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Jlenok [28]
2 years ago
6

If arc lm = 20 ft, find the radius of N

Mathematics
2 answers:
lozanna [386]2 years ago
5 0

Answer:

120 ft

Step-by-step explanation:

60/360 or 1/6 of circle = 20 ft

full circle = 20 x 6 = 120 ft

diameter = 120/3.14 = 38.22 ft

radius = 38.22/2 = 19.11 ft

kirza4 [7]2 years ago
3 0

Answer:

Step-by-step explanation:

60° = ⅙ of 360°, so length of arc LM = ⅙ of 2πr.

20 = 2πr/6

r = 60/π ft

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kenny6666 [7]

Answer:

Step-by-step explanation:

triangle area = (length*width)/2

height(length): x

base(width): 8x

area = 45

8x^2=45

solve for x

4 0
3 years ago
the number of defectives in 10 different samples of 50 observations each is the following: 5, 1, 1, 2, 3, 3, 1, 4, 2, 3. what is
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The estimate of the population proportion of defectives is 0.05.

Given that,

There are 10 different samples of 50 observations, that is, total of 500 observations.

To find : The estimate of the population proportion of defectives

And total number of defectives from 500 observations is (5+1+1+2+3+3+1+4+2+3) = 25

Thus, the point estimate for the population proportion defectives will be,

=25/500=0.05

or just obtain the individual proportion of each sample and then take their average to obtain the same result.

Thus, the point estimate for the population proportion defectives will be 0.05

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6 0
1 year ago
If x = -4, calculate 2x squared - 5
Varvara68 [4.7K]
You just substitute the value of x in the given equation:


f(x) = 2x^2 - 5

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f(x) : a name given to the equation
f(-4): refer to the equation when the value of the independent variable x has the value between the brackets.
5 0
3 years ago
What is 6.25x + 7.50= 26.25
GarryVolchara [31]

Answer:

X = 3

Step-by-step explanation:

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3 years ago
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