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notka56 [123]
2 years ago
15

6. The California Tiger Salamander is an endangered species, which decreases at the rate of 4.6% per year in a habitat that curr

ently has 60 of them. Write an exponential function and find how many California Tiger Salamanders will be left after 4 years.
7. Factor and solve the following equation 2x2 + x - 21 = 0.

8. Alvin throws the football to a receiver who jumps up to catch the ball. The height of the ball over time can be represented by the quadratic equation -4.9t2 + 7.5t + 1.8 = 2.1 . This equation is based on the acceleration of gravity -4.9 m/s2, the velocity of his pass is 7.5 m/s and releases the football at a height of 1.8 meters, and the height where the receiver catches the ball of 2.1 meters. Put the equation in standard form and then solve by using the quadratic equation.

9. Examine the graph of f(x) and the table that contains values of g(x). Which function has a greater rate of change over the interval [0,2]? Explain your answer.
Mathematics
1 answer:
kicyunya [14]2 years ago
7 0

\rule{2000pt}{1000000pt}

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Mr. McKay spent $2.60 for a box of crackers and then divided them evenly between the s students in his classroom, Write an expre
notka56 [123]

Answer:

You would go $2.60/s

Step-by-step explanation:

then when you have your total number of students you take the total cost and divide that by the number of students that you have to figure out the cost of crackers for each student

5 0
3 years ago
If I varies inversely with R and I = 0.25 when R = 18, which equation should be used to show this relationship?
pashok25 [27]
Inverse relationships are of the form xy=k or if you prefer  y=k/x so to find the constant we can say:

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So you could say: IR=4.5 or I=4.5/R
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3 years ago
The price of a silk scarf is $32. The sales tax is $1.92. What is the sales-tax rate?
aliya0001 [1]
Divide.
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The tax is roughly 16.67%
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1

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