3 years ago

Is the function y = -1.4(0.75)x is an example of exponential growth or decay? Why?

Mathematics

1 answer:

swat323 years ago

8 0

The best answer is a decay

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In town 35% of 15 000 voters did not cast vote in election How many people cast their votes?

natita [175]

Let p = number of people that cast their vote.

p = 0.35(15, 000)

p = 5,250

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3 years ago

A poll agency reports that 75% of teenagers aged 12-17 own smartphones. A random sample of 234 teenagers is drawn. Round your an

GalinKa [24]

Answer:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

$X \sim Binom(n=234, p=0.75)$

And the mean for this case would be:

$E(X) =np = 234*0.75= 175.5$

And the standard deviation would be given by:

$\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624$

Step-by-step explanation:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

$X \sim Binom(n=234, p=0.75)$

And the mean for this case would be:

$E(X) =np = 234*0.75= 175.5$

And the standard deviation would be given by:

$\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624$

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3 years ago

Trever brought candy to school. He gave 15 of his candies to his friends. If he is left with 45 candies, how many did he bring t

Serga [27]

Answer:

its 60

Step-by-step explanation:

45+15=60

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Solve for Y: y < 9

I don't know if you want me to solve for Y or not

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4 years ago

Plz chooses one more question because I already answered one

MrMuchimi

Answer:

C and E

sorry for the late answer

<h3>Hope it helps!</h3><h3>Hope it helps!:)</h3>

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