It takes two steps to solve an equation or inequality that has more than one operation:
1- Simplify using the inverse of addition or subtraction.
2- Simplify further by using the inverse of multiplication or division.
An expressions obtained from the square of binomial expression is a perfect square trinomial . For example: x square+2x+1
Answer:
Step-by-step explanation:
A do-decagon is a polygon with 12 straight sides and 12 equal angles.
-The general formula for finding area of a do-decagon is given as:
where s is the sides length.
-Given the sides dimension is 9cm, the area is calculated as;
Hence, the do-decagon's area is
Answer:
x = -14
Step-by-step explanation:
x/4 = -3.5
Multiply both sides by 4:
x/4*4 = -3.5 * 4
x = -14
Answer:
Step-by-step explanation:
We are given that:
And we want to find the value of cos(A) and sin(A).
Recall that tangent is the ratio of the opposite side to the adjacent side.
Therefore, the opposite side measures 2<em>ab</em>, and the adjacent side measures <em>a</em>² - <em>b</em>².
Using the Pythagorean Theorem, solve for the hypotenuse:
Thus, our hypotenuse is given by <em>a</em>² + <em>b</em>².
Cosine is the ratio between the adjacent side and the hypotenuse. Thus:
And sine is the ratio between the opposite side and the hypotenuse. Thus:
In conclusion: