When Mamadou goes bowling, his scores are normally distributed with a mean of 175 and a standard deviation of 13. Using the empirical rule, what percentage of the games that Mamadou bowls does he score between 136 and 214?

Answer:

A. 33 • 18

Step-by-step explanation:

Product means multiplication

There are different symbols that are used for denoting multiplication and the dot (•) symbol is one of them

So 33 • 18 is same as 33 x 18 which is the product of 33 and 18

Answer:

The expression (quotient) which is modelled by the given diagram as in the task content is; (x²+x-2)/(x-1) = x +2.

Which expression and quotient is depicted by the diagram model as in the task content?

It follows from the task content that the diagram model in discuss by observation involves a quotient in which case, the division is; (x-1).

Additionally, the dividend in the quotient by observation is the sum of terms as follows;

x² + x +x -x -1 -1 = x²+x -2.

Ultimately, the result of the division according to the model is; (x +2).

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Step-by-step explanation:

The total price he has to pay for the clothes is 27.83

What is Percentage ?

Percentage can be defined as the product ratio of given value, total value and hundred.

Clothing price (100 percent) is 26 dollars and 50 cents, Added tax is 5 percent, and total cost is blank.

Darrien purchases some clothes for a total of $26.50, before tax. Sales tax in his state is 5 percent.

If Darrien spends 26.50, multiply that by 0.05 (26.50×0.05)

which is 1.325 which rounds to 1.33. $1.33 is the amount of tax he has to add. For the full price you would do 26.50+1.33 to get 27.83.

Therefore, The total price he has to pay for the clothes is 27.83

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The area of the shaded region is equal to 116 sq units.

It is given that we can assume the angles to be right angle. So from the fig we  can see that it is a quadrilateral and  length and breadth for the given figure are different. So the given fig is a rectangle.

The area of a rectangle = length × breadth

∴ The area of the bigger rectangle = 10×20=200 sq units

Similarly,

The area of the smaller rectangle = 14 × 6 = 84 sq units

Now,

The area of the shaded region = Bigger rectangle - Smaller rectangle

⇒ 200 - 84 = 116 sq units

Therefore, The area of the shaded region is equal to 116 sq units.

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The recursive sequence that would produce the sequence 5, -17, 71, is by multiplying the previous term by -4 and adding 3.

A recursive sequence is a sequence where each term is defined as a function of the preceding term(s).

Given the sequence 5, -17, 71, ..., we can see that the next term in the sequence is obtained by multiplying the previous term by -4 and adding 3.

Therefore, the recursive sequence that produces this sequence is:

a_1 = 5

a_n = -4a_{n-1} + 3 where n > 1

This means that the first term of the sequence is 5, and each subsequent term is obtained by multiplying the previous term by -4 and then adding 3.

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Answer: 40°

Step-by-step explanation:

The probability that the result was a 6 is P(A)=1/3 the die is tossed and we are told that a result is a number greater than 4.

A standard 6-sided die numbered 1 to 6 has 2 sides that meet the criterion of greater than 4, which are 5 and 6. So out of 6, there are 2 ways.

A die has 6 faces with the numbers 1,2,3,4,5 and 6 on each of the six faces. Now consider an unbiased die and the probability of any of the faces appearing in a single roll is 1/6.

So,

P(1)=P(2)=P(3)=P(4)=P(5)=P(6)=1/6

The numbers that are greater than 4 are 5 and 6

So it can be P(5) or P(6)=

P(5)+P(6)=2/6=1/3.

If you had stated at least a 4, then there are three chances which are to be 4,5,6 that meet the criterion, and the chance would be 3/6=1/2.

Hence, by the classical definition of probability, the probability of getting a number more than 4 in a single throw of a die is 1/3.

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The probability of landing on purple is equal to the probability of landing on yellow. Therefore, option D is the correct answer.

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes

Given that, a spinner divided into eight equal colored sections, with one orange, two purple, two yellow, and three blue.

Here,

Probability of landing on orange is 1/8

Probability of landing on purple is 2/8 =1/4

Probability of landing on yellow is 2/8 =1/4

Probability of landing on blue is 3/8

Therefore, option D is the correct answer.

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Answer: No real "space" exists. There is plenty of air all around us

Step-by-step explanation: I'm sorry If I am wrong tysm

-☈⊙⌘☿

Answer:

cosmic microwave background radiation

Step-by-step explanation:

Since the value of y can be known from equation 1, we can use the substitution method to solve the system of equations. By entering the value of y in equation 2, we can quickly get the value of x. So the option B is correct.

The system of equation are:

y = 1/2x...................(1)

2x + 3y = 28...................(2)

To solve the system of equation we use substitution method because the value of y is know from the equation 1. We can find easily the value of x by putting the value of y in equation 2.

Now putting the value of y in equation 2.

2x + 3(1/2x) = 28

2x + 3/2 x = 28

7/2 x = 28

Multiply by 2 on both side, we get

7x = 56

Divide by 7 on both side, we get

x = 8

Now putting the value of x in equation 1

y = 8/2 = 4

The solution of the system of equation is (8, 4).

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The value of X is 40/3ft, Y is 27/4ft and Z is 469/27ft. The solution has been obtained by using the properties of triangle.

What is a triangle?

The three vertices of a triangle make it a three-sided polygon. The angles of the triangle are formed by the three sides' end-to-end connections at a point. The triangle's three angles add up to a total of 180 degrees.

We know that if a line is parallel to the third side of the triangle, then the ratio of the sides is equal.

So,

⇒10/6 = x/8

⇒80/6 = x

⇒40/3 = x

Similarly,

⇒y/10 = 9/(40/3)

⇒y/10 = 27/40

⇒y = 27/4

Similarly,

⇒y/(y+10) = 7/z

⇒(27/4)/((27/4)+10) = 7/z

⇒469/27 = z

Hence, the value of X is 40/3ft, Y is 27/4ft and Z is 469/27ft.

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The value of average rate of change of y = 0.5x - 3 over the interval

- 3 ≤ x ≤ 4 is, 0.5.

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

We have to given that;

The function is,

⇒ y = 0.5x - 3

Now, The average rate of change is,

⇒ y = 0.5x - 3

⇒ dy / dx = 0.5

Hence, The value of average rate of change of y = 0.5x - 3 over the interval  - 3 ≤ x ≤ 4 is, 0.5.

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Answer: y = x - 2

Step-by-step explanation:

The equation representing the relationship between the ages of Debra and Pam is y = x + 2. This is determined by analyzing the table provided, which shows the ages of Pam (x) and Debra (y) in years. From the table, we can see that for every 1 year increase in Pam's age, Debra's age also increases by 1 year. This is represented in the equation y = x + 2, where y (Debra's age) is equal to x (Pam's age) plus 2 years. This equation is supported by the data in the table, as all of the ordered pairs (x, y) in the table satisfy the equation y = x + 2.

Using the laws of exponential used to simplify the expression, we have; 1/x^2.

When a given expression has an exponent, this implies that the degree of one of its variable is more than 1. So that the laws of exponent which is also law of indices can be used to determine the required simplification of the expression if required.

From the given question, we have;

x^3/ x^5

So that from the law of indices,

x^3/ x^5 = x^3 x^-5

              = x^(3 - 5)

              = x^-2

From the inverse law of exponent,

x^-2 = 1/ x^2

Using the law of exponents, the simplified form of the expression is 1/ x^2.

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The required measure of the smallest angle in the triangle is 37°.

A triangle is said to be right-angled if one of its angles is exactly 90 degrees. The sum of the other two angles is 90 degrees. Perpendicular and the triangle's base are the sides that make up the right angle. The longest of the three sides, the third side is known as the hypotenuse.

We know that one angle in right angled triangle is 90 degree and sum of other two angle is 90 degree.

So, acute angles are (2x -3) and (3x-7).

Then

(2x -3) +  (3x-7) = 90

5x - 10 = 90

5x = 100

x = 20

Smallest angle = 2x - 3

= 2(20) - 3

= 40 - 3

= 37°

Thus, required Smallest angle is 37°

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There is about a 27% chance of her sinking at least one ball on her break 14 or fewer times in 20 games and no convincing evidence that her average is less than 80%.

Based on the dot plot of the simulation results, it appears that the player's true probability of sinking at least one ball on her break is not 80%. In the simulation, there were only 12 trials out of 100 where the player sank at least one ball on her break 14 or fewer times in 20 games. This corresponds to a probability of 12/100, or 12%.

Since the player's actual performance in the last 20 games (14 out of 20) is less likely to occur than what was observed in the simulation, we can get the conclusion that the player has a lower than 80% chance of sinking at least one ball during her break.

Therefore, the correct conclusion is, "there is about a 27% chance of her sinking at least one ball on her break 14 or fewer times in 20 games. This result is not unusual and there is no convincing evidence that her average is less than 80%."

The question is incomplete. The complete question is 'The player’s true probability of sinking at least one ball on her break is 27%. another 100 simulated trials would show a much different outcome; therefore, we cannot draw any conclusions. it is most likely that she would sink at least one ball during her break exactly 16 times. there is about a 27% chance of her sinking at least one ball on her break 14 or fewer times in 20 games. this result is not unusual and there is no convincing evidence that her average is less than 80%.'

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Answer:

d

Step-by-step explanation:

edge 2020

The length of Sarah's drawing is given by the following equation:

0.1g = 0.8.

The scale of the drawing is obtained applying the proportions in the context of this problem.

The scale is defined as the division of the drawn length by the actual length.

Sarah's drawing has a scale factor of 1 inch to 0.1 inch, meaning that each inch she draws has an actual length of 0.1 inch.

The rule of three is defined as follows:

1 inch - 0.1 inches

g inches - 0.8 inches

Hence the equation is:

0.1g = 0.8.

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The proportion taken by John 3:4 = 5:12 is correct.

The term called proportion in math is defined as the values of the proportion that are close to each other when written in ratio form using a colon.

Here we know that the  a 3-4-5 right triangle and a 5-12-13 right triangle are set by John.

And the taken proportion is written as,

=> 3:4 = 5:12

Here we have to use the Pythagoras theorem to verify this one, then we get,

=> 3² + 4² = 5²

=> 9 + 16 = 25

=> 25 = 25

Now, we have to take the other values and verify that one also,

=> 5² + 12² = 13²

=> 25 + 144 = 169

=> 169 = 169

Therefore the proportion is correct.

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A linear equation representing the data in table is t(n) = 12x + 23.

The missing values in table should be completed as follows;

n            t(n)

4             71

5             83

Mathematically, the point-slope form of a straight line can be calculated by using this mathematical expression:

y - y₁ = m(x - x₁) or y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)

Where:

m represents the slope.

x and y are the data points.

Next, we would determine the linear equation representing the data in table which passes through the points (1, 24) and (2, 36) by using the point-slope form as follows:

y - y₁ = (y₂ - y₁)/(x₂ - x₁)(x - x₁)

y - 24 = (36 - 24)/(2 - 1)(x - 1)

y - 24 = 12(x - 1)

y = 12x - 1 + 24

y = t(n) = 12x + 23

When the value n = 4, the value of t(n) can be calculated as follows;

t(4) = 12(4) + 23

t(4) = 71.

When the value n = 5, the value of t(n) can be calculated as follows;

t(5) = 12(5) + 23

t(5) = 83.

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The approximate range will be 56.25 gm. after the end of 3 years.

As per the question,

We have, the value of the weight of the bacteria = 450 gm

As the rate of bacteria is decreasing with rate of 1/2

So, after 1 year the number of bacteria will be half as it was at the start of the year.

So, the number of bacteria after 1 year will be = 450 *(1/2)=225

As the rate of bacteria is again decreasing with the rate of 1/2

So, after 2 years the number of bacteria will be half as it was at the start of the year.

So, the number of bacteria after 2 years will be = 225 *(1/2)=112.5

As the rate of bacteria is decreasing with the rate of 1/2

So, after 3 year the number of bacteria will be half as it was at the start of the year.

So, the number of bacteria after 3 years will be = 112.5*(1/2)=56.25

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The values in the result of the division operation, 7 ÷ 6 are as follows;

The quotient = 12

The remainder = 4

Please find attached the diagram with the correct values in the boxes created with MS Word

The quotient is the result following the complete division by the devisor. The remainder is the part of the dividend yet to be divided by the divisor.

The division operation is 76 ÷ 6

The quotient is the integer value obtained following the division operation of 76 by 6 which is 12 times. Therefore, the quotient is 12

The values in each box are therefore;

The value at the top left box, is 10

The value in the box below 2 and to the right of 60 is 12

The value outside to the top right of the rectangle is the remainder

The remainder is the difference between the dividend and the product of the quotient and the divisor as follows;

Remainder = 76 - 12 × 6 = 4

The remainder is 4

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Answer: $6

Step-by-step explanation:

60% of 3.75

3.75 * 0.60 = 2.25

2.25 + 3.75 = 6

Step-by-step explanation:

The answer is 2.25 because 60% of 3.75 is equal to 2.25

The rational exponent form is 5^3/5x. Option D

We know that a rational function would be the function that does not have the radical sign in it. We can see that we have the expression that have been written for us here as; 5√125x^5.

When we open up the radical we would have;

125^1/5 * 5^5/5

But we know that;

125 = 5^3

We now have;

5^3/5 * x

This becomes;

5^3/5x

Thus we are going to end up in the rational exponent form of the expression as 5^3/5x.

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Answer:

Obtuse and isosceles

Step-by-step explanation:

Cuz 2 sides and angles are equal and there is one obtuse angle

Answer:

obtuse and isoscelies

Step-by-step explanation:

120 is greater than 90 so obtuse

isoscelies means to sides of equal length and one of different length

2 sides are 3ft and one is 5ft

Quantitative variables provide numerical measures of individuals. The measurements yield useful results and can be added to or removed from.

A quantitative variable is one for which the data display amounts (e.g. height, weight, or age). A categorical variable is one where the data indicate categories. As was discussed in the chapter's section on variables, quantitative variables are those that are measured on a numeric scale.

Height, weight, reaction speed, subjective pain rating, temperature, and exam score are a few examples of quantitative variables.

A quantitative study works with numbers and data, whereas a qualitative study concentrates on words and meanings. Variables can be quantified, and hypotheses can be tested quantitatively. You can go more deeply into concepts and experiences by using qualitative research methods.

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The missing angles are as calculated below. Fill them accordingly.

Trigonometry is a branch of mathematics dealing with the relationship between the ratios of the sides of a right-angled triangle with its angles.

Check the attached image for labeling

a = 125° (vertically opposite angles are equal)

a + b = 180 (sum of angles on a line)

b = 180 - 125 = 55°

b + c = 90  (sum of angles in a triangle)

c = 90 - 55 = 35°

d = b   (alternate angle)

d = 55°

e =   125° (alternate angle)

Fill in the missing angles accordingly

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Answer:

(8,6×10^-3) (8×10^-1)

=(0,0086). ( 0.8)

Answer:    It is the last one on he far right.

Step-by-step explanation:

;)

David's method to find the height of the tree is the use of the properties of similar triangles. The height of the tree is approximately 24 feet

According to the laws of reflection, we have;

Angle of incidence of the light from the top of the tree = Angle of the reflected light ray David sees.

The possible values in the question are;

Distance of the mirror from the tree = 37 feet

Distance from where David is standing to the mirror = 9.3 ft.

Height of his eyes above the ground = 6 ft.

Required: Height of Tree

Therefore;

The triangle formed by David's height, the reflected ray from the mirror and his distance from the mirror is similar to the right triangle formed by the tree, which by the relationship of similar triangles, gives;

[tex]\frac{9.3}{37}[/tex] = [tex]\frac{6}{Height of the Tree}[/tex]

Height of the tree × 9.3 = 6 × 37

Height of the tree = [tex]\frac{6 X 37}{9.3}[/tex] = 23.87 ≅ 24 feet

Therefore, the tree is approximately 24 feet tall

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The percent of Hector's net pay that is automatically withdrawn for savings is  7. 95 %

To find the percentage of Hector's net pay that is being withdrawn for savings in an automatic manner, the formula is:

= Amount withdrawn for savings / Pay before amount is withdrawn x 100 %

Amount withdrawn for savings = $ 122

Pay before amount is withdrawn :
= 1, 413 + 122

= $ 1, 535

The percentage withdrawn is :

= 122 / 1, 535 x 100%

= 7. 95 %

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