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3 years ago

Which situation is an example of an observational study?

Mathematics

1 answer:

Ymorist [56]3 years ago

6 0

Answer:

it finding the number of jelly beans

Step-by-step explanation:

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line passes through the point (-3,-4) and its y-intercept is (o, -9). What is the equation of the line that is parallel to the f

12345 [234]

Answer:

$y=-\frac{5}{3}x-2$

Step-by-step explanation:

The first line has a slope of -5/3 found using the points in the slope formula.

$m=\frac{y_2-y_1}{x_2-x_1} =\frac{-9--4}{0--3}=\frac{-9+4}{0+3}=\frac{-5}{3}$

Parallel lines have the same slope. So -5/3 is the slope of the second line. Write its equation using the point slope form $y-y_1=m(x-x_1)$ .

$y--7=-\frac{5}{3}(x-3)\\y+7 = -\frac{5}{3}(x-3)\\y=-\frac{5}{3}x + 5 -7\\y=-\frac{5}{3}x-2$

7 0

3 years ago

62,81,103,126,144,144 find the median

lyudmila [28]

Answer:

I think that median is given in the picture

Step-by-step explanation:

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

8 0

3 years ago

Read 2 more answers

Which of the following is Th e equation of the boundary line shown in the following inequality?

In-s [12.5K]

Answer:

The answer is C.

Step-by-step explanation:

Mark me brainiiest.✌✌

3 0

3 years ago

Fred, Norman, and Dave own a total of 128 comic books. If Dave owns 44 of them, what is the average

iren [92.7K]

Answer:

$Mean = 42$

Step-by-step explanation:

Given

Represent Fred with F; Norman with N and Dave with D.

$Total = 128$

$D = 44$

Required

Determine the arithmetic mean of F and N

First, we have that:

$F + N + D = 128$

Substitute 44 for D

$F + N + 44 = 128$

Subtract 44 from both sides

$F + N + 44 - 44 = 128 - 44$

$F + N = 84$

Arithmetic mean of F and N is calculated as follows:

$Mean = \frac{F + N}{2}$

$Mean = \frac{84}{2}$

$Mean = 42$

7 0

3 years ago

From the definition of absolute value, |3x|= when x>=0

devlian [24]

<h3>Answer: 3x</h3>

Explanation:

When x is zero or larger, then |x| = x.

An example: |9| = 9

This applies to |3x| as well, so |3x| = 3x when $x \ge 0$

4 0

3 years ago