Let i = sqrt(-1) which is the conventional notation to set up an imaginary number
The idea is to break up the radicand, aka stuff under the square root, to simplify
sqrt(-8) = sqrt(-1*4*2)
sqrt(-8) = sqrt(-1)*sqrt(4)*sqrt(2)
sqrt(-8) = i*2*sqrt(2)
sqrt(-8) = 2i*sqrt(2)
<h3>Answer is choice A</h3>
25% of 42=25 divided by 100 x 42
25\100 x 42=10.5
The sum of angles in a triangle is 180 degree
First angle + second angle + third angle = 180
From the given diagram , AC = BC
The angle opposite to the sides are also equal
So angle A and angle B are equal
Angle A = 50 so angle B = 50 degree
angle B = 2x = 50
Divide both sides by 2
So x= 25 degree
Angle A + angle B + angle C = 180
50 + 50 + 5y + 10 = 180
100 + y + 10 = 180
110 + 5y = 180
Subtract 110 on both sides
5y = 70
now divide both sides by 5
The value of y = 14
Answer:
A, C, D
Step-by-step explanation:
42 + 14 = 56
38 + 18 = 56
67 + 33 = 100
70 + 30 = 100
93 + 35 = 128
95 + 33 = 128
B)
40 + 22 = 62
32 + 10 = 42
62 ≠ 42