The correct answer for this question is "<span>(3x - 1)(x + 1).</span><span>"</span>
This is how to factor the given polynomial:
<span>3x2 + 2x - 1
</span><span>(3x - 1) (x + 1)
It takes trial and error in order to get the final factor of a given polynomial. It has to be exact and correctly done.</span>
Step-by-step explanation:
all the details are in the attachment; the solution are is filled with purple color.
Answer:
55 degrees
Step-by-step explanation:
Given that a circle and inside two chords with same arc length.
We are to find the angle between the two chords.
Given that two arcs subtend angle 125 degrees at the centre.
Let us join the two ends of chords to make the figure as a triangle inside a circle.
The triangle is isosceles as two arcs and hence chords are equal.
By central angle theorem we have the two equal angles as 1/2 (125) = 62.5
Hence we have a triangle with two equal angles 62.5 and another angle 1.
By triangle sum of angles theorem
angle 1+62.5+62.5 = 180
Hence angle A = 180-62.5-62.5 = 55 degrees.
T = 4 + 2A
S = 5A - 8
T = S
Since T and S are equal, set them against each other
2A + 4 = 5A - 8
Subtract 2A from each side, and add 8 to each side
12 = 3A
Divide each side by 3
A = 4
So Andrew is 4 years old
If Andrew is 4, then Tom is twice that plus 4, or 12. Sarah is 5 times 4 less 8, or 12.
well, a negative plus a negative always will be a negative
example:
-1+-1=-2
