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Marat540 [252]
2 years ago
8

Which of these groups of relative frequencies would be best represented by a pie chart?

Mathematics
1 answer:
SVETLANKA909090 [29]2 years ago
7 0

All of these would be perfectly fine represented by a pie chart except A, which doesn't add to 100%.

The question seems to be getting at the idea that a pie chart might be better when the slices are all visually different sizes. I don't really think that's right; a pie chart for D say, where the two slices are about the same, gives the correct impression of the relative frequencies, which are about the same.

Answer they're looking for: C

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the perimeter of an isosceles trapezoid is 62 cm. if three sides are equal in length and the fourth side is 10 cm longer, find t
Alja [10]
Perimeter = sum of all the sides
let x = one side
longer side = x + 10
Perimeter = x + x + x + x + 10
62 = 4x + 10
4x = 52
x = 13
Longer side = 23

Area = (10+23)x2/10
         = 6.6  
5 0
2 years ago
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Mikayla is training for a half-marathon. At the beginning of her training, she is able to run 2 miles without stopping. Her goal
ivanzaharov [21]

Alright, lets get started.

At the beginning of her training, she is able to run 2 miles without stopping means 2 will be in the addition when we will write the equation for her running miles.

Her goal is to increase her distance by three quarters of a mile each week.

Means in first week, she will add the distance = \frac{3}{4} miles

Suppose she runs x weeks, so shee will add distance = \frac{3}{4}x

So, suppose she runs total number of miles = d, then

d = 2 + \frac{3}{4}x

Where d is total numer of miles she runs

x is number of weeks    :   Answer

Hope it will help :)


5 0
2 years ago
Why are you allowed to move the decimal points before dividing with decimals? Explain your reasoning. I will give the brainliest
oksano4ka [1.4K]

Answer:

so you can make both your dividend and your divisor equal so you can divide

Step-by-step explanation:

4 0
1 year ago
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for a population of 800000 subway riders, the numbers of subway trips taken per rider last january are approximately normally di
vladimir1956 [14]
So, we have
<span>Z=<span><span>x−μ / </span>σ

</span></span><span>Mean would be = 56
  30 - 56 = |-26| 4
3 - 56 = |-13|
 and
Standard deviation= 13
</span><span>2 - 1 will give us the approximate area
  95/2 - 68/2 = N

   95 -68 = 27

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<span>800,000 * .135
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4 0
2 years ago
Find the absolute maximum and absolute minimum of the function f(x,y)=2x2−4x+y2−4y+1 on the closed triangular plate bounded by t
marusya05 [52]

First check for the critical points of <em>f</em> by checking where the first-order derivatives vanish.

\dfrac{\partial f}{\partial x}=4x-4=0\implies x=1

\dfrac{\partial f}{\partial y}=2y-4=0\implies y=2

Notice how the point (1, 2) lies on the line <em>y</em> = 2<em>x</em> ; at this point, we get a value of <em>f</em>(1, 2) = -5 (MIN).

Next, check the points where the boundary lines intersect, which occurs at the points (0, 0), (0, 2), and (1, 2). We already checked the last one. We find <em>f</em>(0, 0) = 1 (MAX) and <em>f</em>(0, 2) = -3.

Now check on the boundary lines themselves. If <em>x</em> = 0, then

f(0,y)=y^2-4y+1=(y-2)^2-3

which has a maximum value of -3 when <em>y</em> = 2 (so we get the same critical point as before).

If <em>y</em> = 2, then

f(x, 2)=2x^2-4x-3=2(x-1)^2-5

with a maximum of -5 when <em>x</em> = 1.

If <em>y</em> = 2<em>x</em>, then

f(x,2x)=6x^2-12x+1=6(x-1)^2-5

with the same maximum of -5 when <em>x</em> = 1.

6 0
2 years ago
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