Answer:
(C) α + β + γ
Step-by-step explanation:
The sum of interior angles of ΔOCB & ΔOCA = 180° x 2 = 360°
α + β + γ + (360°-x) = 360°
x = α + β + γ
Answer:
infinite number of solutions
Step-by-step explanation:
x+y=1
3y=-3x+3 ⇒ y=-x+1 ⇒ y+x=1
both equations are the same, so they have infinite number of solutions
So the question sets the problem with a bunch of different values given but it goes ahead does the work of putting them into an equation, since this equation they made gives us the position, when it is equal to zero the object has impacted the ground. Setting it to zero allows us to solve for t, the time at which it strikes the ground.
0 = -4.9t^2 + 19.6t + 58.8, because this is a quadratic, and a complicated one at that, we will use either a calculator, or the quadratic formula to solve for t.
No matter what way you solve it you will get two values, only the positive value applies because a negative value for time is illogical.
The answer is at t = 6 seconds

Step-by-step explanation:
First of all, we will find the solution of the given equation
So,
Given equation is:

Adding 6m on both sides

Dividing both sides by 9

In order to check, if the solution is the solution of given options, we will put the solution in the equation, if both sides of equations are equal then the solution belongs to the equation.
So,
For 
Putting m=4

For 
Putting m=4
![-2[-4(4)-6.4]=44.8\\-2(-16-6.4) = 44.8\\-2(-22.4) = 44.8\\44.8 = 44.8](https://tex.z-dn.net/?f=-2%5B-4%284%29-6.4%5D%3D44.8%5C%5C-2%28-16-6.4%29%20%3D%2044.8%5C%5C-2%28-22.4%29%20%3D%2044.8%5C%5C44.8%20%3D%2044.8)
For 
Putting m=4

for 
Putting m = 4

Keywords: Equations, linear equation
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3+ x/2 = 10 Given
x/2 = 7 Subtraction property of equality
x = 14 Multiplication property of equality