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Vlad [161]
2 years ago
8

Solve (4q+3)(q+2)=0. q= , q=

Mathematics
1 answer:
hram777 [196]2 years ago
5 0
Either factor in paren can be equal 0

so either q=-2

or q=-3/4
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Patrick is collecting data on shoe size. What type of data is this?
OleMash [197]
B discrete quantitative because shoe size represent a quantity
3 0
3 years ago
John has $5 in his bank account when he gets a job. He begins making $109 a day. A student found that the equation that represen
ddd [48]

Answer:

the student answer is incorrect

Correct answer: y = 109x + 5

Step-by-step explanation:

He STARTS with $5, which means it says aside. Since he REPEATEDLY recieves $109 EVERY day, it is as 109x because you don't know how much days there are.  So the correct equation is y = 109x + 5.

Hope this helps!

Have a nice day!

4 0
2 years ago
Find a ratio equivalent to<br> 2/2 <br> X <br> 3/6<br> whose second quantity is 1.
olchik [2.2K]

Answer:

2/2 has a ratio equivalent to 1

3/6 has a ratio equivalent to 0.5

Step-by-step explanation:

4 0
2 years ago
The Statistical Abstract of the United States published by the U.S. Census Bureau reports that the average annual consumption of
Karo-lina-s [1.5K]

Answer:

a) P(\bar X

b)P(98

c) P(\bar X

d) P(93

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".  

Part a

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

X \sim N(99.9,30)  

Where \mu=99.9 and \sigma=30

We select a random sample of n=36. And from the central limit theorem we know that the distribution for the sample is given by:

\bar X \sim N(\mu =99.9 , \frac{\sigma}{\sqrt{n}}= \frac{30}{\sqrt{38}}=4.87)

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

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

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

P(\bar X

=P(Z

Part b

For this case we want this probability:

P(98

=P(\frac{98-99.9}{\frac{30}{\sqrt{38}}}

And we can find this probability on this way:

P(-0.39

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-0.39

Part c

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

P(\bar X

P(\bar X

Part d

For this case we want this probability:

P(93

=P(\frac{93-99.9}{\frac{30}{\sqrt{38}}}

And we can find this probability on this way:

P(-1.42

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-1.42

3 0
3 years ago
coles buys a new laptop for 335 he makes a down payment of 50$ and pays the rest in 6 equal monthly payments p what equation rep
Dmitry_Shevchenko [17]

Answer:

335 = 50 + 6p

Step-by-step explanation:

50 +6p=335

subtract from both sides

-50      -50

6p=285

/6p   /6p

divide both sides

p=47.5

3 0
3 years ago
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