Answers
========================================================
Explanation:
The notation [tex]a_1[/tex] refers to the first term. So the first term is 21.
The d = -3 is the common difference. It's the value we add onto any given term to get the next following term.
We can say:
second term = (first term) + (common difference)
second term = [tex]a_1 + d[/tex]
second term = 21 + (-3)
second term = 18
Through similar steps, you should find that the third term is 15, the fourth is 12, and so on. Each time we decrease by 3.
The arithmetic sequence would be: 21, 18, 15, 12, 9, ...
The first three terms are 21, 18, and 15.
Related Questions
Mike needs to tile his bathroom . His bathroom is 8 feet by 7 feet How much tile does he need to cover the area of his bathroom ?
Answers
Answer:
56 Sq Ft
Step-by-step explanation:
8x7= 56
According to a town's census a household's number of visits to a gas station has a mode of 3 visits per week. Jane surveys 20
homes in her neighborhood and finds the mode to be 6 visits. How can she get her survey statistics to more closely approximate
the population parameters?
A)
Choose some different houses to survey.
B)
Get a more random sample from the town.
C
Increase the number of houses that she surveys.
D)
Recalculate because she must have made a mistake.
Answers
Answer:B Get a more random person sample from the town
Step-by-step explanation:
Which of the following are solutions to the equation below?
2 cos^2 x – 1= 0
Answers
Answer:
no clue
Step-by-step explanation:
9
Solve for x: 5x + 6 = 7
Correct Answer
SHOW HINT
Math
Answers
Answer:
1/5 or 0.2
Step-by-step explanation:
5(0.2)+6=7
plug in and multiply :)
Answer:
5x+6=7
or,5x=7-6
or,x=1/5
therefore,x=0.2
I hope this will help you
Let the vector v have an initial point at (3,−2) and a terminal point at (3,−7). Determine the components of vector v
Answers
Answer:
(0,-5)
Step-by-step explanation:
Terminal minus initial. (3-3, -7+2) = (0,-5)
hope this helps
At a football match, 25% of the spectators wore red T-shirts and 3750 spectators did not wear red T-shirts. How many spectators were there
Answers
Answer:
5000
Step-by-step explanation:
Given data
25% wore red-T shirt
75% did not wear red T-shirt= 3750
Let the total spectator be represented by 100%
Let the total be x
75/100*x= 3750
0.75x= 3750
x= 3750/0.75
x= 5000
Hence thte total number of spectators is 5000
Ayudaaaaa porfavor Convertir las unidades de medida 8 000 m = _______ km 4 000 g = _______ kg 3 000 m = ________ km 7 m = _________ cm 30 mm _________ cm 10 cm ________ mm 70 mm ___________ cm 10 L = ____________ ml 800 cm = _________ m 6 kg = __________ g
Answers
Answer:
a) [tex]x = 8\,km[/tex], b) [tex]x = 4\,kg[/tex], c) [tex]x = 3\,km[/tex], d) [tex]x = 700\,cm[/tex], e) [tex]x = 3\,cm[/tex], f) [tex]x = 100\,mm[/tex], g) [tex]x = 7\,mm[/tex], h) [tex]x = 10000\,mL[/tex], i) [tex]x = 8\,m[/tex], j) [tex]x = 6000\,g[/tex]
Step-by-step explanation:
a) 1 kilómetro equivale a 1000 metros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:
[tex]x = 8000\,m \times \frac{1\,km}{1000\,m}[/tex]
[tex]x = 8\,km[/tex]
b) 1 kilogramo equivale a 1000 gramos, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:
[tex]x = 4000\,g \times \frac{1\,kg}{1000\,g}[/tex]
[tex]x = 4\,kg[/tex]
c) 1 kilómetro equivale a 1000 metros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:
[tex]x = 3000\,m \times \frac{1\,km}{1000\,m}[/tex]
[tex]x = 3\,km[/tex]
d) 1 metro equivale a 100 centímetros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:
[tex]x = 7\,m \times \frac{100\,cm}{1\,m}[/tex]
[tex]x = 700\,cm[/tex]
e) 1 centímetro equivale a 10 milímetros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:
[tex]x = 30\,mm \times \frac{1\,cm}{10\,mm}[/tex]
[tex]x = 3\,cm[/tex]
f) 1 centímetro equivale a 10 milímetros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:
[tex]x = 10\,cm \times \frac{10\,mm}{1\,cm}[/tex]
[tex]x = 100\,mm[/tex]
g) 1 centímetro equivale a 10 milímetros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:
[tex]x = 70\,mm\times \frac{1\,cm}{10\,mm}[/tex]
[tex]x = 7\,mm[/tex]
h) 1 litro equivale a 1000 mililitros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:
[tex]x = 10\,L\times \frac{1000\,mL}{1\,L}[/tex]
[tex]x = 10000\,mL[/tex]
i) 1 metro equivale a 100 centímetros, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:
[tex]x = 800\,cm \times \frac{1\,m}{100\,cm}[/tex]
[tex]x = 8\,m[/tex]
j) 1 kilogramo equivale a 1000 gramos, entonces obtenemos el valor requerido mediante la siguiente regla de tres simple:
[tex]x = 6\,kg\times \frac{1000\,g}{1\,kg}[/tex]
[tex]x = 6000\,g[/tex]
Stella rolls a standard six-sided die, numbered from 1 to 6. Which word or phrase describes the probability that she will roll a number less than or equal to 5? \text{impossible}impossible \text{certain}certain \text{unlikely}unlikely \text{likely}likely
Answers
The probability of getting a number less than or equal to 5 is 5/6.
What is probability?"Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one".
For the given situation,
Stella rolls a standard six-sided die, numbered from 1 to 6.
The sample space for rolling a single die = {1, 2, 3, 4, 5, 6}
⇒[tex]n(s)=6[/tex]
The event is getting a number less than or equal to 5.
E = { [tex]{1, 2, 3, 4, 5}[/tex] }
⇒[tex]n(e)=5[/tex]
Thus the probability of getting a number less than or equal to 5,
[tex]P(e) =\frac{n(e)}{n(s)}[/tex]
⇒[tex]P(e)=\frac{5}{6}[/tex]
Hence we can conclude that the probability of getting a number less than or equal to 5 is 5/6.
Learn more about probability here
brainly.com/question/13604758
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x + 2y = 10
x + 3y = 15
Answers
Y=5
That’s the answer because you cancel out the x by taking away so ur left with 10-2y+3y=15
Y=15-10
Y=5
So put 5 in the equation and x=0
Henry has 15 coins in his pocket. 10 of the coins are pennies, 5 of the coins are quarters. Henry pulls one coin from his pocket and, without replacing it, pulls another coin. What is the probability that he pulled two pennies from his pocket?
Answers
Answer:
The probility is hight .
Step-by-step explanation:
because there are more pennies then quarters so there's about a 85 to 75% chance
HELP ASAP, LINKS AND ABSURD ANSWERS WILL BE REPORTED! I WILL MARK BRAINLIEST!!
Answers
Answer:
1/10th?
Pretty sure that's it.
Correct me if I'm wrong,
WILL MARK BRAINLIEST
Answers
Answer:
C
Step-by-step explanation:
50% = half and 5 out of 10 is also half, if you count how many samples it has it adds up to 7 so the answer is 7
NO LINKS FIRST ANSWER= BRAINLIEST
Which situation involves a conditional probability? O A. The probability that you roll a 6 on a number cube B. The probability that you make two free throws in basketball C. The probability that you make a second free throw given that you made the first free throw O D. The probability that you are given a book for your birthday
Answers
Answer:
c
Step-by-step explanation:
its conditional because you might not make the first free throw.
The situation that involves a conditional probability is the probability that you make a second free throw given that you made the first free throw.
Thus, option (C) is correct.
Conditional probability refers to the probability of an event occurring given that another event has already occurred.
In this case, the probability of making a second free throw is dependent on the condition that you made the first free throw.
Therefore, the probability that you make a second free throw given that you made the first free throw.
Learn more about Probability here:
https://brainly.com/question/32117953
#SPJ4
A 5-kilogram bag of cement costs $18.15. What is the unit price?
Answers
Answer:3.63
Step-by-step explanation:because if we divide 18.15 by 5 is equal 3.63.
c.) The tires of an automobile have a diameter of 22 in. If the wheels revolve 18 times, how many feet does the automobile move? Evaluate for �� and round to the nearest hundredth. (Hint: use Circumference)
Answers
Answer:
396
Step-by-step explanation:
22 x 18 = 396
Final answer 396.
Easy Points, brainliest to the best description-
Don't answer unless you know the answer and are sure.
Thanks in advance.
Answers
Another Quick question, True Or False: An acute and an obtuse angle are always supplementary
Explain please
Answers
Answer:
false
Step-by-step explanation:
Supplementary means that two angles added together must equal 180. An acute angle is one less than 90 degrees, and an obtuse one is greater than 90. They will not always add up to 180.
For example, 24 is an acute angle. 134 is an obtuse angle. But they do not add up to 180 degrees, thus not supplementary.
Answer: True
Step-by-step explanation: Hope that helped!
Help me please need help
Answers
Answer:
[-9. -8]
[2. 0]
Step-by-step explanation:
all you have to do is multiple each number with the corresponding number in the other column
Answer:
Step-by-step explanation:
-5 6
1 -4
I need help on this question pls help see this A.S.A.P
Answers
Answer:
A, E
Step-by-step explanation:
a quadrilateral is a four-sided figure.
it is a square
The following box plot shows the number of books sold each day at a store for 80 days. How many days did the bookstore sell 2 to 12 books?
A box plot is drawn with end points at 0 and 16. The box extends from 2 to 12 and a vertical line is drawn inside the box at 7
40
60
70
80
Answers
Answer:
It should be 40
Step-by-step explanation:I took the test
Answer:
40:)
Step-by-step explanation:
O
100%
In the school play, 75% of the students are 6th graders.
Which ratio represents the number of 6th graders to total number of students in the play?
O A 1:4
O B. 3:1
Oc 3:4
OD. 7:5
Answers
Answer:
I'm not smart but I think 7.5
Helpmeeeeeeeeeeeeeeeeeeee
Answers
Answer:
first question: c. x = 1
6. B. y = -2x - 8
Step-by-step explanation:
first question:
perpendicular means that when it intersects, it makes a right angle.
the equation y = 5 would be parallel to any of the answers with y = ___ because all of those would result in horizontal lines
either of the x = ___ would be perpendicular to y = 5
since it has to pass through the point (1,3) that means that the equation must be x = 1
the equation x = 1 passes through any point beginning with (1 , _)
6.
parallel means that the equations have the same slope. therefore, we can eliminate both A and C
using the given point (-2 , -4),we can plug into the y = mx + b format to solve
m = -2 x = -2 y = -4
-4 = (-2)(-2) + b --> -4 = 4 + b --> b = -8
finally, our equation comes out to be y = -2x - 8
Help and thx helppppppppppppp
Answers
Answer:
area = 12x² + 88x + 96
perimeter = 16x + 40
Step-by-step explanation:
Rectangle.
Length = 2x + 12
Width = 6x + 8
area = length × width
area = (2x + 12)(6x + 8)
area = 12x² + 16x + 72x + 96
area = 12x² + 88x + 96
perimeter = 2(length + width)
perimeter = 2(2x + 12 + 6x + 8)
perimeter = 2(8x + 20)
perimeter = 16x + 40
Beatrice has 0.28 in her pocket. What percent of dollars does beatrice have
Answers
Answer:
28 is equal to 28/100. Therefore, it is 28 percent.
Steven has 17 baseball caps. He has 2 blue caps and he has 3 more green caps than blue ones. The rest of his caps are black.
How many black caps does Steven have?
Answers
Answer:
12
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
please help me thank you and if you answer please answer my question cause some fo you'll be scamming me for points
Answers
Answer:
A
Step-by-step explanation:
Answer:
A. 1cm = 20 yards
Step-by-step explanation:
Divide both by 18:
360/18 = 20
18/18 = 1
1cm = 20 yards
HELP PLEASE ASAP DUE SOON !!!! AND SHOW WORK
Answers
Answer:
201.1 square units
Step-by-step explanation:
[tex]A=\pi r^{2}[/tex]
[tex]A=\pi (8^{2})[/tex]
[tex]A=\pi (64)[/tex]
[tex]A[/tex] ≈ [tex]201.0619298....[/tex]
[tex]A[/tex] ≈ [tex]201.1[/tex] square units
The hight of a regular quadrilateral prism is h=13cm and its lateral area is 624 cm squared. Find the surface area of the prism
Answers
Answer:
912 cm^2
Step-by-step explanation:
The total surface area of a 3-dimensional object is the sum of the areas of the faces or surfaces of a 3-dimensional object
Lateral area of a prism = 4 x height x sides
624 = 4 x 13 x s
s = 12
Surface area = 2 x 12^2 + 624
(2 x 144) + 624 = 912 cm^2
can someone help me 3 x 2⁴
Answers
Answer:
3 × 2^4
2^4 = 16
3 × 16
= 48
FINAL ANSWER IS : 48
Answer:
48
Step-by-step explanation:
[tex]3 \times {2}^{4} [/tex]
[tex]3 \times (2 \times 2 \times 2 \times 2)[/tex]
[tex]3 \times 16[/tex]
[tex]48[/tex]
Hope it is helpful.....PLS HELP ME I NEED THIS DONE IN A FEW MINUTES
Answers
Answer:
(2,2)
Step-by-step explanation:
Midpoint formula, and plug in the numbers.
Hope this helps.
(x1+x2)/2,(y1+y2)/2
(1+3)/2,(3+1)/2
4/2,4/2
(2,2)