the population, we can estimate the standard error of the mean from the standard deviation of the sample as:

$\sigma_{\bar{x}}\approx\frac{s}{\sqrt{n}}$

The sample is [30mins, 40 mins, 60 mins, 80 mins, 20 mins, 85 mins]. The size of the sample is n=6.

The mean of the sample is:

$\bar{x}=\frac{1}n} \sum x_i =\frac{30+40+60+80+20+85}{6}=52.5$

The standard deviation of the sample is calculated as:

$s=\sqrt{\frac{1}{n-1}\sum (x_i-\bar x)^2} \\\\ s=\sqrt{\frac{1}{5}\cdot ((30-52.5)^2+(40-52.5)^2+(60-52.5)^2+(80-52.5)^2+(20-52.5)^2+(85-52.5)^2}\\\\s=\sqrt{\frac{1}{5} *3587.5}=\sqrt{717.5}=26.8$

Then, we can calculate the standard error of the mean as:

$\sigma_{\bar{x}}\approx\frac{s}{\sqrt{n}}=\frac{26.8}{6}= 4.5$

6 0

3 years ago

Yo make lemonade you have to mix 2 quarts is water with 8 tablespoons is lemonade mix. How much mix will you need for 12 quarts

Alisiya [41]

2 quarts- 8 tablespoons
12 quarts- 8 x 6 = 48 tablespoons

6 0

3 years ago