Answer:
a. 480
b. 3480
Step-by-step explanation:
a. Because 3000 times 1.6% is 48, 48 times 10 is 480.
b. Because 480 plus 3000 is 3480
The volume of the pyramid is 
Explanation:
The height of the square pyramid is 18 cm
The base of the square pyramid is 11 cm
The volume of the square pyramid can be determined using the formula,

Substituting
and
in the formula, we have,

Simplifying, we have,

Multiplying, we get,

Dividing, we get,

Thus, the volume of the pyramid is 
Answer:
It took 2 hours by plane
Step-by-step explanation:
let bus is represented by x and plane is represented by y
the total distance of bus and plane will be represented by equation:
40 x + 600 y = 1320 (1)
the total time taken by bus and plane will be represented by:
x + y = 5 (2)
solving equations (1) and (2) simultaneously:
Multiply by 40 on both sides in eq (2) and then subtract (1) and (2)
40 x + 600 y = 1320
40 x + 40 y = 200
_______________
560 y = 1120
y = 1120/ 56
y= 2
since plane is represented by y so, the time they spent travelling by plane is 2 hours.
Answer:
5 + 4i
Step-by-step explanation:
In general, the conjugate of a + bi is a - bi