Write an
explicit formula for an, the nth term of the sequence 21, 27, 33, ....
Answers
Answer:
Step-by-step explanation:
Remark
This is an arithmetic series. Each term differs by 6 from the previous one.
Givens
a1 = 21
d = 6
Formula
a_n = a1 + (n - 1)*d
Sample
Try it.
Let's let n = 3 which we have the answer for.
a_3 = 21 + (3-1)*6
a_3 = 21 + 2 * 6
a_3 = 21 + 12
a_3 = 33
That's exactly what the 3rd term is.
Related Questions
Given a sphere with a radius of 2 cm find its volume to the nearest whole number.
A 17 cm
B.3cm
C. 33 cm
D. 3 cm
Answers
Damian’s computer repair shop earned $2,500 in income last week. Expenses were $2,750. What was Damian’s profit or loss for the week?
Answers
Answer:
2500-2750 = - 250
hence,he lost $250
how do you calculate the midpoint of question e)? I am very desperate. please help
Answers
Answer:
(-1,-1)
Step-by-step explanation:
Midpoint equation: [tex](\frac{x_2+x_1}{2}, \frac{y_2+y_1}{2})[/tex]
= [tex](\frac{-5/2+1/2}{2},\frac{-1/2-3/2}{2} )[/tex]
= [tex](\frac{-2}{2},\frac{-2}{2})[/tex]
=(-1,-1)
Use the formula and plug it in :)
5. A ladder 17 m long reaches the window of a building 15 m above
the ground. Find the distance of the foot of the ladder from the
building
Hint. Let AB be the ladder, CB be the building and B be the
window.
15 m
Then, AB = 17 cm, BC = 15 m, find AC.)
Answers
Answer:
8 m.
Step-by-step explanation:
Use the Pythagoras theorem
17^2 = 15^2 + AC^2
AC^2 = (17-15)(17+15) = 2 * 32
AC^2 = 64
AC = 8 m.
Which set of values makes the inequality x + 2 ≥ 0 true?
Answers
Answer:
-2
Step-by-step explanation:
What is the length of AB? A.2.59 B.9.66 C.10.35 D38.64
Answers
Answer:
what
Step-by-step explanation:
is the questionn
ANSWER ASAP GIVING BRAINLIEST FIVE STARS AND A HEART I ONLY NEED A FEW SENTENCES!
Please answer the following essay question:
An isosceles triangle has two congruent angles. Write an expression to represent the measure of the third angle of the triangle. Explain.
Answers
Answer:
third angle =180-two congruent angles. is expression.
Please help.............:)
Answers
Answer:
easy lol
Step-by-step explanation:
add me on sñap my ID is: arshad2623f
please i just wanted to make friends cuz I'm alone BTW I'm 15yo
Answer:
What is y,t and z?
Step-by-step explanation:
A) 7xy?
Degree and number of terms
Answers
Answer:
1 and 1
Step-by-step explanation:
degree of 1 and 1 term.
Last year, Diane opened an investment account with S6400. At the end of the year, the amount in the account had increased by 26%.
(a) Fill in the blank to write the year-end amount in terms of the original amount. Write
your answer as a decimal.
Year-end amount =. XOriginal amount
(1) Use your answer in part (ə) to determine the year-end amount in Diane's account
Year-end amount: $
Answers
Answer:
Your answer is.....
8064$
Mark it as brainlist answer . follow me for more answer.
Step-by-step explanation:
A book sold 32,100 copies in its first month of release. Suppose this represents 9.3% of the number of copies sold to date. How many copies have been sold to date? Round your answer to the nearest whole number.
Answers
Answer:
Your answer.
345161.29
Thank you. And give my answer as Brainlist answer. Follow me for more
Step-by-step explanation:
Answer:
345,161
Step-by-step explanation:
It means that [tex]32,100=.093x[/tex]. Divide each side by .093, and you get 345,161, dropping the decimal, since you can't sell a fraction of a book.
please help and quick cause im giving a lot of points
Answers
Answer: it might be C let me know if im wrong
Step-by-step explanation:
what is the answer to 2 (r-4)+5(r+2
Answers
Answer:
7r + 2
Step-by-step explanation:
I hope this helps have a great day
2r-8
Then multiply 5 by (r+2)
5t+10
Let’s sum them
(2r+5r)+(10-8)
Which is equal
7r+2
The question is 3(2x +4) = 6x + 10
Answers
Answer:
no solution
Step-by-step explanation:
when you distribute, the 6x on each side cancel out leaving there to be no solution to the problem. I attached a photo of my work as well.
Answer:
The answer is False meaning it's no solution
Step-by-step explanation:
1. Distribute 3 through the parentheses which will be 6x+12=6x+10
2.Cancel equal terms on both sides of the equation and you will get 12=10 which isn't a true statement.
HELP PLEASE ASAP
Given the discriminant of –2 for a quadratic equation, determine the number of real solutions.
Answers
Answer:
0 or simply no real solutions
Step-by-step explanation:
Given the discriminant which is negative, then the equation has no solutions in the set of real numbers. The roots or solutions belong to the set of complex solutions or imagenary roots.
Simplify the followimg
(1 1/2) ^-2 step by step explanations plzzzzzzzz
Answers
Answer:
4/9
Step-by-step explanation:
sorry if wrong i don't know how to explain it also
Answer:
Convert 1 1/2 to an improper fraction.
3/2⋅2
Cancel the common factor of 2.
3
Solve for y : y/2 - 5= -11 (I need help I’m a bit confused).
Answers
multiply each side by 2
y - 10 = -22
add 10 to both sides
y = -12
a coin is tossed several times and the ratio of the head to tails is 24:26. What Fraction of Tosses are heads?
Answers
Answer:
siiiiiiiiii
Step-by-step explanation:
jake scored 2 goals in soccer this season. jamie scored 4 times as many goals as jake. Edgar scored 3 times as many goals as jamie. How many goals did Edgar score?
Answers
Answer:
24
Step-by-step explanation:
2x4 = 8 8x3 = 24 so edgar has 24 goals
Answer: 24
Step-by-step explanation:
Jake scored 2
Jamie scored 4x2=8
Edgar scored 8x3=24
Expand- 2.5( - 3+ 4n + 8)
Answers
Answer:
10n + 12.5
Step-by-step explanation:
b+1/3=2 Plz I need it, I will give you brainiest
Answers
Answer:
[tex]1\frac{2}{3} [/tex]
Answer:
b = 5/3
Step-by-step explanation:
Ok so,
b + 1/3 = 2
b + 1/3 - 1/3 = 2 - 1/3
now you have to find the common denominator which in this case is 3. so you multiply 2 with 3 giving you six so it should look like this
b = 2/3 - 1/3
b = 1/3
i already checked...its right
i hope this helps. have a good day!
Debra made $228 for 12 hours of work.
At the same rate, how many hours would she have to work to make $323?
Answers
Answer:
17 hours
Step-by-step explanation:
Set up a proportion: [tex]\frac{12}{228} = \frac{x}{323}[/tex] Cross multiply, then divide: 12 × 323 = 3876, 3876 ÷ 228 = 17So, she would have to work 17 hours to make $323.I hope this helps!
4 Eric sketches a rectangle with a perimeter of
90 inches. The length of the rectangle is three
inches longer than the width. Which equation
can be used to determine x, the width of the
rectangle Eric sketched?
F 2x + 2x + 3 = 90
G 2(x + 3) = 90
H x(x + 3) = 90
J 2(x) + 2(x + 3) = 90
Answers
Answer:
2(x) + 2(x + 3) = 90
Step-by-step explanation:
Width: x inch.
Length: (x + 3) inch.
P = 2 [tex]w^{}[/tex] + 2 [tex]l^{}[/tex]
P = 2(x) + 2(x + 3) = 90
What is the value of x?
Answers
Answer:
jhg hstu35kk4t6ek
3tnk63e6oktelrt
Step-by-step explanation:
4n5kdti3eo5
What is the slope of the line that passes through the points (3, -20) and (11, 16)?
please I'm being timed
Answers
Answer:
9/2
Step-by-step explanation:
(3, -20) & (11, 16)
To find the slope of the line that passes through these points, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)
Plug in these values:
(16 - (-20)) / (11 - 3)
Simplify the parentheses.
= (36) / (8)
Simplify the fraction.
36/8
= 9/2
9/2 is the most simplified fraction. This is your slope.
Hope this helps!
-30=5(x+1) x=?
please help
Answers
Answer:
x = -7
-30 = 5(x + 1)
5(x + 1) = -30
5(x + 1)/5 = -30/5
x + 1 = -6
x + 1 - 1 = -6 -1
x = -7
Why do economists use market values when calculating GDP?
Answers
Answer:
Economists use market values when calculating GDP, because if they used quantity terms, they would have multiple units of measurement. Whereas, when they use market values, they have one unit of measurement for all products and services.
Step-by-step explanation:
I’ll give the Brainliest to who answers these questions with a reasonable explanation.
While surfing the Internet, you find a site that claims to offer “the most popular and the cheapest DVDs anywhere.” Unfortunately, the website isn’t clear about the how much they charge for each DVD, but it does give you the following information:
(The information is the table up there)
a. What is the slope of the line containing the points?
b. What does the slope represent in this problem?
c. What is the y‐intercept of the line that contains the points?
d. What does the y‐intercept represent in this context?
e. What is the equation that represents the line?
Thank you.
Answers
Answer:
Answer:
a. 9
b. The slope represents the cost for every new DVD
c. 6
d. The song represents the base price, or the price that it would cost for 0 DVDs
e. y = 9x + 6
Explanation:
I made a graph on a piece of graph paper and these were the answer I got.
The church's goal for the fundraiser was $18,000. They exceeded their goal by 8%. How much money did they raise?
Answers
Answer:
Step-by-step explanation:
18000(1+8/100)
18000(108)/100
19440
2x2– 21x = 11 what would the x be
Answers
Answer:
x = -1/3
Step-by-step explanation: