Answer:
True
Step-by-step explanation:
That expression is called the "Quadratic formula" and basically the solution to any second degree equation can be find by using the quadratic formula.
Attached you can find the procedure to get to the quadratic formula from the general equation of a second degree polynomial.
Step-by-step explanation:
x+6+90+3x-4=180 - - > x=22
So, the angle is 22+6=28°
Answer:
8/13
Step-by-step explanation:
Let the number be x
if five times a number added to 4 is divided by the number plus 6 the result is nine halves
- five times the number = 5x
- five times a number added to 4 = 5x+4
- five times a number added to 4 is divided by the number = (5x+4)/x
- five times a number added to 4 is divided by the number plus 6 = (5x+4)/x + 6
- nive halves = 9*(1/2)
five times a number added to 4 is divided by the number plus 6 the result is nine halves
(5x+4)/x + 6 = 9(1/2)
=>(5x+4)/x + 6 -6 = 9(1/2) -6 = 9/2-6 = (9-6*2)/2 = -3/2
=>(5x+4)= -3/2 *x= -3x/2
=>2(5x+4) = -3x
=> 10x +8 = -3x
=> 10x+3x = 8
=> 13x = 8
=> x = 8/13
Thus, the number is 8/13
Answer:
Yes
Step-by-step explanation:
200% is basically 2/1, and 2/1 = 2. 2 is a whole number.
Answer:
x≥ -43
Step-by-step explanation:
at least means greater than or equal to
Let x be the unknown number
x≥ -43
