13cm is the answer i hope this helps you!!!!!!!
Answer:
Step-by-step explanation:
b = 10
Substitute b in every equation below and compare the results
<u>A. 2(b + 4) = 16
</u>
- 2(10 + 4) = 2(14) = 28 ≠ 16, incorrect
<u>B. 2(b + 2) = 40
</u>
- 2(10 + 2) = 2(12) = 24 ≠ 40, incorrect
<u>C. 3(b - 2) = 24
</u>
- 3(10 - 2) = 3(8) = 24, correct
<u>D. 2(8 + b) = 42
</u>
- 2(8 + 10) = 2(18) = 36 ≠ 42, incorrect
<u>E. 3(b - 4) = 20</u>
- 3(10 - 4) = 3(6) = 18 ≠ 20, incorrect
Answer: (13,-7)
Step-by-step explanation:
By using the formula
is the coordinates of the midpoint.
For finding the midpoint X variable do:
For finding the midpoint Y variable do:
(you can either keep the parenthesis or take them out. Either way, the answer is the same.
Considering coordinate numbers follow the format: (x,y), you'll simply just substitute the numbers found above into their respective places.
x: 13
y: -7
(13,-7).
Answer:
7/8 > 3/4
Step-by-step explanation:
Find a common denominator first and here it is 8. To get 3/4 to 8ths, you multiply the numerator and denominator by 2 to get 6/8 and 7/8 is greater
Hello from MrBillDoesMath!
Answer: NO points of intersection. The two lines are parallel
Discussion:
Rewrite the equations so the variables and constants line up vertically
x - 2y + 8 = 0
x - 2y -6 = 0 (I added "x" to both sides of the second equation)
Subtract the bottom equation from the the top one:
(x - 2y + 8) - ( x - 2y -6) = 0 or
x - 2y + 8 - x + 2y + 6 = 0 or
(x-x) + (-2y +2y) + (8 + 6) = 0 or
0 + 0 + 14 = 0
14 = 0 !
No solution exists. (Another approach: What is the slope of each line? Hint: 1/2. Since the slopes are the same the lines are parallel and have no points of intersection)
Thank you,
MrB