Answer:
x = 
and y = 
Step-by-step explanation:
Known that he sum of angles on a straight line is 
. From the diagram;
2y + x + y =
x + 3y = ................ 1
Also,
2x + x + 2y =
3x + 2y = .............. 2
Using the elimination method, multiply equation 1 by 3 and equation 2 by 1
3x + 9y = 540 ............ 3
3x + 2y = ............. 4
7y = 360
y = 
y =
substitute the value of y in equation 1,
x + 3y =
x + 3(51.4) =
x + 154.2 =
x = - 154.2
x =
Thus, x = and y =
This is an arithmetic sequence because each term is 1/8 more than the previous term. This is called the common difference and it is what defines an arithmetic sequence.
a(n)=a+d(n-1), where a is 1st term, d is common difference, and n it term #
In this case:
a(n)=3.25+0.125(n-1) or more neatly...
a(n)=3.125+0.125n
a(5)=3.75
Answer:
c. i think
Step-by-step explanation:
Answer: 4.
Step-by-step explanation: In this case it is easier to imagine it on the number line: the y coordinates are the same, so the distance is only in x direction. On the positive side it is 2 2/3 to zero and on the negative, 1 1/3 to zero. Total is 1 1/3 + 2 2/3 = 4. Or the proper writing: 2 2/3 - (-1 1/3) = 4
Answer:
27
Step-by-step explanation:
Just add all numbers together.
