Your dinner at a restaurant costs $13.65 after you use a coupon for a 25% discount. You leave a tip for $3.00.

Mathematics

1 answer:

slamgirl [31]3 years ago

3 0

Answer:

Step-by-step explanation:

cuz I said so also show me your cake

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Write the point-slope form of the equation for a line that passes through (6,-1) with a slope of 2

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Answer: y + 1 = 2(x-6)

Step-by-step explanation:

Point Slope Form is y-y₁=m(x-x₁), and all you have to so is substitute in the values that you were given. So, the slope is 2, so you substitute that value in for m. Then, you substitute 6 in for x₁ (because 6 is the x value of the coordinate you were given) and you substitute -1 for y₁ (and it becomes positive because two negatives make a positive)

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A culture is grown with a population of 45 million cells. The cell population is found to double every hour. What will the popul

Alexandra [31]

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Or you can use
$y=Ae^{kt}$
A is equal to 45 million
To find the rate, k, we can plug in:
$90million=45million*e^{k*1}
$
$2=e^{k}$
$k=ln(2)$
$y=4.5*10^{7}*e^{t *ln2}$
Knowing that t = 4
$y = 4.5*10^{7}*e^{ln(2)*4}
$
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