7. Use the following figure to answer questions a-d.
a. Find the perimeter of the figure if the following is true:
a = x + 7
b = 2x + 2
C = 8x
d = x + 10

b. What is the perimeter of the figure in part
(a) if x = 4

c. What is the perimeter of the figure in part (b)
if x = 2 ?

d. Find the perimeter of the figure if the following
is true:
a = x2
b = 4x + 8
c = 2x²
d = x​

Option c) has moderate variability and is closer to the true proportion and thus is the most likely sequence of sample proportions to occur for 5 random samples of 8 students from this population.

To determine which sequence of sample proportions is most likely to occur for 5 random samples of 8 students from a population where 60% are eligible for financial aid, we'll examine the variability in the sample proportions generated with the applet.

Given the options:
a) 0.250, 0.125, 0.500, 0.500, 0.875
b) 0.600, 0.600, 0.600, 0.600, 0.600
c) 0.375, 0.625, 0.500, 0.500, 0.875

Option b) has no variability, which is unlikely in random sampling.

Option a) has very high variability, which is also unlikely.

Option c) has moderate variability and is closer to the true proportion of 0.60, making it the most likely sequence of sample proportions to occur for 5 random samples of 8 students from this population.

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Answer:

To find the height of the box, we need to use the formula for volume of a box: Volume = length x breadth x height

Given the values for length and breadth, we can substitute them into the formula and solve for height: 140 = 7 x 5 x height

Simplifying the equation, we get: 140 = 35 x height

Dividing both sides by 35, we get: height = 4

Therefore, the height of the box is 4 cm

Thee factory is able to provide 94.38 boxes per hour to the warehouse.

Rate = (2000 - 1245) / 8 = 94.38 boxes per hour

Therefore, the factory is able to provide 94.38 boxes per hour to the warehouse.

Boxes added in 40 hours = rate * time = 94.38 * 40 = 3,775.2

Therefore, the inventory at the end of a 40-hour work week would be:

1245 + 3775.2 = 5020.2 boxes

rate = (50000 - 1245) / time

Simplifying this equation, we get:

time = (50000 - 1245) / rate = 511.64 hours (rounded to two decimal places).

Therefore, it will take approximately 511.64 hours to fill the warehouse to its 50,000 box capacity,

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Answer:

the entire right column



Step-by-step explanation:

your solutions should simply to 64

Answer:2*2*2*2*2*2 and 4*16 and 8*8

Step-by-step explanation:

2*2*2*2*2*2=64

4*16=64

8*8=64

6*6*6*6*6*6=46656

2*6=12

12*12=144

1/5

you take 1/4÷ 1 1/4 and you get 1/5

The values of the standard normal random variable z, such that the probability of the following are satisfied: a. zo = -2.17; b. zo = 2.58;            c. zo = 1.645; d. zo =  1.44.; e. zo = 0.37; f. zo =  1.96; g. zo = 0; h. zo = 0.

a. P(z ≤ zo) = 0.0151:

zo = -2.17.

b. P(-z0 ≤ z ≤ z0)=0.99

Since the standard normal distribution is symmetric, therefore, finding the z-score corresponding to probability: (1+0.99)/2 = 0.995.

zo = 2.58.

c. P(-zo ≤ z ≤ zo)=0.90:

Using the same reasoning as above, z-score for probability: (1+0.90)/2 = 0.95.

zo = 1.645.

d. P(-z0 ≤ z ≤ zo) = 0.8154:

probability of being outside and inside the range (-zo, zo) respectively:

P(z ≤ -zo) = P(z ≥ zo) = (1 - 0.8154)/2 = 0.0923

P(-zo ≤ z ≤ zo) = 1 - P(z ≤ -zo) - P(z ≥ zo) = 1 - 2(0.0923) = 0.8154

z-score for probability: (1+0.8154)/2 = 0.9077.

zo = 1.44.

e. P(-zo ≤ z ≤ 0) = 0.2755:

Using symmetry of standard normal distribution:

P(-zo ≤ z ≤ 0) = P(0 ≤ z ≤ zo) = (1 - 0.2755)/2 = 0.36225

zo = 0.37.

f. P(-2 < z < zo) = 0.9746:

zo = 1.96.

g. P(z > zo) = 0.5:

Since the standard normal distribution is symmetric:

P(z > zo) = P(z < -zo) = 0.5

zo = 0.

h. P(z ≤ zo) = 0.0043:

 zo = 0.

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The equation for the relationship would be y = 0.25x - 2 and the unknown value would be 2. 5.

To find the equation, you first need to find the slope of the line by picking two points and applying the slope formula. The two points are (4, -1) and (12, 1).

The slope is:

= (y2 - y1) / (x2 - x1)

= ( 1 - ( - 1 ) ) / ( 12 - 4)

= 2 / 8

= 0. 25

We can then find the full equation :

y - ( - 1 ) = 0.25 (x - 4)

y = 0.25x - 2

The unknown y value when x is 18 is:

y = 0.25 ( 18 ) - 2

y = 2. 5

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The simplified frame of the expression [tex]3 \times \frac{7 {}^{2} }{3} \times \frac{8}{3} \times 7- \frac{1}{4} [/tex] is 6511.5.

To disentangle the given expression, we got to apply the arrange of operations (PEMDAS) and streamline the terms utilizing the example and division rules.

PEMDAS stands for Enclosures, Exponents, Multiplication and Division, and Expansion and Subtraction. We ought to perform the operations in this arrange to streamline the expression.

We rearrange the type: [tex]7^2 = 49[/tex]

We rearrange the division 8/3 by partitioning the numerator by the denominator: [tex] \frac{8}{3} = 2 \frac{2}{3} [/tex]

We disentangle the division 7-1/4 utilizing the run the show that a negative example is comparable to the corresponding of the base raised to the positive type: 7-1/4 = 1/74.

To revamp the expression with the rearranged values:  [tex]3 \times 49 / (2 \frac{2}{3} \times 1/74)[/tex]

To partition divisions, we increase by the corresponding of the second division:  [tex]3 \times 49 \times 74 / (2 \frac{2}{3} )[/tex]

We have to be rearrange the blended number  [tex]2 \frac{2}{3} [/tex] by increasing the total number by the denominator and including the numerator: [tex]2 \frac{2}{3} = \frac{8}{3} [/tex]

We will disentangle the expression by canceling out common variables:

3 x 49 x 74 / (8/3) = 6511.5

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Answer:

Step-by-step explanation:

Answer: A=38.48

Step-by-step explanation:

A=πr^2

7/2=3.5

3.5x3.5=12.25

12.25π

38.48

Hope this helps! :)

According to the given information :

(1) 2% of the calories in one serving of Fattoush come from carbohydrates.

(2) If the man consumes one serving of Fattoush, which contains 21.39g of protein, he still needs to consume an additional 46.45g of protein during the rest of the day.

1. To calculate the percent of Fattoush calories that comes from fat and carbohydrates, we need to know the total number of calories in one serving of Fattoush. Let's assume that the total number of calories in one serving of Fattoush is 200.

To calculate the percent of calories from fat:
- We know that 1g of fat = 9 calories, so if there are 21.39g of fat in one serving of Fattoush, we can multiply that by 9 to get the total number of calories from fat: 21.39g x 9 = 192.51 calories from fat.
- To calculate the percent of calories from fat, we can divide the total calories from fat (192.51) by the total number of calories in one serving of Fattoush (200) and then multiply by 100: (192.51 / 200) x 100 = 96.3%.

So, 96.3% of the calories in one serving of Fattoush come from fat.

To calculate the percent of calories from carbohydrates:
- We know that 1g of carbohydrates = 4 calories, so if there are 1g of carbohydrates in one serving of Fattoush, we can multiply that by 4 to get the total number of calories from carbohydrates: 1g x 4 = 4 calories from carbohydrates.
- To calculate the percent of calories from carbohydrates, we can divide the total calories from carbohydrates (4) by the total number of calories in one serving of Fattoush (200) and then multiply by 100: (4 / 200) x 100 = 2%.

So, 2% of the calories in one serving of Fattoush come from carbohydrates.

2. To calculate the RDA for protein for a 187# man, we need to convert his weight from pounds to kilograms:
- 187# / 2.205 = 84.8 kg
- RDA = 0.8g protein per kg of body weight
- RDA = 0.8 x 84.8 = 67.84g of protein

If the man consumes one serving of Fattoush, which contains 21.39g of protein, he still needs to consume an additional:
- 67.84g - 21.39g = 46.45g of protein during the rest of the day.

3. If we add 3 oz of grilled chicken to one serving of Fattoush, the new total calories would be:
- 200 (calories in one serving of Fattoush) + 130 (calories from 3 oz of grilled chicken) = 330 total calories

To calculate the new percentages of calories from fat and carbohydrates:
- We know that 1g of fat = 9 calories, so if there are now 24.39g of fat in the dish (21.39g from the Fattoush and 3g from the chicken), we can multiply that by 9 to get the total number of calories from fat: 24.39g x 9 = 219.51 calories from fat.
- To calculate the percent of calories from fat, we can divide the total calories from fat (219.51) by the total number of calories in the dish (330) and then multiply by 100: (219.51 / 330) x 100 = 66.5%.

So, the percent of calories from fat has decreased from 96.3% to 66.5%.

- We know that there is 1g of carbohydrates in one serving of Fattoush and 1g of carbohydrates in the chicken, so the total number of calories from carbohydrates is: 1g x 4 = 4 calories from carbohydrates.
- To calculate the percent of calories from carbohydrates, we can divide the total calories from carbohydrates (4) by the total number of calories in the dish (330) and then multiply by 100: (4 / 330) x 100 = 1.2%.

So, the percent of calories from carbohydrates has slightly decreased from 2% to 1.2%.

The percent increase in total calories is:
- We know that the original total number of calories in one serving of Fattoush was 200.
- We added 130 calories from the chicken.
- The percent increase in total calories is (130 / 200) x 100 = 65%.

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You might need to transfer measurements from the metric system to the US system and vice versa in various situations.

Some examples include:

1. International trade: If you are exporting or importing goods, it's essential to convert measurements to the recipient's preferred system, ensuring proper understanding of product specifications.

2. Travel: When traveling to a different country, you may need to convert distances, speed limits, or temperatures to better understand local road signs or weather conditions.

3. Cooking and recipes: When following a recipe from a different country, converting ingredient measurements can be crucial for accurate results.

4. Construction and engineering: Working on projects with international collaboration may require converting measurements to ensure all parties understand the specifications.

5. Science and education: As the metric system is the standard for scientific research, it may be necessary to convert US measurements to metric for consistency in data reporting and understanding.

Remember to use appropriate conversion factors when transferring measurements between the metric system and the US system to ensure accurate results.

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Bruce Lovegren paid a monthly annual premium of $125 for his $15,000 10-year term life insurance policy.

The monthly premium can be calculated by dividing the total cost of the policy by the number of months in the policy term:

monthly premium = total cost of policy / number of months in policy term

The total cost of the policy can be calculated by multiplying the annual premium by the number of years in the policy term:

total cost of policy = annual premium * number of years in policy term

The number of months in a year is 12.

Bruce Lovegren purchased the policy on April 14, 1977, so the policy was in effect for 10 years and 8 months, or 128 months.

The annual premium as follows:

total cost of policy = $15,000

number of years in policy term = 10

annual premium = total cost of policy / number of years in policy term

annual premium = $15,000 / 10

annual premium = $1,500

monthly premium = annual premium / 12

monthly premium = $1,500 / 12

monthly premium = $125

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Answer:

The formula for the surface area, S, of a cube with edges of length 2x is:

S = 6(2x)^2

Simplifying the expression inside the parentheses gives:

S = 6(4x^2)

Multiplying 6 by 4x^2 gives:

S = 24x^2

Therefore, the formula for the surface area of a cube with edges of length 2x is S = 24x^2, which is option (B).

Step-by-step explanation:

Answer:

104-18=86 and also  18-104=-86

Step-by-step explanation:

By the principle of mathematical induction, we can conclude that n! > 2ⁿ for all n ∈ Z≥4.

The art of demonstrating a claim, theorem, or formula that is regarded as true for each and every natural number n is known as proof.

We can prove by mathematical induction that n! > 2ⁿ for all n ∈ Z≥4.

First, we will prove the base case n = 4:

4! = 4 x 3 x 2 x 1 = 24

2⁴ = 16

Since 24 > 16, the base case is true.

Next, we assume that the inequality is true for some arbitrary k ≥ 4:

k! > [tex]2^k[/tex]

To complete the induction step, we must prove that the inequality is also true for k + 1:

(k+1)! = (k+1) x k!

(k+1)! > (k+1) x [tex]2^k[/tex]    (by the induction hypothesis)

(k+1)! > 2 x [tex]2^k[/tex]

(k+1)! > [tex]2^{(k+1)[/tex]

Since the inequality is true for k+1, this completes the induction step.

Therefore, by the principle of mathematical induction, we can conclude that n! > 2ⁿ for all n ∈ Z≥4.

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Answer:

Step-by-step explanation:

Formula of rectangle: base x height (b*h)

base:  8ft

height: 6+4= 10

8 x 10 = 80

Area of rectangle: 80ft

The correct answer is:
a. V1, V2 form the basis; V3 = 4V1 + V2, V4 = -4V1 + V2

To find a subset of the vectors that forms a basis for the space spanned by the vectors and express each vector that is not in the basis as a linear combination of the basis vectors, follow these steps:

1. Write the given vectors as rows of a matrix:
  A = | 1   0  1  1 |
      |-7   7 -4  1 |
      |-3   7  0  5 |
      |-11  7 -8 -3 |

2. Perform Gaussian elimination to find the row-reduced echelon form (RREF) of the matrix A.

3. The RREF of matrix A is:
  RREF(A) = | 1  0  1  1 |
            | 0  1 -2  3 |
            | 0  0  0  0 |
            | 0  0  0  0 |

4. Identify the pivot columns in the RREF matrix. In this case, the first and second columns have pivots.

5. The pivot columns correspond to the original vectors that form a basis. In this case, V1 and V2 form the basis.

6. Express each vector that is not in the basis as a linear combination of the basis vectors. For V3 and V4, we can see that:
  V3 = 4V1 + V2
  V4 = -4V1 + V2

So, the correct answer is:
a. V1, V2 form the basis; V3 = 4V1 + V2, V4 = -4V1 + V2

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The equation that represents the number of milliliters y of water in the bowl after x seconds is: y = 16x

The constant of proportionality for this relationship is the slope of the linear function that passes through any two points on the line. We can use the points (20, 320) and (60, 960) from the table to find the slope:

slope = (960 - 320) / (60 - 20) = 640 / 40 = 16

Therefore, the equation that represents the number of milliliters y of water in the bowl after x seconds is: y = 16x

The constant of proportionality is the ratio that relates two given values in what is known as a proportional relationship. Other names for the constant of proportionality include the constant ratio, constant rate, unit rate, constant variation, or even the rate of change.

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The maximum profit occurs when 34 offices are painted per month, and the maximum profit is R13500.

Based on the given information, Brush Pro is an one-man paint business owned by Banele and their monthly profit, P, depends on the number of offices painted per month, x. The profit function is given as P(x) = -x + 27x^2 + 132x + 2970, where 0 < x < 34.

To find the maximum profit, we need to find the vertex of the parabolic function. The vertex is located at x = -b/2a, where a = 27, b = 132.

x = -132/(2*27) = -2.44

Since x must be between 0 and 34, the maximum profit will occur at x = 0 or x = 34. We need to evaluate P(0) and P(34) to determine which one is the maximum.

P(0) = -0 + 27(0)^2 + 132(0) + 2970 = 2970
P(34) = -34 + 27(34)^2 + 132(34) + 2970 = 13500

Therefore, the maximum profit occurs when 34 offices are painted per month, and the maximum profit is R13500.

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≈≈≈Answer:

Step-by-step explanation:

To calculate the total amount Karl will pay to the bank, we need to find the monthly payment and then multiply it by the total number of payments over three years.

First, we need to calculate the monthly interest rate. Since the loan is compounded monthly, we divide the annual interest rate by 12:

Monthly interest rate = 7.25% / 12 = 0.006041667

Next, we need to calculate the total number of payments Karl will make over the course of the loan. Since he will be making monthly payments for three years, there will be a total of:

Total number of payments = 3 years x 12 months/year = 36 payments

To calculate the monthly payment, we can use the formula for the present value of an annuity:

Monthly payment = P * (r / (1 - (1 + r)^(-n)))

where P is the principal amount (in this case, $5000), r is the monthly interest rate, and n is the total number of payments.

Plugging in the values, we get:

Monthly payment = [tex]5000 * \frac{0.006041667}{(1-(1+0.006041667^{-36} )} = $154.96[/tex]

Finally, we can calculate the total amount Karl will pay to the bank by multiplying the monthly payment by the total number of payments:

Total amount paid = Monthly payment x Total number of payments = $154.96 x 36 = $5,578.56

Therefore, the total amount Karl will pay to the bank is $5,578.56

Answer:

~14.4

Step-by-step explanation:

You can use the Pythagorean Theorem to find the hypotenuse (corner to corner) of the line between the corners of the rectangle.

A^2 + b^2 = c^2

8^2 + 12^2 = 208
√208 = 14.42

The required expression is v = √2ay.

Let acceleration is given by: a

and initial velocity is given by: v

So, The maximum height(y) is

y= v² sinθ / 2a

As, θ=90 then

y = v² /2a

v² = 2ay

v = √2ay

Thus, the required expression is v = √2ay.

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The percentage of people's IQ over 80 is 9.18%, the percentage of people's IQ under 90 is 25.14% and the percentage of people's IQ between 112 and 132 is 8.23%
Then,
a) Over 80:
The z-score for 80 is (80-100)/15 = -1.33
Using a standard normal distribution table , we can evaluate that the area under the normal curve to the right of -1.33 is approximately 0.9082.
Therefore, the percentage of people's IQs that will be over 80 is approximately
(1-0.9082) x 100%
= 9.18%.

b) Under 90:
The z-score for 90 is (90-100)/15 = -0.67
Using a standard normal distribution table, we can evaluate that the area under the normal curve to the left of -0.67 is approximately 0.2514.
Therefore, the percentage of people's IQs that will be under 90 is approximately
0.2514 x 100%
= 25.14%.
c) Between 112 and 132:
The z-score for 112 is (112-100)/15 = 0.8
The z-score for 132 is (132-100)/15 = 2.13
Using a standard normal distribution table, we can calculate that the area under the normal curve between these two z-scores is approximately 0.0823.
Therefore, the percentage of people's IQs that will be between 112 and 132 is approximately
0.0823 x 100%
= 8.23%.
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Answer:

Step-by-step explanation:To determine the line of reflection, we need to find the equation of the line that is equidistant from each vertex of the original triangle and the corresponding vertex of the reflected triangle.

First, let's find the coordinates of the image of each vertex under the reflection. Since F' is given as (2, 2), we can reflect F across the unknown line of reflection to find the image of D and E. The line of reflection must be equidistant from each of these pairs of corresponding points.

To reflect F across a vertical line, the x-coordinate of F' must be the same as that of F but with the opposite sign. The x-coordinate of F is -2, so the x-coordinate of its image F' must be 2. Similarly, the y-coordinate of F' is 2, which means that the line of reflection must pass through the point (2, 2).

To reflect D across the same line, we can draw a perpendicular bisector between D and its image D', which must intersect the line of reflection at a right angle. The midpoint of DD' lies on the line of reflection, and it is equidistant from D and D'. Using the midpoint formula, we find the midpoint of DD' to be ((-3+2)/2, (5+2)/2) = (-0.5, 3.5). Since this point lies on the line of reflection, we can use the point-slope form of a line to find the equation of the line passing through (2, 2) and (-0.5, 3.5):

(y - 2) = m(x - 2) (where m is the slope of the line of reflection)

Simplifying:

y - 2 = m(x - 2)

y = mx - 2m + 2

To find the value of m, we can use the fact that the midpoint of DE lies on the line of reflection as well. The midpoint of DE is ((-3-10)/2, (5+4)/2) = (-6.5, 4.5). Substituting these values into the equation of the line, we get:

4.5 = m(-6.5) - 2m + 2

2.5 = -8.5m

m = -0.294

Therefore, the equation of the line of reflection is:

y = -0.294x + 2.588

This line is not the x-axis, y-axis or the line y=x. Therefore, the line of reflection is neither the x-axis nor the y-axis, and it is not the line y = x.

Answer:

X-axis

Step-by-step explanation:

I am in the middle of taking the quiz and this is the answer I think would be correct!

The equation for a circle with centre (h,k) and radius r is (x-h)^2 + (y-k)^2 = r^2. To find the point where the line with equation y = mx intersects the circle in the first quadrant, we can substitute y = mx into the equation for the circle.

(x-h)^2 + (mx-k)^2 = r^2
Expanding and simplifying:
x^2 - 2hx + h^2 + m^2x^2 - 2kmx + k^2 = r^2
Grouping the x terms:
(1 + m^2)x^2 - 2(h+km)x + h^2 + k^2 - r^2 = 0
This is a quadratic equation in x, which we can solve using the quadratic formula:
x = [2(h+km) ± sqrt(4(h+km)^2 - 4(1+m^2)(h^2+k^2-r^2))] / 2(1+m^2)
Simplifying:
x = (h+km) ± sqrt[(h+km)^2 - (h^2+k^2-r^2)m^2] / (1+m^2)
Since we're looking for a point in the first quadrant, we want the positive solution for x. Once we find x, we can plug it back into y = mx to get the y-coordinate of the point.
Note that there may be 0, 1, or 2 solutions depending on the specific values of h, k, r, and m. If there are 2 solutions, one will be in the first quadrant and the other in the fourth quadrant. If there is 1 solution, it will be on the border between the first and fourth quadrants. If there are 0 solutions, the line does not intersect the circle in the first quadrant.

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Answer:

225 cm²

Step-by-step explanation:

The container has 2.7L of water in it but it is only 4/5 full

Therefore if the container were to be filled entirely with water  it would contain
2.7 x 5/4 = 3.375 Liters

This, therefore is the volume of the container is 3.375 L
3.375 L = 3.375 x 1000 cm³
             =  3, 375 cm³

The volume of a cube of side a is given by
V = a³

The base area of a cube of side a is given by
A = a²

We have calculated the volume of the cube as 3.375 cm³

Therefore each side of the cubical container
[tex]a = \sqrt[3]{3375} = 15[/tex] cm

The base area is
a² = 15²
    = 225 cm²

(a) The value of the expression -(a%b-c/d+e*f) is -27.5 when a = 10, b = 3, c = 5, d = 2, e = 4, and f = 6

(b) For the second expression the final result is : FALSE

a. -(a%b-c/d+e*f)

Step 1: Let's assume that a = 10, b = 3, c = 5, d = 2, e = 4, and f = 6.
Step 2: Evaluate the expression inside the parentheses: c/d = 5/2 = 2.5
Step 3: Evaluate the expression inside the parentheses: e*f = 4*6 = 24
Step 4: Evaluate the expression inside the parentheses: a%b = 10%3 = 1
Step 5: Add the results of steps 2, 3, and 4: 2.5 + 24 + 1 = 27.5
Step 6: Negate the result of step 5: -27.5

Therefore, the value of -(a%b-c/d+e*f) is -27.5 when a = 10, b = 3, c = 5, d = 2, e = 4, and f = 6.

b. ! ((a>b) && (cb) = false, (cb) && (c b) && (c > d))
  Step 1: a > b = 6 > 4 = true
  Step 2: c > d = 8 > 2 = true
  Step 3: true && true = true
  Step 4: !(true) = false
  Final result: false

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The tables are completed as follows:

For Table 1, we have an exponential function defined as follows:

f(x) = b^x.

We have that when x = 0.699, f(x) = 5, hence the base b is obtained as follows:

b^0.699 = 5

b = 5^(1/0.699)

b = 10.

Hence, when x = 1.477, the value of f(x) is given as follows:

f(x) = 10^1.477

f(x) = 30.

Table 2 is the inverse of table 1. For Table I, we have that when x = 1.301, f(x) = 20, hence for table 2, we have that f(x) = 1.301 when x = 20.

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The product of the numbers is 2.788 x 10^8.

Scientific notation is a method of expressing very large numbers so that they can be easily understood. The process involves expressing the number in terms of the power of ten. For example; 1230000000000 = 1.23 x 10^12.

In the given question, the product of 8.2 x 10^2 and 3.4 x 10^5 is required.

Thus;

8.2 x 10^2 * 3.4 x 10^5 = 8.2 * 3.4 x 10^5 * x 10^2

                                     = 8.2 * 3.4 x 10^(2+5)

                                     = 27.88 x 10^7

                                     = 2.788 x 10^8

Therefore, the product of the numbers expressed in scientific notation is 2.788 x 10^8.

Learn more about scientific notation at https://brainly.com/question/5756316

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