A play company is having two shows. In the morning show, chairs are set up in rows of 11 chairs. For the afternoon show, the number of chairs in each row was 4 more than the original number of rows. Then, 8 more rows are set up. If r represents the original number of rows set up for the morning show, which of the following functions will give the total number of chairs set up for the afternoon show?
A.
C(r) = r2 + 19r + 88

B.
C(r) = 11r2 + 88r

C.
C(r) = 15r2 + 120

D.
C(r) = r2 + 12r + 32

Answer:

2,228

Step-by-step explanation:

Each unit will make 13.25 in profit before incorporating the one time cost. This means that 29,521/13.25= the amount needed to break even.

The absolute error and the percent error of the police officer’s estimate will be 4.29%.

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

A cop is assessing the separation from one side of a road to the next. The genuine distance is 13.4 m. The cop's gauge is 14 m.

The absolute error and the percent error of the police officer’s estimate are calculated as,

%error = [(14 - 13.4) / 14] x 100

%error = (0.60 / 14) x 100

%error = 4.29%

The outright mistake and the percent blunder of the cop's gauge will be 4.29%.

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Answer:

  (a)  For every day that passes, a person drives 54 miles

Step-by-step explanation:

You want to know the situation in which one quantity changes relative to another at a constant rate.

The rate of change is described as 54 miles for each day. This is a constant rate of change. Miles relative to days are described by a linear function.

We assume the description means that the balance in the savings account increases by 1.5% with each passing month. While this interest rate is a constant, the amount by which the balance changes each month is not constant. The balance relative to time is described by an exponential function.

If the vine doubles in length twice a week, its length increases by 300% each week. As with savings, this growth rate is constant, but the amount of growth each week is not. The length of the vine is described by an exponential function.

As with savings, this growth rate is constant, but the amount of increase each year is not. The population is described by an exponential function.

The situation with a constant rate of change is ...

  For every day that passes, a person drives 54 miles.

__

Additional comment

When the quantity is graphed, the "rate of change" refers to the slope of the curve on the graph. The graph of an exponential growth function does not have a constant slope, but has a slope that increases exponentially.

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Using trigonometric ratio, the elevation of the car 15.2m

Trigonometric ratios can be defined as the values of all the trigonometric functions using the values of the ratio of sides in a right-angled triangle. The ratios of sides of a right-angled triangle with respect to it angle are known as the trigonometric ratios of that particular angle.

In this problem, to find the elevation of the car, we have to assume the angle of the car elevated makes a right angle triangle to the horizontal surface.

Data;

Using the tangent of the angle;

tan θ = opposite / adjacent

tan 10 = x / 86

x = 86tan10

x = 15.2m

The elevation of the car is approximately 15.2m

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Answer:

x ≥ 3

Step-by-step explanation:

5x-6≥9

put +6 on both sides to get rid of the -6

5x-6 +6 ≥ 9 +6

5x ≥ 15

x ≥ 3

Answer: x≥3

First, add 6 to both sides.

5x − 6 + 6 ≥ 9 + 6

5x ≥ 15

Then, Divide both sides by 5.

[tex]\frac{5x}{5} \geq \frac{15}{5}[/tex]

a) The mode is 2.

b) 32 Students were there altogether.

c) 15 dinners were served during the week.

d)The mean number of dinners is 2.5.

This refers to the value that appears most often in a set of data values.

What is mean?

This refers to the average of the given set of numbers. It is calculated by dividing the sum of given numbers by the total number of numbers.

Given in the question:

a)The number of school dinners 2 has a frequency of 12.

Hence, the mode is 2.

b) To calculate the number of students altogether, we add then frequencies

Total number of students = 0 + 8+ 12 + 6+ 4 + 2

Total number of students = 32

c) To get the number of dinners served during the week, we add the number of dinners together.

Number of  dinners served during the week= 0 + 1 + 2 + 3 + 4 + 5

Number of  dinners served during the week = 15

D) The mean number of dinners =

1+1+1+1+1+1+1+1+2+2+2+2+2+2+2+2+2+2+2+2+3+3+3+3+3+3+4+4+4+4+5+5

                                                32

The mean number of dinners = 80

                                                    32

The mean number of dinners = 2.5

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Answer:

$103

Step-by-step explanation:

In order to determine how much money Sonny has, we need to write a mathematical equation to solve for x. We know how much money Sonny and Allan each have in terms of x, and we can add the two expressions together to equal a total amount of $407. This will be represented and simplified as follows:

Now we can solve the equation for x.

We know that x is equal to 50, so we can plug it back into Sonny's expression to find out how much money she has.

We can check our work by solving for the amount of money Allan has and then adding up the two amounts to make sure the total is $407.

Answer: D. Neither function

Step-by-step explanation: f(x)=3 is a horizontal line to the x-axis, which means that the y-intercept is (0,3) and there is no x-intercept.

Answer: x = 14/5 or x = 2.8

Step-by-step explanation:

Step 1: Divide both sides of the equation by five: a common nonzero real number.

(5x)/5= 14/5

Step 2: Simplify

x = 14/5

The term permutation refers to a mathematical calculation of the number of ways a particular set can be arranged. Put simply, a permutation is a word that describes the number of ways things can be ordered or arranged. With permutations, the order of the arrangement matters.

There are 8 consonants in the word "Massachusetts" those are m,3s,c,h,2t

So there are 8 choices for the first letter and 7 choices for the second letter. There are 5 vowels in the word.

So there is 1 choice for the third letter. Therefore, there are a total of 8 * 7 * 1 = 56 permutations of the letters in "Massachusetts" with consonants in the first two positions and a vowel in the last.

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Answer: (x+1)(x+4)

Step-by-step explanation:

Step 1: Use the sum-product pattern

x^2 + 5x + 4

x^2 + 4x + x + 4

Step 2: Common factor from the two pairs

x(x+4) + x+4

Step 3: Rewrite in factored form

(x+1)(x+4)

The denominator of function is -x/2 - 1 and vertical asymptote  x = -2.

A vertical line that is not a part of the function's graph but serves as a guide is known as a vertical asymptote. Because it occurs at an x-value outside of the function's domain, the graph cannot cross it. There may be more than one vertical asymptote for a function.

Given graph

the function of graph is F(x) = [tex]2\frac{\left(-\frac{x}{2}\ +\ 1\right)}{\left(\frac{x^{2\ }}{4}-1\right)}[/tex] = 2(1- x/2)/(x²/4 - 1)

reducing the equation

F(x) = 2/(-x/2 - 1)

denominator is -x/2 - 1

for  vertical asymptote -x/2 - 1 = 0

x  = -2

Therefore for function is -x/2 - 1 and  vertical asymptote at x  = -2.

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Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

You want to find the effect of compounding 2% annual interest on $1000 at different intervals for a year. The intervals are ...

The attached calculator display shows the result:

The slope of the linear equation is a negative value, equal to -2.

The following is an example of a generic linear equation:

y = m*x + k

Where m represents the slope, and k represents the y-intercept of the equation.

If we know that the lie goes through two points (a, b) and (c, d), then the formula that describes the slope of the lie is as follows:

m = (d - b)/(c - a) (c - a)

Since we already know that the line traverses the points (0, 2) and (1, 0), we can calculate the slope as follows:

m = (0 - 2)/(1 - 0) = -2

Our investigation leads us to the conclusion that the slope of the linear equation is -2.

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Answer:

2

Step-by-step explanation:

I did it

Answer: < -6

Step-by-step explanation:

Answer:

No because x-coordinate 17 appears twice.

Step-by-step explanation:

In a function, no two ordered pairs can have the same x-coordinate.

Here, points (17, 2) and (17, 8) have 17 as the x-coordinate. Since the same x-coordinate, 17, is used more than once, this relation is not a function.

Answer:

Step-by-step explanation:

i need help

Answer: 9.8

Step-by-step explanation:

Answer: 12

Step-by-step explanation:

On average the 50 students need to raise $25 each.

What is average?

In plain English, an average is a single number chosen to represent a group of numbers; it is typically the sum of the numbers divided by the number of numbers in the group. The average of the numbers 2, 3, 4, 7, and 9 is, for instance, 5.

Given: Fifty students in the seventh grade are trying to raise at least $2,000 for sports supplies. They have already raised $750.

To find the number of students should each student raise, on average, in order to meet the goal.

Let, $2000 - $750 = $1250

So,

$1250/50 = 25

Hence, on average the 50 students need to raise $25 each.

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answer : 26

steps

get hypotenuse

a² + b² = c²

7² + 8² = c²

49 + 64 = c²

113 = c²

square root of c is √113 which 10.63

7 + 8 + 10.63 = 25.63

Answer:

1st one is 160,321

2nd one is 15,379

3rd one is 70,470

Step-by-step explanation:

63,274+ 97,047 = 160,321

41,805- 26,426 = 15,379

82,004-11,534 = 70,470

The side measures that could form a right triangle are B (24 in, 34 in, 28 in) and C (55 ft, 45 ft, 35 ft).

What is the right triangle is triangle?

A right triangle is a triangle in which one angle measures 90 degrees. The sides of a right triangle can be used to determine if a triangle is a right triangle using the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

Using this information, we can determine which of the given sets of side measures could form a right triangle:

A. 61 m, 60 m, 11 m: We can use the Pythagorean theorem to see if these sides could form a right triangle. We'll let the hypotenuse be the side with a length of 61 m, and the other two sides are the ones with lengths of 60 m and 11 m. Plugging these values into the Pythagorean theorem, we get:

(61 m)² = (60 m)² + (11 m)²

61² = 60² + 11²

61² ≠ 60² + 11²

Since the left side does not equal the right side, these sides cannot form a right triangle.

B. 24 in, 34 in, 28 in: Using the Pythagorean theorem, we can see that these sides could form a right triangle:

(34 in)² = (24 in)² + (28 in)²

34² = 24² + 28²

34² = 24² + 28²

The left side equals the right side, so these sides could form a right triangle.

C. 55 ft, 45 ft, 35 ft: Using the Pythagorean theorem, we can see that these sides could form a right triangle:

(55 ft)² = (45 ft)² + (35 ft)²

55² = 45² + 35²

55² = 45² + 35²

The left side equals the right side, so these sides could form a right triangle.

D. 48 cm, 46 cm, 15 cm: Using the Pythagorean theorem, we can see that these sides could not form a right triangle:

(48 cm)² ≠ (46 cm)² + (15 cm)²

48² ≠ 46² + 15²

Since the left side does not equal the right side, these sides cannot form a right triangle.

Hence, The side measures that could form a right triangle are B (24 in, 34 in, 28 in) and C (55 ft, 45 ft, 35 ft).

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The expected value for the given problem is E(x) = 1.4.

What is expected value?

The expected value is a generalization of the weighted average in probability theory. Informally, the expected value is the arithmetic mean of a significant number of outcomes of a random variable that were independently chosen.

A projected average value for an investment at some point in the future is known as the expected value (EV).

Investors use expected value to gauge an investment's merit, frequently in relation to how risky the investment is.

The formula for to find the expected value is given as,

E ( X ) = μ = ∑ x P ( x ) .

E(x) =  0*0.30 + 1*0.25 + 2*0.25 + 3*0.15 + 4*0.05

E(x) = 1.4

Hence, the expected value for the given problem is E(x) = 1.4.

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Only member B and D will reach their goal.

Given;

Amount to be saved = $285

Total time to save money = 5 weeks

Now,

For member A:

Working hours = 8 per week

per hour earnings = $6.15

Therefore,

The total amount collected

= working hours per week × Total weeks × Earning per hour

= 8 × 5 × 6.15

= $246

For member B:

Working hours = 10 per week

per hour earnings = $5.85

Therefore,

The total amount collected

= working hours per week × Total weeks × Earning per hours

= 10 × 5 × 5.85

= $292.5

For member C:

Working hours = 7 per week

per hour earnings = $7.25

Therefore,

The total amount collected

= working hours per week × Total weeks × Earning per hours

= 7 × 5 × $7.25

= $253.75

For member D:

Working hours = 9 per week

per hour earnings = $6.35

Therefore,

The total amount collected

= working hours per week × Total weeks × Earning per hours

= 9 × 5 × $6.35

= $285.75

Since, the amount earned by member B and D is greater than the goal amount and the amount earned by member A and C is less than the goal amount

therefore,

Only member B and D will reach their goal

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Your question is incomplete. Please find the missing content below:

To be able to go on the band trip, four band members each get a part-time job. Each person has 5 weeks in which to save his or her money. Analyze the four individual plans below and decide which of the four people will reach his or her goal of saving $285? Member A: Works 8 hours per week at $6.15 per hour Member B: Works 10 hours per week at $5.85 per hour Member C: Works 7 hours per week at $7.25 per hour Member D: Works 9 hours per week at $6.35 per hour

There are $21.5 money was spent on a pass and lunch for each student.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that:

The amount spent by school on pass of 40 students and 3 teachers = $546.53

And, the amount spent for the lunch only for students = $351.60

Now,

The money spent for pass of 43 person = $546.53

Then, The amount of pass for each person  = 546.53/43

                                = $12.71

Since, there are 40 student then amount of lunch for each students = ⇒ 351.60/40

⇒ $8.79

Therefore, amount of pass and lunch for each student = 12.71 + 8.79

                              = $21.5

Thus, $21.5 is the required answer.

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Answer:

A

Step-by-step explanation:

the the direction of the graph is increased that means slope of the graph is positive.

Calculation the variance and standard deviation of the discrete random variable is given by σ² = [tex]\frac{\sum\limits^n_1{(x_{i}-\bar{x}) } \,}{n-1}[/tex] and standard deviation is the square root of Variance 'σ' = [tex]\sqrt{\frac{\sum\limits^n_1{(x_{i}-\bar{x}) } \,}{n-1}}[/tex].

As given in the question,

Therefore , the variance and standard deviation of the discrete random variable is calculated with the help of the following formulas:

Variance 'σ²' = [tex]\frac{\sum\limits^n_1{(x_{i}-\bar{x}) } \,}{n-1}[/tex]  and standard deviation  'σ' = [tex]\sqrt{\frac{\sum\limits^n_1{(x_{i}-\bar{x}) } \,}{n-1}}[/tex].

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