The _______________ property states: a plus b equals b plus a

1. associative
2. commutative
3. inverse
4. identity

Answer:

–0.985

The correct answer is D

The x-intercept of the function is (-1/3, 0) and (5, 0)

Given is a graph of a parabola having equation y = -3x²+14x+5, we need to find the x-intercept of the graph,

So to find the x-intercept put y = 0,

Therefore,

-3x²+14x+5 = 0

-3x²+15x-x+5 = 0

-3x(x-5)-1(x-5) = 0

(-3x-1)(x-5) = 0

Therefore,

x = -1/3 and x = 5

Hence the x-intercept of the function is (-1/3, 0) and (5, 0)

Learn more about x-intercept click;

https://brainly.com/question/14180189

#SPJ1

As per given by the question,

There are given that,

Now,

Solve this equation with significant figures.

So,

The significant figures of the solution is,

Hence, the value of the given equation is 48.74

Answer:

Yamato's here!

Step-by-step explanation:

Oh well thank you! Have a nice and great holiday!!

(^ - ^ /)Xoxo, Yamato-

Answer:

...

Step-by-step explanation:

To find the number of calories Davis burns while running for 30 minutes, we can use the information that he burns 1080 calories running for 2.5 hours.

We know that 30 minutes is 1/120 of 2.5 hours. So, we can divide the total number of calories by 120 and we get the calorie burn for 30 minutes:

1080 calories / 120 = 9 calories

The number of calories Davis burns while swimming for 30 minutes can be determined by using the equation y = 266x, where x represents the number of hours he swims. We know that he swims for 30 minutes, or 1/120 hours, so we can plug that value into the equation:

y = 266(1/120) = 2.216 calories

So, Davis burns 7 calories more running for 30 minutes than swimming for 30 minutes, assuming the rates remain constant.

Answer:

2x48 is 96

Step-by-step explanation:

Answer:

x= 1  29/67

Step-by-step explanation:

just do 2x 48/67 on a fraction calculator and boom heres x. Lol, hope this helps.

Step-by-step explanation:

We must rotate point (0,0) across line y=x+2.

First, we need a line that is perpendicular through y=x+2 and passess through 0,0

The slope is -1 so we have

\(y - 0 = - 1(x - 0)\)

\(y = - x\)

So the slope perpendicular to that line is y=-x.

Next, the we must find where they intersect at.

\( - x = x + 2\)

\( - 2 = 2x\)

\(x = - 1\)

\( - ( - 1) = 1\)

So they intersect at -1,1.

Next, the point of intersection is the midpoint and the orgin is endpoint and the image of A is the other endpoint.

The x coordinate of the image of A is -2, and the y coordinate is 2.

So the answer is (-2,2)

Your graph is above.

Answer:

180°

Step-by-step explanation:

Angle A is acute angle

Angle B is obtuse angle

Since, CD is a straight line.

So, angles A and B add up to 180°. (because they form linear pair angles)

Answer: 180

Step-by-step explanation: Angle A is acute angle

Angle B is obtuse angle

Since, CD is a straight line.

So, angles A and B add up to 180°. (because they form linear pair angles)

Answer:

X intercept = 6  

Y intercept = -3

Step-by-step explanation:

An intercept is where the line goes through the y and x axis on the axis!

Answer:

chromosomes

Step-by-step explanation:

The correct standard deviation here is 24.25

You can adjust the standard deviation accurately, using a VERY useful algebraic identity.

Given that we don’t have all the xi or the xi - mean, but here’s a nice identity:

sum( (xi - mean )2) = sum(xi2) - (1/n)( sum(xi) )2

in other words,

(sum of the squares) minus (1/n)*(square of the sum)

We will start with the original numbers before the error was detected:

STD = 10

Sum(xi) = 4000

using the new identity,

std = \(\sqrt\)(sum(xi2) - (1/n)( sum(xi) ))2

From this, we can solve for sum(xi2)

std2= sum(xi2) - (1/n)(( sum(xi) )2)

sum(xi2) = std2 + (1/n)( (sum(xi))2  )

100 + 40002/100 = 160100

Now we can change those numbers to make the new standard deviation

The new sum(xi ) is the old sum minus the erroneous scores (30 and 70) plus the correct values (3 and 27) =

4000 -30 -70 + 3 + 27 = 3930

The new sum(xi2) Is the old sum minus the squares of the erroneous scores (900 and 4900) plus the squares of the correct scores (9 and 729) = 160100 -5800 + 738 = 154300+738 = 155038

Now the new standard deviation is

std = \(\sqrt(sum(xi2)\) - (1/n)( (sum(xi))2)

= \(\sqrt( 155038 - 39302/100)\\= \sqrt( 155038 - 15444900/100)\\= \sqrt( 155038 - 154449)\\= \sqrt( 589 )\)

= 24.25

Therefore, the correct standard deviation is 24.25

Read more about standard deviation here:

https://brainly.com/question/24298037

#SPJ1

Answer:

The answer is below

Step-by-step explanation:

The question is not complete, we need to be given the dimensions of the big cylindrical water bottle. Let us assume, that the big bottles has a dimension of radius 3 in and height 5 in.

Solution:

Firstly, we need to find the volume of the big cylindrical bottle, then we find the volume of the small cone.

Volume of the cylindrical bottle = πr²h = π(3²)5 = 45π in³

Volume of the small cone = πr²h/3 = π(1²)(3/3) = π in³

Therefore the number if cups required to fill the water bottle is the ratio of the volume of the cylinder to the volume of the small cone. Hence:

number of cone cups = 45π in³ / π in³ = 45 cups

Hence 45 cups of the cone would be needed to fill the cylindrical bottle

Answer:

27:-3×9

51:-3×17

In 27 and 51 the common one is 3 and hence it is the greatest common factor.✓✓

if you want smallest or lowest common factor then you have to take the common 3 as one and multiply like this:-3×9×17=459 is the Lowest common factor.

*mark me brainliest

Answer:

m<2 = 87

m<4 = 87

m<7 = 93

Step-by-step explanation:

Answer: 90

Step-by-step explanation:

2*43+4

86+4

90

Answer:

94

Step-by-step explanation:

43 +4 = 47

47 x2 = 94

Answer:

I dont know the answer but, go on google and look up: Cauculater Soup

I hope it helps :)

9514 1404 393

Answer:

  $2300.01

Step-by-step explanation:

The down payment is 14% of $394,000, so is ...

  0.14 × $394,000 = $55,160

This means the principal amount of the loan is ...

  $394,000 -55,160 = $338,840

__

The amount of the monthly loan payment is given by the amortization formula ...

  A = P(r/12)/(1 -(1 +r/12)^(-12t))

where P is the principal amount, r is the annual interest rate, and t is the number of years. Filling in the values, we have ...

  A = $338,840(0.072/12)/(1 -(1 +0.072/12)^(-12·30))

  = $338,840(0.006)/(1 -(1.006^-360)) = $2300.01

The monthly payment is $2300.01.

_____

Additional comment

Such calculations are commonly done using a spreadsheet, financial calculator, or app. If you're doing a number of financial calculations, it can be a good idea to obtain and learn to use an appropriate tool.

Answer:

\(2x^3 +x^2 -5x+9 -\frac{17}{x+2}\)

Step-by-step explanation:

See picture for explanation

Answer:

a) Population of adults who watch local news

b) Population of adults who use cell phones or tablets.

c) They conducted a sample survey

d) I will find the results interesting.

I as a restaurant owner will also enable a Search Engine Optimization for my website to place my restaurant on the top when local restaurants are searched.

Step-by-step explanation:

a) This finding is applicable to the population of adults who watch local news.

This is because the sample will be collected from the population of adults who watch local news to see the percentage that actually get those local news from their cell phones or tablet computers.

b) This finding is applicable to the population of adults who use cell phones or tablets.

The sample will be collected from the population of adults who use cell phones or tablets. A survey can now be carried out to find out what they use their phones or tablets for, whether to search for restaurants or get weather reports.

c) The Pew Researchers conducted a sample survey because a census data cannot contain the information about weather reports, local restaurants or news channel. Precise information can only be gotten from a sample survey.

d) Yes, I will. Having an idea of how large the population of those that search for local restaurants on phones and tablets will enable me to channel my publicity towards this media. I as a restaurant owner will also enable a Search Engine Optimization for my website to place my restaurant on the top when local restaurants are searched.

The Variance of the given data set given the sample mean as 7 is; C: 10

We want to find the variance of the given data and the formula is;

Var = ∑(x_i - x)²/(n - 1)

From the table, we see that;

∑(x_i - x)² = 4 + 4 + 16 + 0 + 16

∑(x_i - x)² = 40

Now, the number of terms is 5 and as such;

Variance = 40/(5 - 1)

Variance = 40/4

Variance = 10

Read more about Variance of Data at; https://brainly.com/question/15858152

#SPJ1

Answer:

Step-by-step explanation:

it would be "c" because the question asks for the number that makes the inequality true

4x≤ x+3

the graph in c is saying that every number that is 1 or less than 1 makes the inequality true. so lets take -7 as an example

4 x -7=-28

-28+3=-25

-25 is greater than -28 so the inequality is true. the reason why graph d doesnt work is because if we plug in 2 into the equation, then 4x =8 and x+3=5

5 is not greater than 8 so it doesnt work

The probability that a random sample of 30 smoke detectors will have a mean lifetime between 57 and 62 months is 0.8945.

Let x represent the lifespan of smoke detectors manufactured by a business.

We assume that the lifetime of smoke detectors manufactured by a business is normally distributed.

Given: The average lifetime of a company's smoke detectors is 5 years, or 60 months, with an 8-month standard deviation.

μ = 60, σ = 8 and samle size n = 30

The probability that a random sample of 30 smoke detectors will have a mean lifetime of 57 to 62 months is :

P(57 < P < 62) = P{(57-60)/(8/√30) < ((x-μ)/σ)/(σ/√n) < (62-60)/(8/√30)}

P(57 < P < 62) = P(-1.37 < z < 2.05)

= P(z<2.05) - P(z< -1.37)

= P(<2.05)-(1-P(<1.37)) P(Z) = 1 − P(Z < 2)]

= 0.9798178-(1-0.9146565) [By using p-value table for z]

= 0.8944743≈ 0.8945

Hence, the probability that a random sample of 30 smoke detectors will have a mean lifetime between 57 and 62 months is 0.8945.

Learn more about the z-score here:

brainly.com/question/13793746

#SPJ1

Answer:

I think the outliers are 2, 5, 6, and 6. Not sure about 8 though

Answer:

4.5

Step-by-step explanation:

beginning-     x+5=3x-4

combine like terms-     9=2x

divide-   x= 4.5

The solution of equation is 4.5

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. LHS = RHS is a common mathematical formula.

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.

We have Equation

x +5 = 3x -4

Now, solving the equation for x we get

x+ 5 = 3x -4

x -3x = -4 -5

-2x = -9

x= -9/ (-2)

x= 9/2

x= 4.5

Thus, the solution of equation is 4.5

Learn more about Equation here:

https://brainly.com/question/29538993

#SPJ2

Answer:circle

Step-by-step explanation:

I just got it right

Answer:

Circle

Step-by-step explanation

Answer: The percentage of people surveyed who liked blue cars is 50%.

Step-by-step explanation:

Total number of people partaking in survey= 36

number of people who like blue cars= 18

therefore, fraction of people who liked blue cars= \(\frac{18}{36}\)

hence, percentage of people who liked blue cars= (18/36)*100 %

                                                                                  = 50%  

To learn more about percentages visit the link below:

https://brainly.com/question/30399396

Answer:

Percentage of people who like blue-coloured cars is 50%

Number of people who were surveyed=36

Number of people who like blue-colored cars=18

Therefore, Percentage of people who like blue cars= (Number of people who like blue cars/ Number of people who were surveyed)*100

=(18/36)*100

=50%

Read more about percentage

https://brainly.in/question/21062337#:~:text=Answer%3A,has%20no%20unit%20of%20measurement.

The inclination of the line represented by the equation y = x + 3 is 1, and the inclination of the line represented by the equation 3x - 2y = 6 is 3/2.

To determine the inclination (or slope) of a straight line, we can examine the coefficients of the variables x and y in the equation of the line.

The inclination represents the ratio of how much y changes with respect to x.

Equation: y = x + 3

In this equation, the coefficient of x is 1, which means that for every increase of 1 in x, y also increases by 1.

This indicates that the inclination of the line is positive, meaning it slopes upwards as x increases.

Since the coefficient of x is 1, the inclination can be expressed as 1/1 or simply 1.

Equation: 3x - 2y = 6

To determine the inclination, we need to rearrange the equation in slope-intercept form (y = mx + b), where m represents the slope.

First, isolate y:

-2y = -3x + 6

Divide the entire equation by -2 to solve for y:

y = (3/2)x - 3

Now we can observe that the coefficient of x is 3/2.

This indicates that for every increase of 1 in x, y increases by 3/2. Therefore, the inclination of this line is positive, indicating an upward slope.

The inclination can be expressed as 3/2.

For similar question on inclination.

https://brainly.com/question/29723347

#SPJ11