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3 years ago

State the domain of the function y=3/x

1 answer:

8 0

$Notice \ the \ equation \ contains \ x \ in \ the \ denominator.$

$Since \ any \ denominator \ must \ not \ equal \ zero,$

$our \ domain \ is \ restricted \ to \$ x<span>≠0</span>

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(1/16)^(x+2) = (64)^(x-3)

Sergeu [11.5K]

X=1__________________

6 0

3 years ago

The point-slope form of the equation of the line that passes through (-4, -3) and (12, 1) is y-1 = 1/4(x – 12). What is

HACTEHA [7]

I think it’s y = 1/4x + 4

3 0

3 years ago

In an agricultural study, the average amount of corn yield is normally distributed with a mean of 185.2 bushels of corn per acre

RideAnS [48]

Answer: B. 461 acres

Step-by-step explanation:

Given : In an agricultural study, the average amount of corn yield is normally distributed with a mean of 185.2 bushels of corn per acre, with a standard deviation of 23.5 bushels of corn.

i.e. $\mu=185.2\ \ , \ \sigma=23.5$

Let x denotes the amount of corn yield.

Now, the probability that the amount of corn yield is more than 190 bushels of corn per acre.

$P(x>190)=P(\dfrac{x-\mu}{\sigma}>\dfrac{190-185.2}{23.5})$

[Formula : $z=\dfrac{x-\mu}{\sigma}$ ]

$=P(z>0.2043)=1-P(z$ [∵ P(Z>z)=1-P(Z<z)]

$1-0.5809405$ [using z-value calculator or table]

$=0.4190595$

Now, If a study included 1100 acres then the expected number to yield more than 190 bushels of corn per acre :-

$0.4190595\times1100=460.96545\approx461\text{ acres}$

hence, the correct answer is B. 461 acres .

8 0

3 years ago

How would you prove that x=5 is true to the equation of 3x=10-5?

DENIUS [597]

Answer:

so x = 5 is not true statement

Step-by-step explanation:

well to prove x = 5 you need to get get alone or solve for x

3x = 10-5 --> 3x = 5

now you need to get x alone do this by dividing 3 by both sides

3x = 5 --> x = 5/3

x = 1.6

8 0

2 years ago

At one farmer's market, bananas cost $0.80 per pound. At another farmer's market, bananas are sold in 5-pound bags for $4.50 per

kozerog [31]

Divide the second amount by five to find out how much it costs at the second farmers market to get 1 pound of bananas.
5/5=1
4.50/5=.9
.9>.8 so the first farmers market had a better deal.

3 0

3 years ago

Read 2 more answers