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3 years ago

Can someone help me with question 48 please

Mathematics

1 answer:

vova2212 [387]3 years ago

8 0

Answer:

Step-by-step explanation:

48.

The values are greater than 2 and less than OR equal to 6. Thus there will be an open circle on x = 2 and a filled circle on x = 6. Also there will be a dark line between these 2 points. It's choice A.

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Average after 8 test is 91%. if he gets a 78% on his 9th test what will be the new acerage

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3 years ago

Write an equation to model growth or decay in the following scenario. A stock is declining at a rate of 25% of its value every 2

yawa3891 [41]

The exponential function that models this situation is:

$y(t) = 225(0.75)^{\frac{t}{2}}$

------------------------------------------

A decaying exponential function has the following format:

$y(t) = y(0)(1 - r)^t$

In which:

y(0) is the initial value.
r is the decay rate, as a decimal.

In this problem:

The stock started at $225, thus $y(0) = 225$ .
Declines at a rate of 25% every 2 weeks, thus $r = 0.25, t = \frac{t}{2}$

The equation is:

$y(t) = y(0)(1 - r)^t$

$y(t) = 225(1 - 0.25)^{\frac{t}{2}}$

$y(t) = 225(0.75)^{\frac{t}{2}}$

A similar problem is given at brainly.com/question/24282972

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Answer:

Your answer would be C

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(\) QueTooOfficial (/)

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