1. Find the next two terms of the sequence. 2, 6, 10, 14, …
A: 16, 18
B: 18, 24
C: 18, 22
D: 16, 20***
2. Find the next two terms in the sequence.
10, 4, -2, -8, …
A: -6, -10
B: -10, -12
C: -12, -16
D: -14, -20***
3: Find the next two terms of the sequence. 2, 20, 200, 2000, …
A: 20,000 to 200,000***
B: 20,000 to 2,000,000
C: 4, 40
D: 200,000 to 2,000,000
4: Find the next two terms of the sequence.
1.1, 2.2, 3.3, 4.4,…
A: 4.5, 5.5
B: 5, 6
C: 5.6, 6.7
D: 5.5, 6.6***
5. Say if the sequence is arithmetic. If so, identify the common difference.
-7, -3, 1, 5,…
A: Not arithmetic
B: Arithmetic, the common difference is 4***
C: Arithmetic, the common difference is 8
D: Arithmetic, the common difference is 7 Arithmetic Sequences Practice Unit 5 Lesson 7
1 C
2.D
3.A
4.D
5.B
6.A
7.B
8.A
9.C
10.C
10/10 100%
Enjoy! Three Possums in a Trenchcoat is correct, I got the same answers as them and got 100.
except for #7, I thought it was A but when I looked closely at the question, I knew it was B. 5.7.4 – Practice: Practice arithmetic sequences
1 C
2.D
3.A
4.D
5.B
6.A
7.B
8.A
9.C
10.C
STILL ALL CORRECT
100% 😉 I just realized that I gave up because if this lesson and this question time flies 1. Wrong, the pattern in the sequence is +4 so 2+4=6+4=10+4 =14 then add 4 14+4 =18+4= 22. This gives the answer, 18 and 22.
2. Fix
3. Fix
4. I agree
5. Correct -6, -1, 4 Thanks @Three Possums in a Trenchcoat Came here to check my answers and got them all correct! three opossums in a trench coat is okay.
But the letters won’t help you because you may not have the same arrangement of options as the people submitting their responses. That’s why you need the answers written here.
1. Start with 2 and add 4 repeatedly.
2. Start with 2 and multiply by 2 repeatedly.
3. 15, 18, 21
4. geometric
5. 1/128
6. 25, 45, 70
7. Does your classmate add the same number to 2 to get 3 and so on? Or does she multiply these numbers by her ratio?
Remember that when sharing responses, be sure to include written responses. Jojo, then look for the written answers in your second life. Believe me, it will help. What is the next term of the geometric sequence 3, −9, 27, −81?
A.−243 B.234 C.243 D.−234
FINITE AND INFINITE GEOMETRIC SEQUENCE
MATHEMATICS10-TERM1-WEEK3
5
2) What is the 6
e
term of the geometric sequence 1
5
, 2 , 20 , 200 , . . . ?
A. 2,000 B. 20,000 C. 200,000 D. 2,000,000
3) Find the 8
e
term of a geometric sequence where the third term is 25 and the
common ratio is 4?
A.200 B.600 C.6,400 D.25,600
4) What is the ratio of the geometric sequence −
3
6
−
3
8
−
3
4
−
3
2
…?
A.2 B.1
2
C.-2 D.-
1
2
5) Which of the following propositions is an infinite geometric sequence?
A.50, 55, 60, 65, … C.3
2
9, 54, 324, 1944, …
B.0, 1, 1, 2, 3, 5, 8, … D.17, 34, 68, 136, 272
6) Which of the following is a finite geometric sequence?
A.2.5, 7.5, 22.5, 67.5 C. -20, -14, -8, -2, 4
B. 5, 7, 12, 19, 31, 50 D. 4, 2, 1, 1
2
,
1
4
,
1
8
…
7) The fourth term of a geometric sequence is 2
5
. If the common ratio is 4, find the
a1.
A.1
ten
B.1
40
C.1
160
Day 8
5
8) During this pandemic, a confirmed COVID case starts at 2, 12 and 72 on the
first, second and third DOH updates. If it continues to update at this rate, how
Many Cases Confirmed in Seventh DOH Update?
A.432 B.2,592 C.15,552 D.93,312
for items 9-10
The third term of a geometric sequence is 567 and the fourth term is 5103.
9) Find the common ratio.
A.9 B.3 C.7 D.2
10) Find the first term and the fifth term.
A. 142 and 10 206 C. 63 and 15 309
B.11.57 and 35721 D.7 and 45927
Solve the following.
The fifth term of a geometric sequence is 64 and the fourth term is 32.
11) Find the constant ratio.
_________________________________________________________
MATHEMATICS10-TERM1-WEEK3
6
12) Find the first term.
_________________________________________________________
The fifth term of a geometric sequence is 243 and the sixth term is 729
13) Find the constant ratio.
_________________________________________________________
14) Find the first term and the seventh term.
_________________________________________________________
15) Find the fifth term of a geometric sequence whose 1st term is 4 and common
report 5.
_________________________________________________________
Indicate whether each of the following sequences is geometric or not.
16) 7, 10, 13, 16, 19, …
17) 11, 22, 44, 88, 176, …
18) 1
2
,
1
4
,
1
8
,
1
16
…
19) 27, 29, 31, 33, 35, …
20) 4
9
,
8
27
,
16
81
,
32
243 finding the I got u ^^ is always 100% correct
1. 18.22
2. -14, -20
3. 20,000, 200,000
4.5.5, 6.6
5. Arithmetic, the common difference is 4 Briefly
DDADB