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kati45 [8]
2 years ago
8

Please help.

Mathematics
2 answers:
ipn [44]2 years ago
8 0
2£ sorry if it's wronge
Archy [21]2 years ago
7 0

Answer:

2π

Step-by-step explanation:

When a circle's radius is 1—called a unit circle—its circumference is 2π.

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Darren drank 2 liters of water.How much millilliters of water did he drank
Elodia [21]
1 liter = 1,000 ML
2 X 1,000 = 2,000 ML
2,000 milliliter is your answer
4 0
3 years ago
Find the first 5 terms of the arithmetic sequence : a(1)=-3 , a(17)=-20
madreJ [45]
The explicit formula for arithmetic sequence is:
an=a+(n-1)d
where:
a=first term
d=common difference 
given:
a3=22
a(17)=-20
substituting this in our equation we get:
22=a+(3-1)d
22=a+2d
a=22-2d........i

also:
-20=a+(17-1)d
-20=a+16d.....ii
but substituting i in ii we get:
-20=22-2d+16d
-20-22=14d
-42=14d
d=-3
but:
a=22-2d
a=22-2(-3)
a=28
thus the formula will be:
an=28-3(n-1)
thus the first term will be 28
the 2nd term will be:
a2=28-3(2-1)
a2=25

the 3rd term will be:
a3=28-3(3-1)
a3=28-6
a3=22

a4=28-3(4-1)
a4=28-9
a4=15

a5=28-3(5-1)
a5=28-3(4)
a5=28-12
a5=15

5 0
2 years ago
If right I’ll mark brainlest
zubka84 [21]

Answer:

154m^2

Step-by-step explanation:

I hope this helps.

4 0
3 years ago
Line EF is the median of the trapezoid ABCD. The median connects the midpoint of the legs of a trapezoid. Use the diagram to fin
FromTheMoon [43]

Answer:

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  • base: 18

Step-by-step explanation:

The median is the average of the lengths of the two bases:

  5x -20 = (12 + (4x -10))/2

  5x -20 = 2x +1

  3x = 21 . . . . . add 20-2x

  x = 7

Then the lengths are ...

  median = 5x -20 = 5·7 -20 = 15

  base = 4x -10 = 4·7 -10 = 18

6 0
3 years ago
A plane heads at an angle of 30 degrees West of North at a speed of 250 m/s.
Temka [501]

Answer:h

Step-by-step explanation:

6 0
3 years ago
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