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Fed [463]
3 years ago
8

Can you explain $2000-$1433

Mathematics
2 answers:
timofeeve [1]3 years ago
5 0
The answer is $567 because $1433 subtracted from $2000 equals $567
Sophie [7]3 years ago
4 0
The answer would be $567
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Find a recursive formula for the sequence:<br><br> 1, -1, -7, -25
Mumz [18]
<h3>Answer:</h3>

a_n=3a_{n-1}-4

<h3>Step-by-step explanation:</h3>

<em>Try the answers</em>

You can try the answers to see what works. You can expect all of the choices to match the first two terms, so try some farther down. Let's see if we can get -25 from -7.

a) 3*(-7) -4 = -21 -4 = -25 . . . . this one works

b) -7 -2 = -9 . . . . ≠ -25

c) -3(-7) +2 = 21 +2 = 23 . . . . ≠ -25

d) -2(-7) +1 = 14 +1 = 15 . . . . ≠ -25

The formula that works is the first one.

_____

<em>Derive it</em>

All these formulas depend on the previous term only, so we can write equations that show the required relationships. Let the unknown coefficients in our recursion formula be p and q, as in ...

a_n=p\cdot a_{n-1}+q

Then, to get the second term from the first, we have

... 1·p +q = -1

And to get the third term from the second, we have

... -1·p +q = -7

Subtracting the second equation from the first gives ...

... 2p = 6

... p = 3 . . . . . . . this is sufficient to identify the first answer as correct

We can find q from the first equation.

... q = -1 -p = -1 -3 = -4

So, our recursion relation is ...

a_n=3a_{n-1}-4

6 0
3 years ago
5 x 3 x 2 +3/0 -45/3+1 =
Norma-Jean [14]

5 \times 3 \times 2 +  \frac{3}{0}  -  \frac{45}{3}  + 1 =  \\  \\  =  \frac{3}{0} \\  \\ or \\  \\ 1. \: 30 +  \frac{3}{0}   -  \frac{45}{3}  + 1 \\ 2. \: 30 +  \infty  -  \frac{45}{3}  + 1 \\ 3. \: 30 +  \infty  - 15 + 1 \\ 4. \:  \infty

Yeah it's Impossible

4 0
3 years ago
Read 2 more answers
A taxi charges $7.50 plus $0.45 per mile.
poizon [28]
$7.50(2)=$15.00 (She takes the taxi twice, and its $7.50 each time she takes it)
$0.45(16)+$0.45(8)=$10.80 (Each mile is $0.45, she goes 16 miles on the way to work, and only 8 miles on the way home. Since she walks half way and  takes the taxi the other half. Half of 16 is 8)
$15.00+$10.80=$25.80
Alexis pays $25.00 per day for her taxi rides.
6 0
3 years ago
Company A: A 2-column table with 5 rows. The first column is labeled hours with entries 5, 12, 20, 29, 42. The second column is
Gnom [1K]

Answer:

86 & tends to increase

Step-by-step explanation:

Goodluck :)

3 0
2 years ago
Do you guys know which coordinates im supposed to graph on here?
nadezda [96]

Answer:

SOLVE FOR Y

graph y= 2x + 2

sp graph the points

(0,2) and then (1,4)

connect the points and extend the line.

Step-by-step explanation:

add 2x to both sides

-2x+y=2

+2x     +2x

y= 2+2x

reverse

y= 2x+2

3 0
3 years ago
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