plese help this is urgent

The mean of the given set of group numbers is 6.6

Given,

In the question:

The Group of numbers are as follows:

6.1, 5.9, 4.2, 5.9 and 10.7

To find the mean of the given set of group of numbers.

Now, According to the question:

Given is the following data:

6.1, 5.9, 4.2, 5.9 and 10.7

We can find the mean of the given set of data using the formula-

Mean (M) = Σ a[i]/n = (Sum of all the elements)/(total number of elements)

Now, n = 5

and Σ a[i] = 6.1 + 5.9 + 4.2+ 5.9 + 10.7 = 32.8

Putting the values in the formula, we get:

M = 32.8/5 = 6.56 = 6.6

Hence, The mean of the given set of group numbers is 6.6

Learn more about Mean at:

https://brainly.com/question/1537458

#SPJ4

The length of the diagonal is between 4 and 5.

What is square root of a number?

A square root of a number is a value that multiplied by itself gives the same number.

Given that;

The length of the diagonal = √18

Now,

Since, The length of the diagonal = √18

And,  √18 = 4.24

Thus, The number 4.24 is lies between two whole numbers 4 and 5 as;

⇒ 4 < 4.24 < 5

⇒ 4 < √18 < 5

⇒ √16 < √18 < √25

Thus, The length of the diagonal is between 4 and 5.

Learn more about the square root visit:

https://brainly.com/question/3617398

#SPJ1

The length of AD is 8.58 units

Here triangle CDE and triangle CAB are similar triangles.

We know that the corresponding sides of similar triangles are in proportion.

CD/CA = CE / CB = DE/AB

Consider, CD/CA = DE/AB

15/(15 + x) = 7/11

15 * 11 = 7 * (15 + x)

165 = 105 + 7x

7x = 165 - 105

7x = 60

x = 8.58 units

Therefore, the length of AD is 8.58 units

Learn more about similar triangles here:

https://brainly.com/question/25882965

#SPJ1

Answer:

See below

Step-by-step explanation:

A vertical line is just x =

 so if   a = 1   b = 0    and c = 9     would be a vertical line through the point

   so you wind up with         x = 9

The 30% of the students withdraw, then, the expected number of withdrawals is the 30% of 20 which is 6.

acc to our question-

hence,The 30% of the students withdraw, then, the expected number of withdrawals is the 30% of 20 which is 6.

learn more about probability click here:

brainly.com/question/13604758

#SPJ4

Answer: its 4.06

Step-by-step explanation:

Answer:

RT

Step-by-step explanation:

Hypotenuse is the greatest and since it is obtuse, it will be even longer.

Answer:

RT is the longest segment.

Step-by-step explanation:

If Angle S is 92°, then AngleR and AngleT are both acute angles. So AngleS is the biggest angle, so the side opposite AngleS is the biggest side. RT is the side opposite from AngleS. RT is the biggest side.

Answer:

$16.30

Step-by-step explanation:

15.99-15%=$13.59

13.59x1.20=$16.30

The irrigation system is positioned 9.5 feet

The spray reaches a maximum height of 34.5 feet

The spray reaches all the way to the ground at about 10.87 feet

How to find the maximum height of the spray

The standard form of a quadratic equation is given by the formula

y = ax^2 + bx + c

compared with the given equation h(x) = −x^2 + 10x + 9.5 the solutions are calculated as follows

The irrigation position refers to the value of h(x) at x = 0

h(x) = −x^2 + 10x + 9.5

h(0) = 0^2 + 10*0 + 9.5

= 9.5

The maximum height is at the symmetry of the parabolic curve, for a curve opening downward.

At the symmetry x = -b/2a

x = -b/2a = -10/(2 * -1) = 5, At x = 5, then y is

h(5) = −(5)^2 + 10 * 5 + 9.5 = 34.5

The maximum horizontal distance is at one of the roots solved as

h(x) = −x^2 + 10x + 9.5

x = 10.87 OR -0.87

The maximum distance is the greatest distance form the origin (0, 0). Therefore maximum distance is at x = 10.87 feet

Learn more about quadratic equations here:

https://brainly.com/question/29339843

#SPJ1

complete question

An irrigation system (sprinkler) has a parabolic pattern. The height, in feet, of the spray of water is given by the equation h(x) = -x^2+10x+7.5 where x is the number of feet away from the sprinkler head (along the ground) the spray is.

The irrigation system is positioned____ feet above the ground to start.

The spray reaches a maximum height of ____feet at a horizontal distance of feet away from the sprinkler head.

The spray reaches all the way to the ground at about_____ feet away

Answer:

  perimeter = 16 ft

Step-by-step explanation:

You want the perimeter of an isosceles triangle with side length 5 ft and altitude 4 ft.

The side lengths being equal mean the triangle is isosceles. That also means altitude PS bisects the peak angle and segment QR. Once we find the length QS using the Pythagorean theorem, we can double that measure to find QR.

The Pythagorean theorem tells us ...

  QS² +PS² = QP²

  QS² +(4 ft)² = (5 ft)²

  QS² = (25 ft²) -(16 ft²) = 9 ft² . . . . . evaluate squares, subtract 16 ft²

  QS = √(9 ft²) = 3 ft

Now we know the base length is ...

  QR = 2·QS = 2(3 ft) = 6 ft

The perimeter is the sum of the outside edge lengths:

  Perimeter = PQ +QR +RP

  Perimeter = (5 ft) +(6 ft) +(5 ft) = 16 ft

The perimeter of ∆PQR is 16 feet.

__

Additional comment

With some practice, you can learn to recognize a 3-4-5 right triangle. That is the triangle used here for each of the right triangles that make up ∆PQR. Once you identify the long side as 4 and the hypotenuse as 5, you know immediately the short side is 3.

The set {3, 4, 5} is called a "Pythagorean triple." Other triples commonly seen in high school problems are {5, 12, 13}, {7, 24, 25}, {8, 15, 17}. Legs of these lengths form a right triangle. Knowing any two (or their ratio) tells you immediately the value of the third. Of course, these triples can be scaled by any factor. (3, 4, 5) scaled by 2 is (6, 8, 10), another commonly seen triple.

There are no isosceles right triangles that have integer values for both the legs and the hypotenuse. If the legs are both 4, the hypotenuse will be 4√2 ≈ 5.657... (an irrational number), not 5.

The given line is positive.

What is slope ?

A line's steepness is determined by its slope. In mathematics, slope is determined by "rise over run" (change in y divided by change in x).

Given that,

The line is crossing the origin and is in the 1 quadrant and 3 quadrant.

This means, the graph of the line starts at the bottom left and goes towards the top right.

If a line has a positive slope, then y always rises when x rises and always falls when x falls (i.e., m > 0). The line's graph thus begins at the bottom left and moves up to the top right.

So, the given line is positive.

To learn more about the slope from the given link

https://brainly.com/question/16949303

#SPJ1

Answer:

A

Step-by-step explanation:

First off, "A" is the only one that even has "x cubed minus one" in it.  The y squared divided by twenty-four is also present.

The equation of the straight line in slope-intercept form is given by

y = -x +6 .

The line of the graph is clearly passing through the points (5,1) and (3,3) .

Hence the slope of the line = (3 - 1) / (3 - 5) = 2 / (-2) = -1

The equation of the straight line will be given by the formula:

y-3 = -1 (x-3)

or, y - 3 = -x +3

or, y + x = 6

One of the most popular ways to display a line's equation is in the slope intercept form, which looks like a straight line.

When the slope of anything like the straight line and in fact the y-intercept are known, the slope intercept formula can be used to determine the equation of a line the y-coordinate of the point where the line crosses the y-axis. A line cannot exist unless every point on the line fulfils an equation.

Hence the equation of the line in slope intercept form is y = -x +6

To learn more about slope-intercept form visit:

https://brainly.com/question/9682526

#SPJ1

The workers would need 3.71 weeks to repair the road.

A generalization of arithmetic in which letters representing numbers are combined using arithmetic rules

Given that the total length of the road is 13km. Workers can repair 3.50 roads per week.

To determine the number of weeks required to repair the road, divide the total by per week. The equation would be:

13 ÷ 3.5

= (13 x 10)/35

= 130/ 35

= 3.71

Therefore the workers would need 3.71 weeks to repair the road.

To learn more about algebra visit

https://brainly.com/question/21443100

#SPJ1

Answer:

$19.00

Step-by-step explanation:

Answer: 4 an 34

Step-by-step explanation:

The greatest number of 40-kilogram crates is 517.5.

From the question, we have

Weight of the crate = 40 kg

Greatest weight that the container can load = 25500 kilograms

Weight of the other shipments on the container = 4800 kg

So the greatest number of 40 kg crates = c

Therefore, the weight of the other shipment + weight of crate x number of crates ≤ greatest weight of the container

4800 + 40c ≤ 25500

40c ≤ 25500 - 4800

40c ≤ 20700

c ≤ 517.5

Hence, the greatest number of 40-kilogram crates is 517.5.

Subtraction:

Subtraction represents the operation of removing objects from a collection. The minus sign signifies subtraction −. For example, there are nine oranges arranged as a stack (as shown in the above figure), out of which four oranges are transferred to a basket, then there will be 9 – 4 oranges left in the stack, i.e. five oranges. Therefore, the difference between 9 and 4 is 5, i.e., 9 − 4 = 5. Subtraction is not only applied to natural numbers but also can be incorporated for different types of numbers.

The letter "-" stands for subtraction. Minuend, subtrahend, and difference are the three numerical components that make up the subtraction operation. A minuend is the first number in a subtraction process and is the number from which we subtract another integer in a subtraction phrase.

To learn more about subtraction visit: https://brainly.com/question/2346316

#SPJ1

Answer: (3/4c*d*d)

Step-by-step explanation:

First, get rid of the denominator by multiplying the numerator by it.

so d*d*d*4c*.

Then now its 3d/d*d*d*4c, you can eliminate a d from the numerator and denominator, and now it's (3/4c*d*d)

Answer:

x= -16/11

Step-by-step explanation:

hope this helps

Answer: x=4

Step-by-step explanation:

28 divided by x+4=11

28 divided by x=7

28/7=4

Answer:

Step-by-step explanation:   57.183= to the whole number= 58.183

Tenth= 57.180

Hundredth= 57.200

Answer:

Nearest Whole Number: 57

Nearest Tenth: 57.2

Nearest Hundredth: 57.18

*Note: When rounding to a place value the number after the place value you want determines whether the place value number says the same or goes up by 1. In order for the place value number to stay the same the number after has to be less than 5 and in order for the place value number to go up by 1 the number after has to be greater than or equal to 5.

By using angles properties (sum of interior angles of a triangle and so) we will see that the measure of angle x is 120°.

Let's define C as the angle inside the triangle that is adjacent to angle x.

We can see that these two are supplementary angles, then we know that:

C + x = 180°.

We also can see that C is an interior angle of a triangle, and remember that the sum of all interior angles of a triangle is equal to 180°, then we can write

68° + 52° + C = 180°

With that equation, we can find the value of C.

C = 180° - 52° - 68° = 60°

Then.

x + C = 180°

x + 60° = 180°

x = 180° - 60° = 120°

That is the measure of angle x.

Learn more about supplementary angles.

https://brainly.com/question/2046046

#SPJ1

Joseph left 469 ounces of candy, according to the given question.

What do you mean by candy?

A sugar-based confection that frequently contains filling and flavoring: a slice of such a confection is called candy. Something that has a lighthearted or frivolous appeal and visual delights.

According to data in the given question,

We have:

Total ounces of candy = 714

Number of candy he shared = 245

Now, we need to determine the candy he has left,

= Total number of candy - Number of shared candy

= 714 - 245

= 469

Therefore, he left 469 ounces of candy.

To learn more about candy, visit:

https://brainly.com/question/22074890?referrer=searchResults

#SPJ4

Answer:

66

Step-by-step explanation:

Answer:

x^2(3x-2) cubic inches OR in^3

OR

3x { 3 [ 3x ( x - 2 ) + 4 ] } - 8 cubic inches OR in^3

I AM UNAWARE IF YOU ASKED THAT ONE SIDE IS (3X-2) OR ALL. I WILL ANSWER BOTH PARTS

-

NOTE: '^' MEANS TO THE POWER OF..

-

Volume = v, abc = 3 sides of cube (height, width, length)

Using the formula for volume in a cube,

[tex]v = abc[/tex]

We can solve this.

If one side is (3x-2)in,

x^2(3x-2) cubic inches OR in^3

If all sides are (3x-2)in,

Use the formula,

[tex](a - b) ^{3} = {a}^{3} + 3ab(b - a) - {b}^{3} [/tex]

We can solve this.

3x { 3 [ 3x ( x - 2 ) + 4 ] } - 8 cubic inches OR in^3

___

If you have any questions regarding formulas or anything, comment and I will get back to you asap.

___

The 99% confidence interval for the population proportion of printers that are used in small businesses, using the z-distribution, is of:

(0.2743, 0.5493)

A confidence interval of proportions has the bounds given by the equation presented next:

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which the variables used to calculated these bounds are listed as follows:

The confidence level is of 99%, hence the critical value z is the value of Z that has a p-value of [tex]\frac{1+0.99}{2} = 0.995[/tex], so the critical value is z = 2.575.

(the critical value can be found either with the z-table or with a z-distribution calculator).

The sample size and the estimate are listed as follows:

[tex]n = 85, \pi = \frac{35}{85} = 0.4118[/tex]

The lower bound of the interval is obtained as follows:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4118 - 2.575\sqrt{\frac{0.4118(0.5882)}{85}} = 0.2743[/tex]

The upper bound of the interval is obtained as follows:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4118 + 2.575\sqrt{\frac{0.4118(0.5882)}{85}} = 0.5493[/tex]

More can be learned about the z-distribution at https://brainly.com/question/25890103

#SPJ1

The following are three equivalent expressions for the submarine's final position -(5)(3) - (2)(4), -(5)(3) + (-2)(4) and -(5)(3) + (2)(-4)

What is defined as the equivalent expressions?

Each float advances by 5 units.

Each group takes a two-unit step.

As a result, the submarine's final position is:

Final = -(5)(3) - (2)(4)

The minus "-" symbol indicates that the submarine is sinking.

Thus, the following are equivalent expressions for the submarine's final position:

-(5)(3) - (2)(4), -(5)(3) + (-2)(4) and -(5)(3) + (2)(-4)

To know more about expressions

brainly.com/question/14083225

#SPJ4

Answer:

y = -1/4(x-1)

Step-by-step explanation:

y - [tex]y_{1}[/tex] = m(x - [tex]x_{1}[/tex])  From the point given [tex]y_{1}[/tex] = 0 and [tex]x_{1}[/tex] = 1

m = slope -1/4  Plug these in and get

y - 0 = -1/4(x - 1)       y-0 is just y