sierra read for 220 minutes 1 week. Chen read for 1/2 hour a day for 7 days which explanation is correct

Empirical, A knowledge of statistics is essential for anyone who wants to make informed decisions based on empirical evidence.

A knowledge of statistics helps us make decisions based on empirical evidence. Empirical evidence is data that has been collected through observation and experimentation, and statistics is a method for analyzing and interpreting this data. By using statistical tools and techniques, we can draw conclusions from empirical evidence and make informed decisions based on this information.

Statistics plays a crucial role in modern society, from medicine and public policy to business and finance. A knowledge of statistics enables individuals to understand and analyze data, to make informed decisions based on empirical evidence, and to communicate findings to others. Statistics helps us to quantify uncertainty and variability, to identify patterns and trends, and to make predictions based on past data. By using statistical methods, we can determine the probability of certain outcomes, assess risks and benefits, and evaluate the effectiveness of interventions or policies. For example, in medical research, statistics is used to test the effectiveness of new treatments or therapies, to determine the safety of drugs, and to identify risk factors for diseases. In public policy, statistics is used to analyze demographic trends, to assess the impact of social programs, and to inform decision-making around issues such as climate change or public health.

To know more about statistics visit :-

https://brainly.com/question/31538429

#SPJ11

Answer:

\(TG = 2.2\)

Step-by-step explanation:

Represent Tristan's house with T, his grandparent's with G and his parents with P.

Such that:

\(TP = 6\)

\(GP = 6.4\)

Required

Find TG

To solve this, we make use of Pythagoras Theorem which is represented as:

\(GP^2 = TP^2 + TG^2\)

Substitute values for GP and TP

\(6.4^2 = 6^2 + TG^2\)

\(40.96 = 36 + TG^2\)

Collect Like Terms

\(TG^2 = 40.96 - 36\)

\(TG^2 = 4.96\)

\(TG = \sqrt{4.96\)

\(TG = 2.2\) --- Approximated

Hence, the distance between Tristan ans his grandparent's house is 2.2 miles

Answer:

25.12

Step-by-step explanation:

Answer:

4 pack priced at £2.04 is better value deal.

Step-by-step explanation:

The 4 pack is priced at £2.04

cost of one pack will be equal total price divided by no. of roll in one pack

cost of one pack will be  £2.04 /4 = £0.51

The 9 pack is priced at £4.68

cost of one pack will be  £4.68 /9 = £0.52

As price per toilet roll for  4 pack is  £0.51 which is less than

price per toilet roll for  9 pack which is  £0.52

4 pack priced at £2.04 is better value deal.

Answer:

4 pack priced at £2.04 is better value deal.

Step-by-step explanation:

Answer:

B) 0=(2x+3)(x-1)

Step-by-step explanation:

factor the equation f(x) = 2x² + x - 3

=> f(x) = (2x + 3)(x - 1)

Option B is correct.

A zero of a function is a member of x of the domain of f such that f(x) vanishes at x, that is the function f attains the value of 0 at x.

According to the given question

we have a function

\(f(x)=2x^{2} +x-3\)

\(f(x)=2x^{2} + 3x-2x-3\)

\(f(x)=2x^{2} -2x+3x-3\)

\(f(x)=2x(x-1)+3(x-1)\)

\(f(x)=(2x+3)(x-1)\)

for finding the zeros of f(x), substitute f(x)=0

\((2x+3)(x-1)=0\\\)

⇒ x=\(\frac{-3}{2}\) and x=1

Hence, option B is used for finding the zeros of the given function f(x).

Learn more about the zeros of function here:

https://brainly.com/question/944636

#SPJ2

Answer:

$156.96

Step-by-step explanation:

10% off of $160.00 would be $16.00 so minus that by $160.00. Which then equals $144.00. Sales tax should be reduced to the sale price. So that would make it 144 times 0.09 for the 9% which equals $12.96 then add the $144.00 which then makes it $156.96. Hope it helps and I'm not wrong about sales tax:)

Answer:

[A] 6 (5+2)

Step-by-step explanation:

Solve each answer choice:

[A] 6(5+2) = 30+12   [True]  [6*5=30 and 6*2 = 12.. So 30+12]

[B] (6+5)(6+2)=11 * 8 [False] [6+5 =11 and 6+2=8.. 11*8]

[C] (6*5) (6*2)= 30 * 12 [False] [6*5=30 and 6*2 = 12]

Hence, [A] 6(5+2) is the correct Answer .

We can also find the answer by finding all the solutions:

30 + 12 = 42

[A] 6(5+2) = 30+12 = 42

[B] (6+5)(6+2)=11 * 8=88

[C] (6*5) (6*2)= 30 * 12 = 360

[RevyBreeze]

Answer:

10% of your monthly earning

Answer:

1st, 2nd, 4th

Step-by-step explanation:

Lengthxwidthxheight

Since it is a cube, all 3 are the same

So,

3/4x3/4x3/4 OR 3^3/4^3 OR (3/4)^3

27/64ft^3

Answer:

The answer will be 55 student tickets

Step-by-step explanation:

Answer:

x=-1

Step-by-step explanation:

Answer:

10x = 2x -8

-2x -2x

8x = -8

divide by 8

x = -1

The binomials  5x-2yz are a factor of this expression

25x^2-4y^2z^2

This is further explained below.

Generally, A binomial is a kind of polynomial that is used in algebra and is defined as the sum of two terms, each of which is a monomial.

After monomials, this is the sort of sparse polynomial that is the easiest to understand.

The word "binomial" refers to an algebraic expression that consists of just two different terms. This is a polynomial with two terms.

25 x^2-4 y^2 z^2

Rewrite 25 x^2 as (5 x)^2.

(5 x)^2-4 y^2 z^2

Rewrite 4 y^2 z^2 as (2 y z)^2.

(5 x)^2-(2 y z)^2

Since both terms are perfect squares, factor using the difference of squares formula, a^2-b^2=(a+b)(a-b) where a=5 x and b=2 y z.

(5 x+2 y z)(5 x-(2 y z))

Simplify.

(5 x+2 y z)(5 x-2 y z)

Read more about binomials  

https://brainly.com/question/13870395

#SPJ1

Answer: 325.6

Step-by-step explanation: 6 is in the tenth place and you don't round up the two

Answer: 14 cars.

Step-by-step explanation:

A car can be washed with : 100/11 oz.

1 gallon=128 oz.

Hence,

\(\displaystyle\\\frac{128}{\frac{100}{11} } =\frac{128*11}{100} =\frac{1408}{100} =14,08\ (cars).\)

The total number of cars that can be washed with 1 gallon of soap if 100oz Can wash 11 cars would be given as 14 cars

To determine how many cars can be washed with 1 gallon of soap, we need to find the ratio between the amount of soap used and the number of cars washed.

Given that 100 oz of soap can wash 11 cars, we can set up the following proportion:

100 oz soap / 11 cars = 1 gallon soap / x cars

I gallon is given as 128 OZ

Such that we have

128 x 100 / 11

= 14.08 cars

Hence the total number of cars would be given as 14 cars

Read more on total number here https://brainly.com/question/25734188

#SPJ2

Answer:

124580 > 306396 > 459210

Step-by-step explanation:

Answer:

I don't see the question but okay can u mark meh.

Step-by-step explanation:

Answer:

( 5, 3 )

Step-by-step explanation:

I imagine you plug in the given ordered pair to the rule:

( x - 3, y + 9 )

( 2 - 3, 12 + 9 )   ( - is the same as going to the right, so it basically adds ).

                         ( + is the same as going to the right, so it basically subtracts ).

( 5, 3 )

Hopefully this helped!

Brainliest please?

Answer:

Yew, he has enough money to buy the guitar in september.

Step-by-step explanation:

300*0.75=225        300+225=525

650*0.35=195            650-195=455

sales tax:    455*0.05=22.75          455+22.75=477.75

Yes , Arnold have enough savings to buy the guitar

Savings amount of Arnold is $ 525 and the price of the guitar is $ 477.75

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the original price of the guitar be = $ 650

Let the initial savings of Arnold be = $ 300

Now , Arnold saved 75 % more than what he actually had

And , the equation will be

So , the new savings of Arnold is = 300 + ( 75/100 ) x 300

The new savings of Arnold is = 300 + ( 300 x 0.75 )

The new savings of Arnold is = 300 + 225

The new savings of Arnold is = $ 525

Now , the price of the guitar is discounted by = 30 %

And , the equation will be

So , the new price of the guitar after discount is = 650 - ( 30/100 ) x 650

The new price of the guitar after discount is = 650 - ( 650 x 0.30 )

The new price of the guitar after discount is = 650 - 195

The new price of the guitar after discount is = $ 455

Now , A sales tax of 5 % is priced on the guitar

And , the equation will be

So , the sale price of the guitar is = 455 + ( 5/100 ) x 455

The sale price of the guitar is = 455 + 22.75

The sale price of the guitar is = $ 477.75

Now , the new savings of Arnold is greater than the sale price of the guitar

$ 525 > $ 477.75

Therefore , Arnold have enough savings to buy the guitar

Hence , Yes , Arnold have enough savings to buy the guitar

Savings amount of Arnold is $ 525 and the price of the guitar is $ 477.75

To learn more about equations click :

https://brainly.com/question/10413253

#SPJ2

Answer:40

Step-by-step explanation:

look at the number of lions at 22 which should be one line after 20, if you use a ruler to connect that line to the best-fit green line you can find the answer 40 as the side on the number of hyenas (number 40) is directly aligned with the part of the green line you previously connectec

Answer:[2.5,4]. D

Step-by-step explanation:

To plot the function f(x) = -4x^2 + sin(5x) and its derivative, and to save the results in a file named "results.txt" with 2 decimal places.

You can use the following MATLAB code:

```matlab

x = -10:0.5:10; % Generate x values

f = -4*x.^2 + sin(5*x); % Calculate f(x)

df_dx = -8*x + 5*pi*cos(5*x); % Calculate the derivative

% Saving results to file

output = [x', f', df_dx'];

dlmwrite('results.txt', output, 'delimiter', '\t', 'precision', '%.2f');

1. First, we define the range of x values using the vector `-10:0.5:10` to cover the desired interval with a step size of 0.5.

2. Next, we calculate the values of f(x) and its derivative using the defined mathematical expressions.

3. We then plot the function and its derivative using the `plot` function. The red dashed line represents f(x), and the blue solid line represents its derivative.

4. To save the results, we create a matrix `output` that concatenates the x values, f(x), and the derivative column-wise.

Learn more about decimal places here: brainly.com/question/20563248

#SPJ11

The area under the standard normal curve to the left of z equals 1.25 is given as 0.8944 (rounded to four decimal places).  

A standard normal distribution is a normal distribution that has a mean of zero and a standard deviation of one. Standardizing a normal distribution produces the standard normal distribution. Standardization involves subtracting the mean from each value in a distribution and then dividing it by the standard deviation. Z-score A z-score represents the number of standard deviations a given value is from the mean of a distribution.

The z-score is calculated by subtracting the mean of a distribution from a given value and then dividing it by the standard deviation of the distribution. A z-score of 1.25 implies that the value is 1.25 standard deviations above the mean.  To find the area under the standard normal curve to the left of z = 1.25, we need to utilize the standard normal distribution table. The table provide proportion of the distribution that is below the mean up to a certain z-score value.

In the standard normal distribution table, we look for 1.2 in the left column and 0.05 in the top row, which corresponds to a z-score of 1.25. The intersection of the row and column provides the proportion of the distribution to the left of z equals 1.25.The value of 0.8944 is located at the intersection of row 1.2 and column 0.05, which means that 0.8944 of the distribution is below the value of z equals 1.25. Hence, option (b) 0.8944.

To know more about curve, visit:

https://brainly.com/question/32496411

#SPJ11

Answer:

It is D

Step-by-step explanation:

The equation of the horizontal asymptote is  y = − 4  .Horizontal Asymptote:  y = - 4

Algebra test because the correlation is higher.

What does a statistical correlation mean?

A statistical metric known as correlation, which is given as a number, describes the strength and direction of a relationship between two or more variables.

                         Although there may be a correlation between two variables, this does not necessarily imply that the change in one variable is what led to the change in the values of the other variable.

Why correlation, you ask?

In common conversation, we use the word correlation to describe situations where two or more items seem to be connected.

                       In the field of analytics, correlations are certain numbers that are computed to express how closely related variables are to one another.

Learn more about Correlation

brainly.com/question/14515676

#SPJ4

Answer:

12.68

Step-by-step explanation:

With reference angle 45°

perpendicular (p) = 9

hypotenuse (h) = c

Now

sin 45 ° = p/ h

0.71 = 9 / c

c = 9 / 0.71

c = 12.68

Hope it will help :)

Answer:

5($2.50)+3($1.50)=17

Step-by-step explanation:

you you just need to put up quantity by side of the bar pound it goes in the brackets that will give you the answer when you multiply that or something fruits value.

Answer:

Step-by-step explanation:

To find the first five terms of the sequence defined by the recurrence relation n, for n1, 2, 3,..., where a1, we can use the given formula to generate the terms one by one.

The first five terms of the sequence defined by the recurrence relation n, for n1, 2, 3,..., where a1, are:

a1 = 1, a2 = 2, a3 = 3, a4 = 4, a5 = 5.

So, the first term of the sequence, a1, is simply given as a1 = 1, as per the recurrence relation.

To find the second term, we use the formula n, which means plugging in

n = 2: a2 = 2.

To find the third term, we use the formula again, but this time with

n = 3: a3 = 3.

We continue in this way, using the formula with n = 4 and n = 5 to find the fourth and fifth terms of the sequence, respectively:

a4 = 4

a5 = 5

Therefore, the first five terms of the sequence defined by the recurrence relation n, for n1, 2, 3,..., where a1, are:

a1 = 1, a2 = 2, a3 = 3, a4 = 4, a5 = 5.

To know more about Recurrence relations:

https://brainly.com/question/31384990

#SPJ11

Complete question :

Lower-than-expected demand for LCD TVs has spurred manufacturers to cut prices in recent years. The average price P of a 32-in. LCD TV t years after 2005 can be approximated by P(t) 1052(0.793), where t0 corresponds to 2005 a) What was the average price of an LCD TV in 2005? in 2009? in 2011?

Answer:

1052 ; 416.01 ; 261.61

Step-by-step explanation:

Given the price function :

P(t) = t0(0.793)^t

P(t) = 1052(0.793)^t

Price in 2005 = 1052

The average price of LCD in 2005 is t0

t - t0 = 2005 - 2005 = 0

P(0) = 1052(0.793)^0 ;

P(0) = 1052 * 1 =

Price in 2005 = 1052

Price in 2009 :

t = 2009 - 2005 = 4

P(t) = t0(0.793)^t

P(4) = 1052(0.793)^4

P(4) = 1052 * 0.39534 = 416.0145

Price of LCD in 2009 = 416.01

Price in 2011

t = 2011 - 2005 = 6

P(t) = t0(0.793)^t

P(6) = 1052(0.793)^6

P(6) = 1052 * 0.248679 = 261.6103

Price of LCD in 2009 = 261.61

Answer:

A.  {(7,5), (-6,0), (2,3)}

Step-by-step explanation:

All of the x values do NOT repeat

I hope this helps!

pls ❤ and mark brainliest pls!