geometric sequence or whatever
How do I do this? Please give subtle explanation too. I don't really understand at all. If I understand this question, I'll understand the rest.
(it's 54 points too lol)
Answers
Step-by-step explanation:
An = -2 * An-1
What this means is that you multiply -2 to the term to get the next term.
Since our 1st term (A1) is -2, we have:
A2 = -2 * A1 = -2 * (-2) = 4,
A3 = -2 * A2 = -2 * (4) = -8,
A4 = -2 * A3 = -2 * (-8) = 16,
A5 = -2 * A4 = -2 * (16) = -32,
A6 = -2 * A5 = -2 * (-32) = 64.
Hence our first 6 terms in the GP are
-2, 4, -8, 16, -32 and 64.
Related Questions
I need help with 16, 17, 18, 19, 20 & 21 please.
Answers
Answer:
Step-by-step explanation:
Number 16. You should put yes
Number 17 put no
number 18 is yes
Number 19 is yes
number 20 is no
number 20 is no
Can anyone help me this was literally due over a week ago
Answers
Answer:
You multiply 5 by 1/5 to get 1. So with 2x, you multiply by 1/(2x) to get 1. That's about all you know, since we only know that x is positive.
Step-by-step explanation:
Answer:
Step-by-step explanation:
The task is a little not clear .... When I answered on this question earlier, I actually found multiplicative inverse of the product of 1/5 and (2x - 1/5)
But now I can see the question might be to find of The product of multiplicative inverse of 1/5 and (2x - 1/5)
Jackie deposited $315 into a bank account that earned 1.5% simple interest each year. No money was deposited into or withdrawn from the account.
How much money was in the account after 3 years?
Answers
Answer:
$329.18
Step-by-step explanation:
315 + 14.18 = $329.18
Colin buys a tv for £690. It depreciates at a rate of 2% per year. How much will it be worth in 6 years? Give your answer to the nearest penny where appropriate.
Answers
Answer: £611.23
Step-by-step explanation:
The tv is depreciating at a rate of 2% per year. At this rate, the value after 6 years can be acquired using the future value formula:
= Current price * (1 + growth rate) ^ no. of years
Growth rate is negative because it is depreciating:
= 690 * (1 - 2%)⁶
= 611.23124279616
= £611.23
LM is the diameter of OP. N L *not drawn to scale IfmXLMN = 48° what is mZNLM? A. 24° B. 42° C. 48° D. 66° E. 84
Answers
Answer: B
Step-by-step explanation:
If the other one is 48 then this one must be 42 i think
9 + 2n = n solve for n
Answers
State the domain restriction(s) in interval notation of \displaystyle f\left(g\left(x\right)\right)f(g(x)) given: \displaystyle f\left(x\right)=\sqrt{3x-2}f(x)= 3x−2 and \displaystyle g\left(x\right)=x-7g(x)=x−7
Answers
Answer:
The interval notation for the domain is [tex][\frac{23}{3},\infty ][/tex].
Step-by-step explanation:
Consider the provided information.
It is given that [tex]\:f\left(x\right)=\sqrt{3x-2},\:\text{ and }\:g\left(x\right)=x-7[/tex]
We need to find the value of [tex]f\left(g\left(x\right)\right)[/tex].
Put the value of g(x) in [tex]f\left(g\left(x\right)\right)[/tex].
[tex]f\left(g\left(x\right)\right)=f(x-7)[/tex] ....(1)
Now, put x=x-7 in [tex]\:f\left(x\right)=\sqrt{3x-2}[/tex]
[tex]\:f\left(x-7\right)= \sqrt{3(x-7)-2}[/tex]
[tex]\:f\left(x-7\right)= \sqrt{3x-21-2}[/tex]
[tex]\:f\left(x-7\right)= \sqrt{3x-23}[/tex]
From equation 1.
[tex]f\left(g\left(x\right)\right)=\:f\left(x-7\right)= \sqrt{3x-23}[/tex]
The domain of the function is the set of input values for which a function is defined.
Here, the value of [tex]3x-23[/tex] should be greater or equal to 0 as the square root of a negative number is not real.
Domain= [tex]3x-23\geq0[/tex]
[tex]x\geq\frac{23}{3}[/tex]
The value of x is all real number greater than [tex]\frac{23}{3}[/tex].
Hence, the interval notation for the domain is [tex][\frac{23}{3},\infty ][/tex].
Some eighth-grade students want to raise at least $300 for a field trip by selling popcorn and fruit bars. The chart below shows the amount of profit they will make on each sale. If they sell exactly 500 fruit bars, how many boxes of popcorn will they need to sell to make a total of $300? 30 cents fruit bars. 60 cents box of popcorn
Answers
popcorn = 60 cts
fruitbars = 30 cts
.
they sold 500 fruit bars = 500 x 0.30 = 150
.
(300 - 150)/0.6 = 150/0.6 = 250 this is how many popcorn they need to sell
The total number of popcorn boxes is given by the equation
A = 250 boxes
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the number of boxes of popcorn be A
Now , the equation will be
Let the cost of one fruit bar = $ 0.30
Let the cost of one popcorn box = $ 0.60
The amount to be raised = $ 300
The number of fruit bars sold = 500
So , the cost of 500 fruit bars = 500 x cost of one fruit bar
Substituting the values in the equation , we get
The cost of 500 fruit bars = 500 x 0.30
The cost of 500 fruit bars = $ 150
Now , the remaining amount to be raised = 300 - 150
The remaining amount to be raised = $ 150
The number of boxes of popcorn A = remaining amount to be raised / cost of one popcorn box
Substituting the values in the equation , we get
The number of boxes of popcorn A = 150 / 0.60
The number of boxes of popcorn A = 250 boxes
Therefore , the value of A is 250 boxes
Hence , the number of boxes is 250
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StartFraction one-half left-parenthesis x plus 12 right-parenthesis equals 4 x minus 1.(x + 12) = 4x – 1
zero
one
two
infinitely many
Answers
Answer:
1/2.(x+12)=4x-1
x+12=2(4x-1)
x+12=8x-2
Group like terms
12+2=8x-x
14=7x
Divide both sides by 7
x=2
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
SOMEONE HELP NOW IM ON A TIMED TEST
Margo's hybrid car uses 56 of a gallon of gas for every mile that Margo drives. Margo
drove her car 200 miles to visit her aunt. When she left her house the car's gas tank
was full. When she arrived at her aunt's house the gas tank contained 8 gallons of gas.
She did not stop for gas along the way.
Which equation represents the number of gallons of gas, y, in the car's tank after
Margo drives the car x miles?
Answers
Answer:
It is C
Step-by-step explanation:
Show your work on how you got the awnser SHOW work
Answers
Answer:
1 3/8
Step-by-step explanation:
5/8+3×2/4×2
5/8+6/8
5+6/8
11/8
1 3/8
______________________________
1.) Find the LCF of 8 and 4:[tex]8,4=8[/tex]- We do this because in order to add the fractions together, they have to have the same denominator. In this case you find the LCF, (Least Common Factor) of 8 and that turns into the denominator for both.
2.) Convert the fractions to have the same denominator: [tex]\frac{5}{8}=\frac{5}{8}[/tex][tex]\frac{3}{4}=\frac{6}{8}[/tex]- [tex]\frac{5}{8}[/tex] stays the same, but [tex]\frac{3}{4}[/tex] changes to [tex]\frac{6}{8}[/tex] because the LCF if 8, and to get to 8 we had to multiply 4 by 2. So since we multiplied the denominator, you must do the same to the numerator, hence why we went from 3 to 6.
3.) Add the numerators: [tex]5+6=11[/tex]- Since [tex]\frac{5}{8}[/tex] and [tex]\frac{6}{8}[/tex] have the same denominator, all you have to do is add the numerator.
______________________________
Daniela facing a 12 ft tall statue that is 15 ft away. She can see the reflection of the top of the statue in a puddle on the ground 5 ft in front of her. How tall is Daniela?
Answers
Answer:
36 ft
Step-by-step explanation:
Daniela facing a 12 ft tall statue that is 15 ft away. She can see the reflection of the top of the statue in a puddle on the ground 5 ft in front of her. How tall is Daniela?
Hence, this is calculated as:
5ft/15ft = 12 ft/Daniela's height
Cross Multiply
5ft × Daniela's height = 15ft × 12ft
Daniela's height = 15ft × 12 ft/5ft
= 36ft
Therefore, Daniela's height = 36 ft
Pls help I’ll give brainliest
Answers
Answer:
B.
yeah. thats the answer.
The length of a rectangle is 6 ft longer than its width.
If the perimeter of the rectangle is 68 ft, find its length and width.
Answers
Answer:
the length is 23 ft and the width is 11 ft
Step-by-step explanation:
68/4 = 17
17 17 17 17
11 11 23 23
criangle has sides 45, 4x and 2x – 4. What is the possible range of x?
Answers
Answer:
[tex]\frac{49}{6} <x<\frac{41}{2}[/tex]
Step-by-step explanation:
The possible ranges of x are listed above. Hope this helps! :)
?????????????????????????????
Answers
Step-by-step explanation:
[tex] \underline{ \underline{ \text{Given}}} : [/tex]
∠ABC = 60° , ∠BAC = 60° & ∠ACD = x °[tex] \underline{ \underline{ \text{To \: find}}} : [/tex]
Value of x[tex] \underline{ \sf{∠ACD= ∠ABC\: + \: ∠BAC}}[/tex] { Exterior angle of a triangle is equal to sum of the two non - adjacent interior angles }
[tex] \sf{x \degree = 60 \degree + 60 \degree}[/tex]
[tex] \sf{x \degree = 120 \degree}[/tex]
[tex] \blue{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \underline{ \tt x = 120 \degree}}}}}}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
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wilbur has sold 100, 42,87, and 66 appliances in the last four months, respectively. How many appliances will he need to sell this month to maintain an average of at least 72 sales per month?
Answers
Answer:
59
Step-by-step explanation:
1) so you start with the mean being 72x5=360
2)100+42+87+66=295
3) 360-295=65
(you get the 5 from the amount of numbers there are) P.S sorry if I'm wrong or this doesn't help
PLS help me ill mark u brainliest
Answers
Answer:
They are adjacent anglesThey are a linear pairThey are supplementary anglesTheir sum is [tex]180^{\circ}$[/tex]Step-by-step explanation:
Since [tex]\angle 1[/tex] and [tex]\angle 4[/tex] are on one side of a line, their sum is [tex]180^{\circ}[/tex], meaning they are supplementary. This also defines them as a linear pair and both angles are adjacent to one another. None of the other answer choices are implied in the figure, thus:
They are adjacent anglesThey are a linear pairThey are supplementary anglesTheir sum is [tex]180^{\circ}$[/tex]Which inequality is true
Answers
Answer:
number 2 I'm pretty sure but wait for another answer jsut to double check
Answer:
I think the 2nd one, -2¾ < -1½, as for -1½ is bigger than -2¾.
The narrator of Fever 1793 helps readers imagine Philadelphia summers by describing
1.church bells tolling.
2.mosquitoes, blowflies, and hornets buzzing.
3.visiting the newspaper office.
4.Eliza leaving for the Free African Society meeting.
Answers
Answer:bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
Step-by-step explanation:
The narrator of Fever 1793 helps compendiums imagine Philadelphia summers by describing about mosquitoes, blowflies, and hornets buzzing.
What's Narration?This refers to the liar of an event to talk about an event in the order of circumstance.
Given
The opening judgment of Fever 1793," From the moment Colette Ogilvie passed out, Philadelphia's church bells chimed continuous.
The narrator of Fever 1793 makes it easy for readers to picture her upbringing by expressing her love for the nation, describing how it felt to see her words printed, confessing to counting on her fingers, and describing how it felt to voice her anger with front-of-the-house service.
On the road corners, shots were fired, and a cannon was fired in the public forecourt to clear the air. In addition to that, hornets, blowflies, and mosquitoes swarmed about us continuous.
The noise was annoying." Illustration demonstrates how mosquitoes, blowflies, and hornets agonized Philadelphians with unheroic fever in 1793.
Learn more about Narration here:
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Helena has saved $595 to put toward snowboarding equipment and lift tickets at the hill. Each lift ticket costs $35. If she wants to have more than $420 of her savings left to spend on equipment, which inequality represents the number of lift tickets she can buy? A. X<5 B. X<4 (there is a line _ underneath the >) C. X>7 D. X>7 (there is a line _ underneath the >)
Answers
Answer:
[tex]x < 5[/tex]
Step-by-step explanation:
Given
[tex]Savings = \$595[/tex]
Rate of Lifting Ticket = $35 per ticket
Expected Amount = More than $420
Required
Determine the number of tickets she can buy
If the cost of lifting 1 ticket is 35, then the cost of x tickets is 35x.
Her spendings is then calculated as:
Total = Savings - Cost of lifting tickets
[tex]Total = 595 - 35x[/tex]
From the question, we understand that she wants to have more than 420 left.
This is represented as:
[tex]595 - 35x > 420[/tex]
Collect Like Terms
[tex]- 35x > 420 - 595[/tex]
[tex]- 35x > -175[/tex]
Divide through by -35
[tex]x < \frac{-175}{-35}[/tex]
[tex]x < 5[/tex]
Can someone help I don’t know
Answers
Answer:
yes i will help you
Step-by-step explanation:what are you struggling with
Answer:
A
Step-by-step explanation:
Given similar figures with ratio of sides = a : b , then
ratio of areas = a² : b²
ratio of sides = 15 ; 18 = 5 ; 6
The ratio of perimeters is equal to the ratio of sides, so
ratio of perimeters = 5 : 6
ratio of areas = 5² : 6² = 25 : 36
Pls help due ASAP
Bsbgsgdgdh
Answers
Answer:
the answer is b 10<m<14 your welcome have a great day hope this helps
Answer:
The answer is A . 4<m<24
Step-by-step explanation:
m+10>14
m>4
14+10>m
m<24
How do you find the system of equations for a graph?
Answers
Answer:
The solution of such a system is the ordered pair that is a solution to both equations. To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be in the point where the two lines intersect.
Step-by-step explanation:
Answer:
The solution of such a system is the ordered pair that is a solution to both equations. To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be in the point where the two lines intersect. please give brainiest
Step-by-step explanation:
You spin each spinner. How many outcomes are possible?
S
R
W
Submit
Answers
Answer:10
Step-by-step explanation:
What is the slope of a line perpendicular to the line whose equation is x−2y=12.
Answers
Answer:
-2/x
Step-by-step explanation:
simplified is y = -x/2 - 6
Perpendicular slopes are just reciprocals of the original slope, so just flipp the original slope around to be the complete opposite.
Example if slope= -2, the reciprocal= -1/2
Just flip the numerator with the denominator for perpendicular slope
Best buy is having a 20 percent off deal on Tv's. If the tv cost 415 dollars in total, how much would you pay with the discount?
Answers
Explanation:
You have to change the percent into a decimal so 20% becomes 0.20
415 x 0.20 = 83
20% of 415 is 83
415 - 83 = 332
if x is 18 when y is 6 find y when x is 21
Answers
Answer:
y = 7, when x = 21
Step-by-step explanation:
Since 6 is 1/3 of 18 we could use that to find y
1/3 x 21 = 7
You need to move a figure to the right 3 units and down 4 units. What is the coordiante notation for this rule?
Answers
Answer:
4,3
Step-by-step explanation:
Please help i am not good in this type of math at all!
Answers
Answer:
*2.5
Step-by-step explanation:
15*2.5=37.5
7*2.5=17.5