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2 years ago

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The area of the circle above is 1,808.64 units2. what is the circumference of the circle?

1 answer:

alexandr1967 [171]2 years ago

7 0

I hope this helps you

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Alice works at a health care facility. She has measured the hemoglobin levels of 200 people. The data follows a normal distribut

rewona [7]

Since the data follows a normal distribution, the 68-95-97 rule can be used to describe the number of people falling under N standard deviations from the mean. Since the standard deviation is 1, hemoglobin levels of 13 -15 g/dL contains 68% of the sample, or 136 people. This means the 32 people have less than 13 g/dL and 32 people have more than 15 g/dL.

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2 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

Alekssandra [29.7K]

In the given figure we can determine the coordinate of point M from the graph, we get:

$M=(\frac{d}{2},\frac{c}{2})$

We can also determine the coordinates of point N as:

$N=(\frac{a+b}{2},\frac{c}{2})$

Now, to determine the length of segment MN, we need to subtract the x-coordinate of M from the coordinates of N, we get:

$MN=\frac{a+b}{2}-\frac{d}{2}$

Subtracting the fractions we get:

$MN=\frac{a+b-d}{2}$

Now, to obtain the length of AB we need to subtract the x-coordinate of A from the x-coordinate of B.

The coordinates of A are determined from the graph:

$A=(0,0)$

The coordinates of B are:

$B=(a,0)$

Therefore, the length of segment AB is:

$AB=a$

Now we do the same procedure to determine the segment of CD. The coordinates of C are:

$C=(b,c)$

The coordinates of D are:

$D=(d,c)$

Therefore, CD is:

$CD=b-d$

Now, we determine MN as half the sum of the bases. The bases are AB and CD, therefore:

$MN=\frac{1}{2}(a+b-d)$

Therefore, we have proven that the median of a trapezoid equals half the sum of its bases.

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1 year ago

For a circle with a radius of 6 meters, what is the measurement of a central angle (in degrees) subtended by an arc with a lengt

lesantik [10]

I hope this helps you

Arc length = central angle/360.2pi.r

7/3pi=?/360.2pi.6

?=7.10

?=70

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3 years ago

Read 2 more answers

What is the area of this figure?

lions [1.4K]

2×3=6. And 1/2(2×2)=2. 2+6=8. 8 square units.

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2 years ago

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Help i don't know what the answer is

____ [38]

The answer to that is -4!!

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2 years ago