Answer:
A. 57.2
Step-by-step explanation:
Given: Nelly runs = 10-mile race in 88 minutes. At the same rate but 6.5-mile race
To find: How long it would take him to run a 6.5-mile race
Solution: To calculate the how long;
<u>How to calculate running pace</u>
- Divide your run time by your distance
- If you ran 3 miles in 30 minutes: 30 min ÷ 3 mi = 10 minutes per mile pace
<u>How to calculate run distance</u>
- Divide your running time by your pace
- If your pace is 8 minutes per mile and you ran for 32 minutes: 32 min ÷ 8 min per mi = 4 miles
<u>How to calculate run time</u>
- Multiply your pace by your distance
- If your pace is 9.5 minutes per mile and you ran 3 miles: 9.5 min per mi × 3 mi = 28.5 minutes = 28 minutes, 30 seconds
<u>How to calculate running speed</u>
- Divide your run distance by your run time
- If you ran 2.5 miles and you ran for 20 minutes:
2.5 mi ÷ 20 min = 0.125 miles per minute
Answer:
![y=(x-2)^2-1](https://tex.z-dn.net/?f=y%3D%28x-2%29%5E2-1)
Step-by-step explanation:
<u>Complete the square</u>
<u />![y=x^2-4x+3\\\\y+1=x^2-4x+3+1\\\\y+1=x^2-4x+4\\\\y+1=(x-2)^2\\\\y=(x-2)^2-1](https://tex.z-dn.net/?f=y%3Dx%5E2-4x%2B3%5C%5C%5C%5Cy%2B1%3Dx%5E2-4x%2B3%2B1%5C%5C%5C%5Cy%2B1%3Dx%5E2-4x%2B4%5C%5C%5C%5Cy%2B1%3D%28x-2%29%5E2%5C%5C%5C%5Cy%3D%28x-2%29%5E2-1)
Answer:
1528.57
Step-by-step explanation:
Answer:
The height is 6 feet, and the length of the ramp is the hypotenuse of a right triangle with angle 28 degrees with the ground
Step-by-step explanation:sin
28=6/x
x*sin 28=6
x=6/sin 28=12.78 ft.
23 squared is 529 because 23 x 23 is 529, so the answer is D.