Answer:
Height of slide = 5 feet (Approx.)
Step-by-step explanation:
Given:
Length of slide = 12 feet
Angle of depression = 25°
Find:
Height of slide
Computation:
Length of slide = Hypotenuse
Height of slide = Perpendicular
Using trigonometry function;
Sin θ = Perpendicular / Hypotenuse
Sin 25 = Height of slide / 12
0.422 = Height of slide / 12
Height of slide = 12 x 0.422
Height of slide = 5.064
Height of slide = 5 feet (Approx.)
The answer is 20%. 18% rounded is 20%
Answer:
Hence the expression ![$$(5x-y)(x-4)=5x^2-xy-20x+4y$$](https://tex.z-dn.net/?f=%24%24%285x-y%29%28x-4%29%3D5x%5E2-xy-20x%2B4y%24%24)
Step-by-step explanation:
Explanation
- The given expression is (5 x-y)(x-4).
- We have to multiply the given expression.
- Multiply the (5 x-y) by -4, multiply the (5 x-y) by x then add like terms.
![$$\begin{matrix}{} & {} & {} & {} & 5x & - & y \\ \times & {} & {} & {} & x & - & 4 \\ \end{matrix}$$](https://tex.z-dn.net/?f=%24%24%5Cbegin%7Bmatrix%7D%7B%7D%20%26%20%7B%7D%20%26%20%7B%7D%20%26%20%7B%7D%20%26%205x%20%26%20-%20%26%20y%20%5C%5C%20%5Ctimes%20%26%20%7B%7D%20%26%20%7B%7D%20%26%20%7B%7D%20%26%20x%20%26%20-%20%26%204%20%5C%5C%20%5Cend%7Bmatrix%7D%24%24)
_________________
![$$\begin{matrix}{} & {} & {} & - & 20x & + & 4y \\ 5{{x}^2} & - & xy & {} & {} & {} & {} \\ \end{matrix}$$](https://tex.z-dn.net/?f=%24%24%5Cbegin%7Bmatrix%7D%7B%7D%20%26%20%7B%7D%20%26%20%7B%7D%20%26%20-%20%26%2020x%20%26%20%2B%20%26%204y%20%5C%5C%205%7B%7Bx%7D%5E2%7D%20%26%20-%20%26%20xy%20%26%20%7B%7D%20%26%20%7B%7D%20%26%20%7B%7D%20%26%20%7B%7D%20%5C%5C%20%5Cend%7Bmatrix%7D%24%24)
_________________
![$$\begin{matrix}5{{x}^2} & - & xy & - & 20x & + & 4y \\ \end{matrix}$$](https://tex.z-dn.net/?f=%24%24%5Cbegin%7Bmatrix%7D5%7B%7Bx%7D%5E2%7D%20%26%20-%20%26%20xy%20%26%20-%20%26%2020x%20%26%20%2B%20%26%204y%20%5C%5C%20%5Cend%7Bmatrix%7D%24%24)
26*$1334=34,684
19*$749=14,231
$34,684
+$14,241=48,915
Answer:
A C D
Step-by-step explanation: