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Virty [35]
3 years ago
14

. Choose the description of the graph of the equation x = -8.

Mathematics
2 answers:
vampirchik [111]3 years ago
8 0
A vertical line passing through point (-8,0). The line lies within both quadrant two and three, with a domain:(xeR| x= -8) and a range:(yeR)
pickupchik [31]3 years ago
3 0
The description should be a vertical line on the negative side on the grid and the vertical line should be placed on the negative 8 on the x axis.

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Classify each representation shown below as either linear or exponential.
hichkok12 [17]

1. Exponential

2. Linear

3. Exponential

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3 years ago
Which of these equations have no solution? Check all that apply.
german

Answer:

2(x + 2) + 2 = 2(x + 3) + 1

Step-by-step explanation:

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The lines shown below are parallel. If the green line has a slope of -1/2, what is the slope of the red line?
lbvjy [14]
<h3>Answer:  B) -1/2</h3>

Explanation: Parallel lines have the same slopes, but different y intercepts.

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3 years ago
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Find the similarity ratio and the ratio of perimeters for two regular octagons with areas of 18in2 and 50in2
sweet-ann [11.9K]

Answer:

3. 3 : 5; 3: 5

Step-by-step explanation:

First, let's find the leght of the sides of each octagon.

A= 18in^{2}

The area of an octagon is defined by

A=2(1+\sqrt{2})l^{2}

Replacing the area

18=2(1+\sqrt{2})l^{2}\\\frac{18}{2(1+\sqrt{2})} =l^{2}\\l=\sqrt{\frac{18}{3.4} } \approx 2.3 \ in

Therefore, the side of the first octagon is 1.6 inches long.

Its perimeter is: P=8(2.3in)=18.4in

A=50 in^{2}

50=2(1+\sqrt{2})l^{2}\\\frac{50}{2(1+\sqrt{2})} =l^{2}\\l=\sqrt{\frac{50}{3.4} } \approx 3.8 \ in

Therefore, the side of the second octagon is 3.8 inches long.

Its perimeter is P=8(3.8in)=30.4in.

Now, let's divide to find each ratio:

\frac{3.8}{2.3} \approx 1.65 (the ratio between sides).

\frac{30.4}{18.4} \approx 1.65 (the ratio between perimeters).

Therefore, the closest ratio is 3. 3 : 5; 3: 5

8 0
3 years ago
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Three friends ate dinner at a restaurant. The friends decided to add a 15% tip and then split the bill evenly. Each friend paid
Hunter-Best [27]
Well the all paid 10.35×3=31.05 with the tip. The tip is 35.05/100×15=4.6575. To know how much they paid without the tip you just 31.05-4.6575=26.39
6 0
3 years ago
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