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Dimas [21]
3 years ago
7

PLEASE PLEASE HELP ME I NEED THE ANSWER ASAP!

Mathematics
2 answers:
zhuklara [117]3 years ago
8 0
The one you chose is correct  2, 5, 12, 12, 14, 15, 18, 24, 24
0,9 = 2       2, 5

10,19 = 5       12, 12, 14, 15, 18

20,29 = 2           24, 24

30,39 = 0
Romashka [77]3 years ago
8 0

Answer:

The answer would be

0-9 =2

10 - 19 = 5

20 - 29 = 2

30 - 39 = 0

Step-by-step explanation:

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How to find the slope<br>​
Ostrovityanka [42]

Answer:

Step-by-step explanation:

The slope of a line characterizes the direction of a line. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points

7 0
3 years ago
Read 2 more answers
I need to find the perimeter and area of the regular polygon.
mezya [45]
The area of a polygon is given by the formula Area = ap/2 where a is the length of the apothem and p is the perimeter. The apothem is a line from the center of the polygon perpendicular to a side.

Depending on the formula you know, you can find the length of a side in 1 of 2 ways. 

The first way uses a triangle. Using the radius of the polygon you can create 8 congruent triangles. The center angle will be 360 / 8 = 45 and two side lengths of 20. You can find the length of the base using the law of cosines.

c^2 = 20^2 + 20^2 - 2(20)(20)(cos 45)
c^2 = 400 + 400 - 800(cos 45)
c^2 = 800 - 800(cos 45)
c = sqrt(800 - 800(cos 45)
c = 15.31

The second way is to use this formula:
r = s / (2 sin(180 / n))
20 = s / (2 sin(180/8)
(20)(2)sin(22.5) = s
(40)sin(22.5) = s
s = 15.31

We need to calculate the perimeter. As there are 8 sides (8)(15.31) = 122.48
Now we need to calculate the apothem using

a = S / (2 tan (180 / n)
a = 15.31 / (2 tan (180 / 8))
a = 18.48

Now solve for the area

Area = ap/2
Area = (18.48)(122.48)/2
Area = 1131.72

perimeter = 122.48
area = 1131.72
7 0
3 years ago
3 (a) Simplify e+ es
ANEK [815]

Answer:

I don't understand your question but here's some sample of simplify

Step-by-step explanation:

Simplify –(46x2y3z)0

The parenthetical portion still simplifies to 1, but this time the "minus" is out in front of the parentheses; that is, it's out from under the power, so the exponent doesn't touch it. So the answer in this case is:

–(46x2y3z)0 = –1

7 0
2 years ago
Simplify the expression -3 (b-7)
Nataliya [291]
Simply distribute the -3 across the b and -7.

-3(b - 7) = (-3 * b) + (-3 * -7) = -3b + 21

Hope this was helpful, if it wasn't just drop me a DM explaining what didn't make sense.
5 0
3 years ago
Which of the following sets of lengths can be used to form the sides of a triangle? Explain your reasoning.
Bad White [126]

Answer:A can be use to form a triangle.

Step-by-step explanation:

a+b>C

5+18 >20

23>20

SO this is a triangle since if you add A and B together it is greater than C.

7 0
3 years ago
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