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DedPeter [7]
3 years ago
14

Find the perimeter of a rectangle with a length of 6x+3 and a width of -2x-5.

Mathematics
2 answers:
blsea [12.9K]3 years ago
8 0
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!
Ghella [55]3 years ago
5 0

L=6x+3

B=-2x-5

\\ \rm\longmapsto Perimeter=2(L+B)

\\ \rm\longmapsto Perimeter=2(6x+3-2x-5)

\begin{gathered}\\ \rm\longmapsto Perimeter=2(4x-2)\end{gathered}\begin{gathered}\\ \rm\longmapsto Perimeter= 8x-4\end{gathered}

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<h3>Answer:</h3>

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6 0
2 years ago
Find the product of 11/2 with the quotient of 3/7 and 3/10
trasher [3.6K]


(11/2) x ((3/7) / (3/10)

(11/2) x (3/7) x (10/3)

330/42

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4 0
3 years ago
AYO HELP ME PLEASE
myrzilka [38]

Answer:

Start at 80(y) go to 10:00(x)

Step-by-step explanation:

Joey's house is the same distance to his friend's house as his friend's house is to his. This means that if the travel at the same rate the rate of change (slope) will be the same. However because the friend is going the opposite direction of joey the rate of change (slope) will have the opposite sign (negative vs positive, down vs up)

6 0
2 years ago
A coin is tossed 4 times. Which of the following represents the probability of the coin landing on heads all 4 times?
galben [10]

Answer:

C.1/16

Step-by-step explanation:

When a coin is tossed 4 times, the number of outcomes are:

2^4 = 16

So,

From the outcomes, only one outcome will be when there will be all heads

So, the probability will be:

One out of the 16 outcomes

Hence, the probability of a coin landing on heads all 4 times is:

C.1/16

5 0
3 years ago
Which of the following values are in the range of the function graphed below?
slava [35]
The range is the output or the y values in the case of this function. The only y value on this function is 1 therefore the range is 1
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3 years ago
Read 2 more answers
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