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2 years ago

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Mathematics

2 answers:

babunello [35]2 years ago

8 0

A+b = 5
b+c= 3 1/2
2 times 2 + 3 = 7
a times d =8
c+c = 1
(e)2 = 1/9

Nataly [62]2 years ago

3 0

Answer:

This the 2nd page

A+B=5

B+C=3 1/2

2A+B=7

AD=6

C+C=1

( $e^{2}$ )=2/3

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CAN SOMEONE PLEASE HELP ME ANSWER THIS

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Answer:

Step-by-step explanation:

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2 years ago

A concession stand at an athletic event is trying to determine how much to sell cola and iced tea for in order to maximize reven

Cerrena [4.2K]

Solution :

Demand for cola : 100 – 34x + 5y

Demand for cola : 50 + 3x – 16y

Therefore, total revenue :

x(100 – 34x + 5y) + y(50 + 3x – 16y)

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4 x (i) ⇒ 272x - 32y = 400

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2 years ago

Im so lost, please help me asap

almond37 [142]

Answer:

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2 years ago

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Answer:

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Where $\mu=114.8$ and $\sigma=13.1$

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$P(X>140)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

If we apply this formula to our probability we got this:

And we can find this probability using the complement rule:

$P(z>1.924)=1-P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

$X \sim N(114.8,13.1)$

Where $\mu=114.8$ and $\sigma=13.1$

We are interested on this probability

$P(X>140)$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

$z=\frac{x-\mu}{\sigma}$

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$P(z>1.924)=1-P(z$

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ss7ja [257]

Answer:

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Step-by-step explanation:

x/7<-3

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