B. 7
C. 11
D. 6
and,
If ABCD is a parallelogram, what is the length of BD?
A. 10
B. 12
C. 7
D. 5
Answer:
x = 11
BD = 10
Step-by-step explanation:
Solving for x
The opposite sides if a parallelogram are equal and parallel.
Hence,
2x - 5 = 17
Collecting like terms:
2x = 17 + 5
2x = 22
x = 11
If E is a midpoint, then BE equals to DE
Since BE = 5, then
BD = 2 * BE
BD = 10
2. 8c^2 - c + 3 + 2c^2-c + 2
Hey!
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Question #1:
= 6n^2 - 2n - 3 + 5n^2 - 9n - 6
= 6n^2 + (-2n) + (-3) + 5n^2 + (-9n) + (-6)
= (6n^2 + 5n^2) + (-2n + -9n) + (-3 + -6)
= (11n^2) + (-11n) + (-9)
Answer: 11n² + (-11n) + (-9)
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Question #2:
= 8c^2 - c + 3 + 2c^2 - c + 2
= 8c^2 + (-c) + 3 + 2c^2 + (-c) + 2
= (8c^2 + 2c^2) + (-c + -c) + (3 + 2)
= (10c^2) + (-2c) + (5)
Answer: 10c² + (-2c) + 5
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Hope This Helped! Good Luck!
Answer:
1. 11n^2-11n-9
2. 10c^2-2c+5
Step-by-step explanation:
1. 6n^2+5n^2 = 11n^2
-2n-9n = -11n
-3-6=-9
2. 8c^2+2c^2 = 10c^2
-c-c= -2c
3+2=5
Simplify
13c+ - 7c
Combine like terms
13c+-7c
( 13c+-7c)
c= 6
I hope that's help ! If you have question(s) just let me know