MATHEMATICS HIGH SCHOOL

–81, 108, –144, 192, ...Which formula can be used to describe the sequence?
A.f(x) = –81(4/3)^x-1
B. f(x) = –81(-3/4)^x-1
C. f(x) = –81(-4/3)^x-1
D. f(x) = –81(3/4)^x-1

Answers

Answer 1
Answer: r = 108/-81 = -144/108 =192/-144 = -4/3
This is a geometric sequence with a common ratio (r) = -4/3
The nth term of a geometric sequence is given by tn = ar^(n-1) where a is the 1st term.
Therefore, the formular for the sequence is f(x) = -81(-4/3)^(x-1)
Answer: C [f(x) = -81(-4/3)^(x-1)]
Answer 2
Answer:

Answer: C. f(x) = -81(-4/3)^(x-1)

This is just the short answer for all of you that are working on edge.nuity and don't have the time or need for a long explanation. I just took the unit test and this was correct, I hope this helped someone out there :3

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What is fx over gx when fx is -2x^3+x^2+16x-15 and gx is x + 3

Answers

If f(x)=-2x³+x²+16x-15 and g(x)=x+3, we can substitute the polynomial in for f(x) and the binomial for g(x) like so:
(2 x^(3)+ x^(2)+16x-15 )/(x+3)

The next step is to factor the numerator by grouping in the hopes that something will cancel!
((2 x^(3)+ x^(2)) +(16x-15) )/(x+3) \n ( x^(2) (2x+1)+16x-15)/(x+3) 

Unfortunately, because we can't factor anything out of the second grouped pair, that means there's no simplifying possible! So... 
(f(x))/(g(x)) = (2 x^(3)+ x^(2) +16x-15 )/(x+3)

Hope this helps!

Your bank balance is $102.35 and you've just made purchases for $20, $33.33, and $52.80. You then make deposits of $25 and $24.75. What's your new balance?

Answers

Answer:

The new balance is $45.97 .

Step-by-step explanation:

As given

Your bank balance is $102.35 and you've just made purchases for $20, $33.33, and $52.80.

Bank balance after the purchase = $102.35 - $20 -$33.33 - $52.80

                                                       = $102.35 - $ 106.13

                                                       = - $3.78

As given

You then make deposits of $25 and $24.75.

Total deposit money = $25 + $24.75

                                  = $49.75

Thus

New balance = Bank balance after the purchase + Total deposit money

                      = - $3.78 + $49.75

                      = $ 45.97

Therefore the new balance is $45.97 .
$102.35 - $20 = $82.35
$82.35 - $33.33 = $49.02
$49.02 - $52.80 = $-3.78
$-3.78 + $25 = $21.22
$21.22 + $24.74 = $45.97
so $45.97 is your answer

What is 1/10 + 1/4 + 1/5+2/15? A.41/60 B 6/41 C 11/12 D 1/7

Answers

an easy common denominator is 60 bc 15*4=60 and everything else can equal 60 too so: 
6/60+ 15/60+ 12/60+ 8/60 = 41/60 (you only add the numerator numbers) usually you would reduce the end result too but 41 is a prime number so you cant 
1/10 + 1/4 + 1/5 + 2/15.

LCM of 10, 4, 5, and 15 = 60

1/10 = 6/60        1/4 = 15/60      1/5 = 12/60    2/15 = 8/60

= 6/60 + 15/60 + 12/60 + 4/60 = (6 + 15 + 12 + 8) / 60 = 41/60

Option A.

ivan saves 20 percent of his monthly paycheck for music equipment. he earned $335 last month. how mush money did ivan save for music equimpet

Answers

multiply\ 20\%\ times\ money\ that\ he\ earned\ last\ month\n\n20\%*335=0,2*335=67\n\nHe\ saved\ 67\$.

We found that Juan’s investment account can be modeled by the function, c(x) = 7x2 - 6x + 5, in thousands of dollars. What was Juan’s initial investment?$5
$10
$5,000
$10,000

Answers

Answer:

Option (a) is correct.

The Juan’s initial investment is $ 5

Step-by-step explanation:

Given : Juan’s investment account can be modeled by the function,c(x)=7x^2-6x+5, in thousands of dollars.                        

We have to find the  Juan’s initial investment.

Since,  Juan’s investment is modeled by function

c(x)=7x^2-6x+5

Since initial investment is when he start the investment and is given by when

x = 0

Thus,  c(0)=7(0)^2-6(0)+5

Simplify , we get,

c(0) = 5

Thus, the Juan’s initial investment is $ 5
initial investment was when x=0, when no change had occured

c(0)=7(0)^2-6(0)+5
c(0)=5

this is in thousands
5*1000=5000
answer is $5000 is initial

If the hikers want to share the fruit evenly , how many Leicester should each person receive?

Answers

an even amount each 
EXAMLEE;there are 4 potatoes and 2 people they want to split it evenly so 4potatoes/2people
4 divided by 2
they both get 2 potatoes.
stupid example but hope it helps
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