25 POINTS!! help as soon as possible, please! I am timed and need this answer to help me pass my math class!


You began membership in a new health and fitness club that has access to a dietician and personal trainer. They help you develop a special eight-week diet and exercise program. The data in the following table represents your weight, w, as a function of time, t, over an eight-week period.

Time (weeks)

0

1

2

3

4

5

6

7

8

Weight (lb)

150

144

143

141

140

137

137

132

129


Using Delta notation, determine the average rate of change of weight over the last four weeks of the program. (include weeks 4 and 8 in your calculations)

Answer:

The total deposit amount is 225.

Step-by-step explanation:

-350 + 225 + x = 100

-125 + x = 100

x = 225

Hope this helps. :)

Stay safe, happy, and healthy. Have a great day!

Answer:

Physics - The position of a particle experimenting an uniform accelerated motion. (Quadratic function)

Chemistry - The velocity of the chemical reaction as a function of temperature. (Exponential function)

Physics - Convective heat transfer of an element with its surroundings. (Linear function)

Physics - Time conversion from seconds to minutes. (Linear function)

Physics - Radiative heat transfer from an element. (Quartic function)

Step-by-step explanation:

There are many examples of applications of function in real life:

Physics - The position of a particle experimenting an uniform accelerated motion. (Quadratic function)

[tex]y = y_{o} + v_{o}\cdot t + \frac{1}{2}\cdot a \cdot t^{2}[/tex] (1)

Where:

[tex]y[/tex] - Current position.

[tex]y_{o}[/tex] - Initial position.

[tex]v_{o}[/tex] - Initial velocity.

[tex]a[/tex] - Acceleration.

[tex]t[/tex] - Time.

Chemistry - The velocity of the chemical reaction as a function of temperature. (Exponential function)

[tex]k = A\cdot e^{-\frac{E_{o}}{R\cdot T} }[/tex] (2)

Where:

[tex]A[/tex] - Frequency factor.

[tex]E_{o}[/tex] - Activation energy.

[tex]R[/tex] - Ideal gas constant.

[tex]T[/tex] - Temperature.

[tex]k[/tex] - Kinetic constant.

Physics - Convective heat transfer of an element with its surroundings. (Linear function)

[tex]\dot Q = h\cdot A_{s} \cdot (T-T_{\infty})[/tex] (3)

Where:

[tex]h[/tex] - Convective constant.

[tex]A_{s}[/tex] - Surface area.

[tex]\dot Q[/tex] - Heat transfer rate.

[tex]T_{\infty}[/tex] - Temperature of the surroundings.

[tex]T[/tex] - Surface temperature of the element.

Physics - Time conversion from seconds to minutes. (Linear function)

[tex]t' = \frac{1}{60}\cdot t[/tex] (4)

Where:

[tex]t[/tex] - Time, in seconds.

[tex]t'[/tex] - Time, in minutes.

Physics - Radiative heat transfer from an element. (Quartic function)

[tex]\dot Q = \epsilon \cdot \sigma \cdot A_{s}\cdot T^{4}[/tex] (5)

Where:

[tex]\dot Q[/tex] - Heat transfer rate.

[tex]T[/tex] - Surface temperature of the element.

[tex]A_{s}[/tex] - Surface area.

[tex]\epsilon[/tex] - Emissivity.

[tex]\sigma[/tex] - Stefan-Boltzmann constant.

Answer:

36

Step-by-step explanation:

f * √g = k

12 * √64 = k

k = ± 96

g = k² / f² = (± 96)² / 16² = 36

Answer:

g = 36

Step-by-step explanation:

Given f is inversely proportional to [tex]\sqrt{g}[/tex] then the equation relating them is

f = [tex]\frac{k}{\sqrt{g} }[/tex] ← k is the constant of proportion

To find k use the condition when f = 12 , g = 64 , then

12 = [tex]\frac{k}{\sqrt{64} }[/tex] = [tex]\frac{k}{8}[/tex] ( multiply both sides by 8 )

96 = k

f = [tex]\frac{96}{\sqrt{g} }[/tex] ← equation of proportion

When f = 16 , then

16 = [tex]\frac{96}{\sqrt{g} }[/tex] ( multiply both sides by [tex]\sqrt{g}[/tex]

16 × [tex]\sqrt{g}[/tex] = 96 ( divide both sides by 16 )

[tex]\sqrt{g}[/tex] = 6 ( square both sides )

g = 6² = 36

the 1 is in the 10 million place

Answer with step-by-step explanation:

I'll use the list of referents you had on your other question and I believe this is a reference to that list.

Part A:

Use the reference of an adult stride (about 1 yard) to estimate the dimensions and length of the lawn edging. The dimensions can be used to find the area, in square yards, that is required to fill both sides of the flower beds.

Part B:

Similarly, you can use an adult stride of about 1 yard as a reference to measure to dimensions of the paved area and the dimensions of the brick. Using these dimensions, you can find area of the paved walkway and the area (surface area of top only) in square yards. Use these areas to find the approximate number of bricks needed to fill the walkway.

Answer:

1.6 hours

Step-by-step explanation:

40% of 4

turn 40% to a decimal by moving the percent to the left twice (0.40)

multiply 0.40 by 4

you get 1.6

1.6 is your answer

hope i helped, tell me if you get it right! :)

let the original price be x.

x-20% of x= 75

= x- 0.20x= 75

= 0.8x= 75

= x= 75/0.8

=x= 93.75

Answer: the original price is $93.75

pls mark me brainliesttt :))

9514 1404 393

Answer:

  d.  AB = 54

Step-by-step explanation:

The triangle is isosceles, so AB = AC.

  (4x +6) = (5x -6)

  12 = x . . . . . . . . . . . . add 6-4x to both sides

Then the length of AB is ...

  AB = 4x +6 = 4(12) +6 = 48 +6

  AB = 54

Answer:

20/10 goes to neither since it equals 2

0.02 goes to 2/100 since it is the same as 0.02

200 goes to neither because it is over 2/10 and 2/100

0.20 goes to 2/10 since 2/10 is equal to 0.20

2.0 goes to neither because it equals 2

Hope this helped

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

25=5x5

Answer:

z = 5 meters

Step-by-step explanation:

since the area = 25 [tex]m^2[/tex] and the only value is z, we have to multiply a number by itself that will equal  25 [tex]m^{2}[/tex].

z × z = 25 [tex]m^{2}[/tex]

5 × 5 = 25 [tex]m^{2}[/tex]

Answer:

6 units

Step-by-step explanation:

JK + KL = JL

3x + 5x-6 = 4x+2

8x-6 = 4x+2

subtract 4x from each side to get:

4x - 6 = 2

add 6 to each side to get:

4x = 8

x = 2

JK = 3x and x=2 so JK = (3)(2) or 6

The numerical length of JK = 6

What is Line Segment?

" A line segment is a line section that can link two points. "

We know that point K is divide line JL

Given that JL = 4x+2

                 KL = 5x-6

                JK = 3x

So,  Equation is JK+KL = JL

                           3x+5x-6 = 4x+2

                           8x-6 = 4x+2

                            8x-4x = 2+6

                            4x = 8

                              x = 8/4

                             x = 2

So , numerical length of JK = 3x

                                        JK = 3×2

                                         JK = 6

Hence , length of JK is 6

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The equation can be used to find the number of times Maria hiked each trail is 5x + 10y = 90

let

5x + 10y = 90

Therefore, the equation to represent the number of times Maria hiked each trail is 5x + 10y = 90

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Answer:

5x + 10y = 90

Step-by-step explanation:

x^2-12x+(6)^2 is correct answer

Answer:

-1, -4

Step-by-step explanation:

x + y = -5

x×y = 4

=>

x = -5 - y

=> (-5 - y) × y = 4

-5y - y² = 4

y² + 5y + 4 = 0

the solution for a quadratic equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

a = 1

b = 5

c = 4

x = (-5 ± sqrt(25 - 16))/2 = (-5 ± 3)/2

=> x = -2/2 = -1 or x = -8/2 = -4

=> y = 4/-1 = -4 or y = 4/-4 = -1

since the sequence in an addition and multiplication does not make any difference, the two numbers are simply -1 and -4

Answer:

C. [tex]y+4=-3(x-3)[/tex]

Step-by-step explanation:

The point-slope format is a way to represent the equation of a line. It involves using a point on the line and relating it to the slope in such a way that one can find any point on the line using the equation. One is asked to find the equation of a line in point-slope form. The general format for the point-slope form of a line is the following;

[tex]y-h=m(x-k)[/tex]

Where the point on the line that is being used is ([tex]h,k[/tex]). The parameter ([tex]m[/tex]) represents the slope or rate of change in the line. The slope is often referred to as the ([tex]\frac{rise}{run}[/tex]) and can be found using the following formula.

[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

Where ([tex]x_1,y_1[/tex]) and ([tex]x_2,y_2[/tex]) are points on the line. As one can see the following points can be found on the line:

[tex](3,-4), (0, 5)[/tex]

Substitute these points into the slope formula and solve for the slope;

[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

= [tex]\frac{(5)-(-4)}{(0)-(3)}[/tex]

= [tex]\frac{5+4}{0-3}\\[/tex]

= [tex]\frac{9}{-3}[/tex]

= [tex]-3[/tex]

Now substitute the slope into the given formula. As per the problem, one is supposed to use the point ([tex]3, -4[/tex]) in the formula.

[tex]y-h=m(x-k)[/tex]

Substitute the slope;

[tex]y-h=-3(x-k)[/tex]

Substitute the point;

[tex]y+4=-3(x-3)[/tex]

Answer:

40 months

Step-by-step explanation:

It will take Vanessa 40 months or 3 years and 4 months to repay the bank their loan amount(without interest ofc).

Answer:

Time = 42 months

Step-by-step explanation:

[tex]Monthly \ payment = [rate + \frac{rate}{(1 + rate)^{month}-1}] \times principal[/tex]

Monthly payment = 300

Principal = 12000

[tex]Rate \% = \frac{300}{12000} \times 100 = \frac{30}{12} = \frac{5}{2} = 2.5[/tex]

Substituting and solving Months = 42 months

Answer:

It's B

Step-by-step explanation:

Answer:

send wellthat questions again

Answer:

mean=6+8+8+9+9+10divided 6 =

Answer:

1.

Step-by-step explanation:

The mean score is (8+6+9+9+8+8)/ 6

= 48/8

= 8.

Deviations from the mean are 0 , -2, 1, 1, 0, 0

Squares of these deviations  are 0, 4, 1, 1, 0, 0

So the variance =  (0 + 4 + 1 + 1 + 0 + 0)/ 6 =  1

Standard deviation = √1 = 1.

Answer:

x=5.75 ; price of a single popcorn

y=2.25 ; price of a drink

system of equations

2*x+3*y= 18.25

4*x+2*y=27.50

Step-by-step explanation:

x= price of popcorn

y= price of drink

2*x+3*y= 18.25 ; this is information for Mohamed

4*x+2*y=27.50 ; this is informtion for miguel

solve an equation for y

2y=27.50-4x

y=13.75-2x

substitue into other equation

2*x+3(13.75-2x)=18.25

2*x+41.25-6x=18.25

-4x+41.25=18.25

-4x=-23

x=5.75 ; price of a single popcorn

swap x=5.75 into the other equation

4*5.75+2*y=27.50

2y=4.5

y=2.25 ; price of a drink

put back in to check work

2*5.75+3*2.25

11.5+6.75=18.25

Answer:

3/10

Step-by-step explanation:

Of means multiply

2/5 * 3/4

Rewriting

2/4 * 3/5

1/2*3/5

3/10

458 fishes

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The answer is in the picture. Click on it.

Answer:

8800 (Square Millimeters)

Answer:

Hello! answer: 10

Step-by-step explanation:

8 × 8 = 64

6 × 6 = 36

64 + 36 = 100

√100 = 10

10 × 10 = 100 therefore x = 10 hope that helps!

Answer:

2.5h^2 + 21h + 36

Step-by-step explanation:

Height = h

width = 2.5h

border = 3 in.

Overall height = h+6

Overall width = 2.5h+6

Overall area

= (h+6)(2.5h+6)

= 2.5h^2 + 15h + 6h +36

= 2.5h^2 + 21h + 36

Step-by-step explanation:

5(x-3) = 0

5x-15=0

5x=15

x=15/5

x=3

i think you added the dot after 5 by mistake so yes this is how i could solve

Answer:

0.25

Step-by-step explanation:

Hope it helps, sense it’s centered around 0.25 then the parameter would be 0.25

To It’s centered around 0.25 then the parameter would be 0.25.

We have given,

Suppose that many large samples were taken from a population and the sample proportion centered around 0.25

We have to determine which of the given is most likely the population parameter.

A sample means from any distribution. We could have a left-skewed or a right-skewed distribution.

To It’s centered around 0.25 then the parameter would be 0.25

Therefore option A(0.25) is correct

To It’s centered around 0.25 then the parameter would be 0.25.

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Answer:

angke R is 70

Step-by-step explanation:

opposite angle of a parallelogram are equal.

I.e. angle C = angle R = 70

Answer:

70

Step-by-step explanation:

In a parallelogram, (I) opposite angles are congruent.

(II) Adjacent angles are supplementary.

(III) Opposite sides are equal and parallel.

(Iv)  Diagonals bisect each other

Angle R and angle C are opposite angles as they don't share any  arm's(sides).

∠R = ∠C = 70

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Answer:

b

Step-by-step explanation:

Answer:

Step-by-step explanation:

2x-1>9

2x-1>9=0

2x-1=0-9

2x-1=-9

2x=-9+1

x=-8/2

x=-4

Answer:

i=3/4

Step-by-step explanation:

Assuming that we are treating "i" as a variable and not the constant "i":

12+2i-i=9i+6

12+i=9i+6

12=8i+6

6=8i

8i=6

i=6/8

i=3/4

Therefore, the equation has only one real solution which is i=3/4