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Ne4ueva [31]
2 years ago
14

The radius of a circle is 4 millimeters. What is the circle's area? Use 3.14 for pi.

Mathematics
2 answers:
tatuchka [14]2 years ago
8 0

Answer:

c. 50.24 square millimeters

Step-by-step explanation:

Radius of circle = 4 milimeters.

Area of a circle = πr²

Area = 3.14 × 4² (π = 3.14)

= 50.24 square millimeters

viva [34]2 years ago
5 0

Answer:

50.24 mm^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2  where r is the radius

A = 3.14 ( 4)^2

   = 50.24 mm^2

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In order to determine if there is a significant difference between campuses and pass rate, the chi-square test for association a
RUDIKE [14]

Answer:

57.5

Step-by-step explanation:

The expected frequency of West Campus and Failed :

Let :

Failed = F

East Campus = C

West Campus = W

Passed = P

Frequency of FnW :

[(FnE) + (FnW) * (PnW) + (FnW)] / total samples

[(52 + 63) * (63 + 37)] / 200

[(115 * 100)] / 200

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n(Failed n East campus)

5 0
2 years ago
Points (0,12) and (1,3) in linear function
puteri [66]

Answer:

y = -9x + 12

Step-by-step explanation:

first find the slope

m= <u>3 - 12</u>

1 - 0

m = -9

y = mx + b

y = -9x + 12

(the 12 is the y intercept and is given in the question so there is no need to solve for it)

3 0
3 years ago
Find the Area of the figure below, composed of a rectangle with two semicircles removed. Round to the nearest tenths place.
Allisa [31]

Answer:

21.8

Step-by-step explanation:

hii so basically first we find the area of the 9 by 8 and subtract the area of the semicircles.

area of circles are πr^2, so in this situation

π4^2 which is 16π.

with this, the semicircle which is half a circle would give us

16π/2 which is 8π.

but then, we have two semicircles removed so we would have as an answer:

(9*8)-8π+8π

72-16π

then you would have to round so

16π is around 50.2

so 72-50.2 is 21.8

i hope this helped you <33

6 0
3 years ago
Okay last one then I’m done :)
kaheart [24]
The greatest common factor is simply w. 
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3 years ago
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oee [108]
1/2 * 1/2 * 1/2 * 1/2 * 1/2 = <span>0.03125 = 1/32 This is your answer


</span>
8 0
3 years ago
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