Answer:
60
Step-by-step explanation:
Answer:
a. Geometric
b. 20, 10 and 5
c. Tn = 20(0.5)^n-1
d. 0.00004 ft
Step-by-step explanation:
a. The sequence is geometric
The reason for this is that we will be multiplying each term by a particular value
If it was arithmetic, we would have been adding instead. But since it is geometric, we shall multiply terms by a particular number
b. 1st term is
20
second term
1/2 * 20 = 10
Third term
1/2 * 10 = 5
c. Explicit formula
Mathematically, that will be;
Tn = ar^n-1
Where r is 1/2 or 0.5
Tn = a(0.5)^n-1
where Tn is the present term and n is the present number of the term
d. 20th term
T20 = 20 * 0.5^19
T20 = 0.00004 ft
Answer:
NO solution, this statement is not true.
Step-by-step explanation:
Distribute
1.5x-12=3/2x-1.2
Combine Like terms
1.5x=3/2x+10.8
Combine like terms
0=10.8
NO solution! 0 is NOT equal to 10.8!
Answer:
The volume is 128cm^3
Step-by-step explanation:
Given
Required
Determine an expression for its volume
Find the volume
Volume of a cube is:
Where x represents the length of a side
So, volume of 2 cubes would be:
Solving (b): Volume when x = 4
Substitute 3 for x in
<em>Hence, the volume is 128cm^3</em>
Answer:
60
Step-by-step explanation:
AOC= AOB+ BOC
104= 7x+30 +9x+42
104= 16x+72
subtract both sides by 72
104-72=16x
32=16x
divide both sides by 16
x=2
BOC= 9(2) +42
BOC= 60
