X + 4 = 19 -2x
3x = 15
x=5
5 is the number
Answer:
3/20
Step-by-step explanation:
its 3/20 because its really the only possible answer that has 20 has its denominator
Answer:
85
Step-by-step explanation:
From the question given above, the following data were obtained:
Ratios of the angle => 2 : 4 : 5 : 6
Difference between the largest angle and the smallest angle =?
Next, we shall determine the various angles in the quadrilateral. This can be obtained as follow:
Ratios of the angle => 2 : 4 : 5 : 6
Total ratio = 2 + 4 + 5 + 6
Total ratio = 17
Angle in a quadrilateral = 360
For ratio 2:
Angle = 2/17 × 360 ≈ 42
For ratio 4:
Angle = 4/17 × 360 ≈ 85
For ratio 5:
Angle = 5/17 × 360 ≈ 106
For ratio 6:
Angle = 6/17 × 360 ≈ 127
SUMMARY:
The angles are => 42°, 85°, 106° and 127°
Finally, we shall determine the difference between largest angle and the smallest angle. This can be obtained as follow:
Smallest angle = 42°
Largest angle = 127°
Difference between the largest angle and the smallest angle =?
Difference = Largest – Smallest
Difference = 127 – 42
Difference = 85
Thus, the difference between the largest angle and the smallest angle is 85.
0.32% is the answer and i need 20 characters to type this answer so dont mind this.
To find the quadratic of the form ax^2+bx+c=y set up a system of equations with the points provided...
a+b+c=4, 0a+0b+c=3, a-b+c=-6 getting differences:
a+b=1, -a+b=9 and getting difference again:
2a=-8, so a=-4, making a+b=1 become:
-4+b=1, so b=5, making a+b+c=4 become:
-4+5+c=4, so c=3
thus the quadratic that produces those three points is:
y=-4x^2+5x+3
...
The vertex occurs when the velocity is equal to zero, the derivative of the quadratic...
dy/dx=-8x+5, dy/dx=0 when x=5/8=0.625
Then you can find y(5/8)=4.5625
So the vertex is (0.625, 4.5625)
Or you may wish to remember that the vertex will always be:
(-b/(2a), (4ac-b^2)/(4a)) (this can be derived from conservation of energy under constant acceleration or the vertex form of the quadratic)
The axis of symmetry will be the vertical line about the x-coordinate of the vertex, in this case:
x=0.625
