Answer:
The answer is 51 bro c:
Step-by-step explanation:
Note that
sin(x + y) = sin(x) cos(y) + cos(x) sin(y).
Therefore by setting x = π/2 and y = π/7, obtain
sin(π/2 + π/7) = sin(π/2)*cos(π/7) + cos(π/2)*sin(π/7)
The right side is what we want to evaluate. It is equal to
sin(π/2 + π/7) = sin (9/14)π
Answer:
Answer: x = 5
Step-by-step explanation: This is an isosceles triangle, which means two sides are equal in length and two angles are equal in measurement.
Line BA = Line BC
Similarly, Angle A = Angle C
Angle A plus Angle C equals 146°
Also the sum of the interior angles of a triangle is 180°
Therefore, 146 + (6x + 4) = 180
Subtract 146 from both sides of the equation
6x + 4 = 34
Subtract 4 from both sides of the equation
6x = 30
Divide both sides of the equation by 6
x = 5
To find if the square root of a number is irrational or not, check to see if its prime factors all have even exponents. It also shows us there must be irrational numbers (such as the square root of two) ... in case we ever doubted it!
Give Brainlyist pls
4x^2+23x-72=
4x(x+8)-9(x+8)=
i got dis 4 yo answer and it is (x+8)(4x-9)
hope dis helped