The simple way of calculating a perimeter is to add all of the sides.
For a rectangle this would equal 2 x length + 2 x width
P = 2(6x + 3) + 2(-2x - 5)
= 12x + 6 - 4x - 10
= 8x - 4
At a higher level both the length and width must be greater than zero (= zero is a trivial rectangle)
6x + 3 > 0
6x > -3
x > -0.5
-2x - 5 > 0
2x + 5 < 0 (multiplying by -1 reverses the inequality)
2x < -5
x < -2.5
This rectangle cannot exist as x cannot be < -2.5 and > -0.5 at the same time!
Answer:
12
Step-by-step explanation:
Answer:
9802.9
Step-by-step explanation:
find 17.4% of 8350 and then add that to the original price
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I hope my answer has come to your help. God bless you and have a nice day ahead!
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Answer:
a) 6r + 3
b) 8 + 4d
c) -2mn
d) 6s - 10
Step-by-step explanation:
a) 2r + 3 + 4r
We need to add the like terms
= 2r + 4r + 3
= 6r + 3
b) 8 + 3d + d
We need to add the like terms
= 8 + 3d + d
= 8+4d
c) mn + (–3mn)
We need to add the like terms
= mn - 3mn
= -2mn
d) 10s + (–10) + (–4s)
We need to add the like terms
= 10s –10 –4s
= 10s - 4s - 10
= 6s - 10
