To get the determinant of a 2*2 matrix, you subtract the product of the leading diagonal from the secondary diagonal.
In the matrix above, the product of the secondary diagonal is (4×5) = 20.
The product of the leading diagonal is (-2×3) = -6.
∴ determinant(Δ) = (-6) - 20 = -26
Answer:
36 miles
Explanation:
Let's go ahead sketch the given problem as shown below;
From the above diagram, we can go ahead and determine x, which is the distance the eastbound plane has traveled, using the Pythagorean theorem;
![\begin{gathered} 39^2=x^2+15^2 \\ 1521=x^2+225 \\ x^2=1521-225 \\ x=\sqrt[]{1296} \\ x=36\text{miles} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%2039%5E2%3Dx%5E2%2B15%5E2%20%5C%5C%201521%3Dx%5E2%2B225%20%5C%5C%20x%5E2%3D1521-225%20%5C%5C%20x%3D%5Csqrt%5B%5D%7B1296%7D%20%5C%5C%20x%3D36%5Ctext%7Bmiles%7D%20%5Cend%7Bgathered%7D)
Answer:
11.25minutes
Step-by-step explanation:
From the question we are told that lifts unloads 576 skiers per hour at the top of the slope, this is expressed as;
576skiers = 1hr
To determine the time it will take 108skier, we can write
108skier = x
Divide both expressions
576/108 = 1/x
576x =108
x = 108/576
x = 0.1875hr
Convert to minute
x = 0.1875×60
x = 11.25minutes
Hence it took the ride 11.25minutes
Y=1x+3 i believe this is the answer
