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Jobisdone [24]
3 years ago
7

Can you help me on a question four I would really appreciate it have a good day!

Mathematics
1 answer:
vovikov84 [41]3 years ago
8 0

Answer: D. Volcanic Gray

Step-by-step explanation:

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In the year 2000, the average cost of a computer could be modeled by the equation C = -5t2 + 750, where t is the number of years
elena55 [62]

Answer:

\Delta C=-5t^2-250

Step-by-step explanation:

Given:

The average cost of a computer in the year 2000 is given as:

C=-5t^2+750

The average cost of a computer in the year 2008 is given as:

C=-10t^2+500

Now, the difference in average cost between the years 2008 and 2000 can be calculated by subtracting the average cost in 2000 from the average cost in 2008.

Framing in equation form, we get:

Difference in average cost (ΔC) is given as:

\Delta C=C_{2008}-C_{2000}\\\\\Delta C= (-10t^2+500)-(-5t^2+750)\\\\\textrm{Distributing the megative sign inside the second polynomial, we get:}\\\\\Delta C=-10t^2+500+5t^2-750\\\\\textrm{Grouping like terms, we get}\\\\\Delta C=(-10t^2+5t^2)+(500-750)\\\\\Delta C=-5t^2-250

Therefore, the difference in the costs for a computer between 2008 and 2000 is \Delta C=-5t^2-250

7 0
4 years ago
Pls help meeeeeee need to know
jasenka [17]

Answer:69

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A cereal box that is shaped like a rectangular prism has a length of 5 centimeters, a width of 4 centimeters, and a height of 10
Nadusha1986 [10]

200 is the volume of the cereal box

7 0
3 years ago
Decide whether the pair of lines is parallel, perpendicular, or neither. 3x-6y=2 and 18x+9y=8
Ray Of Light [21]

Answer: perpendicular

Step-by-step explanation:

8 0
3 years ago
Tamara bought yarn for $39 and 2 pairs of knitting needles. Her total cost for the yarn and knitting needles was $69. Tamara wri
Sati [7]
If you see the below statements among the choices, then you can select these as the answers:
a.) 39 + 2k = 69
             2k = 69 - 39
          2k/2 = 30/2
               k = 15

b.) 39 + 2k = 69
 39 + 2(15) = 69
     39 + 30 = 69
             69 = 69
7 0
3 years ago
Read 2 more answers
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