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Nady [450]
3 years ago
12

Helpp pppppppp ppppppp pppppppppp

Mathematics
2 answers:
ElenaW [278]3 years ago
8 0
The original median is the number in the middle of 60, 70, 80, 80, 100, so the median is 80.
the new median is the number in the middle of 0, 60,70,80,80,100, the median is between 70 and 80, so it is 75
the original mean is (60+70+80+80+100)/5=78
the new mean is (0+60+70+80+80+100)/6=65
so the mean decreases more than the median. C is the answer. <span />
eduard3 years ago
5 0
The mean is the average. To find it we add all the data together and divide by the amount of data entries.

\frac{60+70+80+80+100}{5} =78

With 0:

\frac{0+60+70+80+80+100}{6} =65

So adding 0 will decrease the mean. In fact, adding any number that is less than the average will decrease it.

The median is the middle number. First we need to order the data from smallest to largest, then find the middle number.

60, 70, 80, 80, 100

The median is 80.

With 0:

0, 60, 70, 80, 80, 100

The median is in between 70 and 80, so we find the mean of these two number. The result is the median. So with zero, the median is 75.

With zero, both the mean and median decrease. The mean decreased by more, so the answer is the third choice.
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Answer:

You don’t need help


Step-by-step explanation:


7 0
3 years ago
Four points are always coplanar if
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For example, three points are always coplanar, and if the points are distinct and non-collinear, the plane they determine is unique. However, a set of four or more distinct points will, in general, not lie in a single plane. Two lines in three-dimensional space are coplanar if there is a plane that includes them both.
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Read 2 more answers
Which of the following graphs shows a line with a slope of zero? (pic above)
Harlamova29_29 [7]
I think it’s Graph c or b but im leaning more on b
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3 0
3 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
2 years ago
Priya, Han, and Mai each measured one of the circular objects from earlier. Priya says that the bike wheel is 24 inches. Han say
Burka [1]

Answer:

Yes they are of the same size since they have the same number and standard unit of measurement (i.e 24 inches).

Each person measures the circumference of the circle.

Step-by-step explanation:

Given that :

Priya, Han, and Mai each measured one of the circular objects from earlier.

Priya says that the bike wheel is 24 inches.

Han says that the yo-yo trick is 24 inches.

Mai says that the glow necklace is 24 inches.

Do you think that all these circles are the same size?

Yes they are of the same size since they have the same number and standard unit of measurement (i.e 24 inches).

What part of the circle did each person measure?

Each person measures the circumference of the circle.

The circumference also known as the perimeter of the circle is denoted by :

C = 2π r

The circumference of a circle is the distance round the edges of the circle.

Given that C = 24

24 = 2π r

r = 24/(2π)

r = 3.8 inches

This confirms the claim that all the circle are of the same size since they possess the same radius.

5 0
3 years ago
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