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3 years ago

During the past 7 weeks digo spent between 11 and 17 for much lunch each week

Mathematics

1 answer:

DiKsa [7]3 years ago

6 0

This is not a proper question. Try adding some more information so that it can be solved!

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Which describes the function over the interval given in the table?

Montano1993 [528]

Answer:

The Answer is D.

Step-by-step explanation:

To solve this question we should use the process of elimination.

We can clearly see that the function f(x) increases as x increases so we can rule out options A and C.

Now we have to decide between B and D.

So the format for a quadratic function is $f(x)=ax^2+bx+c$

The format for an exponential function is $f(x)=a*b^x$

So let's try exponential first:

at x = 0 we solve for a and b:

$10000 = a*b^0\\10000=a$

so we find b when x =5

$12201.9 =10000b^5\\b^5=\frac{12201.9}{10000} \\b^5=1.22019\\b=\sqrt[5]{1.22019} \\$

b = 1.04060

Then we evaluate the value as x=10

$14888.64=10000b^10\\b^10=14888.64/10000\\b^10=1.488864\\b=\sqrt[10]{1.488864} \\b=1.04060$

As can be seen from both cases b is the same. This is a key chareteristic of an exponential function. So the Answer is D.

6 0

3 years ago

a bottle contains 225 coins. 1/3 of the coins are £1 coins. 110 of the coins are 50p coins. the rest of the coins are 20p coins.

artcher [175]

225 divided by 0.50x9.20+100

7 0

4 years ago

A random sample of 100 cartons of eggs is selected from a grocery store, and it is discovered that 2% of the

Anettt [7]

Using the concepts of parameter and statistic, it is found that the correct option is:

2% is a statistic and 5% is a statistic.

<h3>Parameter and Statistic:</h3>

If the information is taken from a sample, it is called a statistic.

If the information is taken from a population, it is called a parameter.

In this problem, both percentages are taken from samples, hence both the 2% and the 5% represents statistics, and the first option is correct.

To learn more about the concepts of parameter and statistic, you can take a look at brainly.com/question/25959069

7 0

3 years ago

Given that x is a hypergeometric random variable with Nequals10, nequals4, and requals6, complete parts a through d. a. Compu

sergey [27]

Answer:

a. 0.114

b. 0.005

c. 0.381

d. 0.00

Step-by-step explanation:

If x follows a hypergeometric distribution, the probability that x is equal to k is calculated as:

$P(x=k)=\frac{(rCk)*((N-r)C(n-k))}{NCn}$

Where k≤r and n-k≤N-r, Additionally:

$aCb=\frac{a!}{b!(a-b)!}$

So, replacing N by 10, n by 4 and r by 6, we get:

$P(x=k)=\frac{6Ck*((10-6)C(4-k))}{10C4}=\frac{6Ck*(4C(4-k))}{10C4}$

Then, the probability that x is equal to 1, P(x=1) is:

$P(x=1)=\frac{6C1*4C3}{10C4}=0.114$

The probability that x is equal to 0, P(x=0) is:

$P(x=0)=\frac{6C0*4C4}{10C4}=0.005$

The probability that x is equal to 3, P(x=3) is:

$P(x=3)=\frac{6C3*4C1}{10C4}=0.381$

Finally, in this case, x can take values from 0 to 4, so the probability that x is greater or equals to 5 is zero.

6 0

3 years ago

(5 x 10^-2) divided by (3.0 x 10^4)

vlada-n [284]

Exact form :

1

_______

600000

Decimal form :

-
1. 6 . 10 ^ -6.

If you can , can you please mark me as brainlist:)

3 0

3 years ago