The system of equations to model the problem is y = 0.5(x - 16) for the water taxi's path and y = -5x + 36 for the water skier's path. No collision is possible between the water skier and the taxi.
a. System of Equations:
To model the problem, we need to find the equation of the water skier's path.
Using the two given points, we can find the slope of the water skier's path:
Now that we have the slope, we can use the point-slope formula to find the equation of the water skier's path:
y - y1 = m(x - x1)
Substituting the values x1 = 6, y1 = 6, and m = -5:
y - 6 = -5(x - 6)
Simplifying:
y = -5x + 36
Therefore, the system of equations to model the problem is:
y = 0.5(x - 16) - Equation of the water taxi's path
y = -5x + 36 - Equation of the water skier's path
b. Possibility of Collision:
To determine if the water skier could collide with the taxi, we need to solve the system of equations. If the x-coordinate at the point of intersection is within a certain range, then a collision is possible.
Substitute the second equation into the first equation:
0.5(x - 16) = -5x + 36
Solve for x:
0.5x - 8 = -5x + 36
5.5x = 44
x = 8
The x-coordinate of the point of intersection is 8. Since the water skier's path does not pass through the point x = 8, there is no collision between the water skier and the taxi.
#SPJ2
I realize that the equation is different, but do it in the same way, it'll help! It is given that the water taxi's path can be modeled by the equation y =0.5(x - 14)^2. Therefore, this is one of the equations in this system. Find a linear equation that will model the path of the water skier, which begins at the point (6,6) and ends at the point (8,-4). The slope is (-5). Use the slope and one point on the line to find the y-intercept of the line. The y-intercept of the line that passes through the points (6,6) and (8,-4) is (0,36). Thus, the equation is y=-5x+36. Now, to determine if it is possible for the water skier to collide with the taxi, we have to determine if there is a solution to the system of equations. To determine if there is a solution to the system of equations, solve the system using substitution. First, write the equation that models the water taxi's path in standard form. y=0.5(x - 14)^2-->0.5x^2-14x+98. Use substitution. Substitute for y in the equation and then solve for x. As the expression on the left side of the equation cannot easily be factored, use the Quadratic Formula to solve for x. Do x=-b(plusorminus)sqrrtb^2-4ac/2a. Identify a, b, and c. a=0.5, b=-9, and c=62. Substitute into the Quadratic Formula. If there is a negative number under the radical, there are NO solutions. Thus, the path of the water skier will never cross the path of the taxi.
In conclusion: It is not possible that the water skier could collide with the taxi as the two paths never cross.
Answer:
If the sales 2 years ago were x, the sales last year were 1.12x and this year's sales were 1.12 * (1.12x). We can write 1.12 * (1.12x) = 81427 so that means x = $64913.
Dunkin' Donuts' sales 2 years ago were approximately $64,913.
In order to find Dunkin' Donuts' sales 2 years ago, we can use the information provided that their sales have increased by 12% per year for the last 2 years. Let's denote their sales 2 years ago as x. Then, their sales 1 year ago would be x increased by 12%: (x + 0.12x) = 1.12x. And their sales this year would be 1.12x increased by 12%: (1.12x + 0.12(1.12x)) = 81,427.
Simplifying the equation:
Therefore, Dunkin' Donuts' sales 2 years ago were approximately $64,911.
Answer:
15.73
Step-by-step explanation:
Straight angle is 180 degrees. So the given angles add up to 180.
(6x - 3) + (5x + 10) = 180
11x + 7 = 180
-7 -7
11x = 173
The future value of an account in one year with a $450 deposit and a 2.1% annual interest rate is $459.45.
The question asks about the future value of an account with a certain initial deposit and an annual interest rate. The future value can be calculated using the formula for simple interest: FV = P * (1 + r * t) where FV stands for Future Value, P stands for the initial Principle amount, r is the annual interest rate and t stands for time.
Applying this formula for your question, the initial deposit P is $450, the interest rate r is 2.1% or 0.021 (in decimal form), and the time t is 1 year.
So, FV = $450 * (1 + 0.021*1) = $450 * (1.021) = $459.45.
Therefore, the future value in one year for an account that was originally deposited with $450 and has a 2.1% annual interest rate is $459.45.
#SPJ11
circumference of the
circle? (I need a step-by-step answer for further understanding please!!)
Answer:
Since area =7.7
Then the circumference is