Answer:
3
Step-by-step explanation:
3 x 4 = 12
<h2>
Answer:</h2>
B. |y| = 1.6
<h2>
Step-by-step explanation:</h2>
A sketch of the vector is attached to this response.
As shown, the vector lies on the second quadrant and its horizontal and vertical components are given by x and y respectively.
Where;
|x| = v cos θ -----------------(i)
|y| = v sin θ -----------------(ii)
and
v = magnitude of the vector = 2.5km/hr
θ = angle that the vector makes with the +x axis = 90° + 50° = 140°
<em>To get the magnitude of the vector's vertical component</em>
<em>Substitute these values into equation(ii) as follows;</em>
|y| = 2.5 sin 140°
|y| = 2.5 x 0.6428
|y| = 1.607
|y| ≅ 1.6 km/hr
Therefore, the vertical component of the vector has a magnitude of 1.6 km/hr.
The equivalent expression of the<u> different of two square</u> is -1
Given the following expressions
a cot α = 1
a = 1/cot α = sinα/cosα
b = 1/cos α
We are to find the expression a² - b²
According to <u>difference of two squares;</u>
a² - b² = (a + b) (a - b)
Substitute the given expressions into the formula as shown:

This shows that the equivalent expression of the<u> difference of two squares</u> is -1
Learn more here: brainly.com/question/11084694
Answer:
You can't "solve" it but you can simplify it. When I factored it, I got -3(x+112).