1st is 19
2nd is 23
3rd is 27
4th is 31
5th is 35
6th is 39
7th is 43
8th is 47
9th is 51
10th is 55
This is because you are adding 4 each time, the rule of the sequence is 4n+15
Answer:
The correct answer to the exercise is:
- Surface area of a circle = 633.1
Step-by-step explanation:
To obtain the surface area of a circle, you can use the formula:
- Surface area of a circle = π *
Where:
- π = 3.14 (the exercise give this)
- r = Circle radius.
How you can see, in the picture gives you a straight line that passes through the circle side by side, the circle radius is half of that value, then:
- r = 28.4 mm / 2
- <u>r = 14.2 mm</u>
Now, we can replace the values in the first formula:
- Surface area of a circle = π *
- Surface area of a circle = 3.14 *
- Surface area of a circle = 3.14 * 201.64
- Surface area of a circle = 633.1496
- Surface area of a circle = 633.1 (rounded to the nearest tenth).
C; since this is a function of N you are replacing N for 10
Answer:
1. 3/10
2. 2/10
Step-by-step explanation:
Answer:
$132
Step-by-step explanation:
1) In this system of eqn x represents the price of washing cars and y represents the price of washing SUVs
2) From the given eqn,
y = (84 - 4x)/2
and
y = (126 - 3x)/5
equating both the equation,
(84 - 4x)/2 = (126 - 3x)/5
=> 210 - 10x = 126 - 3x
=> 7x = 84
=> x = 12
=> y = (84 - 48)/2 = 18
Hence the co-ordinate of intersection will be (12,18)
3) The total cost of 1 car and 1 suv = x + y = 12 + 18 = $ 30
4) The total earning of hour 3
= 5x + 4y
= 5.12 + 4.18
= 60 + 72
= $ 132