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anygoal [31]
3 years ago
14

Mr Hughes is competing in the Mr. Legs campaign to raise money for the coral shores high school scholarship fund. On the first d

ay he collected $2. On the third day he collected $8 dollars. Let D represent each collection day and N represent the number of dollars collected on that day. Matt says claims the situation can be modeled by an exponential function. Emily disagrees and claims the number of dollars collected can be modeled by a linear function. Which statement is true about the number of dollars predicted to be collected on the 6th day based on the two models.
Mathematics
2 answers:
frosja888 [35]3 years ago
7 0

Answer:

B

Step-by-step explanation:

The answer is B i'm pretty sure

lakkis [162]3 years ago
4 0
<span>The number of dollars collected can be modelled by both a linear model and an exponential model. To calculate the number of dollars to be calculated on the 6th day based on a linear model, we recall that the formula for the equation of a line is given by (y - y1) / (x - x1) = (y2 - y1) / (x2 - x1), where (x1, y1) = (1, 2) and (x2, y2) = (3, 8) The equation of the line representing the model = (y - 2) / (x - 1) = (8 - 2) / (3 - 1) = 6 / 2 = 3 y - 2 = 3(x - 1) = 3x - 3 y = 3x - 3 + 2 = 3x - 1 Therefore, the amount of dollars to be collected on the 6th day based on the linear model is given by y = 3(6) - 1 = 18 - 1 = $17 To calculate the number of dollars to be calculated on the 6th day based on an exponential model, we recall that the formula for exponential growth is given by y = ar^(x-1), where y is the number of dollars collected and x represent each collection day and a is the amount collected on the first day = $2. 8 = 2r^(3 - 1) = 2r^2 r^2 = 8/2 = 4 r = sqrt(4) = 2 Therefore, the amount of dollars to be collected on the 6th day based on the exponential model is given by y = 2(2)^(5 - 1) = 2(2)^4 = 2(16) = $32</span>
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A trapezium of area 105 cm2 has parallel sides of length 5cm and 9 cm how far apart are the parallel sides
Tanzania [10]
For a trapezoid:
the area equals the product of half the sum of the two bases' length and the normal height between them

so that, we can write:
105= \frac{5+9}{2}*h\\~\\h=15~~cm

Hence <span>the parallel sides are 15 cm apart.


</span>

I hope that helps!



6 0
3 years ago
Pre Calc Question Help,
julsineya [31]

Answer:

Step-by-step explanation:

Domain is the set of all values of x where the function is defined. For this function the only limitation upon x exists when the denominator would equal zero, because division by zero is undefined. So the denominator 13-x cannot equal zero thus x cannot equal 13. Thus the domain is all real numbers except 13.

5 0
3 years ago
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Which of the following are the roots of 3x^2-10x+5
Yuliya22 [10]
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8 0
3 years ago
PLEASE PLEASE PLEASE PLEASE HELP MEEE PLEASE PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!
vlada-n [284]

Answer:

Step-by-step explanation:

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7 0
3 years ago
4 + 12 + 36 + … ; n = 15
andrew11 [14]
4 times 3=12
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I think you want us to find the sum of the geometric sequence to n=15

the sum is
S= \frac{a_1(1-r^{n})}{1-r}
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S= \frac{4(1-3^{15})}{1-3}
S= \frac{4(1-14348907)}{-2}
S=-2(-14348906)
S=28697812

it adds to 28697812
4 0
3 years ago
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