3
6
45
48
90
Correct answer is D
a = 1st term ; ar4 = 5th term
∴ ar4 = a(2)4 = 16a; 16a = 45 + a, a = 3;
3(2)4 = 48
4d
5d
6d
a + 5d
2a + 4d
Correct answer is C
Tn = a + (n - 1)d; AP; a = 2d; Tn = 2d + (n - 1)d
T5 = 2d + (5 - 1)d = 2d + 4d = 6d
Find the coordinates of point B
(0,11/2)
(O,2)
(2,0)
(11/2, 2)
(11/2, 0)
Correct answer is E
B occurs at the point y = 0.
When y = 0, we have
4x + 3(0) = 6
4x = 6
x = 1\(\frac{1}{2}\)
B = \((1\frac{1}{2}, 0)\)
The shaded portion shows the outer boundary of the half plane defined by the inequality
4x + 3y \(\geq\) 6
4x + 3y = 6
4x + 3y < 6
3y >6
4x < 6
Correct answer is A
The region is denoted by 4x + 3y \(\geq\) 6
Find the perimeter of the region
22cm
33cm
40cm
47cm
66cm
Correct answer is C
P = \(\pi\)r + \(\pi\)r + R = \(\frac{22}{7}\) x 7 + \(\frac{22}{7}\) x \(\frac{7}{2}\) + 7
P = 22 + 11 + 7 = 40cm
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