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astra-53 [7]
3 years ago
15

Find the mean of the following,-6,-10,-4,8,9,-2,5,6.​

Mathematics
1 answer:
andre [41]3 years ago
8 0

mean =  \frac{sum \: of \: all \: observations}{number \: of \: observations}  \\  =  > mean =  \frac{( - 6) + ( - 10) + ( - 4) + 8 + 9 + ( - 2) + 5 + 6}{8}  \\  =  > mean =  \frac{6}{8}  \\  =  > mean = 0.75

This is the answer.

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Y-y2= m(x-x) coordinates of a point on the line ​
mario62 [17]

Answer:yes 5,5

Step-by-step explanation:

6 0
3 years ago
Pls helpppppp !!<br> tysmmmm &lt;33
12345 [234]

Answer:

180

Step-by-step explanation:

From basic rules of a triangle we know that the interior angles of a triangle have to add up to equal 180°

But here is a formula for future references for finding the sum of the interior angles

interior angle sum = (n-2)180

where n = number of sides

and here is an example:

a triangle has 3 sides so we plug in 3 for n

(3-2)180

3-2=1

1*180 = 180

so the interior angles add up to equal 180

8 0
3 years ago
What is the slope of the line passing through (-3, 5) and (5, -3)?
Liula [17]
The slope of the line is 1.
4 0
4 years ago
Read 2 more answers
An airplane begins a descent to a sea-level airport at an angle of -4° to the horizon. What is the change in elevation after it
mote1985 [20]

Using the slope concept, it is found that the change in elevation was of -699 feet.

<h3>What is a slope?</h3>

The slope is given by the <u>vertical change divided by the horizontal change</u>, and it's also the tangent of the angle of depression.

In this problem, we have that:

  • The vertical change is of h.
  • The horizontal change is of 10,000 feet.
  • The angle is of -4º.

Hence:

tan(-4º) = h/10000

h = 10000 x tan(-4º)

h = -699.

More can be learned about the slope concept at brainly.com/question/18090623

#SPJ1

7 0
2 years ago
the current value of a new car is 18,000. the car will depreciate 15% per year over the next 5 year. which exponential equation
Arte-miy333 [17]

The exponential equation that models this situation is:

V(t) = 18000(0.85)^t, 0 \leq t \leq 5.

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

A(t) = A(0)(1 - r)^t

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

For this problem, the parameters are:

A(0) = 18000, r = 0.15.

Hence the equation for the value of the car over the next 5 years is:

A(t) = A(0)(1 - r)^t

A(t) = 18000(1 - 0.15)^t

V(t) = 18000(0.85)^t, 0 \leq t \leq 5.

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

4 0
2 years ago
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