Keystone High School Discrete Mathematics Sequences & Series Questions Quiz

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David Williams
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Conic Sections Take Test: 9.03 Circles Quiz
Take Test: 9.03 Circles Quiz
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Multiple Attempts This test allows 3 attempts. This is attempt number 1.
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QUESTION 1
What is the equation of the following graph?
4
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2 points
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Question Completion Status:
x2 + y2 = 1
x2 – y2 = 1
x2 + y2 = 2
x2 + y2 = –2
QUESTION 2
2 points
Save Answer
2 points
Save Answer
What is the radius of the following graph?
6
1
2
4
QUESTION 3
What is the equation of the following circle?
Question Completion Status:
(x + 4)2 – (y + 3)2 = 6.25
(x + 4)2 + (y + 3)2 = 6.25
(x – 4)2 – (y – 3)2 = 6.25
(x – 4)2 + (y – 3)2 = 6.25
QUESTION 4
What is the equation of the following circle?
2 points
Save Answer
Question Completion Status:
(x + 1)2 + (y + 1)2 = 36
(x + 1)2 – (y + 1)2 = 36
(x – 1)2 + (y – 1)2 = 36
(x – 1)2 – (y – 1)2 = 36
QUESTION 5
What is the center of the following graph?
2 points
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Question Completion Status:
(–5, 6)
(5, 6)
(–4, 6)
(4, 6)
QUESTION 6
2 points
Save Answer
Write the equation of a circle with a center at (–5, –1) and a radius of 5.
(x – 5)2 + (y – 1)2 = 25
(x + 5)2 + (y + 1)2 = 25
(x + 5)2 + (y + 1)2 = 5
(x – 5)2 + (y – 1)2 = 5
QUESTION 7
2 points
Save Answer
Write the equation of a circle with a center at (15, –35) and a diameter of 100.
(x – 15)2 + (y + 35)2 = 250
(x – 15)2 + (y + 35)2 = 50
(x – 15)2 + (y + 35)2 = 2500
(x – 15)2 + (y + 35)2 = 100
Question Completion Status:
QUESTION 8
2 points
Save Answer
Write the equation of a circle with a center at (2, –3) and a radius of
(x + 2)2 + (y – 3)2 =
(x + 2)2 + (y – 3)2 =
(x – 2)2 + (y + 3)2 =
(x – 2)2 + (y + 3)2 =
QUESTION 9
2 points
Save Answer
Write the equation of a circle with a center at (0, 0) and a radius of 2.
x2 + y2 = 2
x2 + y2 = 4
x2 – y2 = 4
x2 – y2 = 2
QUESTION 10
What is the point of symmetry for the following circle?
2 points
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Question Completion Status:
(1, 3)
(2, 0)
(1, 2)
(0, 2)
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Discrete Mathematics: Sequences and Series
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Take Test: 11.03 Discrete Mathematics: Sequences and Series Unit Exam
Take Test: 11.03 Discrete Mathematics: Sequences
and Series Unit Exam
Test Information
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Instructions
Multiple Attempts
Question Completion Status:
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QUESTION 1
Save and Submit
2 points
Save Answer
Which of the following represents an arithmetic sequence?
10, 8, 6, 5,…
6, 8, 11, 13,…
5, 3, 1, -1,…
5, -5, 5, -5,…
QUESTION 2
The following is an arithmetic sequence.
True
False
2 points
Saved
2 points
Saved
2 points
Saved
2 points
Saved
The following is an arithmetic sequence.
7, 6.5, 6, 5,…
True
False
QUESTION 4
The following is an arithmetic sequence.
2, 5, 8, 10,…
True
False
QUESTION 5
What is the common difference of the following arithmetic sequence?
100, 102, 104, 106,…
Question Completion Status:
1
2
3
4
QUESTION 6
2 points
Saved
2 points
Saved
What are the next 3 terms in the following sequence?
5, 7, 9,…
11, 13, 15
11, 13, 16
11, 14, 16
12, 15, 17
QUESTION 7
What is the common difference of the following arithmetic sequence?
3, 13, 23, 33,…
10
11
12
13
QUESTION 8
2 points
What is the common difference of the following arithmetic sequence?
Saved
-2
1
-1
QUESTION 9
2 points
Saved
2 points
Saved
2 points
Saved
2 points
Saved
What are the next 3 terms of the following sequence?
-3, -8, -13,…
-19. -24. -29
-18, -23, -28
-18, -24. -29
-17, -22, -27
QUESTION 10
Question Completion Status:
10, 13, 16
10, 14, 16
10.5, 14, 17.5
11, 14, 18
QUESTION 11
Find the four arithmetic means between 40 and 10.
33, 27, 21, 15
36, 30, 24, 18
34, 28, 22, 16
30, 32, 34, 36
QUESTION 12
Find the 10th term of an arithmetic sequence if t1 = 2.1 and t4 = 1.83.
1.2
1.29
1.27
1.38
QUESTION 13
2 points
What is the 5th term of an arithmetic sequence if t3 = 10 and t7 = 26?
Saved
22
24
QUESTION 14
2 points
Saved
Find S10 for 10 + 8 + 6 + 4 +…
8
10
12
14
QUESTION 15
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
Find S20 for the series -1 + -3 + -5 + -7 +…
-399
Question Completion Status:
-420
-380
-400
QUESTION 16
Find S15 for the series -1 + -3 + -5 + -7 +…
-240
-225
-210
-224
QUESTION 17
Find S20 for the arithmetic series 8 + 16 + 24 + 32 +…
1672
1688
1664
1680
QUESTION 18
The following is a geometric sequence.
-2, -6, -18, -54,…
True
2 points
Saved
QUESTION 19
2 points
Saved
2 points
Saved
2 points
Saved
The following is a geometric sequence.
3, 5, 7, 9,…
True
False
QUESTION 20
The following is a geometric sequence.
7, 10, 13, 16,…
True
False
QUESTION 21
Question Completion Status:
The following is a geometric sequence.
-1, -3, -9, -28,…
True
False
QUESTION 22
2 points
Save Answer
2 points
Save Answer
What is the common ratio of the following sequence?
8, 64, 512, 4096,…
7
8
9
10
QUESTION 23
What is the common ratio of the following sequence?
-3, -12, -48, 192,…
1
2
3
4
QUESTION 24
2 points
Saved
4000, 20,000, 100,000
5000, 20,000, 100,000
5000, 10,000, 50,000
QUESTION 25
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
What is the common ratio of the following sequence?
7, 21, 63, 189,…
1
2
3
4
QUESTION 26
Question Completion Status:
Find two geometric means between 4 and 13.5.
6, 9
7, 11
8, 12
9, 14
QUESTION 27
Find the four geometric means between 4 and 972.
12, 36, 108, 324
12, 36, 98, 284
12, 48, 144, 322
12. 48. 144. 432
QUESTION 28
2 points
Saved
Find the 6th term of a geometric sequence with t4 = 189 and t9 = 45,927.
5103
1701
1259
567
QUESTION 29
2 points
Saved
30,156
93,546
147,456
QUESTION 30
2 points
Saved
Find S12 for the series 1 + 1.5 + 2.25 + 3.375 +…
113.3
171
209.8
257.5
QUESTION 31
Find S9
2,441,406
2 points
Save Answer
2 points
Save Answer
Question Completion Status:
488,281
218,366
97,657
QUESTION 32
Find S8 for the series -2 + -10 + -50 + -250 +…
-39,062
-87,342
-195,312
– 976,562
QUESTION 33
2 points
Saved
2 points
Saved
Find S5 for the series -2 + -10 + -50 + -250 +…
-1562
-312
-7812
-3492
QUESTION 34
Find the sum of the infinite geometric series 8 + 4 + 2 + 1 +…if it exists.
17
16
QUESTION 35
2 points
Saved
2 points
Saved
2 points
Saved
Find the sum of the following infinite geometric series, if it exists.
4 + 3.2 + 2.56 + 2.048 + …
Does not exist
20
22
24
QUESTION 36
5
Question Completion Status:
6
7
9
QUESTION 37
Find the sum of the following infinite geometric series, if it exists.
Does not exist
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Semester 2 Exam
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Take Test: 12.00 Semester 2 Exam
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QUESTION 1
2 points
Save Answer
Which of the following is the correct matrix representation of the Saturday movie ticket sales?
Ticket Sales for Thursda
Ticket Sales for Friday Chil Ticket Sales for Saturda
y Children
Adults
dren
Adults
y Children
Adults
Regular
257
183
355
402
398
423
Matinee
135
168
242
311
376
386
QUESTION 2
If A =
QUESTION 3
and B =
2 points
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2 points
Save Answer
, find B – A.
Matrix A has dimensions 5 x 4. Matrix B has dimensions 4 x 3. These two matrices can be multiplied.
True
False
QUESTION 4
2
i t
QUESTION 4
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
Question Completion Status:
Evaluate
QUESTION 5
Evaluate
Does not exist.
QUESTION 6
Find the determinant of
-10
6
10
18
QUESTION 7
When lines intersect in one place, they are ____________________.
consistent
independent
dependent
inconsistent
QUESTION 8
Does the following system of equations have a solution?
Question Completion Status:
Yes
No
QUESTION 9
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
What is the approximate solution of the following system of equations?
(-1, 1)
(-1, -1)
(1, -1)
(1, 1)
QUESTION 10
Solve y = 2x – 4 by the substitution method.
7x – 5y = 14
(0, 2)
(2, 0)
(-2, 1)
(1, 3)
Q U E S T I O N 11
Solve the following system of equations by using the substitution method.
x+y=1
3x – y = 11
(-3, 4)
(6, -5)
(3, -2)
Inconsistent
QUESTION 12
Solve the following system of equations by using the elimination method.
2x – 3y = -10
3x + 5y = 4
(2, -2)
(-2, 2)
Inconsistent
Consistent
Consistent
Question Completion Status:
QUESTION 13
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
Solve the following system of equations by using the elimination method.
2x – 4y = 8
3x + 8y = -2
(1, 3)
(4, 5)
(2, -1)
(-2, -1)
QUESTION 14
Solve the following system of equations using matrices.
2x + 4y = 16
-4x – 8y = 32
(2, 2)
(-2, -2)
Consistent
Inconsistent
QUESTION 15
Solve the following system of equations using matrices.
y = 2x – 2
3x – 6y = -6
(1, 0)
(3, 4)
(-2, -2)
(2, 2)
QUESTION 16
The difference of two numbers is 4. 5 times the smaller number is four more than three times the
larger. Find the two numbers.
-10 and -14
10 and 14
8 and 12
-8 and -12
QUESTION 17
Which of the following is a solution to the following system of inequalities?
(1, 1)
(-4, 0)
(3, -3)
2 points
Save Answer
(0, 5)
Question Completion Status:
QUESTION 18
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
The following is the solution of x – 2y > -2.
x + y ≥ -3
True
False
QUESTION 19
Solve x + 2y = 10
-2x – 4y = 24
5x + 5y + 5z = 15
Infinite number of solutions
no solutions
(2, 4, -3)
(0, -6, 9)
QUESTION 20
Solve x + 2y = 50-2x + 3y = 405x + 5y + 5z = 300
(10, 20, 30)
(-10, -20, -30)
(10, 20, -30)
(10, -20, 30)
QUESTION 21
The perimeter of a triangle is equal to 12 inches. The length of the longest side is equal to the sum of
the other two sides minus 2. If you multiply the shortest side by 3 and add one, it will equal 2 times the
longest side. Find the side lengths
Shortest side = 1 inch, Middle side = 4 inches, Longest side = 7 inches
Shortest side = 3 inch, Middle side = 4 inches, Longest side = 5 inches
Shortest side = 2 inch, Middle side = 3 inches, Longest side = 7 inches
Shortest side = 2 inch, Middle side = 4 inches, Longest side = 6 inches
QUESTION 22
Which of the following are congruent?
The opposite sides in a kite
The opposite angles in a trapezoid
The opposite angles in a parallelogram
The diagonals in a rhombus
2 points
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QUESTION 23
Question Completion Status:
2 points
Save Answer
YWXZ is a rhombus with diagonals that intersect at point S. Angle WSX measures
Find
the value of x.
26
56
34
Not enough information is given
QUESTION 24
ABCD is a parallelogram. Angle C is equal to
2 points
and angle D is equal to
Save Answer
. Find x
80
77.5
60
56.5
QUESTION 25
2 points
Save Answer
Triangle ABC is congruent to triangle XYZ. Angle A measures 50° angle B measure
angle X measures
° Find the value of x.
20.5
13.67
16
10.5
QUESTION 26
2 points
° and
Save Answer
Triangle ABC is congruent to triangle XYZ. Angle A measures 50° angle B measure
angle Z measures
° Find the value of x.
20.5
13.67
16
10.5
QUESTION 27
2 points
° and
Save Answer
Triangle ABC is similar to triangle FGH. Angle A measures 42 degrees. Angle B measures 19
degrees. Find the measure of angle H.
42
19
119
29
QUESTION 28
Question Completion Status:
2 points
Save Answer
Triangle DEF is similar to triangle PQR. Side DE measures 3, side EF measures 7 and side FD
measures 9. Side PQ measures 5x – 25 and side QR measures 6x + 4. Find the value of x.
11
12
3
14
QUESTION 29
2 points
Save Answer
Point C is the center of the circle. The measure of angle ACB is 15x + 20. Arc ADB measures 20x –
10. Find the value of x.
0
7
10
17
QUESTION 30
2 points
Save Answer
Point C is the center of the circle. Arc AB measures 5x + 2. Angle ACB measures 3x + 14. Find the
value of x.
2
8
6
20
QUESTION 31
Point C is the center of the circle. What is the measure of arc ADB if [
102°
51°
258°
2 points
Save Answer
ACB is equal to 102°?
360°
Question Completion Status:
QUESTION 32
Point C is the center of the circle. What is the measure of arc AB if
2 points
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ACB is equal to 80°?
80°
40°
160°
360°
QUESTION 33
2 points
Save Answer
Circles M and K are congruent, arc QR is congruent to arc LN and arc OP is congruent to arc VW.
Find x.
3
-3
5
-5
QUESTION 34
2 points
Save Answer
Circles M and K are congruent, QR is congruent to LN and OP is congruent to VW. Find y.
-4
4
-3
3
QUESTION 35
Find x.
2 points
Save Answer
Question Completion Status:
96°
149°
112°
154°
QUESTION 36
Find the
if
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
is equal to 51° and angle A measures 21°
15°
93°
72°
46°
QUESTION 37
What is the distance between P(0, 14) and Q(5, -2)?
13
14
QUESTION 38
Find the midpoint of
if P (8, 3) and Q(5, 2)?
(2.5, 6.5)
(6.5, 2.5)
(5.5, 3.5)
(3.5, 5.5)
QUESTION 39
The equation
represents a __________.
parabola
circle
hyperbola
ellipse
QUESTION 40
What is the focus of the followingQuestion
graph? Completion Status:
(0, 6)
(6, 0)
(0, -6)
(-6, 0)
QUESTION 41
2 points
Save Answer
2 points
Save Answer
What is the equation of the following graph?
QUESTION 42
What is the equation of the following graph?
Question Completion Status:
QUESTION 43
2 points
Save Answer
What is the equation of the parabola with a focus at (-3, 0) and a directrix x = 3.
QUESTION 44
2 points
Save Answer
Write the equation of a parabola with a vertex at (-3, 7) and a directrix x = -8.
QUESTION 45
What is the symmetry of the following graph?
2 points
Save Answer
Question Completion Status:
x=2
x = -2
y=5
y = -5
QUESTION 46
2 points
Save Answer
2 points
Save Answer
What is the equation of the following graph?
x2 + y2 = 1
x2 + y2 = 4
x2 + y2 = 16
x2 + y2 = 17
QUESTION 47
What is the equation of the following circle?
(x + 1)2 + (y + 1)2 = 36
(x + 1)2 – (y + 1)2 = 36
(x – 1)2 + (y – 1)2 = 36
(x – 1)2 – (y – 1)2 = 36
(x
1)
(y
1)
36
Question Completion Status:
QUESTION 48
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
What is the radius of the following circle?
8
10
–5
5
QUESTION 49
Write the equation of a circle with a center at (–7, –7) and a radius of 7.
(x + 7)2 + (y + 7)2 = 49
(x + 7)2 + (y + 7)2 = 7
(x + 7)2 + (y + 7)2 = 14
(x – 7)2 + (y – 7)2 = 49
QUESTION 50
Write the equation of a circle with a center at (15, –35) and a diameter of 100.
(x – 15)2 + (y + 35)2 = 250
(x – 15)2 + (y + 35)2 = 50
(x – 15)2 + (y + 35)2 = 2500
(x – 15)2 + (y + 35)2 = 100
QUESTION 51
What is the point of symmetry for the following circle?
2 points
Save Answer
Question Completion Status:
(3, 1)
(-3, -1)
(-1, -3)
(1, 3)
QUESTION 52
2 points
Save Answer
2 points
Save Answer
Where are the vertices of the following graph?
(-9, 0) and (9, 0)
(
(0,
, 0) and (
) and (0,
, 0)
,)
(0, 2) and (0, -2)
QUESTION 53
What are the foci of the following graph?
Question Completion Status:
(-7, 3) and (5, 3)
(-1-
, 3) and (-1 +
, 3)
(-1-
, 3) and (-1 +
, 3)
(-8, 3) and (6, 3)
QUESTION 54
2 points
Save Answer
2 points
Save Answer
What is the length of the major axis of the following graph?
8
4
18
9
QUESTION 55
What is the equation of the ellipse with foci (0, 6), (0, -6) and co-vertices (2, 0), (-2, 0)?
QUESTION 56
2 points
What is the equation of the ellipse with foci (2, 0), (-2, 0) and vertices (7, 0), (-7, 0)?
Save Answer
What is the equation of the ellipse with foci (2, 0), ( 2, 0) and vertices (7, 0), ( 7, 0)?
Question Completion Status:
QUESTION 57
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
Ellipses have symmetry through both their minor and major axes.
True
False
QUESTION 58
What is the equation of the following graph?
QUESTION 59
What is the equation of the following graph?
Question Completion Status:
=1
QUESTION 60
2 points
Save Answer
2 points
Save Answer
What are the vertices of the following graph?
(2, 1) and (-6, 1)
(1, 2) and (1, -6)
(4, -2) and (-2, -2)
(-2, 4) and (2, 2)
QUESTION 61
Write the equation of a hyperbola with vertices at (-4, 0) and (4, 0) and co-vertices (0, 5) and (0, -5).
QUESTION 62
2 points
Save Answer
Write the equation of a hyperbola with vertices at (1,1) and (9, 1) and foci at (0, 1) and (10, 1).
Question Completion Status:
QUESTION 63
2 points
Save Answer
The symmetry of a hyperbola with a center at (h, k) only occurs at y = k and x = h.
True
False
QUESTION 64
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
What are the odds of picking an “m” in the word Mississippi?
1:9
1 : 10
1 : 11
1 : 12
QUESTION 65
What are the odds of picking an “o” in the word “footloose”?
4:9
4:8
4:6
4:5
QUESTION 66
Experimental probability is based on performing trials.
True
False
QUESTION 67
A bag contains 4 white marbles, 3 black marbles, and 5 red marbles. Find the probability of picking a
red marble?
QUESTION 68
2 points
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A bag contains 4 white marbles, 3 black marbles, and 5 red marbles. Find the probability of picking a
white marble?
QUESTION 69
2 points
Save Answer
Annie is choosing an outfit for the day. She has a choice of 3 pairs of pants, 4 shirts, and 3 pairs of
shoes. How many different outfit choices does she have?
36
27
18
9
QUESTION 70
2 points
Save Answer
A bag has 5 red marbles, 6 blue marbles
4 black marbles.
Questionand
Completion
Status: What is the probability of picking a red
marble, replacing it, and then picking a blue marble?
QUESTION 71
2 points
Save Answer
A bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of picking a red
marble, replacing it, and then picking a blue marble?
QUESTION 72
2 points
Save Answer
A bag has 4 green marbles, 3 red marbles, and 3 yellow marbles. What is the probability that you pick
a yellow marble, do not replace it, and pick another yellow marble?
QUESTION 73
2 points
Save Answer
A bag has 4 green marbles, 3 red marbles, and 3 yellow marbles. What is the probability that you pick
a yellow marble, do not replace it, and pick a green marble?
QUESTION 74
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
In how many ways can a music teacher arrange 24 students in 3 rows?
12,144
9240
10,626
7980
QUESTION 75
In how many ways can a student arrange 20 CDs in 4 CD player?
1,860,480
116,280
61,560
6840
QUESTION 76
A test consists of 20 problems and students are told to answer any 10 of these questions. In how
many different ways can they choose the 10 questions?
168,394
184,756
192,548
203,832
Question Completion Status:
QUESTION 77
2 points
Save Answer
A pizza place offers 5 different cheeses and 10 different toppings. In how many ways can a pizza be
made with 3 cheese and 6 toppings?
1200
1500
1800
2100
QUESTION 78
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
Expand (2x – 3)5.
32×5 – 240×4 + 720×3 – 1080n2 + 810n – 243
32×5 – 240×4 – 720×3 – 1080n2 – 810n – 243
32×5 + 240×4 + 720×3 + 1080n2 + 810n + 243
32×5 + 240×4 + 720×3 – 1080n2 – 810n + 243
QUESTION 79
Expand (2x + y)5.
32×5 + 80x4y + 80x3y2 + 40xy2 + 10xy4 + y5
32×5 – 80x4y + 80x3y2 – 40xy2 + 10xy4 – y5
32×5 – 80x4y – 80x3y2 – 40xy2 – 10xy4 – y5
32×5 – 80x4y + 80x3y2 – 40xy2 – 10xy4 + y5
QUESTION 80
The third term of (a – 3b)5 is -90a3b2.
True
False
QUESTION 81
The third term of (y – x)4 is -6y2x2.
True
False
QUESTION 82
Find the mean of the following set of data. Round your answer to two decimal places.
48, 65, 57, 54, 61, 57, 52, 61, 57
51.2
55.78
56.89
58
QUESTION 83
2 points
Save Answer
What is the variance of the following data? If necessary, round your answer to two decimal places.
13, 11, 4, 5, 6, 9, 10, 12, 15, 16
16.34
17.15
15.29
14.36
QUESTION 84
2 points
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What is the variance of the following data? If necessary, round your answer to two decimal places.
46 53 38 67 46 57 61 42 63 55 46
46, 53, 38, 67, 46, 57, 61, 42, 63, 55, 46
78.69
Question Completion Status:
83.17
71.35
86.43
QUESTION 85
2 points
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What sampling method was used in the following scenario?
From 1000 students, half being boys and half being girls, 100 names were pulled out of a hat to
complete a survey for the school.
Simple Random Sampling
Systematic Sampling
QUESTION 86
2 points
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The time required to finish a test in normally distributed with a mean of 80 minutes and a standard
deviation of 15 minutes. What is the probability that a student chosen at random will finish the test in
more than 110 minutes?
82%
2%
34%
16%
QUESTION 87
2 points
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What percentage of the data falls outside 2 standard deviations of the mean?
0%
1%
5%
32%
QUESTION 88
2 points
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Suppose you have a normally distributed set of data pertaining to a standardized test. The mean
score is 500 and the standard deviation is 100. What is the z-score of 800 point score?
2.5
3
1.5
0.5
QUESTION 89
2 points
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Suppose you have a normally distributed set of data pertaining to a standardized test. The mean
score is 500 and the standard deviation is 100. What is the z-score of 450 point score?
1.5
1
0.5
-0.5
QUESTION 90
2 points
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2 points
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The following sequence is arithmetic.
2, 4, 6, 8, 10
True
False
QUESTION 91
What is the d value of the following arithmetic sequence?
27, 41, 55, 69, 83, 97….
13
-13
-14
14
Question Completion Status:
QUESTION 92
2 points
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2 points
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2 points
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2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
Save Answer
2 points
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Find the five arithmetic means between -2 and 16.
1, 4, 7, 11, 14
1, 3, 6, 9, 12
1, 4, 7, 10, 13
0, 3, 7, 10, 13
QUESTION 93
Find the 2nd term of an arithmetic sequence if t1 = 0 and t5 = 16?
8
6
4
2
QUESTION 94
Find S7 for 3 + 9 + 15 + 21 +…
117
132
147
168
QUESTION 95
The following is a geometric sequence.
4, 5, 6.25, 7.8125 …
True
False
QUESTION 96
What is the r value of the following geometric sequence?
-81, 54, -36, 12,…
QUESTION 97
Find three geometric means between 3 and 48.
7, 20, 36
7, 18, 33
6, 15, 27
6, 12, 24
QUESTION 98
Find the 8th term in the geometric sequence with t4 = 48 and t6 = 192.
768
192
QUESTION 99
Find the sum of the geometric sequence 3 24 192 1536
Find the sum of the geometric sequence 3, 24, 192, 1536.
1735
Question Completion Status:
1765
1745
1755
QUESTION 100
2 points
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Find the sum of the following infinite geometric series, if it exists.
4 + 3 + 2.25 + 1.6875 +…
Does not exist
12
14
16
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