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pantera1 [17]
3 years ago
7

find the area of the shaded region a.112 square units b.76 square units c.96 square units d.192 square units

Mathematics
1 answer:
Yakvenalex [24]3 years ago
4 0
The answer should be 56
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A car is driving down a long Steep Hill the elevation above sea level in feet of the car when it is D miles from the top of the
amid [387]

Answer:

This task would be especially well-suited for instructional purposes. Students will benefit from a class discussion about the slope, y-intercept, x-intercept, and implications of the restricted domain for interpreting more precisely what the equation is modeling.

One potential confusion students may have follows from the subtle difference between what the car is doing and the idea of slope as the ratio between the change in vertical distance on the graph and the change in horizontal distance on the graph. Because the car is traveling one mile on a down-hill slope, the situation could be represented as a right triangle with a hypotenuse of 5,280 ft and a leg of 250 ft; using the Pythagorean Theorem they would find that the other leg is approximately 5,274 ft. Following through on this interpretation, a student might conclude that the car travels a horizontal distance of approximately 5,274 ft for every 250 ft in vertical distance and arrive at a slope of approximately -0.047. While this is, in some sense, the slope of the hill, it is not the slope of the function as described. This interpretation yields numbers that are very close to the situation described in the task, yet conceptually different since the distance traveled by the car would now be expressed in terms of horizontal distance traveled as opposed to distance along the slope of the hill to compute the elevation. If students do indeed pursue this line of reasoning, the task provides an opportunity to compare and contrast the graph of the function and what it represents with a drawing of the hill and the vertical and horizontal distances traversed with each mile down the slope.

Step-by-step explanation:

5 0
2 years ago
Find 60% of 264. i dont understand how to find what the answer is :(
LekaFEV [45]
60 percent of 264
=(60/100)*264
= (60*264)/100
= 15840/100=158.4
5 0
2 years ago
Read 2 more answers
Alaska has a land area of about 1700000 square miles Florida has a land area one tenth of the size of Alaska what is the land ar
AnnyKZ [126]

Answer:

The land area of Florida is 170,000\ mi^2

Step-by-step explanation:

Let

x -----> the land area of Alaska in square miles

y -----> the land area of Florida in square miles

we know that

The linear equation that represent this problem is equal to

y=\frac{1}{10}x ----> equation A

x=1,700,000 ----> equation B

substitute equation B in equation A and solve for y

y=\frac{1}{10}(1,700,000)=170,000\ mi^2

Remember that

Florida's land area is one-tenth the size of Alaska is the same as to say that Alaska's land area is ten times the size of Florida

8 0
3 years ago
When a number x is multiplied by 6, the result is 3/8 . What is the value of x?
JulsSmile [24]
1/16 * 6 = 6/16 or reduced to 3/8
7 0
3 years ago
14. Team 8A is selling snacks at the football game to raise money for a field trip. They are selling popcorn for $2.50 and pretz
Mamont248 [21]

Answer:

  • 40 popcorns and 90 pretzels sold.

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

Let the number of popcorns is x and pretzels is y.

Set up equations:

  • x + y = 130
  • 2.5x + 2y = 280

Solve by elimination, multiply the first equation by 2 and subtract from the second equation:

  • 2.5x + 2y - 2x - 2y = 280 - 2*130
  • 0.5x = 280 - 260
  • 0.5x = 20
  • x = 20/0.5
  • x = 40

Find y:

  • 40 + y = 130
  • y = 130 - 40
  • y = 90

5 0
1 year ago
Read 2 more answers
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