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Leto [7]
3 years ago
5

A rectangle has a length of 4x plus 5 and a width of 8x minus 4. Which expression shows the perimeter of that rectangle? A: 4x +

1 B: 12x - 2 C: 12x + 1 D: 24x + 2
Mathematics
1 answer:
mezya [45]3 years ago
6 0

Answer: The answer is (D) 24x+2.


Step-by-step explanation:  Given that there is a rectangle, where length of the rectangle is given by

\ell=4x+5,

and width of the rectangle is given by

b=8x-4.

We are to find the perimeter of the rectangle. To do so, we need to add two times length with two times breadth of the rectangle.

Therefore, perimeter is given by

p=2\ell+2b=2\times(4x+5)+2\times(8x-1)=8x+10+16x-8=24x+2.

Thus, the correct option is (D).


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An exponential growth function has an asymptote of y = –3. Which might have occurred in the original function to permit the rang
Blababa [14]

The right choice is: A <em>whole</em> number constant could have been <em>subtracted</em> from the <em>exponential</em> expression.

Let be an <em>exponential</em> function of the form y = A\cdot e^{B\cdot x}, where A and B are <em>real</em> numbers. A <em>horizontal</em> asymptote exists when e^{B\cdot x} \to 0, which occurs for B\cdot x \to - \infty.

For this function, the <em>horizontal</em> asymptote is represented by y = 0 and to change the value of the asymptote we must add the <em>parent</em> function by another <em>real</em> number (C), that is to say:

y = A\cdot e^{B\cdot x} + C (1)

In this case, we must use C = -3 to obtain an horizontal asymptote of -3. Thus, the right choice is: A <em>whole</em> number constant could have been <em>subtracted</em> from the <em>exponential</em> expression.

To learn more on asymptotes, we kindly invite to check this verified question: brainly.com/question/8493280

3 0
2 years ago
Read 2 more answers
Determine if the two triangles are congruent. If they are, state how you know
Alborosie
<h3>Answers:</h3>
  1. Congruent by SSS
  2. Congruent by SAS
  3. Not congruent (or not enough info to know either way)
  4. Congruent by SAS
  5. Congruent by SSS
  6. Not congruent (or not enough info to know either way)
  7. Congruent by SAS
  8. Congruent by SAS

==================================

Explanations:

  1. We have 3 pairs of congruent sides. The tickmarks tell us how the congruent sides pair up (eg: the double tickmarked sides are the same length). So that lets us use SSS. The shared overlapping side forms the third pair of congruent sides.
  2. We have two pairs of congruent sides (the tickmarked sides and the overlapping sides), and an angle between the sides mentioned. Therefore, we can use SAS to prove the triangles congruent.
  3. We don't have enough info here. So the triangles might be congruent, or they might not be. The convention is to go with "not congruent" until we have enough evidence to prove otherwise.
  4. We can use SAS like with problem 2. Vertical angles are always congruent.
  5. This is similar to problem 1, so we can use SSS here.
  6. There isn't enough info, so it's pretty much a repeat of problem 3
  7. Same idea as problem 4.
  8. Similar to problem 2. We have two pairs of congruent sides and an included angle between them allowing us to use SAS

The abbreviations used were:

  • SSS = side side side
  • SAS = side angle side

The order is important with SAS because the angle needs to be between the sides mentioned.

5 0
2 years ago
This bar graph shows the number of hurricane in the Atlantic Basin from 2006-2011. Find the amount of change and the percent of
Arada [10]

Answer:

Step-by-step explanation:

Number of hurricanes in year 2008 = 8

Number of hurricanes in year 2009 = 3

Decrease in number of hurricanes = 8 - 3 = 5

Percent of decrease in number of hurricanes = \frac{5}{8}\times 100 = 62.5%

Number of hurricanes in year 2010 = 12

Number of hurricanes in year 2011 = 7

Decrease in number of hurricanes = 12 - 7 = 5

Percentage decrease in number of hurricanes = \frac{5}{12}\times 100 = 41.7%

Decrease in numbers of hurricanes in year 2010 - 11 was same as in year 2010 - 11.

Percentage decrease in hurricanes were more in year 2008 - 09 than percentage decrease in year 2010 - 11.

6 0
2 years ago
4 Cx+4)=32<br> 4X+16=32<br> Helppp find x
Leona [35]

Answer:

x=4

Step-by-step explanation:

4 0
2 years ago
A 20 foot rope is cut so that one piece is 5 feet longer than the other. Find the length of each piece
hammer [34]

Let one piece of the rope be x

Let the other piece of rope be x + 5

These two pieces put together will make 20 feet.

So we say:

x + (x +5) = 20

What is x? We expand the equation.

x + x + 5 = 20

x + x = 20 - 5

2x = 15

x = 7.5

The shorter piece is  therefore 7.5 feet.

The longer piece is 7.5 + 5 = 12.5 feet.



5 0
3 years ago
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