1. The p-value was slightly above conventional threshold, but was described as “rapidly approaching significance” (i.e., p =.06). An independent samples t test was used to determine whether student satisfaction levels in a quantitative reasoning course differed between the traditional classroom and on-line environments. The samples consisted of students in four face-to-face classes at a traditional state university (n = 65) and four online classes offered at the same university (n = 69). Students reported their level of satisfaction on a fivepoint scale, with higher values indicating higher levels of satisfaction. Since the study was exploratory in nature, levels of significance were relaxed to the .10 level. The test was significant t(132) = 1.8, p = .074, wherein students in the face-to-face class reported lower levels of satisfaction (M = 3.39, SD = 1.8) than did those in the online sections (M = 3.89, SD = 1.4). We therefore conclude that on average, students in online quantitative reasoning classes have higher levels of satisfaction. The results of this study are significant because they provide educators with evidence of what medium works better in producing quantitatively knowledgeable practitioners.

The answer is right angle with leg 3 and 8.

To use the box method to find the area of the parallelogram, we need to divide it into two triangles. One possible way to do this is by drawing a diagonal from (5, 17) to (18, 9), and creating two triangles with vertices (5, 17), (10, 20), and (18, 9), and (5, 17), (13, 6), and (18, 9).

The length of the diagonal can be found using the distance formula:

d = √[(18 - 5)^2 + (9 - 17)^2]

d = √[(13)^2 + (-8)^2]

d = √(169 + 64)

d = √233

Now, the area of the parallelogram is equal to the product of the length of the diagonal and half the height of the parallelogram. One of the cutouts from the box method will be a right triangle with legs equal to half the height and half the length of the diagonal.

Half the height can be found by taking the difference in y-coordinates between (5, 17) and (18, 9) and dividing by 2:

h = (17 - 9)/2

h = 4

Half the length of the diagonal is:

l = √233/2

Using these values, we can check each of the given right triangles to see which one matches the dimensions of the cutout:

A right triangle with legs 5 and 17 does not match, since the legs should be half the diagonal and half the height.

A right triangle with legs 5 and 8 does not match, since the legs should be half the diagonal and half the height.

A right triangle with legs 8 and 11 does not match, since the legs are not proportional to the dimensions of the parallelogram.

A right triangle with legs 3 and 8 matches, since half the diagonal is approximately 7.66 and half the height is 4, and 3 and 8 are proportional to these values.

Therefore, the correct answer is the right triangle with legs of 3 and 8.

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Answer:

its the middle one ( 8,11)

Step-by-step explanation:

Answer:

Area of the parallelogram = 120 square units

Area of the triangle = 17.5 square units

Area of the trapezoid = 372 square units

Step-by-step explanation:

The first polygon is a parallelogram with a base of 15 units and a height of 8 units.

[tex]\begin{aligned}\sf Area\;of\;a\;parallelogram&=\sf base \times height\\&=\sf 15 \times 8\\&=\sf 120\;square\;units\end{aligned}[/tex]

Therefore, the area of the parallelogram is 120 square units.

[tex]\hrulefill[/tex]

The second polygon is a triangle with a base of 5 units and a height of 7 units.

[tex]\begin{aligned}\sf Area\;of\;a\;triangle&=\sf \dfrac{1}{2} \times base \times height\\\\&=\sf \dfrac{1}{2} \times 5 \times 7\\\\&=\sf 17.5\;square\;units\end{aligned}[/tex]

Therefore, the area of the triangle is 17.5 square units.

[tex]\hrulefill[/tex]

The third polygon is a trapezoid with bases of 7 units and 24 units, and a height of 24 units.

[tex]\begin{aligned}\sf Area\;of\;a\;trapezoid&=\sf \dfrac{sum\;of\;bases}{2} \times height\\\\&=\sf \dfrac{7+24}{2} \times 24\\\\&=\sf \dfrac{31}{2}\times 24\\\\&=\sf 372\;square\;units\end{aligned}[/tex]

Therefore, the area of the trapezoid is 372 square units.

Answer:

see below

Step-by-step explanation:

To find:-

Answer:-

There are three polygons viz parallelogram, triangle and a trapezium. To find out the areas we can use the following formulae :-

Area of triangle :-

Area of parallelogram:-

Area of trapezium:-

Now we may use the above formulae as ,

Area of the given parallelogram:-

→ A = base * height

→ A = * 15 * 8

→ A = 120units²

Area of the given triangle:-

→ A = 1/2 * b * h

→ A = 1/2 * 5 * 7

→ A = 17.5 units²

Area of the given trapezium:-

→ A = 1/2 * sum of || sides* distance between them

→ A = 1/2 * (7+24) * 24

→ A = 12 * 31

→ A = 372 units ²

This is our required answers .

(A)  the annual rate of change between 1992 and 2006 was 0.0804

(B) r = 0.0804 * 100% = 8.04%

(C) value in 2009 = $11,650

What is the rate of change?

The rate of change is a mathematical concept that measures how much one quantity changes with respect to a change in another quantity. It is the ratio of the change in the output value of a function to the change in the input value of the function. It describes how fast or slow a variable is changing over time or distance.

A) The initial value is $44,000 and the final value is $15,000. The time elapsed is 2006 - 1992 = 14 years.

Using the formula for an annual rate of change (r):

final value = initial value * [tex](1 - r)^t[/tex]

where t is the number of years and r is the annual rate of change expressed as a decimal.

Substituting the given values, we get:

$15,000 = $44,000 * (1 - r)¹⁴

Solving for r, we get:

r = 0.0804

So, the annual rate of change between 1992 and 2006 was 0.0804 or approximately 0.0804.

B) To express the rate of change in percentage form, we need to multiply by 100 and add a percent sign:

r = 0.0804 * 100% = 8.04%

C) Assuming the car value continues to drop by the same percentage, we can use the same formula as before to find the value in the year 2009. The time elapsed from 2006 to 2009 is 3 years.

Substituting the known values, we get:

value in 2009 = $15,000 * (1 - 0.0804)³

value in 2009 = $11,628.40

Rounding to the nearest $50, we get:

value in 2009 = $11,650

Hence, (A) the annual rate of change between 1992 and 2006 was 0.0804

(B) r = 0.0804 * 100% = 8.04%

(C) value in 2009 = $11,650

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Buying a car for $2,500 in 1960 would be like buying a car for $539.23 in 2004 dollars .we can solve by using formula by substituting all details along with consumer price index

what is consumer price index ?

The Consumer Price Index (CPI) is a measure of the average change over time in the prices paid by urban consumers for a basket of goods and services. The CPI is often used as an indicator of inflation

In the given question,

To compare the dollar amounts over time, we can use the formula V = (A/S) x (C/C'), where:

V = the current value of the old dollar amount

A = the old dollar amount ($2,500 in this case)

S = the starting year's consumer price index (CPI) for the old dollar amount (1960 CPI)

C = the converting year's CPI (2004 CPI)

C' = the starting year's CPI for the converting year (1960 CPI)

Using the formula, we can calculate the current value of $2,500 in 1960 dollars as:

V = (A/S) x (C/C')

V = (2,500/29.6) x (188.9/29.6)

V = 84.46 x 6.380

V = $539.23

Therefore, buying a car for $2,500 in 1960 would be like buying a car for $539.23 in 2004 dollars.

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Answer:

Assuming that the dry cleaners, restaurant, and gift shop are all located on a grid, we need to know how many grid lines Pamela crossed to determine how far she walked. Without that information, it's impossible to calculate the distance.

The lateral area οf a cylinder is calculated as L = 2rh, where r is the radius οf the base and h is the height οf the cylinder.

In several current branches οf geοmetry and tοpοlοgy, a cylinder can alsο be defined as an infinitely curvilinear surface. There is sοme ambiguity in terminοlοgy due tο the change in the basic meaning οf the wοrds—sοlid versus surface (as in ball and sphere).

By cοmparing sοlid cylinders and cylindrical surfaces, the twο ideas can be separated. Bοth οf these οr a mοre specialised οbject, the right circular cylinder, may be referred tο simply as "cylinder" in literary wοrks.

First, we must calculate the radius οf the cylinder, which is half its diameter.

Sο the radius is 14/2 = 7 meters.

Then, we can plug in the values we have intο the fοrmula: L = 2 × 3.14 × 7 × 13 ≈ 572 square meters.

Therefοre, the answer is A) 572 square meters, rοunded tο the nearest square meter.

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Answer:

60°

Step-by-step explanation:

it's one half of an equilateral triangle, all sides equal and angles congruent, sum is 180°, divide by three and you have 60° which is your answer.

Answer:

WX=43

Step-by-step explanation:

VY=5y-2

VW=4y

WX=5y-2

YX=4y

VY=a

VW=b

WX=c

YX=d

a+b+c+d=18y-4

P=18y-4

158=18y-4

162=18y

y=9

WX=45-2

WX=43

After answering the presented question, we can conclude that As a equation result, the turkey's temperature after 45 minutes is roughly 134.43 Fahrenheit.

In mathematics, an equation is a statement that states the equality of two expressions. An equation consists of two sides separated by an algebraic equation (=). The argument "[tex]2x + 3 = 9,[/tex]" for example, states that the sentence "[tex]2x + 3[/tex]" equals the value "9." The goal of solving equations is to find the value or values of the variable(s) that will allow the equation to be true. Equations can be simple or complex, linear or nonlinear, and contain one or more parts. In the equation "[tex]x2 + 2x - 3 = 0[/tex]," the variable x is raised to the second power. Lines are used in many areas of mathematics, including algebra, calculus, and geometry.

a. [tex]dT/dt=-k(T-Ts)[/tex]

  [tex]-kdt=(DT/(T-Ts)[/tex][tex])[/tex]

When both sides are combined, the following results:

[tex]-kt + C = ln|T - Ts|[/tex]

where C is the integration constant. To calculate C, we can start with the assumption that the turkey is 185 degrees Fahrenheit when it comes out of the oven:

[tex]ln|185 - 75| = -k(0) + C[/tex]

[tex]C = ln(110) (110)[/tex]

As a result, the equation relating the temperature of the turkey to time is:

[tex]-kt+In|T-75|=-kt+In(110)[/tex]

[tex]T=e(-ktIn(110)+75[/tex]

[tex]T=110e(-0.5k)+75[/tex]

[tex]T=110e(-0.75k+75 T134.43[/tex] degrees Fahrenheit

As a result, the turkey's temperature after 45 minutes is roughly 134.43 Fahrenheit.

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The cost of the 2.5 points is $5,000.

The cost of the points is based on the loan amount, which is the sale price minus the down payment:

Loan amount = $255,000 - $55,000 = $200,000

Points are typically calculated as a percentage of the loan amount. In this case, the Nicols are paying 2.5 points, which means they are paying 2.5% of the loan amount.

Cost of points = 2.5% of $200,000 = $5,000

Therefore, the cost of the 2.5 points is $5,000.

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Maker spent $48,000 on a brand-new rolling press. Its value has decreased at a pace of 18% per two years. Seven years after the initial purchase, the rolling press is worth $18,687.53.

We can solve this problem by using the formula for exponential decay:

V = [tex]P * (1 - r)^n[/tex]

where V is the value of the rolling press after n years, P is the initial purchase price, r is the depreciation rate per period, and n is the number of periods.

In this case, we have:

P = $48,000 (the initial purchase price)

r = 18% every 2 years = 0.09 per year (since there are 2 two-year periods in 1 year)

n = 7 years (the number of years that have passed)

These values are entered into the formula to produce the following results:

V = [tex]$48,000 * (1 - 0.09)^7[/tex]

V ≈ $18,687.53

Hence, seven years after the original purchase, the rolling press is now worth roughly $18,687.53.

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The probability that a particular bulb will last from 2772 to 3298 hours is 2.66.

In mathematics, the term average is referred to as the mean value, which is equal to the ratio of the sum of all the values in a given set to all the values in the set.

Here we have been given,

A brand of lightbulb lasts on average 2821 hours with a standard deviation of 197 hours.

Assuming the life of the lightbulb is normally distributed, and we need to find the probability that a particular bulb will last from 2772 to 3298 hours.

According to the given problem, we know that the value of the following is defined as follows:

Average = 2821

Standard deviation = 197

Now, based on the z score concept, the value of the required probability is calculated as,

=> z = (x-mean)/ sd

=> z lower = (2821 - 3298)/197= -2.42

=> z upper = (2821- 2772)/197= 0.24

Therefore, the probability is calculated as,

=> z upper - z lower

=> 0.24 - (-2.42)

=> 2.66

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Answer:       10% chance / 10/100

Step-by-step explanation:

Convert it so that when you add all the numbers they will equal 100

4+6+3+5+2=20  make it so it equals 100=

*5

20+30+15+25+10 = 100

10%=brown

The total interest paid by him to the bank would be: Rs. 28,500. Ram should have waited for 3 years, to start his business without borrowing extra loan, until the age of 19.

What is an interest?

Let the sum deposited by Ram at the age of 16 be x.

After compounding for n years, the balance becomes x(1.1)^n.

As per the given condition, we have:

x*[tex](1.1)^{n}[/tex] = 121x

[tex](1.1)^{n}[/tex] = 121

n = 2

So, after two years, Ram's balance became 121 times the initial principal.

After this, he deposited 1/4 of the existing balance, i.e. 1/4 * 121x = 30.25x

After one year of this deposit, the balance becomes 30.25x * 1.2 = 36.3x

So, Ram's total balance at the age of 19 becomes 121x + 36.3x = 157.3x

This is given to be Rs. 359 less than thrice of the initial principal, i.e.

157.3x = 3x - 359

Solving this equation, we get:

x = Rs. 480

So, the sum deposited by Ram at the age of 16 was Rs. 480.

Now, he borrowed Rs. 1,10,000 at 15% p.a. compounded annually.

The interest for the first year would be (15/100) * 1,10,000 = Rs. 16,500

After paying this interest, the remaining balance becomes:

1,10,000 + 16,500 = Rs. 1,26,500

Now, he cleared his debt by paying equal installments in the next 2 years and 1 year.

Let the equal installment be x.

So, the balance after the first year becomes:

1.15x + (1.15)²x + (1.15)³x - x = 1,26,500

Solving this equation, we get:

x = Rs. 45,000

So, Ram paid a total of Rs. 1,35,000 to clear his debt.

The total interest paid by him to the bank would be:

16,500 + 0.15 * 45,000 + 0.15 * 45,000 + 0.15 * 45,000 = Rs. 28,500

To start his business without borrowing extra loan, Ram should have waited for 3 years, until the age of 19, when his balance was Rs. 157.3x = Rs. 75,264. With an interest rate of 20% p.a. simple interest, the balance would become:

75,264 + 0.2 * 75,264 = Rs. 90,316.8

This amount would be sufficient for him to start his business without borrowing extra loan.

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the perpendicular or opposite side is approximately 10.42 units long.

How to solve the triangle?

In a right triangle, the side opposite the 90-degree angle is called the hypotenuse, and the side opposite the 15-degree angle is called the opposite side or perpendicular. The third side, adjacent to the 15-degree angle and the right angle, is called the adjacent side.

Using trigonometric functions, we can relate the angles and sides of a right triangle. In this case, we can use the tangent function, which is defined as the ratio of the opposite side to the adjacent side:

tan(15) = opposite/adjacent

We are given the hypotenuse, which is the hypotenuse, and we can use the Pythagorean theorem to find the adjacent side:

adjacent = sqrt(hypotenuse² - opposite²)

Substituting the value of the hypotenuse and rearranging the above equation we get:

opposite = √(hypotenuse² / (1 + tan(15)²))

Plugging in the values, we get:

opposite = √(12² / (1 + tan(15)²))

= √(144 / (1 + 0.2679))

= ²(108.5)

= 10.42

Therefore, the perpendicular or opposite side is approximately 10.42 units long.

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The amount of money that the student would saved altogether by paying off the loan in 3 years instead of 4 is $538.48.

To find out how much the student will save by paying off the loan in 3 years instead of 4 years, we will first calculate the monthly payments for each repayment period using the loan payment formula.

P = L x (r(1 + r)^n) / ((1 + r)^n - 1)

P 4years = 9,000 x (0.008333 x (1 + 0.008333)^48) / ((1 + 0.008333)^48 - 1)

P 4years = $228.17

For the 3-year repayment plan:

n = 3 years * 12 months/year = 36 payments

P 3years = 9,000 x (0.008333 x (1 + 0.008333)^36) / ((1 + 0.008333)^36 - 1)

P 3years = $289.28

Savings = Total in 4years - Total in 3years

= $10,952.16 - $10,413.68

=  $538.48

By paying off the loan in 3 years instead of 4 years, the student will save approximately $538.48.

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The sequence of the function is -34,-34 -8

In mathematics, the common difference is a term used in arithmetic sequences to refer to the fixed difference between any two consecutive terms in the sequence.

An arithmetic sequence is a sequence of numbers in which each term is obtained by adding a fixed value, called the common difference, to the preceding term.

-34 -21 -8 5 ...

f(1) = -34

f(n) = f(n-1) + [n-2]*13 for n = 2, 3, 4, ...

The common difference between consecutive terms of the sequence is 13.

The first term of the sequence is -34, which is f(1).

To get the nth term of the sequence, we add (n-2)*13 to the (n-1)th term of the sequence.

For example, to get the 2nd term of the sequence, we add (2-2)*13 = 0 to the 1st term, -34, which gives us -34.

To get the 3rd term, we add (3-2)*13 = 13 to the 2nd term, which gives us -21+13 = -8.

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The difference between the area of the rectangle and the area of the triangles is 56 units.

Area of the rectangle = 8 * 16

Area of the rectangle = 128 units

Area of triangle 1 = ¹/₂ * 4 * 12

Area of triangle 1 = 24 units

Area of triangle 2 =  ¹/₂ * 4 * 16

Area of triangle 2 = 32 units

Area of triangle 2 =  ¹/₂ * 4 * 8

Area of triangle 2 =  16 units

Area of rectangle - area of triangle = 128 - ( 24 + 32 + 16)

Area of the rectangle - the area of the triangles = 56 units

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To create a histogram of the number of years that each of the nine Omar's Omelette Operation locations has been open, we can start by organizing the data into groups or bins.

A histogram is a graphical representation of a distribution of data, typically shown as bars of different heights. In this case, we can use bins of equal width, such as 1 or 2 years. Then, we can count the number of values that fall into each bin and represent this count as the height of the corresponding bar.

For example, if we use bins of width 2 years, we can group the data into the following bins: [0, 2), [2, 4), [4, 6), [6, 8), [8, 10), and [10, 12). Then, we can count the number of values that fall into each bin and create a bar chart with bars of different heights corresponding to these counts.

The resulting histogram would show the distribution of the number of years that the Omar's Omelette Operation locations have been open, and we could use it to analyze the central tendency, variability, and shape of the data.

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Answer:

22 × 100

(which is 2200)

Step-by-step explanation:

44 × 50 may not look like a problem you can do in your head. But if you notice that there is a 2 in the 44 that you can "move over" to the 50 instead, you totally can do this multiplication in your head.

44 × 50

= 22 × 2 × 50

= 22 × 100

= 2200

Answer:

16/3 or 5 1/3

Step-by-step explanation:

multiply than simplify

The probability of no successes in eight trials of a binomial experiment with a probability of success of 7% is 0.6%

Probability is a measure of the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, where 0 indicates that the event is impossible, and 1 indicates that the event is certain to occur.

Probability can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes. The resulting value represents the likelihood of the event occurring. For example, if a coin is tossed, the probability of it landing heads up is 0.5 (assuming a fair coin), because there is one favorable outcome (heads) out of two possible outcomes (heads or tails).

The probability of no successes in eight trials of a binomial experiment can be calculated using the binomial probability formula:

P(X = 0) = (n choose k) × pᵏ × (1-p)ⁿ⁻ᵏ

where:

n = number of trials = 8

k = number of successes = 0

p = probability of success = 7% = 0.07

Substituting the values in the formula, we get:

P(X = 0) = (8 choose 0) × 0.07⁰ × (1-0.07)⁸⁻⁰

= 1 × 1 × 0.569

= 0.569

Therefore, the probability of no successes in eight trials of a binomial experiment with a probability of success of 7% is 0.6%, rounded to the nearest tenth of a percent.

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Answer:

Step-by-step explanation:

Equation of a circle:  [tex](x-a)^2+(y-b)^2=r^2[/tex]    with centre [tex](a,b)[/tex], radius [tex]r[/tex].

[tex](x-0)^2+(y+1)^2=4^2[/tex]

[tex]x^2+(y+1)^2=16[/tex]

Given a salary of $14 per hour, the pay for the following day of a weekly time card is $126.

It is the sum of money an employee receives in exchange for the job they perform. A monthly salary, annual salary, or hourly rate are the most common ways to convey it.

Pay = (4 hours x $14/hr) + (5 hours x $14/hr)

      = $126

The wage rate must be increased by the number of hours performed in order to determine the pay for the day.

The wage rate is $14/hr.

A 4 hour morning shift and a 5 hour afternoon shift were performed by the employee. Therefore, the day's salary is calculated using the following formula:

(4 hours x $14/hr) + (5 hours x $14/hr) = $126.

If you round this amount to the nearest hundredth, your total pay will be $126.00.

Monday  08:00  12:00   4hrs  *  $14   $56.00

                12:15    17:30   5hrs * $14    $70.00

                                        Total wages $126.00

It's crucial to maintain precise records of the hours worked each day to make sure the employee is paid correctly.

This covers the hours they arrive at work, leave at the end of the day, and any pauses they take. The employee's salary can then be calculated with accuracy using this information.

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Answer: x=-((y-2)^2)/12 +5

Step-by-step explanation:

Since the directrix is vertical, use the equation of a parabola that opens up or down. Find the vertex.

Answer:

≈ 75,4

Step-by-step explanation:

Given:

A = 452,39

Find: C - ?

First, we need to find the radius:

A = πr^2

πr^2 = 452,39 / : π

r^2 = 452,39/π

r ≈ 12

Now we can find the circumference:

C = 2π × 12 = 24π ≈ 75,4

Step-by-step explanation:

area of circle = 452.39,πr square = 452.39. 3.14r = 452.39 r square = 144 r = 12 cm diameter = 12x2= 24

Answer:

a) To find the probability that the length of the croaker fish is less than 7 inches, we need to calculate the z-score of 7 inches using the formula:

z = (x - mu) / sigma

where x is the length of the fish we are interested in, mu is the mean length of the population, and sigma is the standard deviation of the population.

In this case, x = 7, mu = 10, and sigma = 2. So the z-score is:

z = (7 - 10) / 2 = -1.5

We can look up the probability of a z-score less than -1.5 in a standard normal distribution table or use a calculator. The probability is approximately 0.0668 or 6.68%.

Therefore, the probability that the length of the croaker fish is less than 7 inches is 0.0668 or 6.68%.

b) To find the probability that the length of the fish is between 7 and 15 inches, we need to calculate the z-scores of 7 inches and 15 inches using the same formula as above:

z1 = (7 - 10) / 2 = -1.5

z2 = (15 - 10) / 2 = 2.5

We can look up the probability of a z-score between -1.5 and 2.5 in a standard normal distribution table or use a calculator. The probability is approximately 0.9332 or 93.32%.

Therefore, the probability that the length of the fish is between 7 and 15 inches is 0.9332 or 93.32%.

Answer:

22.8 Inches

Step-by-step explanation:

To find the hypotenuse, the formula is √c=√a^2+b^2

Lets input our values now:

c=√14^2+18^2

Now, let's solve:

c=√196+324

c=√520

The square root of 520 equals about 22.8, so our answer would be 22.8 inches.

Answer:

0

Step-by-step explanation:

since X= -2 and -2 < -1

f(-2)= (-2) +2

=0

Good luck

f( - 2 ) = 0 for the given piecewise function.

To find f( - 2 ) for the given piecewise function, we need to determine which part of the function applies to the input value x = - 2.

Since - 2 is less than or equal to - 1, we use the first part of the function where f(x) = x + 2 for x ≤ - 1.

Now, substitute x = - 2 into the first part of the function:

f( - 2 ) = ( - 2 ) + 2

f( - 2) = 0

So, f( - 2 ) = 0 for the given piecewise function.

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