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slava [35]
3 years ago
13

What is the average of 140, 130, 144, 145, 130?

Mathematics
2 answers:
diamong [38]3 years ago
8 0
The average is 137.8.
yawa3891 [41]3 years ago
8 0
To find the average you add all of the numbers roger and then decide by how many there are. So add it up and decide by 5 because there is 5 numbers. That’s your awnser
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The graph of F(x), shown below, resembles the graph of G(x) = x2, but it has
mariarad [96]

Answer:F(x)=-x2-3

Step-by-step explanation:We are given a function:

The graph of  is also shown in the given question figure.

It is a parabola with vertex at (0,0).

Sign of  is positive, that is why the parabola opens up.

General equation of parabola is given as:

Here, in G(x), a = 1

Vertex (h,k) is (0,0).

As seen from the question figure,

The graph of F(x) opens down that is why it will have:

Sign of  as negative. i.e.

And vertex is at (0,-3)

Putting the values of a and vertex coordinates,

Hence, the equation of parabola will become:

6 0
3 years ago
As you are walking down a path, you see a sign telling the path has a 2% grade (ie., a rise of 2 metres for a horizontal change
Leni [432]

Answer:

Option (A)

Step-by-step explanation:

It has been given in this question that sign telling path has a 2% grade.

2% grade means a rise of 2 meters for a horizontal change of 100 m (As given in the figure attached).

All the trigonometric ratios for the angle θ between the path and the horizontal are,

Sinθ = \frac{\text{Opposite side}}{\text{Hypotenuse}}

Cosθ = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

tanθ = \frac{\text{Opposite side}}{\text{Adjacent side}}

Since measures of the opposite side and adjacent sides are given

Therefore, tangent ratio will be applied to get the measure of the angle,

tanθ = \frac{2}{100}

θ = \text{tan}^{-1}(\frac{2}{100})

Option (A) will be the answer.

5 0
3 years ago
Q # 4 please help to solve
galina1969 [7]
The second choice - 3.1%

All you have to do is multiply the probability by itself five times to get the total probability for the next five days.

1/2*1/2*1/2*1/2*1/2 
= 1/2! 
= 1/32 
= 0.0313 
= 3.13% 

3.13 rounded off to the nearest tenth is 3.1%
There is 3.1% probability that Shania will arrive at school on time for the next five days.
4 0
4 years ago
Please help help help meee
Allisa [31]

Answer:

Kaylaa   do you use  desmos graphing calculator?  it's an online graphsing tool and would make this very easy for you. Maybe you are not allowed to use a calculator?

Step-by-step explanation:

with out  a calculator it's a long math process,  1st because each of the equations are equal to  Y,  we can set each of them equal to each other. like this

\sqrt{x-8} + 3  =  - (x-5)^{2} + 18

\sqrt{x-8}     =  - (x-5)^{2}  +18 -3

\sqrt{x-8}   =    - (x-5)^{2}  + 15

\sqrt{x-8}   = -[ (x-5)*(x-5) ] + 15

\sqrt{x-8}  = -[ x^{2} - 10x + 25] +15

\sqrt{x-8}  = -x^{2} + 10x -25 +15

 \sqrt{x-8} = -x^{2} + 10x -10

-  \sqrt{x-8}  = x^{2} - 10x +10

(-  \sqrt{x-8})^2  = (  x^{2}- 10x +10)^2

this turns into a 4 order polynomial.   I used a solver to find x

x = 8.75884....  approx

so the question asks what is the point at the nearest 1000th,  which is 8.759  

then they ask what is the point at the nearest 100th, which is  

8.76

I'm attaching the graph, if it helps  :P

8 0
3 years ago
Select the correct answer consider the function f(x)=2^x and the function g(x).
Pani-rosa [81]

Answer:

c #respectfully

Step-by-step explanation:

4 0
3 years ago
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