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Answer:

  c  The first two hours cost $4, between two hours and six hours cost $2 per hour, and all hours after that cost $1.

Step-by-step explanation:

You want an interpretation of the graph that is a constant 4 up to x=2, has a slope of 2 for 2 ≤ x < 6, and a slope of 1 for x ≥ 6. The vertical axis is labeled dollars, and the horizontal axis is labeled hours.

The constant value of y = 4 for x < 2 means the cost of parking is $4 for the first two hours.

The slope of 2 from x=2 to x=6 means the cost of parking is $2 per hour between 2 and 6 hours.

The slope of 2 for x ≥ 6 means the cost of parking is $1 per hour for more than 6 hours.

The description of c applies.

__

Additional comment

The slope, or "unit rate", is the ratio of "rise" to "run". It can be simpler to choose a "run" of 1 and look at the corresponding "rise".

From x=2 to x=3, the cost rises from $4 to $6, a rise of 2 for the run of 1. That is why we say the slope is 2, or the "unit rate" in dollars per hour is $2 per hour.

By using linear inequation it can be calculated that-

The shaded region right of the y axis and above the x axis gives all possible solution.

The required linear inequation is

1310g + 20s < 900

What is linear inequation?

Inequation shows the comparision between two algebraic expressions by connecting the two algebraic expressions by >, <, ≥, ≤

A one degree inequation is known as linear inequation

Let the alloy has g ounces of gold and s ounces of silver

An ounce of gold costs $1310 and an ounce of silver costs $20.

Cost of the alloy should be less than $900

The required linear inequation is

1310g + 20s < 900

The graph has been attached

The shaded region right of the y axis and above the x axis gives all possible solution.

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Because AR = AQ, you have an isosceles triangle with triangle RAQ.  This also means ∠ARQ = ∠AQR.

You're also told that RT = QS, so this gives you SAS to show triangle ART = triangle  AQS.

   side: AR = AQ

   angle: ∠ART = ∠AQS

   side: TR = QS

Knowing that the two triangles are congruent gives you that the two top angles are also congruent.  

Answer:

No

Step-by-step explanation:

x > -9y-3/7 (Solve for X)

_____________________________________________________

y > -7x/9 - 1/3 (Solve for Y)

_____________________________________________________

Therefore, (-3, 2) is not a solution.

According to the given information The 50 child tickets and 64 adult tickets were sold that day.

The area of mathematics concerned with the characteristics and use of numbers a field of study that concentrates on multiplying, dividing, adding, and subtracting numbers. Mathematical simplifications are made using fractions, decimals, percentages, fractions, square roots, exponents, and other arithmetic operations.

child admission (c)= $5.70

adult admission (a)= $9.80

5.70c + 9.80a = 912.20      (i)

a + c = 114                            (ii)

Set up the equation:

5.70(114 - a) + 9.80a = 912.20

649.8 - 5.7a + 9.80a = 912.20

4.1a = 262.4

a = 64

adult tickets = 64  

Put the value of a in equation (ii) we get,

64 + c = 114

c = 114 - 64

c = 50

child tickets = 50

Therefore , the 50 child tickets and 64 adult tickets were sold that day.

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1. The volume of the cylinder is 942 m³.

2. The volume of the cone is 33.16 mm.

3. The volume of the sphere is 33.50 in³.

4. The volume of the cuboid is 672 in³.

Volume is defined as how much of a three-dimensional object occupies

a space.

We know the volume of a cylinder is πr²h.

∴ The volume of the given cylinder is = π(5)²×12 m³ = 942 m³.

We know the volume of a cone is = (1/3)πr²h.

∴ The volume of the given cone is = (1/3)π(2)²×8 mm³ = 33.16 mm.

We know the volume of a sphere is (4/3)π×r³.

∴ The volume of the given sphere is = (4/3)×π×(r³) in³ = 33.50 in³.

We know the volume of a cuboid is = (length×width×height).

∴ The volume of the given cuboid is = (7×8×12) in³ = 672 in³.

The volume of the object in figure 8 is the sum of the volume of a cuboid and a pyramid.

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Answer:

the answer is 5

Step-by-step explanation:

(Add 10r to both sides)

-7-7r+10r= 8

Then -7+3r = 8

(Add 7 to both sides)

3r = 8+7

3r = 15

Divide both sides by 3.

r = 5

The expression which defines the nth term of the given sequence, in terms of n as required in the task content is; T (n) = 1 + 7(n - 1).

It follows from the task content that the expression which represents the nth term of the given sequence be determined.

According to the task content, the first term, a of the sequence is; 1.

Also, since; 8 - 1 = 15 - 8 = 22 - 15 = 29 - 22 = Common difference, d = 7.

Consequently, the required expression is an arithmetic sequence which can be modelled by;

T (n) = a + d (n - 1)

Since the constant common difference of consecutive terms in the sequence is; 7,

Ultimately, The required expression for the nth term of the expression is;

nth = 1 + 7(n -1)

On this note, the nth term of the arithmetic sequence is given by the expression; T (n) = 1 + 7 (n -1).

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Answer:

x = -3

Step-by-step explanation:

If you look at the graph.

x = 4 is a vertical line.  

Another vertical line that would be parallel to this can contain the point (-3, 7) would be the line x = -3

Answer:

24*X or 24X

Step-by-step explanation:

24X or 24*X or 24 multiplied by X days

The variable "X" represents the number of days.

a) The hypotheses for this study would be the Null hypothesis and Alternative hypothesis.

b) The completed ANOVA summary table would be the Sum of Squares.

c) The calculator would give a p-value of approximately 0.03.

d) The results of the ANOVA test may not be reliable.

(a) The hypotheses for this study would be:

Null hypothesis ([tex]H_0[/tex]): There is no difference in the average lifetime of the four types of batteries.

Alternative hypothesis ([tex]H_1[/tex]): There is a difference in the average lifetime of the four types of batteries.

(b) The completed ANOVA summary table would be:

Sum of Squares (SS) df Mean Squares (MS) F

Between (Factor) 25.7375 3 8.578 3.77

Within (Error) 75 56 1.34

Total 100 59

(c) To find the p-value, you would use the Fcdf function on your calculator. The syntax for this would be Fcdf(F, 10000, df Between, df Within). In this case, the F value is 3.77, the df Between is 3, and the df Within is 56. Plugging these values into the calculator would give a p-value of approximately 0.03.

(d) Based on the p-value, we can reject the null hypothesis and conclude that there is a significant difference in the average lifetime of the four types of batteries. This suggests that the type of battery has an effect on its lifetime. However, it is important to note that this conclusion is based on the assumptions of the ANOVA test, including the assumption of equal variances among the groups. If these assumptions are not met, the results of the ANOVA test may not be reliable.

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The solution to the parallel lines identification and congruency are;

1) They are not parallel.

2) They are not congruent.

3) They are not congruent.

Parallel lines are defined as lines in a plane that are always the same distance apart. Parallel lines never intersect.

1) Looking at lines m and n , for them to be parallel, it means that they must be the same width all through. However, we see that along the x-axis they are 6 units while going further down, it is not always 6 units as some are 5.5 units. Thus, they are not parallel.

2) No, m is not congruent to p because it is not the same distance from the x and y-axis at similar points.

3) No, n cannot be congruent to p because we see that the distance between the marked points are not congruent.

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Hence, the point on the ray is [tex]x > 2[/tex].

What is the number line?

A number line is a visual representation of numbers on a straight line. This line is used to compare numbers that are placed at equal intervals on an infinite line that extends on both sides

Here given that,

Use the number line to represent the solution to [tex]x + 3 > 5.[/tex]

i.e.,

[tex]x+3 > 5\\\\x > 5-3\\\\x > 2[/tex]

Hence, the point on the ray is [tex]x > 2[/tex].

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{y:y is an integer AND y>10} is a set of integers that are greater than 10. Some examples of elements that would be included in this set are 11, 12, 13, 14, and so on.

The equation of inequality for the given graph will be;

⇒ y < - 4/3x + 5

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

The graph is shown in figure.

Now,

Take two points on the graph as;

⇒ (0, 5) and (3, 1)

Hence, The equation of line will be;

⇒ y - 5 = (1 - 5) / (3 - 0)  (x - 0)

⇒ y - 5 = - 4/3x

⇒ y = - 4/3x  + 5

Since, The inequality is shown in figure.

Hence, We get;

⇒ y < - 4/3x + 5

Thus, The equation of inequality for the given graph will be;

⇒ y < - 4/3x + 5

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Answer:

each girl scored 9 points

each boy scored 7 points

Step-by-step explanation:

41-13=28

28/2=14

14 is the number scored by boys

14/2

one boy scored 7 points

14+13=27

27 is the number scored by girls

27/3=9

each girl scored 9 points

Answer:

Below

Step-by-step explanation:

y = - x^2 + 5       solve for x

y-5 = - x^2

x^2 = 5-y

x = ± sqrt (5-y)        now switch the x's and y's

y = ± sqrt(5-x)    

Here is a picture:

The required percent of the coffee left is given as 66.67%.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,
24 ounces of coffee Ms. Bobadilla,
And 8 ounces of coffee has been drinking,
Applying the percentage evaluation, in order to calculate the remaining coffee to Ms. Bobadilla.
Percentage of coffee remaining = 24 - 8 / 24 × 100%
Percentage of coffee remaining = 0.6667 × 100%
Percentage of coffee remaining = 66.67%

Thus, the percentage is given as 66.67%.

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The mathematical model that gives the stopping distance d in terms of speed v is

d = 1/(40 x 5280²) v²

The stopping distance when v is 59 miles per hour is 87.03 feet.

Speed is the ratio of distance and time.

It shows how fast an object is moving at a given time.

We have,

The stopping distance d is directly proportional to the square of the speed v.

This can be written as,

d ∝ v²

Now,

Converting 40 miles into feet.

1 mile = 5280 feet

40 miles = 40 x  5280 feet

40 miles = 211200 feet

Now,

40 feet ∝ 211200 feet per

Now,

The stopping distance is 40 feet when the speed is 40 miles per hour

d = 40 and v = (40 x 5280) feet per hour

d = k v²

k = d/v²

k = 40/(40 x 5280)²

k = 1/(40 x 5280²)

The mathematical model that gives the stopping distance d in terms of speed v is

d = 1/(40 x 5280²) v²

The stopping distance when v is 59 miles per hour

v = (59 x 5280) feet per hour

d = 1/(40 x 5280²) x (59 x 5280)²

d = (59 x 59) / 40

d = 87.03 feet

Thus,

The mathematical model that gives the stopping distance d in terms of speed v is

d = 1/(40 x 5280²) v²

The stopping distance when v is 59 miles per hour is 87.03 feet.

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Answer:

When the plane is 2mi away from the radar station, its distance's increase rate is approximately 433mi/h.

Step-by-step explanation:

Sketch a right triangle with one leg going vertically a length of 3 miles above the station, and the other leg x going horizontally from the top of the first leg. Distance r from plane to station is related by r2 = x2 + 32. Differentiate: 2r dr/dt = 2x dx/dt, which rearranges to the desired dr/dt = x/r dx/dt. When r = 4, x2 = 42 - 9 and x = √7. So dr/dt = (√7 / 4) * 520 mph = 344 mph.

Answer:

Maria can buy at most 2 bottles of cranberry juice and 7 lemon-lime soda bottles.

Step-by-step explanation:

For this problem, we can set up an algebraic expression to represent the price, and this will help us solve the problem.

So firstly, let's assign the number of cranberry juice bottles to the variable  "C". We could technically represent this as the variable name "cranberry juice bottles", but "C" is a bit more easier to write when writing an algebraic expression while still making it easy to distinguish. Let's also assign the number of lemon-lime soda to the variable "L".

Now let's find a way to express the price of each. The price of buying a certain amount of items, can generally be expressed as: [tex](\text{items bought})*(\text{item price})[/tex], since you have to pay the item price for each item bought, also known as, multiplication.

Since we know that the price of a cranberry juice bottle is $3.80 then that means the total amount used towards cranberry juice can be expressed as: [tex]3.80C[/tex]. We're just multiplying the number of cranberry juice bottles times the price. Likewise, we can represent the total amount used towards lemon-lime soda as: [tex]1.40L[/tex]. The same logic is being applied here.

Now if we add both of these, we get the total amount that will be spent which is: [tex]3.80C + 1.40L = T[/tex], and in this case I just set it equal to "T" which just represents the total spent.

Now there's two more things to do. Generally we can't really solve two-variable equations and we want to express one variable in terms of the other, so that we can rewrite the equation as a one-variable equation.

There is one piece of information given that allows us to do this. "The recipe calls for 3.5 times as many bottles of lemon-lime soda as cranberry". So we can represent the numbers of lemon-lime soda bottles as 3.5 times the amount of cranberry juice bottles. We can express it as: [tex]L=3.5C[/tex]

So now let's plug this into the equation, instead of "L". This gives us: [tex]3.80C + 1.40(3.5C) = T[/tex]

let's multiply the 1.40 by the 3

[tex]3.80C + 4.9C= T[/tex]

now let's add up the values.

[tex]8.7C=T[/tex]

Now lastly, this represents the total amount that is going to be spent. Since Maria only has $17.40, we want this total to be less than or equal to 17.40 (assuming there is no sales tax, but this was never given). this gives us our final expression we will be using: [tex]8.7C\le 17.40[/tex]

From here solving the problem is actually pretty easy. Think of the inequality as a linear equation, we can still apply the same (for the most part) algebraic manipulations we apply to linear equations. We just divide both sides by 8.7 to isolate the C

[tex]\frac{8.7C}{8.7}\le\frac{17.40}{8.7}\\\\C\le 2[/tex]

So Maria can buy a maximum of 2 bottles of cranberry juice. From this we can actually determine the number of lemon-lime soda bottles.

So we know that:

[tex]C=2[/tex]

From this we can determine what L is, since remember the equation we set up earlier?

[tex]L = 3.5C[/tex]

Let's just plug C into the equation, and we get:

[tex]L=3.5(2)[/tex]

Multiply

[tex]L=7[/tex]

So Maria can buy at most 2 bottles of cranberry juice and 7 lemon-lime soda bottles.

Answer:

------------------------------

Equation of line:

Given values can be interpreted as pairs of coordinates of the two points:

Find the slope of the line:

Find the y-intercept, by substituting coordinates of one point:

The equation becomes:

Find the value of y when x = 22:

The length of the JU would be 60 units.

What is the Basic Proportionality Theorem?

The basic Proportionality Theorem (can be abbreviated as BPT) states that, if a line is parallel to a side of a triangle that intersects the other sides into two distinct points, then the line divides those sides in proportion.

In the given figure side TU is parallel to side LK

If JK = 64 and JU = -4 + 4x

then UK = JK - JU

              = 64 - (-4 + 4x)

               =68 - 4x

Similarly,if JL = 72 and JT = 27

then TL = JL - JT

             = 72 - 27

             = 45

Now by using the property of the basic proportionality theorem, we can write

              [tex]\frac{JT}{TL} =\frac{JU}{UK}\\\\ \frac{27}{45} =\frac{-4+4x}{68 - 4x}\\\\\frac{3}{5} = \frac{-4+4x}{68 - 4x}\\\\3(68-4x) = 5(-4+4x)\\\\204 - 12x=-20+2x\\\\204+20=14x\\\\x=\frac{224}{14}\\\\x=16[/tex]

Now we can calculate the length of JU = -4 + 4x

                                                                 = -4 + 4(16)

                                                                 = -4 + 64 = 60

Hence, the length of the JU would be 60 units.

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A sampling method is simple random sampling.

In statistical analysis, sampling is the procedure by which researchers choose a specific number of observations from a larger population. The sample strategy will depend on the sort of study being done, although it may involve systematic sampling or just plain random sampling.

A selection of participants from a population are chosen at random by the researcher using simple random sampling, a sort of probability sampling. Every person in the population has the same probability of getting chosen. Then, data are gathered from as much of this randomly selected subgroup as feasible.

Since it only uses one random pick and is very simple, this method is the easiest of all the probability sampling techniques.

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X = 63°

W = 60°

Y = 57° are  the measure of each angle in triangle.

In math, what is a triangle?

A triangle is a 3-sided polygon that is occasionally (though not frequently) referred to as the trigon. There are three sides and three angles in every triangle, some of which may be the same.

W = X - 10

Y = X - 14

X + W + Y = 180    substitute

X + (X - 10) + ( X - 14)

  = 3 X - 24 = 180

3X = 180 + 24.

 X = 204/3

X =  68

W =  58

Y =  54

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Brielle uses 1/3 of a cup of nuts for 1 cup of oatmeal.

What is unitary method?

The unitary method is a process of finding the value of a single unit, and based on this value finding the required solution.

According to the given question:

Brielle uses 2/3 cup of nuts for every 2 cups of oatmeal to make granola bars.

To find the fraction cup of nuts required for 1 cup of oatmeal, using unitary method

2 cups ----- 2/3 cup of nuts

1 cup ------- [tex]\frac{2/3}{2}[/tex] cup of nuts = 1/3 cup of nuts

Therefore Brielle uses 1/3 of a cup of nuts for 1 cup of oatmeal.

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Answer: He sold 19/40 of his pies or 0.475% of his pies

Step-by-step explanation: There are 40 total slices of pie and if he sold 19, then the fraction is 19/40. Additionally the fraction 19/40 as a decimal is 0.475 so it would be 0.475% of the pies.

The value of [tex]\angle[/tex]ABC=6° was found with the help of the law of cosines.

What is the law of cosines of a triangle?

The lengths of a triangle's sides are correlated with the cosine of one of its angles according to the law of cosines. We can now determine values for distances and angles that are impossible to measure without the aid of trigonometry. When calculating the third side of a triangle given two sides and their enclosed angle, as well as when calculating the angles of a triangle if we know all three sides, the law of cosines is used.

Given values are AB = c = 36 units, BC = a = 42 units, and [tex]\angle[/tex]BCA = 31°.

Now let AB = b, we find b using the law of cosines and quadratic equation:

[tex]c^2 = a^2 + b^2 - 2a b \cos C \\36^2 = 42^2 + b^2 - 2 \cdot \ 42 \cdot \ b \cdot \ \cos 31\degree \\ b > 0 \\ b = 7.22[/tex]

Now, we calculate [tex]\angle[/tex]ABC using the law of cosines:

[tex]\angle ABC=arc cos(\frac{a^{2}+c^{2}-b^{2} }{2ac}) \\\angle ABC=arc cos(\frac{42^{2}+36^{2}-7.22^{2} }{2.42.36}) \\\angle ABC=5.55[/tex]

[tex]\angle[/tex]ABC=6°

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