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Irina-Kira [14]
3 years ago
7

The formula for finding the horsepower of a vehicle is: Horsepower = weight × ( velocity 234 ) 3 Weight is the total weight of t

he vehicle, driver and any passengers. Velocity is determined by the speed at the end of a quarter mile run. The newest hybrid auto weighs 2200 pounds and the driver is 180 pounds. At the end of the quarter mile run, the speed is 98 miles per hour.
What is the horsepower of the car rounded to the nearest whole number?

161 hp
175 hp
209 hp
417 hp
Mathematics
1 answer:
Luden [163]3 years ago
8 0
The answer is option 2
 Power = 175 hp
 The correct formula to calculate the power is:
 Power = weight * (speed / 234) ³
 Where the weight is that of the vehicle plus the driver's
 Therefore the calculation is as follows:
 Power = (2200 + 180) * (98/234) ³
 Power = 174.8266 hp
 Rounding ...
 Power = 175 hp
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spin [16.1K]

Answer:

the answer is b

Step-by-step explanation:

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3 years ago
PLEASE PLEASE PLEASEE PLEASEEEEESE HELPME!?!?!? IM SO BAD AT MATH PLEASE HELP!!!
Fiesta28 [93]
For this case we have the following function:
 f (x) = 0.01 * (2) ^ x

 By definition, the average rate of change is given by:
 AVR =  \frac{f(x2) - f(x1)}{x2 - x1}
 We evaluate the function for the given values:
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 f (7) = 0.01 * (2) ^ 7

f (7) = 1.28
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the average rate of change from x = 7 to x = 14 is:
 
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3 years ago
Use technology to determine an appropriate model of the data. (-1,0), (1,-4), (2,-3), (4,5), (5,12)
Vinil7 [7]
By graphing the points, The best mode of the data will be the quadratic function

There is 5 steps to find the quadratic function that models the data.

First step           ⇒ Plot the data pairs (x, y) in a coordinate plane.
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Second step     ⇒ Draw the parabola you think best fits the data.
                             Which is the red function in the attached figure.

Third step         ⇒ Estimate the coordinates of three points on the
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Fourth step       ⇒ Substitute the coordinates of the points into the model
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So, the quadratic model for the data is ⇒ y = x² - 2x - 3


7 0
3 years ago
A chemist has two alloys, one of which is 15% gold and 20% lead and the other which is 30% gold and 50% lead. How many grams of
vlabodo [156]

Answer: 490 grams of the first alloy should be used.

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Step-by-step explanation:

Let x represent the weight of the first alloy in grams that should be used.

Let y represent the weight of the second alloy in grams that should be used.

A chemist has two alloys, one of which is 15% gold and 20% lead. This means that the amount of gold and lead in the first alloy is

0.15x and 0.2x

The second alloy contains 30% gold and 50% lead. This means that the amount of gold and lead in the second alloy is

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0.03x + 0.075y = 16.95

Subtracting, it becomes

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Substituting y = 30 into equation 1, it becomes

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Answer:

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