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Ugo [173]
3 years ago
6

Estimate the circumference of a circle that has a diameter of 6 ft.

Mathematics
1 answer:
irga5000 [103]3 years ago
7 0
The formula for circumference is C = 2πr, where r is the radius of the circle. However, the radius is half the diameter, so the circumference could also be calculated using the formula C = πd, where d is the diameter of the circle. π is commonly shortened to 3.14.

If the diameter of the circle is 6 feet, an estimate of the circle's circumference is 6 times 3 feet or 18 feet.

Answer:
18 ft
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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
3 years ago
Write an equation in point-slope form of a line with a slope of –4 that goes through the point J(–5, 6).
Fittoniya [83]
The equation is y = -4x + 26.
5 0
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Alex skipped a jump rope 50 times every minute as shown by this table. x equals the number of minutes, and y equals the
KIM [24]

Answer:

Y = 50x

Since every minute he jumps 50 times, we multiply 50 by the amount of minutes (x)

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2 years ago
Required
snow_lady [41]

Answer:

19

Step-by-step explanation:

70 - 51 = 19

To check:

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6x−3y=5 y−2x=8 ​ How many solutions does the system have?
zhuklara [117]

No Solutions because there are too many = signs.

3 0
3 years ago
Read 2 more answers
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