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3 years ago

Help with number 16 (15 points!)

Mathematics

1 answer:

masha68 [24]3 years ago

6 0

Answer:

-5≥x≤-1

Step-by-step explanation:

comment if you would like an explanation for this.

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The number of fish in a pond triples every 7 years. By what percent does the population change each year? 0 17% decay O 117% gro

Ira Lisetskai [31]

Answer: O 17% growth it was a little bit confusing but this is the answer I came up with

Step-by-step explanation: hope it helps

7 0

3 years ago

If C(x) is the total cost incurred in producing x units of a certain commodity, then the average cost of producing x units of th

nataly862011 [7]

Answer:

x = 2000 cameras

Step-by-step explanation:

C(x) Total cost in producing x units

C- = C(x) /x Average cost of producing x units x > 0

Cannon Precision Instrument

C (x) Total monthly cost for producing x units of M1 cameras

is C(x) = 0.0025x² + 80x + 10000

Then average cost of producing x cameras M1 is

C-(x) = ( 0.0025x² + 80x + 10000) /x

C-(x) = 0.0025x + 80 + 10000/x

Taking derivatives on both sides of the equation

C-´(x) = 0.0025 - 10000/x²

Then

C-´(x) = 0

( 0.0025x² - 10000 ) / x² = 0

0.0025x² - 10000 = 0

x² = 10000 /0.0025 x² = 4000000

x = 2000 cameras

8 0

3 years ago

Round 101 to the nearest ten

Lesechka [4]

Is there a picture for the question

7 0

3 years ago

According to the last census (2010), the mean number of people per household in the United States is LaTeX: \mu = 2.58 Assume a

Veseljchak [2.6K]

Answer:

P(2.50 < Xbar < 2.66) = 0.046

Step-by-step explanation:

We are given that Population Mean, $\mu$ = 2.58 and Standard deviation, $\sigma$ = 0.75

Also, a random sample (n) of 110 households is taken.

Let Xbar = sample mean household size

The z score probability distribution for sample mean is give by;

Z = $\frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

So, probability that the sample mean household size is between 2.50 and 2.66 people = P(2.50 < Xbar < 2.66)

P(2.50 < Xbar < 2.66) = P(Xbar < 2.66) - P(Xbar $\leq$ 2.50)

P(Xbar < 2.66) = P( $\frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } }$ < $\frac{2.66-2.78}{\frac{0.75}{\sqrt{110} } }$ ) = P(Z < -1.68) = 1 - P(Z 1.68)

= 1 - 0.95352 = 0.04648

P(Xbar $\leq$ 2.50) = P( $\frac{Xbar-\mu}{\frac{\sigma}{\sqrt{n} } }$ $\leq$ $\frac{2.50-2.78}{\frac{0.75}{\sqrt{110} } }$ ) = P(Z $\leq$ -3.92) = 1 - P(Z < 3.92)

= 1 - 0.99996 = 0.00004

Therefore, P(2.50 < Xbar < 2.66) = 0.04648 - 0.00004 = 0.046

7 0

3 years ago

Help please will give brainlist <br><br> Find x+y

Leno4ka [110]

Answer:

Step-by-step explanation:

2y-5 and 95 are vertical angles so they are equal

$2y - 5 = 95$

$2y = 100$

$y = 50$

3x and 144 form a linear pair angle so

$3x + 144 = 180$

$3x = 36$

$x = 12$

x=12 and y=50 so

$12 + 50 = 62$

3 0

3 years ago

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