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3 years ago

SOMEONE PLEASEEEEEEE HELP ME ASAP!!!!!!!!!!

Mathematics

1 answer:

PtichkaEL [24]3 years ago

8 0

Answer
8.05 x 10^3
4 x 10^-16
3.03 x 10^-1
5 x 10^10

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What is the final answer?

MakcuM [25]

<h3>Answer: 42</h3>

Explanation:

We have y = -0.9x^2 + 76x - 250 which is in the form y = ax^2+bx+c

where,

a = -0.9
b = 76
c = -250

The vertex (h,k) is when the profit is maxed out.

h = -b/(2a)

h = -76/(2(-0.9))

h = 42.222 approximately

Let's plug in x values around x = 42

Try x = 41

y = -0.9x^2 + 76x - 250

y = -0.9(41)^2 + 76(41) - 250

y = 1353.10

Now try x = 42

y = -0.9x^2 + 76x - 250

y = -0.9(42)^2 + 76(42) - 250

y = 1354.4

Now try x = 43

y = -0.9x^2 + 76x - 250

y = -0.9(43)^2 + 76(43) - 250

y = 1353.9

We see that the largest profit happens when x = 42.

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2 years ago

Jacket is 125.000 tax is 5.5%

kykrilka [37]

Answer:

$131.88

hope this helps

Step-by-step explanation:

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4 years ago

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What is the greatest common factor of 64 and 72

erastova [34]

8 is the gcf of 64 and 72

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3 years ago

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If someone treat at geometry has anyntime could you come answer my question

ki77a [65]

I am pretty good at any math and I love a good challenge. What is your question because I'd be glad to help!!!

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4 years ago

Tobias sent a chain letter to his friends, asking them to forward the letter to more friends. The number of people who receive t

malfutka [58]

Answer:

$P(t)=37\times (4)^{(t/9.1)}$

Explanation:

The number of emails is multiplied by <em>4</em> every <em>9.1 weeks.</em>

Thus, since <em>Tobias initially sent the chain letter to 37 friends</em>, the number of letters will grow as per this geometric series:

Start: 37 letters

In 9.1 weeks: 37 × 4

In 2 × 9.1 weeks: 37 × (4)²

In 3 × 9.1 weeks: 37 × (4)³

As you see, the exponent is the number of weeks divided by 9.1

Thus, if your variable is the number of weeks, t, then the exponent is t/9.1

And the exponential function, P(t) will be:

$P(t)=37\times (4)^{(t/9.1)}$

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3 years ago