Answer: i think its 21! how idfk but it was on some website...dont hatecrime me!
Step-by-step explanation:
X^2 + 6x = 13. We are to "complete the square."
x^2 + 6x + (6/2)^2 - (6/2)^2 = 13
Then (x+3)^2 - 9 = 13, or (x+3)^2 = 22.
then x+3 = plus or minus sqrt(22), or x = -3 plus or minus sqrt(22).
Given x^2 + 6x = 13, to complete the square we insert " 3^2 - 3^2 " between the "6x" and the "=" sign.
Answer:
4.44 cm²
Step-by-step explanation:
If the diagram attached below is required to complete the question,
Applying,
Area of the shaded segment(A) = Area of the sector- area of the triangle
A = (πr²∅/360)-(r²sin∅/)2................ Equation 1
Where r = radius of the circle, ∅ = angle at the center of the circle,π = pie
From the question,
Given: r = 5.4 cm, ∅ = 72°
Constant: π = 3.14
Substitute these values into equation 1
A = (3.14×5.4²×72/360)-(5.4²/2×sin72)
A = 18.31-13.87
A = 4.44 cm²
Answer:
Negative numbers: Loss, below, taken away
Positive numbers: Gain, Adding, Above
Answer: 4.5 Seconds
Step-by-step explanation: