In math class 20% of the students did not finish their quiz. If 24 students finished their quiz, how many students are in math class?

Kinetic energy is defined as the work required to accelerate a body of a given mass from rest to its stated speed. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes.

Mass - (Measured in Kilogram) - Mass is the amount of matter in a body, regardless of its volume or the forces acting on it.

Velocity - (Measured in Meters per Second) - Velocity is a vector quantity (has both magnitude and direction) and is the rate of change of an object's position with respect to time.

We have that the data is:

The formula to calculate kinetic energy is:

             Ec = m * v²/2

Since it only asks us to calculate the kinetic energy, it is not necessary to clear the formula.

[tex]\boldsymbol{\sf{Ec=\dfrac{158 \ kg*\left(0.42 \ \frac{m}{s}\right)^2 }{2} }}[/tex]

[tex]\boldsymbol{\sf{Ec=\dfrac{158 \ kg*0.1764 \ \frac{m^2}{s^2} }{2} }}[/tex]

[tex]\boldsymbol{\sf{Ec=13.9356 \ kg*\dfrac{m^2}{s^2} }}[/tex]

We work with the units, in this case with m^2 = m*m.

[tex]\boldsymbol{\sf{Ec=13.9356 \boxed{\boldsymbol{\sf{Kg*\frac{m}{s^2} }}}*m }}[/tex]

Newton's units are: Kg*m/s^2.

[tex]\boldsymbol{\sf{Ec=13.9356 \ N*m \longmapsto Joule \ units=N*m}}[/tex]

[tex]\boldsymbol{\sf{Ec=13.9356 \ J}}[/tex]

But if you need the rounded answer, then 13.94 Joules.

The speeds when converted are 29.648 km/h and 8.24 m/s

From the question, we have the following parameters that can be used in our computation:

Speed = 16 knots

Also, from the question, we have

1 nautical mile to be 1853 m

This means that

Speed = 16 * 1853 m per hour

Convert meters to kilometers

So, we have

Speed = 16 * 1.853 km per hour

Evaluate the products

Speed = 29.648 km/h

Also, we have

Speed = 16 * 1853 m per hour

Convert hour to seconds

So, we have

Speed = 16 * 1853/3600 m/s

Evaluate

Speed = 8.24 m/s

Hence, the speed in m/s is 8.24 m/s

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For every 1 orange in the fruit bowl there are three bananas.

According to the question,

We have the following information:

In the fruit bowl there are 12 bananas, 8 apples and 4 oranges.

Now, in order to find the number of bananas in this fruit bowl for 1 orange can be as written below:

4 oranges = 12 bananas

Now, to find the number of bananas for 1 orange, we will divide the total number of bananas by the number of oranges.

So, we have the following expression:

1 orange = 12/4 bananas

1 orange = 3 bananas

Hence, for every 1 orange in the fruit bowl there are three bananas.

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The sentence that represents this equation 8 3/4 = 17 - x is B) 8 3/4 is the same as 17 decreased by a number.

An equation is the statement that illustrates that the variables given. In this case, two or more components are taken into consideration to describe the scenario.

It is vital to note that an equation is a mathematical statement which is made up of two expressions that are connected by an equal sign.

In this case, 8 3/4 is the same as 17 decreased by a number will be 8 3/4=17−x.

Therefore, the correct option is B.

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Complete question

What sentence represents this equation?

8 3/4 = 17 - x

A) A number is the same as the difference of 17 and 8 3/4.

B) 8 3/4 is the same as 17 decreased by a number.

C) 17 decreased by 8 3/4 is the same as a number.

D) 8 3/4 is the same as a number decreased by 17.

Answer: 11.74

Step-by-step explanation:

4.33+4.33+1.54*1.54+11.74

A rectangle has two pairs of equal sides.

Answer:

[tex]y=-2x-1[/tex]

Step-by-step explanation:

If two lines are parallel, they have the same slope. In this case, it is -2

Using point-slope form, with a slope of -2 going to through point P(0,-1)
We have:

y+1=-2x

y = -2x - 1

:]

The cost of the sweater is $ 30 and

1 dollar = 17 pesos, $ 25 = 425 pesos and $ 3 dollar = 51 pesos.

Mathematical Operations are activities or mathematical processes used to solve given problems. The most used mathematical activities are adding, subtracting, multiplying, and dividing.

The basic operations and their symbols are given below
Addition (+); Subtraction (-); Division (÷);  and Multiplication (x).  

Here we have

Priya exchanged 250 dollars for 4250 pesos  

[Here we used division and multiplication to solve the problem ]

Then the value of 1 dollar in pesos = [tex]\frac{4250}{250}[/tex] = 17 pesos

⇒ 1 dollar = 17 pesos

⇒ 25 dollars = 25 × 17 = 425 pesos

⇒ 3 dollar = 3 × 17 = 51 pesos

Given the cost of the sweater = 510 pesos  

The cost of the sweater in pesos = [tex]\frac{250}{4250} \times510[/tex] = 30

Therefore,

The cost of the sweater is $ 30 and

1 dollar = 17 pesos, $ 25 = 425 pesos and $ 3 dollar = 51 pesos

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Answer:

$6

Step-by-step explanation:

5 x 0.20=1

5+1=6

a) A vertical stretch happens for values of a such that |a| > 1.

b) A vertical compression happens for values of a such that |a| > 0.

c) For a vertical stretch, the graph increases vertically, and for a vertical compression, the graph increases horizontally.

d) A reflection across the x-axis takes place when a < 0.

The definition of the quadratic function is given as follows:

f(x) = a(x - h)² + k.

The transformations to the function are given as follows:

Additionally, for a reflection over the x-axis, the function is multiplied by a negative number, hence:

a < 0.

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Answer: 51 ft

Step-by-step explanation:

This is a Similar Triangles problem (geometry)

Draw 2 triangles with the sides correctly labeled.

Set up your ratios

170/6 = x/1.8

Solve for x

28.3 = x/1.8

x = 51 ft (length of shadow cast by the lighthouse)

The polynomial of p(x) is  -24 (x² + 15x + 54) with the satisfying's conditions degree 3.

Given,

An nth degree polynomial p meets the requirements listed below:

p is of degree 3.

-9 is a zero, with multiplicity 2, of p.

-6 is a zero, with multiplicity 1, of p.

p(-1) = -960

We have to determine an nth degree polynomial that satisfier the conditions.

Let the polynomial be p(x) whose zero are -9 and -6

a be the coefficient.

p(x) = a (x+9) (x+6)

p(x) = a(x² + 6x + 9x + 54)

p(x) = a(x² + 15x + 54)

Now, take x = -1

p(-1) = a (-1² + 15 x -1 + 54)

-960 = a ( 1 - 15 + 54)

-960 = a x 40

a = -960/40

a = -24

We get,

p(x) = -24 (x+9) (x+6)

p(x)= -24 (x² + 15x + 54)

Therefore, the polynomial of p(x) is  -24 (x² + 15x + 54) with the satisfying's conditions degree 3.

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The series as represented in the task content is divergent and hence; diverges.

It follows from the task content that the series defined by the summation expression as represented above is to be identified as divergent or convergent.

It is noteworthy to know that;

If a sequence converges, it means that the limit of the sequence exists as n → ∞. Also, if the limit of the sequence as n → ∞ does not exist, Then, such series is said to diverges.

Therefore, by evaluation as the limit of the expression k sin²k / 1 + k³ as k → ∞ is; Undefined and hence does not exist.

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The gallons of water and premium antifreeze solution that must be mixed are equal to 60 gallons and 120 gallons respectively.

In order to calculate the gallons of water and premium antifreeze solution, we would assign variables to the gallons of water and premium 60% antifreeze that is required, and then translate the word problem into algebraic equation as follows:

Since the premium antifreeze solution contains 60% premium antifreeze, we have the following mathematical expression:

x + y = 180      ....equation 1.

0.60y = 0.40(180)    ....equation 2.

From equation 2, we have:

0.60y = 0.40(180)

0.60y = 72

y = 72/0.60

y = 120 gallons of premium antifreeze.

For the gallons of water, we have the following:

x + y = 180

x = 180 - y

x = 180 - 120

x = 60 gallons of water.

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Answer:The question is very brief, im not sure if i understand what your asking

Step-by-step explanation:

The number of attempts Vonna made is 80.

Given,

Vonna scored 48 goals in her scoccer kicking practice.

Her success to failure rate is 3:2

Vonna scored 48 goals" means that there were 40 successes,

= 48 goals

= 3:2

= 48:3

= 16

x = 6 positive integer

hence let 3x:2x

= 3(16) = 48

= 2(16) = 32

Total attempts = 48+32

= 80

Hence the total number of attempts Vonna made is 80.

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Answer:

x = 2

Step-by-step explanation:

8x - 6 = 10 ( add 6 to both sides )

8x = 16 ( divide both sides by 8 )

x = 2

Answer:

x = 2

Step-by-step explanation:

8x-6 = 10

8x-6+6 = 10+6

8x = 16

8x/8 = 16/8

x = 2

as you already know, to get the inverse of any expression we start off by doing a quick switcheroo on the variables and then solving for "y", let's do so.

[tex]\stackrel{f(x)}{y}~~ = ~~\cfrac{1}{x+8}\hspace{5em}\stackrel{\textit{quick switcheroo}}{x~~ = ~~\cfrac{1}{y+8}} \implies y+8=\cfrac{1}{x}\implies {\large \begin{array}{llll} \stackrel{f^{-1}(x)}{y}=\cfrac{1}{x}-8 \end{array}}[/tex]

The inequality of the scenario is 10000 ≤ l² - 16l < 16000 and the length is 1672 feet

The statements from the question are given as:

Shape = Rectangular park

Minimum perimeter = 5000 square ft

Maximum perimeter = Less than 8000 square ft

Also, we have

Width = 8 less than half the length

This means that

w = 1/2l - 8

The perimeter of a rectangle is

perimeter = 2 * (l + w)

So, we have

P = lw

This gives

P = 2 * (l + 1/2l - 8)

P = 2 * (1.5l - 8)

Open the brackets

P = 3l - 16

Substitute the known values in the above equation So, we have the following equation

5000 ≤ 3l - 16 < 8000

The above represents the inequality

See attachment for the graph

From the graph, we have the solution to be

l = 1672 (approximately)

Recall that:

w = 1/2l - 8

So, we have

w = 1/2 * 1672 - 8

Evaluate

w = 828

Hence, the possible length is 1672 ft

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The table to show the number of cups for the colors will be:

Red cups Blue cups

1. 8

2. 16

3. 24

Given that the person is making purple paint in the ratio of 2 cups blue paint to 1/4 cups of red paint.

Therefore, for every 1 cup of red paint, the number of blue paint will be:

= 2 ÷ 1/4

= 2 × 4

= 8 cups

Therefore, to get other values, you simply have to multiply by 8.

2 red paint will be:

= 2 × 8

= 16 blue cups.

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Answer:

C= 31in

Step-by-step explanation:

First you must know the circumference equation. The circumference equation is C=2πr, with r being the radius. Since we are given the radius, we will fill in the radius given for r. So then we will fill in and solve:

C=(2)(π)(5in)

C=(10)(π)

C=31.4in...

C=31in

Hope this helps!

The amount of the monthly payments is $368.34, and the total interest on the loan is $5,100.

The initial amount of money that we borrow is $17,000. We borrow this amount for a total of five years. The interest charged is 6%. We borrowed the money for the purchase of a car. We need to find the monthly payments and the total interest for the loan.

Let the total amount to be paid and the interest be denoted by the variables "A" and "I", respectively.

I = P*R*T

I = $17,000*0.06*5

I = $5,100

The total amount of money to be paid is the sum of the initial amount and the interest charged.

A = P + I

A = $17,000 + $5,100

A = $22,100

The total number of months in five years is 12*5 = 60.

The amount of the monthly payment is the ratio of the total amount to be paid to the total number of months.

M = $22,100/60

M = $368.34

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Based on the given parameters about a carpenter cutting the top section of a window frame, the side pieces of the frame are not parallel.

Parallel lines are lines which are equally distant from one another at all points.

To show that the side pieces of the frame are parallel:

The interior angles are equal in measure and the sum of the interior angles must be equal to 180°

The two given side pieces of the window frame are also equal in measure.

If the sum of both side angles is equal to 180∘, then, the sides are parallel.

37∘ + 50∘ = 87∘

2(37∘ + 50∘)

= 2(87∘)

= 174∘

Hence,

174∘ < 180∘

So therefore, the sides pieces of the window frame cut by the carpenter are not parallel.

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The probability that Rebecca's first flight was delayed is 75%.

Probability is the ratio or odds of an expected outcome occurring when there are many possible outcomes.

Probability is always a fractional value lying between 0 and 1.  When the expected outcome is certain, the probability is said to be one.  When it is uncertain, the probability is zero.

Like ratios, probability is depicted as decimals, fractions, or percentages when there is no 100% certainty or uncertainty.

The probability of Rebecca's first flight leaving on time = 0.25

The probability of Rebecca's first flight being delayed = 0.75 (1 - 0.25)

= 75%.

Thus, it is 75% likely that Rebecca's first flight will be delayed.

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Suppose you pick her up at the Denver airport and her luggage is not there. What is the probability that Rebecca​'s first flight was​ delayed?

They achieved 26.9 miles per gallon approximately with that car in this trip.

Given that the initial odometer reading is = 87236.2 miles

Final odometer reading after trip is = 87626.2 miles

So the distance of the total trip is = 87626.2-87236.2 = 390 miles

They used 14.5 gallons of gas on the tri[p.

So the mileage is = 390/14.5 = 26.9 miles per gallon approximately.

Their car achieved 26.9 miles per gallon approximately.

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Answer:

f

Step-by-step explanation:f

Answer:

y = 5x + 1

y = 5x + [tex]\frac{-3}{2}[/tex]

When the slopes are the same (5) the equations are parallel.

Step-by-step explanation:

You can look at the graph of the two equaions attached to see that there paralle.

2y - 10x +3 = 0  Add 10 to both sides of the equation

2y -3 = 10x  Add three to both sides of the equation

2y = 10x -3  Divide all the way through by 2

y = 5x + [tex]\frac{-3}{2}[/tex]

Answer:

Yes i the relationship linear,exponential,or neither

Answer: I think it’s the first one.

Step-by-step explanation:

Answer:

hope this helps!!!

Answer:

The answer to your question is,

7

Step-by-step explanation: