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Lyrx [107]
2 years ago
13

a) an angle measures 40 degrees. What is the measure of its complement? b) an angle measures 26 degrees. What is the measure of

its compliment?
Mathematics
1 answer:
slava [35]2 years ago
8 0

Complementary angles add to 90 degrees

A)  40 +c = 90

subtract 40 from each side

40+c -40 = 90-40

c = 50

The complement is 50 degrees

B)  26 +c = 90

subtract 26 from each side

26+c -26 = 90-26

c = 64

The complement is 64 degrees


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If an interior angle of a regular polygon measures 140*, how many sides does it have?
Katen [24]

Answer:

9 sides.

Step-by-step explanation:

N is the # of sides.

140 = ((n-2) x 180) / n

Multiply both sides by n

140 n = (n-2) x 180

Distribute the right side

140 n = 180 n - 360

Subtract 140 n and add 360 to both sides.

40 n = 360

n = 9

5 0
3 years ago
Earl runs 35 meters in 10 seconds. How many meters does Earl run per second?
liraira [26]
If  he ran 35 meters in 10 seconds, how many meters did he run in a second?
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3 years ago
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The circumference of a circle is 25.12cm. What is the area of the circle? Use 3.14
malfutka [58]
C=2pir
area=pir^2

given
c=25.12
25.12=2pir
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25.12=2(3.14)r
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divide both sides by 6.25
4=r

sub into other
area=pir^2
area=pi4^2
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area=16(3.14)
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3 0
3 years ago
Hey can you help me fast I am at a 83 and I need to get to a 90 on this.
jeyben [28]

Answer:

2/5

Step-by-step explanation:

First by looking, you have a slope going upward to the right so it is a positive slope.

Two points on the line that seem to go directly through the grid at the intersection points are ( -60, -90) and ( 40, -50).

Slope is Rise (y axis) over the Run (x axis).  The numbers above have x first and y second.

So the rise is the total distance between -90 and -50 which is 40.

The run is the total distance between 40 and -60 which is a total of 100.

It takes 40 units to get back to the 0 mark on the x axis and the another 60 units to get to the -60 point.

So you slop is 40/100.  You can simplify this down to 4/10 or even further to give you 2/5.

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2 years ago
The answer to the problem
Westkost [7]
The answer is: C) $3600
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3 years ago
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