Answer:
x-4
Step-by-step explanation:
We have to calculate each product and combine like terms in the following
(√x+2)(√x-2)
Now, (√x+2)(√x-2) {We have to apply the formula (a+b)(c+d) = a(c+d)+b(c+d)}
= √x(√x-2) + 2(√x-2)
= √x.√x -2√x +2√x-2.2
= x-2√x+2√x -4 {Since, √x.√x =x , using the formula xᵃ. xᵇ =x⁽ᵃ⁺ᵇ⁾ }
Now, combining the rational and irrational terms separately we get,
=(x-4)+(2√x-2√x)
=x-4 {Since 2√x and -2√x cancel each other}
(Answer)
(A) because a right angle is 90 degrees and has a equal eqivalent to get to 100
Her commission was $350 dollars!
Answer:
90
Step-by-step explanation:
The angle formed outside = 1/2(difference of intercepted arcs)
The large arc is 360-x and the inner arc is x
x = 1/2 (360 -x - x)
x = 1/2 (360 -2x)
Multiply each side by 2
2x = 360 -2x
Add 2x to each side
2x+2x = 360
4x= 360
Divide by 4
4x/4 = 360/4
x = 90
