Which table represents a function? Choose all that apply.

Hint: there are 3 correct answers

Answer:

h = 11

Step-by-step explanation:

Sum of the angles in a Triangle = 180°, So;

\(83 + 39 + (6h - 8) = 180 \\ 122 - 8 + 6h = 180 \\ 114 + 6h = 180 \\ 6h = 180 - 114 \\ 6h = 66 \\ h = 66 \div 6 \\ h = 11\)

Given, the walking step lengths of adult males are normally distributed with mean = 2.8 feet and standard deviation = 0.5 feet.The sample size = 73.

Now, we need to find the probability that the mean of the sample taken is less than 2.2 feet.The formula to calculate the z-score is:z = (x - μ) / (σ / sqrt(n))

Where,x = 2.2 feetμ = 2.8 feetσ = 0.5 feetn = 73Plugging in the given values,z = (2.2 - 2.8) / (0.5 / sqrt(73))z = -4.7431 (rounded to 4 decimal places)

Now, looking up the z-score in the z-table, we get:P(z < -4.7431) = 0.0000044 (rounded to 4 decimal places)

Therefore, the probability that the mean of the sample taken is less than 2.2 feet is 0.0000044 (rounded to 4 decimal places). To find the probability that the mean of the sample taken is less than 2.2 feet, we first calculated the z-score using the formula:z = (x - μ) / (σ / sqrt(n)) where x is the value we are interested in, μ is the population mean, σ is the population standard deviation, and n is the sample size.We plugged in the given values and calculated the z-score to be -4.7431. Next, we looked up the z-score in the z-table to find the corresponding probability, which turned out to be 0.0000044.To summarize, the probability that the mean of the sample taken is less than 2.2 feet is very small, only 0.0000044. This means that it is highly unlikely that we would obtain a sample mean of less than 2.2 feet if we were to take many samples of 73 men's step lengths from the population of adult males. This result is not surprising, as 2.2 feet is more than 3 standard deviations below the population mean of 2.8 feet. Therefore, we can conclude that the sample mean is likely to be around 2.8 feet, with some variability due to sampling.

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The solution of each of the following systems of linear equations using augmented matrices are below:

(a) x = -2 and y = -1

(b) x = -1/2 and y = 1

(c) x = -7 and y = 2

(d) Either \(S = \frac{16}{3}\) and there are infinite solutions or\(S \neq \frac{16}{3}\) and there are no solutions

a. x - 3y = 1, 2x - 7y = 3 Putting the above linear equation in augmented matrices form we get:

\(\left[\begin{array}{ccc}1&-3&|1\\2&-7&|3\\\end{array}\right]\)

Performing row operations to solve the above matrix we get:

\(\left[\begin{array}{ccc}1&-3&|1\\0&-1&|1\\\end{array}\right]\) therefore y = -1

and \(\left[\begin{array}{ccc}1&0&|-2\\0&1&|-1\\\end{array}\right]\) therefore x = -2.

b. x + 2y = 1, 3x + 4y = 1 Putting the above linear equation in augmented matrices form we get:\(\left[\begin{array}{ccc}1&2&|1\\3&4&|1\\\end{array}\right]\)

Performing row operations to solve the above matrix we get: \(\left[\begin{array}{ccc}1&2&|1\\0&-2&|-2\\\end{array}\right]\) so y = 1

and \(\left[\begin{array}{ccc}1&0&|\frac{-1}{2} \\0&1&|1\\\end{array}\right]\) so x = \frac{-1}{2}

c. 2x + 3y = -1, 3x + 4y = 2 Putting the above equation in matrix form we get: \(\left[\begin{array}{ccc}2&3&|-1\\3&4&|2\\\end{array}\right]\)

Performing row operations to solve the above matrix we get: \left[\begin{array}{ccc}2&3&|-1\\0&1&|2\\\end{array}\right] therefore y = 2

and \(\left[\begin{array}{ccc}1&0&|-7\\0&1&|2\\\end{array}\right]\) therefore x = -7

d. 3x + 4y = 1, 4x + Sy = -3 Putting the above equation in matrix form we get: \(\left[\begin{array}{ccc}3&4&|1\\4&S&|-3\\\end{array}\right]\)

As the above matrix is not in the echelon form, therefore we perform row operations to convert the matrix into echelon form: \\([\begin{array}{ccc}3&4&|1\\4&S&|-3\\\end{array}\right}]\)

Performing row operation R_{2}→ R_{2}-\frac{4}{3}R_{1}

We get: \(\left[\begin{array}{ccc}3&4&|1\\0&S-\fract{16}{3}&|\frac{-7}{3}\\\end{array}\right]\)

Therefore, either \(S = \frac{16}{3}\) and there are infinite solutions or S ≠ 16/3 and there are no solutions.

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Answer:

My friend, you have to look further than how stressful school presently is. I advice you to find something you love while you're young and devote your time to it. As a high school senior, I am super into computers and I practice game design as a hobby. you need to get something that drives you. also you gotta practice study especially if you wanna make it into college. Stay strong man

Answer:

I can't add anything beacuse of copyright

Answer:

(5,-1)

(5,-1)

Im pretty sure

answer: x = - 1

x = 11

Step-by-step explanation:

2x6 7s5

Equations −2x+5y=−2 and 4x−10y=4 have no solution.

An inconsistent system is a set of equations that cannot be solved. Although a system of linear equations typically has a single solution, it occasionally may have infinite or no solutions (parallel lines) (same line). The solution set refers to all possible answers to an equation or inequality. The no solution symbol,, is used to indicate that there is no solution to an equation or inequality. None Found: There are no solutions when the lines that make up a system are parallel because the two lines have no points in common.

Given,

Equations,

−2x+5y=−2 .. Equation 1

4x−10y=4 .. Equation 2

Multiplying equation 1 by 2

-4x + 10y = -4

4x - 10 y = 4

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

0

Equations −2x+5y=−2 and 4x−10y=4 have no solution.

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Answer:

3 1/6

Step-by-step explanation:

0.368 .

The probability that a random variable x is exponentially distributed and less than 45 minutes,

given that the average value is 45 minutes, is 0.368.

This can be calculated by taking the negative of the natural logarithm of 1/2 (i.e. -ln(0.5)) and dividing it by the average value of 45 minutes.

The result, -ln(0.5)/45, equals 0.368, rounded to three decimal places.

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As calculated from the given data Jane's calorie intake is 1200 per day.

From the details given in the question we can say that Jane doesn't likes milk. Hence, she lacks dairy fat  in her food. As per the given case she likes vegetables and eats fruit a lot. Therefore, and the grams of total caloric intake for her should be 1200 calories per day.

She does, however, lack fats from dairy products like milk. A child of 8 years old is thought to need at least 2 cups of milk or its equivalent each day. Jane is getting enough carbohydrates because she consumes 225 gram per day as opposed to the recommended 130 gram.

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Answer:

D-4

Step-by-step explanation:

It is asking for the slope and is written in slope-intercept form. 4x is your slope and 3 is your y intercept.

Answer:

c. A sample is a small part of a population that represents that population.

Step-by-step explanation:

A sample is a portion of individuals used to collect data, while the population is the total number of individuals. The information from the sample is used to represent the entire population.

Therefore, c is the correct answer.

Relationship between sample and population : A sample is a small part of a population that represents that population.

Given,

Relationship between sample and population .

Here,

A sample is a portion of individuals used to collect data, while the population is the total number of individuals. The information from the sample is used to represent the entire population.

Therefore, c is the correct answer.

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As a result, the solid's volume in the first octant, which is restricted by the paraboloid z = 4 + 2 x + 2 y, is 9.

We must determine the limits of integration for x, y, and z in order to determine the volume of the solid in the first octant bounded by the paraboloid z = 4 + 2x + 2y + 2 and the plane z = 10.

At z = 10, where the paraboloid and plane overlap, we put the two equations equal and find z:

4 + 2x^2 + 2y^2 = 10

2x^2 + 2y^2 = 6

x^2 + y^2 = 3

This is the equation for a circle in the xy plane with a radius of 3, centred at the origin. We just need to take into account the area of the circle where x and y are both positive as we are only interested in the first octant.

Integrating over the circle in the xy-plane, we may determine the limits of integration for x and y:

∫∫[x^2 + y^2 ≤ 3] dx dy

Switching to polar coordinates, we have:

∫[0,π/2]∫[0,√3] r dr dθ

Integrating with respect to r first gives:

∫[0,π/2] [(1/2)(√3)^2] dθ

= (3/2)π

So the volume of the solid is:

V = ∫∫[4 + 2x^2 + 2y^2 ≤ 10] dV

= (3/2)π(10-4)

= 9π

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Answer:

Scale factor = \(\frac{1}{2}\)

Step-by-step explanation:

Perimeter of the actual flag = 22 in.

Perimeter of the scale drawing of the flag = 11 in.

Since, perimeter of a triangle = Sum of all three sides of the given triangle

Therefore, scale factor of the drawing

= \(\frac{\text{Measure of the side of drawing}}{\text{Measure of the side of actual}}\) = \(\frac{\text{Perimeter of drawing}}{\text{Perimeter of actual}}\)

= \(\frac{11}{22}\)

= \(\frac{1}{2}\)

Therefore, scale factor of the drawing will be \(\frac{1}{2}\).                                        

Each side of the scaled triangle will be half of the actual triangle.

Answer: 42

Step-by-step explanation:

10+8^3/10

Exponets first

8^3=512

Then Divide

512/16=32

Finally add

32+10=42

Use Order of Operations

Answer:

its got 6

Step-by-step explanation:

I REALLY DONT KNOW

Answer:

Step-by-step explanation:

Let t be the unit cost of the tomatoes:  e. g., t = $1.25/lb.

If Keith spent $8 on tomatoes, the number he bought would then be

   $8

------------- = 6.4 lb of tomatoes

$1.25/lb

Of course he couldn't buy 0.4 tomato, but this method of calculating how many tomatoes he could buy theoreticallyl is correct.

The general formula would be

   $8

------------   and the end result would be the number of pounds Keith could

  $t / lb                               buy for $8.

Answer: -842

Step-by-step explanation:

To find n95, we have to use the equation aₙ = d * n + a₁ - d

a₁ is the first term, which here is 4. d is the common difference, which we can find out but seeing what we can add pr subtract from 4 to -5 which also equals -5 to -14, in this equation, the common difference would be -9 as it goes down by 9 every term. Once we plug these into the equation, we get

a₉₅ = -9 * n + 4 - (-9)

We can solve this for - aₙ = -9n + 13

Now that we have our equation to find a term, we can plug in n for 95 for

-9(95) + 13

Which equals -842

Henry opens a savings account with an annual interest rate of 4.5 percent. After a year, he gets $75,000 in payment. He made a deposit into the savings account of $72,831.68.

Here are the steps on how to calculate the amount Henry invested:

Convert the annual interest rate to a monthly rate.

\(\begin{equation}4.5\% \div 12 = 0.375\%\end{equation}\)

Calculate the number of years.

\(\begin{equation}\frac{18 \text{ months}}{12 \text{ months/year}} = 1.5 \text{ years}\end{equation}\)

Use the compound interest formula to calculate the amount Henry invested.

\(\begin{equation}FV = PV * (1 + r)^t\end{equation}\)

where:

FV is the future value ($75,000)

PV is the present value (unknown)

r is the interest rate (0.375%)

t is the number of years (1.5 years)

\(\begin{equation}\$75,000 = PV \cdot (1 + 0.00375)^{1.5}\end{equation}\)

\$75,000 = PV * 1.0297

\(\begin{equation}PV = \frac{\$75,000}{1.0297}\end{equation}\)

PV = \$72,831.68

Therefore, Henry invested \$72,831.68 in the savings account.

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Answer: 14 5/14 bags of woods

Step-by-step explanation:

Since one bag of wood chips covers a 3 1/2 yard section of the trail and the section of the trail is 50 1/4 yards long, the number of bags of wood chips that are needed to cover the wet section of the trail will be calculated by dividing the wet section of the trail by 3 1/2. This will be:

= 50 1/4 ÷ 3 1/2

= 201/4 ÷ 7/2

= 201/4 × 2/7

= 402/28

= 201/14

= 14 5/14 bags of woods

We have that because the central angle is 90°, the sector represents 1/4 of a circle with a radius of 10 yd.

So, length of the safety rail is given by:

Where:

r = 10 yd

pi = 3.14

Substitute, we have:

The Answer is 15.7 yd

Next, area of the deck is given by:

Substitute the values:

The answer is 78.5 yd^2

Answer:

i hope this helps!

explanation:

part a.) 16 + 5m

part b.) if you walked 15 miles, you would earn $91. work:

16 + 5m

16 + 5(15)

16 + 75

91

A) 16+15m

B) 16+5m

16+5x15=91

Step by Step:

5x15=75

16+75=91

Answer:

B) 14, 18, 5

Step-by-step explanation:

This is correct

Answer:

x ≈ 2.76

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan78° = \(\frac{opposite}{adjacent}\) = \(\frac{AB}{BC}\) = \(\frac{13}{x}\) ( multiply both sides by x )

x × tan78° = 13 ( divide both sides by tan78° )

x = \(\frac{13}{tan78}\) ≈ 2.76 ( to 2 dec. places )

Answer:

This (x - 5) represents the length of the rectangle.

Step-by-step explanation:

The formula for the area of a rectangle of length L and width W is A = L * W.

Here, the width is x - 4 and the area is x^2 + x - 20.  Dividing the width (x - 4) into the area results in an expression for the length:

x - 4  /   x^2 + x - 20

Let's use synthetic division here.  It's a little faster than long division.

If the divisor in long division is x - 4, we know immediately that the divisor in synthetic division is 4:

4   /   1    1    -20

              4     20

    --------------------

         1     5     0

This synthetic division results in a remainder of 0.  This tells us that 4 (or the corresponding (x - 4) is indeed a root of the polynomial x^2 + x - 20, and so *(x - 4) is a factor.  From the coefficients 1 and 5 we can construct the other factor:  (x - 5).  This (x - 5) represents the length of the rectangle.

Answer: The arc length of the clock is 31.42cm

Step-by-step explanation:

1. Use your section formula: S = r (Radius) θ (Theta: Angle in radians)

2. Convert your 180 degrees to radians by multiplying it by π / 180, resulting in π radians.

3. Take your radius of 10cms and multiply it by π, leaving 31.42cm. This is the length of the 180 degree arc.

Answer:

Step-by-step explanation:

Here is the complete question.

Maria and Franco are mixing sports drinks for a track meet. Maria uses 2/3 cup of powdered mix for every 2 gallons of water. Franco uses 1 1/4 cups of powdered mix for every 5 gallons of water. Which sports drink is stronger?

For us to get the stronger drink, we will need to calculate the amount of cup  of mix  in one gallon of water for both Maria and Franco.

For Maria:

Maria uses 2/3 cup of powdered mix for every 2 gallons of water

2/3 cup of mix = 2 gallons of water

x cup of mix = 1 gallon of water

cross multiply

2 * x = 2/3 * 1

2x = 2/3

6x = 2

x = 2/6

x = 1/3

Hence Maria mixed 1/3 (33.3%) cup of powdered mix in a gallon of water

For Franco:

Franco uses 1 1/4 cup of powdered mix for every 5 gallons of water

5/4 cup of mix = 5 gallons of water

x cup of mix = 1 gallon of water

cross multiply

5 * x = 5/4 * 1

5x = 5/4

20x = 5

x = 5/20

x = 1/4

Hence Maria mixed 1/4 cup of powdered mix (25%) in a gallon of water.

Based on the percentage per gallon of water, Maria sport drink is stronger.

Answer:

true

Step-by-step explanation:

Answer:

I thinks it 1 min

Step-by-step explanation: search up "what ratio would you use to convert 60 sec / 1 minute"

The required percentage yield for the reaction when theoretical yield and actual yield are given is calculated to be 85.5 %.  

The maximum mass that can be generated when a particular reaction occurs is referred to as theoretical yield.

Theoretical yield is given as mt = 9.23 g

The actual amount of product recovered is given as ma = 7.89 g

We must comprehend that in order to calculate the reaction's percent yield, we must divide the total amount of product recovered by the utmost amount that can be recovered. If we multiply by 100%, we can represent this fraction as a percentage.

Percentage yield = ma/mt × 100 = 7.89/9.23 × 100 = 85.5 %

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To evaluate the line integral over the closed curve C using Green's theorem, we need to calculate the double integral of the curl of the vector field over the region enclosed by the curve.

Green's theorem relates a line integral around a closed curve to a double integral over the region enclosed by the curve. It states that for a vector field F = ⟨P, Q⟩ and a closed curve C defined by the parameterization r(t) = ⟨x(t), y(t)⟩, the line integral of F around C is equal to the double integral of the curl of F over the region D enclosed by C:

∮C F · dr = ∬D curl(F) · dA

In this case, we want to evaluate the line integral over the closed curve C. The curve C is formed by traveling in straight lines between the points (-4, 1), (-4, -4), (1, -3), (1, 4), and back to (-4, 1), in that order.

To apply Green's theorem, we first need to calculate the curl of the vector field F = ⟨P, Q⟩. Let's assume the vector field is given by F = ⟨P, Q⟩ = ⟨P(x, y), Q(x, y)⟩.

Next, we need to find the region D enclosed by the curve C. The region D is the interior of the polygon formed by the given points (-4, 1), (-4, -4), (1, -3), (1, 4), and (-4, 1).

Once we have the curl of the vector field and the region D, we can evaluate the double integral of the curl over D to obtain the desired result.

The application of Green's theorem allows us to relate the line integral of a vector field around a closed curve to a double integral over the region enclosed by the curve. It provides a powerful tool for calculating line integrals by converting them into double integrals, which are often easier to evaluate.

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