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Jet001 [13]
3 years ago
8

The following double line graph represents the enrollment of students at Jefferson Middle School for 2006 through 2009. What was

the difference between seventh and eighth grade enrollment in 2008?

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
5 0

Answer:

20

Step-by-step explanation:

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6) (after 2.3) Consider the infinite system of linear equations in two variables given by ax + by = 0 where (a, b) moves along t
Paraphin [41]

Answer:

Step-by-step explanation:

Given infinite system of linear equations is ax + by = 0

when (a,b) moves along unit circle in plane.

a) system having unique system (0, 0)

Since two of equation in thus system will be

1.x+0.y=0\\x=0

and

0.x+1.y=0\\y=0

It is clear that x = 0, y= 0 is the only solution

b) Linear independent solution in this system gives some set of solutions

1.x+0.y=0\\\x=0

and

0.x+1.y=0\\y=0

Vector form is

\left[\begin{array}{ccc}1&0\\0&1\end{array}\right] =I

c) for this equation if add 0x +0y = 0 to system , Nothing will change

Because [0,0] satisfies that equation

d) If one of the equation is ax + by = 0.00001

where 0.00001 is small positive number

so, the system will be inconsistent

Therefore, the system will have no solution.

6 0
3 years ago
A laptop has a listed price of $899.98 before tax. If the sales tax rate is 7.25%, find the total cost of the laptop with sales
Tems11 [23]

Answer:

$965.23

Step-by-step explanation:

899.98 x .0725 = 65.25

899.98 + 65.25 = 965.23

- Hope this helps! If you need a further explanation please let me know.

3 0
3 years ago
What is the answers
postnew [5]
2,4,6,8,10,0,0,0,0,0,1,4,9,16,25,1,2,3,4,5
4 0
3 years ago
Read 2 more answers
Which expression cannot be used to calculate the sale price of a fish tank that was originally at priced d dollars and is on sal
Drupady [299]
Where S is sales price,
S = .75d

You said which expression CANNOT be used, but I assume you mean can. Let me know if you didn’t.
3 0
3 years ago
The price of an item costs $13 to make. It is marked up $6.50 to sell. What is the percent marked-up
Whitepunk [10]

(1 + x) (13) = 13+6.5

13x + 13 = 19.5

13x = 6.5

x = 0.5

The item was marked up by 50%

4 0
3 years ago
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