3 years ago

Which of the statements is true?

Mathematics

1 answer:

MrRissso [65]3 years ago

4 0

Answer:

pretty sure its A cuz of the 4 90° thing.

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The number of patients treated at Dr. Jason's dentist office each day was recorded for seven days: 9,

Airida [17]

Answer:

Step-by-step explanation:

Mean: 9+6+18+2+13+3+5= 56/7 = 8

Median: 2,3,5,6,9,13,18 the middle number is 6

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7 0

2 years ago

Andre paid $13 for 3 books. Diego bought 12 books priced at the same rate.

yKpoI14uk [10]

X = $ 52 for the 12 books Diego bought

7 0

3 years ago

The following is a data set of five quiz scores.

Daniel [21]

Answer:

The mean absolute deviation is 36.8. Hope this was helpful

Step-by-step explanation:

4 0

3 years ago

2.6.5 A plant physiologist grew birch seedlings in the green-house and measured the ATP content of their roots. (See Example 1.1

Ilya [14]

Answer:

$(a)\ \bar x = 1.19$

$(b)\ \sigma_x = 0.18$

Step-by-step explanation:

Given

$n = 4$

$x: 1.45\ 1.19\ 1.05\ 1.07$

Solving (a): The mean

This is calculated as:

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x = \frac{1.45 + 1.19 + 1.05 + 1.07}{4}$

$\bar x = \frac{4.76}{4}$

$\bar x = 1.19$

Solving (b): The standard deviation

This is calculated as:

$\sigma_x = \sqrt{\frac{\sum(x - \bar x)^2}{n - 1}}$

So, we have:

$\sigma_x = \sqrt{\frac{(1.45 -1.19)^2 + (1.19 -1.19)^2 + (1.05 -1.19)^2 + (1.07 -1.19)^2}{4 - 1}}$

$\sigma_x = \sqrt{\frac{(0.1016}{3}}$

$\sigma_x = \sqrt{0.033867}$

$\sigma_x = 0.18$

4 0

3 years ago

Simplify the exoression (x^3-5x^2+7x-12)÷(x-4)<br>

kiruha [24]

Answer:

x^2-x+3

Step-by-step explanation:

You factor it out which would then make it

(x-4)(x^2-x+3)/x-4

Then you cancel out the common factor, x-4

which leaves you with x^2-x+3

4 0

3 years ago