Since you haven't provided the radius, I'll just use the symbol 'r' to refer to radius. You can substitute with the given radius in the equation.
Now, circumference of the circle is calculated using the following rule:
curcimference of circle = 2*pi*r
where:
r is the radius
pi is given as 3.14
Therefore:
circumference of circle = 2*3.14*r = 6.28 r units
Answer:
The answer is the fourth option.
Step-by-step explanation:
Answer:
the second bag
Step-by-step explanation:
to find it u have to think of it as fractions. 3/20 has to equal ?/500 so divide 500 by 20 and you get 25. then multiply the 3 by 25 which equals 75. so it would be 75/500 which is less than 170/500
4 7/8 + 2 3/8 =
= 39/8 + 19/8
= (39 + 19)/8
= 58/8
= 7 2/8
= 7 1/4 miles
Answer:
A
Step-by-step explanation:
This explanation mostly depends on what you're learning right now. The first way would be to convert this matrix to a system of equations like this.
g + t + k = 90
g + 2t - k = 55
-g - t + 3k = 30
Then you solve using normal methods of substitution or elimination. It seems to me that elimination is the quickest method.
g + t + k = 90
-g - t + 3k = 30
____________
0 + 0 + 4k = 120
4k = 120
k = 30
No you can plug this into the first two equations
g + t + (30) = 90
g + t = 60
and
g + 2t - (30) = 55
g + 2t = 85
now use elimination again by multiplying the first equation by -1
g + 2t = 85
-g - t = -60
_________
0 + t = 25
t = 25
Now plug those both back into one of the equations. I'll just do the first one.
g + (25) + (30) = 90
g = 35
Therefore, we know that Ted spent the least amount of time on the computer.
The second method is using matrix reduction and getting the matrix in the row echelon form, therefore solving using the gauss jordan method. If you would like me to go through this instead, please leave a comment.
