T value and degrees of freedom for this data step by step

The will have to work for 3 weeks in order to save money for down payment of car.

Unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given in the question is a story of john works at the mall, 20 hours a week and makes $8.50 an hour. He is saving for a car and needs a down payment of $500.

Assume that he has to work 'x' number of weeks for down payment.

For 1 hour, John earns → $8.50

Number of hours he work in the mall per week → 20 hours

Amount of money collected in one week → $8.50 x 20 = $170

Money needed for down payment → $500

In 1 week, John earns → $170

So, he earns $1 in → 1 / 170 weeks

Therefore, he will earn $500 in →

(1 / 170) x 500 = 2.94 = 3 weeks (approx.)

Therefore, he will have to work for 3 weeks in order to save money for down payment of car.

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To make a profit Kelsey must make and sell more than 49  additional pendants

in this given sum we need to find how many additional pendents kelsey need to make and sell to make profit .  The information that are give in the sum

she has to pay $200 for the rent

materials for each pendant is $ 7.8 .

for 10 pendants  the total will be 10*7.8 = $78

Therefore she will spend a total of $(78 +200) = $278

So to make a profit the amount of pendants kelsey make multiply it by 13.50 should be greater than the totall amount she spend in making 10 pendants $278 added to the number  of pendants she makes multiply by 7.8 that is the total cost

let the no. of pendants she need to make be x

we can write then above explanation as

13.50x >278 + 7.8x

=> 13.5x - 7.8x > 278 +7.8x - 7.8x      [subtracting 7.8x on both side]

=> 5.7x > 278

=> x > 278/5.7 = 48.77 = 49 (approx.)

Kelsey needs to make more than 49 pendants rto make a profit.

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Answer:

2nd option ==> closure rule

Step-by-step explanation:

The distance, D, is 5,760,000 divided by 2,160, which is 2666.67 (approx)

The TIME function is included as part of Excel's Date and Time features. With the assistance of TIME, we are able to create a time by employing various components for the hours, minutes, and seconds.

While conducting financial analysis, it's possible that we'll need to date a report. Under these conditions, the TIME function may be used to convert a text string into a format that presents the time as a decimal representation of the seconds, minutes, and hours.

Additionally, the function's capabilities include the ability to merge several values into a single time value.

formula= TIME (hour, minute, second)

distance = rate X time

D = RT

T = D/R

720 feet in a minute is equal to 12 feet per second.

480 feet per minute is equal to 8 feet per second.

The number of minutes to go to the flowerbed plus 14 minutes plus the number of minutes to get back to the hive equals 19 minutes.

(D/R) + 14 + (D/R) = 19

(D/R) + 14 + (D/R) = 19

In conclusion, The calculation that we may use to get the distance from the flowerbed to the hive is (D/720 ) plus 14 plus (D/480), which is 19.

(D/720 ) + (D/480) = 5

(D(1200)(480))/1200 + (D(720 )(480))/960 = 5(1200)960

480D + 1200D = 5(720 )480

1200D= 1728000

D=1440

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Answer:

36.6

Step-by-step explanation:

Answer:

Fractional distillation

Step-by-step explanation:

Fractional distillation is the process by which oil refineries separate crude oil into different, more useful hydrocarbon products based on their relative molecular weights in a distillation tower.

Answer:

83

Step-by-step explanation:

[tex] \frac{ - 332}{ - 4} = 83[/tex]

See below for the explanation on how discriminant be used to determine the number of solutions

Let a trinomial in standard form be represented as

y = ax^2 + bx + c

The discriminant (d) is calculated as

d = b^2 - 4ac

The solutions are dependent on the following conditions

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Answer:

  (i)  (x√x)/3 -(√x)/2

  (ii)  f(x) = x³/27 +3x -5

Step-by-step explanation:

You want the value of the integral in each case. One integral is indefinite, the other has conditions specified.

In each case, the power rule applies:

  [tex]\displaystyle \int{x^n}\,dx=\dfrac{x^{n+1}}{n+1}[/tex]

The integral can be rewritten as the sum of two integrals involving half powers.

  [tex]\displaystyle \int{\dfrac{2x-1}{4\sqrt{x}}}\,dx=\dfrac{1}{2}\int{x^{\frac{1}{2}}}\,dx-\dfrac{1}{4}\int{x^{-\frac{1}{2}}}\,dx=\dfrac{x^{\frac{3}{2}}}{2\left(\dfrac{3}{2}\right)}-\dfrac{x^{\frac{1}{2}}}{4\left(\dfrac{1}{2}\right)}\\\\=\boxed{\dfrac{1}{3}x\sqrt{x}-\dfrac{1}{2}\sqrt{x}}[/tex]

You are given the derivative and three conditions:

Together with the integral, the conditions give rise to three equations in the three unknown coefficients.

  [tex]\displaystyle f(x) = \int{ax^2+b}\,dx=\dfrac{a}{3}x^3+bx+c[/tex]

Then the equations we can write for a, b, c are ...

  f'(3) = 4   ⇒   a(3²) +b = 4

  f(3) = 5   ⇒   (a/3)(3³) +b(3) +c = 5

  f(0) = -5   ⇒   a(0³) +b(0) +c = -5

The last equation gives the value of c = -5, so the remaining equations become ...

  9a +b = 4

  9a +3b = 10

Subtracting the first from the second, we have ...

  (9a +3b) -(9a +b) = (10) -(4)

  2b = 6

  b = 3

Using this in the first equation, we find 'a' to be ...

  9a +3 = 4

  a = 1/9

Then f(x) is ...

  [tex]\boxed{f(x)=\dfrac{1}{27}x^3+3x-5}[/tex]

Based on the number of horror films and the number of foreign films, the number of different combinations of 3 movies that Larissa is able to rent are

The total number of movies that Larissa has narrowed down are:

= 19 + 18

= 37 movies

The number of combinations of 3 movies that Larissa can select are:

= Total number of movies! / ( ( Total number of movies - Number of combinations)! x Number of combinations!)

= 37! / ( (37 - 3)! - 3!)

= 46,620 combinations

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The expanded frequency distribution is attached

This will have additional columns which include

The midpoint

The mid point is gotten by adding the lower class limit and the lower class limit and dividing by two

for instance: 10 + 20 / 2 = 10

The relative frequency

In this column they are in percent and the alue is gotten by first summing up all the frequency then finding the percent of each.

for instance: the total sum of the frequency is 365 so

( 17 / 365 ) *  ( 100 / 1 ) = 4.66%

The cumulative frequency

The cumulative frequency is solved by sequential addition of the frequency

for instance:

17 next is

17 + 44 = 61

61 + 68 = 129

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Answer:

  A. No, because two points with the same x-value have different y-values.

Step-by-step explanation:

You want to know if the graph represents a function.

A function is a relation that maps any input value to exactly one output value. On a graph, any vertical line will intercept a function graph in exactly one place.

On the given graph, the vertical line x=10 intersects the graph in two places (y=6 and y=9, different y-values). The graphed relation is not a function.

The military drone must ascend 12250 from its position of 3500ft above sea level feet so that it is vertically in the middle of the plane and the submarine.

To solve this problem we need to understand the concept of sea-level. The sea-level is defined as the average height of all water bodies of the earth. Below sea level is effectively taken as negative length and above sea -level is taken as positive length.

Let us consider the drone will have to ascend x feet to be vertically in between the plane and the submarine.

The submarine is 3500 feet below the sea level.

The plane is 35000 feet above the sea level.

Now we know that the drone is at a height of 3500 feet above the sea level.

Total distance between the drone and the ship=35000-(-3500)=38500ft

Middle point of the two=38500/2 = 19250 feet from the plane

Height above sea level for the drone should be=35000-19250=15750 ft

height of the drone=3500ft

The drone should ascend=15750-3500=12250 feet

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The value of number 3[tex]\sqrt{-512}[/tex]  as complex number is equal to 67.88i.

Given that the number is 3[tex]\sqrt{-512}[/tex].

We are required to find the value of the given number.

We have to first find out the square root of 512. Since we cannot find the square root of a negative number so we have to assume it as complex number and we will multiply the resultant number with i.

A complex number is basically an element of a number system that extends the real numbers with a specific element denoted i called the imaginary unit and satisfying the equation i² = −1 every complex number can be expressed in the form a + bi where a and b are real numbers.

3[tex]\sqrt{-512}[/tex] =3*22.627

=67.88i

It is not an integer and we cannot solve it further.

Hence the value of 3[tex]\sqrt{-512}[/tex] as an complex number is equal to 67.88i.

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There is something wrong in the statement of the question because the solution of 3[tex]\sqrt{-512}[/tex] will not be an integer.

Answer:

uyrddfhjjki

Step-by-step explanation:

Answer:

The square root of 36 is 6 8 cube root is 2 125 cube root is 5 The rationalisation of 12 is 2×2×3

Answer:

1. 0.7

2. 9.7

Step-by-step explanation:

1. 0.67->0.7

2. 9.699->9.7

The solutions to the given quadratic equation 4x² - 4x - 1 = 0 are x = ( 1 - √2 )/2,  ( 1 +√2 )/2.

A quadratic equation in its standard form is;

ax² + bx + c = 0

Where x is the unknown

To solve for x, we use the quadratic formula

x = (-b±√(b² - 4ac)) / (2a)

Given the equation in the question;

4x² - 4x - 1 = 0

Compared to the standard form ax² + bx + c = 0

Plug these values into the quadratic formula above.

x = (-b±√(b² - 4ac)) / (2a)

x = (-(-4) ± √((-4)² - ( 4 × 4 × -1 ))) / (2 × 8)

x = ( 4 ± √( 16 - ( -16) ) / (8)

x = ( 4 ± √( 16 + 16) ) / (8)

x = ( 4 ± √( 32) ) / (8)

32 can be written as 4²×2

x = ( 4 ± √( 4²×2 ) ) / (8)

x = ( 4 ± 4√2 ) / (8)

x = ( 1 ± √2 ) / 2

x = ( 1 - √2 )/2,  ( 1 +√2 )/2

Therefore, the solutions to the given quadratic equation 4x² - 4x - 1 = 0 are x = ( 1 - √2 )/2,  ( 1 +√2 )/2.

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Answer:

Since r = 1/2, and the fifth term = 1

1 = A×[(1/2)^(5-1)]

1 = A×[(1/2)^4]

1 = A× (1/16)

Step-by-step explanation:

Answer:

I tried to solve I got the value of a drink but a popcorn's value comes in negative... Can you recheck it please.......

Answer: The value of RIG is 59 degrees and the value of ZIM is 31    degrees.

Given: Lines AM,ZG, RI are parallel

angle RIM = 90 degree and lines AM,ZG and RI intersect at point I.

Concept: All angles on the same line make an angle of 180 degree.

Since all angles on a line make an angle sum of 180 degree

So using the above property of straight lines,

Angle RIA + angle RIG + angle GIM = 180 degree

90 + 4z+7 +x+2 = 180

4z+x = 81  ----- (1)

Angle AIZ + angle AIR + angle RIG = 180 degree

3x-56 + 90 + 4z+7=180

3x +4z =139 ----- (2)

3(81-4z) +4z =139

243 -8z =139

z=13

x= 81- 52 = 29

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Answer:

timmy neorons, descaration

Step-by-step explanation:

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Answer:

1,314,000 minutes is equal to 2.5 years.

Brainliest, please :)

The side of one side of the square is determined as: 8.5 meters.

A square is a quadrilateral shape that has four sides that have the same length and four interior angles that are right angles (90 degrees).

The perimeter of a square is the sum of all the sides of a square which can be calculated using the following formula given as,:

Perimeter = 4(s), where s represents the length of one side of the square.

We are given that:

Perimeter of the square = 34 meters

Therefore:

34 = 4(s)

Divide both sides by 4

34/4 = 4(s)/4

8.5 = s

s = 8.5 m

Thus, the side of one side of the square is determined as: 8.5 meters.

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The percent of total inventory is Apple, rounded to the nearest tenth of a percent is 15.0%

How do we determine the percentage of claims in Apple?

Out of the total claims of 4,280 items in inventory, the number of claims in Apple is determined as the total claims minus the number of claims attributable to IBM, such that the percentage of total inventory in Apple is computed as the number Apple's claims divided by total claims

number of claims in Apple=total claims-number of claims in IBM

total claims=4,280

number of claims in IBM=3636

number of claims in Apple=4280-3636

number of claims in Apple=644

% of claims in Apple=number of claims in Apple/total claims

% of claims in Apple=644/4280

% of claims in Apple=15.0%(rounded to 1 decimal place as shown in the options provided)

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Answer:

No solutions

Step-by-step explanation:

To solve systems of inequations with absolute values you need to isolate the items inside of the absolute value brackets then solve for x.

[tex]|\frac{x}{4}+5|=-7\\\frac{x}{4}+5=-7\\\frac{x}{4}=-12 \\x=-48[/tex]

Therefore our answers would be -48 and 48, however there are no answers to this solution as if you try either it does not equal -7. Furthermore graphing both sides of the equations shows there is no intersection.

Answer: 12

Step-by-step explanation: f(-4)= 2-3(-4) which =2+12=14

Answer:

Median

Step-by-step explanation:

i think median would be better than mean. This is because with mean, your adding it together then dividing it(by 3 in this case), making the end number higher. tou dont want a higher number in this case.

ex: your numbers are 50, 55,and 90

median = 55 (as it's the middle number)

mean = 65 ( 90+ 55+ 50 / 3)

so median is the lower number, meaning it would be better in this** case.