This one is no factor, cant do it
Answer:
Ai. Common ratio = 2/3
Aii. First term = 54
B. Sum of the first five terms = 422/3
Step-by-step explanation:
From the question given above, the following data were obtained:
3rd term (T3) = 24
6Th term (T6) = 64/9
First term (a) =?
Common ratio (r) =?
Sum of the first five terms (S5) =?
Ai. Determination of the common ratio (r).
T3 = ar²
T3 = 24
24 = ar²....... (1)
T6 = ar⁵
T6 = 64/9
64/9 = ar⁵......... (2)
The equation are:
24 = ar²....... (1)
64/9 = ar⁵......... (2)
Divide equation 2 by equation 1.
64/9 ÷ 24 = ar⁵ / ar²
64/9 × 1/24 = r³
8/27 = r³
Take the cube root of both side
r = 3√(8/27)
r = 2/3
Thus, the common ratio is 2/3
Aii. Determination of the first term (a).
T3 = ar²
3rd term (T3) = 24
Common ratio (r) = 2/3
First term (a) =?
24 = a(2/3)²
24 = 4a/9
Cross multiply
24 × 9 = 4a
216 = 4a
Divide both side by 4
a = 216/4
a = 54
Thus, the first term (a) is 54
B. Determination of the sum of the first five terms.
Common ratio (r) = 2/3
First term (a) = 54
Number of term (n) = 5
Sum of first five terms (S5) =?
Sn = a[1 –rⁿ] / 1 – r
S5 = 54[1 – (⅔)⁵] / 1 – ⅔
S5 = 54 [1 – 32/243] / ⅓
S5 = 54 (211/243) × 3
S5 = 54 × 211/81
S5 = 6 × 211/9
S5 = 2 × 211/3
S5 = 422/3
Thus, the sum of the first five terms is 422/3
Answer:
9.00%
Step-by-step explanation:
So, we would do
18 divided by 200 = 9.00%
Therefore your answer will be 9.00%
Hope this helps!
Answer:
1) 1.203
2) 1.291
Step-by-step explanation:
1 mL = 0.001 L
1202.57120 mL = <u>1.202</u>57120 L
round to 4 sig fig = 1.203
1g = 10dg
0.1290743 g = <u>1.290</u>743 dg
round to 4 sig fig = 1.291
Answer:
Arranging the solutions from the least to the highest;
1. 1.743 x 10⁻²
2. 3.626 x 10⁻²
3. 4.64 x 10⁻²
4. 3.162 x 10²
5. 4.214 x 10³
Step-by-step explanation:
The solutions of the mathematical expression are calculated as follows;





Arranging the solutions from the least to the highest;
1. 1.743 x 10⁻²
2. 3.626 x 10⁻²
3. 4.64 x 10⁻²
4. 3.162 x 10²
5. 4.214 x 10³