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Lady_Fox [76]
3 years ago
8

What is the sum of 7x/(x^2-4) and 2/(x+2)​

Mathematics
2 answers:
pishuonlain [190]3 years ago
8 0

Answer:  9x - 4 / x^2 - 4

Step-by-step explanation:

ioda3 years ago
7 0

Answer:

The answer is 9x-4/(x+2)(x-2)

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a trail is 5 miles long. carlos walks 2/3 of the trail and runs the rest. how many miles does carlos walk?
lana [24]

Answer:

as 1 mile = 1.609 km

so 5miles = 8.045 km

so 2/3 of the trail = 2/3 × 8.045 = 5.3633333 (ans)

Hope it helps

8 0
3 years ago
The circumference (C) of a circle is 16 cm. Which formula can you use to find the diameter (d) if you know that C = πd?
elixir [45]
Okay i'm confused on the question but i do know the answer of the diameter
 if that help the diameter would be d=5.09cm
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4 years ago
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Keith_Richards [23]

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The surface area of the figure is 124

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5 0
3 years ago
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50 POINTS
mamaluj [8]

Answer:

The answer is below

Step-by-step explanation:

The linear model represents the height, f(x), of a water balloon thrown off the roof of a building over time, x, measured in seconds: A linear model with ordered pairs at 0, 60 and 2, 75 and 4, 75 and 6, 40 and 8, 20 and 10, 0 and 12, 0 and 14, 0. The x axis is labeled Time in seconds, and the y axis is labeled Height in feet. Part A: During what interval(s) of the domain is the water balloon's height increasing? (2 points) Part B: During what interval(s) of the domain is the water balloon's height staying the same? (2 points) Part C: During what interval(s) of the domain is the water balloon's height decreasing the fastest? Use complete sentences to support your answer. (3 points) Part D: Use the constraints of the real-world situation to predict the height of the water balloon at 16 seconds.

Answer:

Part A:

Between 0 and 2 seconds, the height of the balloon increases from 60 feet to 75 feet  at a rate of 7.5 ft/s

Part B:

Between 2 and 4 seconds, the height stays constant at 75 feet.

Part C:

Between 4 and 6 seconds, the height of the balloon decreases from 75 feet to 40 feet at a rate of -17.5 ft/s

Between 6 and 8 seconds, the height of the balloon decreases from 40 feet to 20 feet at a rate of -10 ft/s

Between 8 and 10 seconds, the height of the balloon decreases from 20 feet to 0 feet at a rate of -10 ft/s

Hence it fastest decreasing rate is -17.5 ft/s which is between 4 to 6 seconds.

Part D:

From 10 seconds, the balloon is at the ground (0 feet), it continues to remain at 0 feet even at 16 seconds.

3 0
4 years ago
I have a 84% in class, there is a 25 point quiz worth 100 points, how what grade do I need to get to at least have an average gr
Thepotemich [5.8K]

At least about 20 points it can depend on the class but not really.

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4 years ago
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