Please help question below

Answer:

Step-by-step explanation:

Let me explain each step in more detail.

Step 1: Calculate the Z-score

The Z-score is a measure of how many standard deviations a value is from the mean. To calculate the Z-score, we use the following formula:

Z = (x - μ) / σ

Where:

x = 9.8 ounces (the value we want to examine)

μ = 10.2 ounces (the mean of the distribution)

σ = 0.12 ounces (the standard deviation of the distribution)

Plugging in the values, we get:

Z = (9.8 - 10.2) / 0.12 = -3.33

This Z-score tells us that 9.8 ounces is 3.33 standard deviations below the mean of 10.2 ounces.

Step 2: Look up the cumulative probability from a Z-table

A Z-table is a table that lists the cumulative probabilities for various Z-scores. The cumulative probability tells us the probability of getting a value less than or equal to a certain Z-score. To use the Z-table, we need to know the Z-score and whether we want the cumulative probability to the left (for values less than) or to the right (for values greater than). In this case, we want the cumulative probability to the left because we want to find the probability of getting a weight less than or equal to 9.8 ounces.

The cumulative probability for a Z-score of -3.33 is approximately 0.0004. This means that there is a 0.0004 (or 0.04%) chance of getting a weight of 9.8 ounces or less in a bag of chips.

Step 3: Interpret the results

Since the cumulative probability is very small, it is highly unlikely that a bag of chips would contain 9.8 ounces or less of chips. Therefore, we can conclude that it is unusual for a bag of chips to contain 9.8 ounces or less.

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Answer:

they all have flat sides except for the cylinder

Step-by-step explanation:

Its okay we all are bad on some things

The low Q₁ is 13 and the median Q₃ is 16.5, the high is 18 and the interquartile range is 3.5

The interquartile range is a measure of dispersion that tells us how spread out the middle 50% of a dataset is. To calculate the IQR, we first need to find the quartiles of the dataset. Quartiles divide a dataset into four equal parts, with the first quartile (Q₁) representing the 25th percentile, the second quartile (Q₂) representing the 50th percentile (also known as the median), and the third quartile (Q₃) representing the 75th percentile.

To find the quartiles of the dataset {10, 13, 13, 14, 15, 15, 16, 17, 18}, we first need to order the data in ascending order:

10, 13, 13, 14, 15, 15, 16, 17, 18

The low is the smallest value in the dataset, which is 10.

To find Q₁, we need to find the value that is 25% of the way through the dataset. Since we have 9 values in our dataset, 25% of 9 is 2.25. This means that Q₁ lies between the 2nd and 3rd values in the dataset, which are both 13. To find the exact value of Q₁, we can take the average of these two values:

Q₁ = (13 + 13) / 2 = 13

The median is the middle value in the dataset, which is 15.

To find Q₃, we need to find the value that is 75% of the way through the dataset. 75% of 9 is 6.75, which means that Q₃ lies between the 6th and 7th values in the dataset, which are 16 and 17, respectively. To find the exact value of Q₃, we can take the average of these two values:

Q3 = (16 + 17) / 2 = 16.5

The high is the largest value in the dataset, which is 18.

Now that we have found the quartiles, we can calculate the IQR by subtracting Q1 from Q₃:

IQR = Q₃ - Q₁ = 16.5 - 13 = 3.5

Therefore, the interquartile range of the dataset {10, 13, 13, 14, 15, 15, 16, 17, 18} is 3.5. This tells us that the middle 50% of the dataset is relatively tightly clustered around the median, with values ranging from 13 to 16.5.

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Note that the size of angle x = 115°. This is a problem relating to the sum of angles in a circle. See the computation below.

The sum of angles in a circle is always equal to 360 degrees or 2π radians.

This means that the sum of the measures of the angles formed by any number of rays or line segments that meet at a common point, or vertex, and whose endpoints lie on the circle, will always add up to 360 degrees or 2π radians. This property is often used in geometry and trigonometry to solve problems involving circles and angles.

With regard to the above problem,

We are given three angles in a circle named as follows:

a) 81°

b) 164°

c) x

The above rule state that

81 + 164 + x = 360°

thus, x = 360 - 81 - 164

x = 360 -245

x = 115°

Thus the value of ∠x is  115°

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Full Question:

See attached image.

Answer: A proper subset of a set A is a subset of A that is not equal to A

Step-by-step explanation:

The polynomial x^2-y^2-3.5(x+y) is factored completely to xy(x - y)

Algebraic expressions are defined as expressions that are made up of coefficients, variables, terms, factors and constants.

They are also composed of arithmetic operations, such as;

x^2-y^2-3.5(x+y)

expand the brackey

x² - y² - 3.5x + 3.5y

Factor the common terms

xy(x - y - 3.5 + 3.5)

collect lie terms

xy(x - y)

Hence, the expression is xy(x - y)

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The Formula will be in form of exponential function that is y=$3200(1.09)ˣ

where x= no. of years.

What exactly are exponential functions?

An exponential function is a mathematical function with the formula f (x) = aˣ, where "x" is a variable and "a" is a constant that is termed the function's base and must be greater than zero. The transcendental number e, which is approximately equal to 2.71828, is the most often used exponential function basis.

Growth that is exponential

The amount expands extremely slowly at first, then rapidly in Exponential Growth. The rate of change accelerates with time. As time passes, the pace of growth accelerates. The quick expansion is designed to represent a "exponential rise".

The exponential growth formula is: y = a (1+ r)ˣ, where r is the growth percentage.

Now,

Initial value=$3200

% increase=9%

then

Amount in x years will  be =3200(1+9/100)ˣ

=3200(109/100)ˣ

=3200(1.09)ˣ

Hence,

           The Formula will be in form of exponential function that is y=$3200(1.09)ˣ

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The coordinates of point H' will be: H'(3, 9)

We know that a translation is basically a transformation that occurs when an object is moved from one place to another place.

The original object's dimensions, orientation, or shape are unaffected by translation.

Translating a point P(x, y) 1 unit up means we need to add to use P'(x, y+1), that is adding 1 unit to the y-coordinate of the point P'(x, y).

Now we have to translate the triangle 1 unit up. So, use the formula

P(x, y) → P'(x, y + 1)

Thus, the coordinates of point H' will be:

H( 3, 8) → H'( 3, 8+1) → H'(3, 9)

Therefore, the coordinates of point H' will be: A'(3, 9).

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Answer: the shadow will extend 43.75m

Step-by-step explanation:

It should be noted that finding the mean gives the average value of a set of numbers, while finding the halfway point gives a value that is equidistant between the two extreme values in the set.

Finding the mean of a set of numbers involves adding up all the numbers in the set and then dividing the sum by the total number of numbers in the set. The mean represents the average value of the set.

Finding the value that is halfway between a set of numbers involves taking the two extreme values in the set and finding the arithmetic average (i.e., adding the two values and dividing by 2). This value represents the midpoint between the two extremes.

In summary, finding the mean gives the average value of a set of numbers, while finding the halfway point gives a value that is equidistant between the two extreme values in the set.

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Felix's English score would be around 72 points if he spends 7 hours a week studying English.

the answer is option b, 72 points.

What is a graph of an equation?

A graph of an equation is a visual representation of the relationship between the variables in that equation. In mathematics, an equation typically involves one or more variables, and the graph of that equation shows how the value of one variable changes as the value of another variable change.

Look at the horizontal axis of the graph to find the point that corresponds to 7 hours of studying per week. In this case, it is approximately halfway between 6 and 8, so we can estimate it to be around 7.

From that point, draw a vertical line up to the graph to find the corresponding English score.

Follow the line until it intersects with the blue line representing Felix's English scores.

From that intersection point, draw a horizontal line over to the y-axis to read the corresponding score.

Based on this analysis, we can estimate that Felix's English score would be around 72 points if he spends 7 hours a week studying English.

Therefore, Felix's English score would be around 72 points if he spends 7 hours a week studying English.

the answer is option b, 72 points.

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Answer:

Step-by-step explanation:

sinX = 18/32

sinX = 0.5625

X = 34.23

Answer:

D

Step-by-step explanation:

We can see that we are not increasing by the same amount.

[tex]\frac{1}{25}= \frac{2}{50} \neq \frac{3}{70} \neq \frac{5}{168}[/tex]

The value of the piecewise function f(-2) + 2f(-1) - f(3) is -14

From the question, we have the following parameters that can be used in our computation:

The definition of a piecewise function

Given that

f(-2) + 2f(-1) - f(3)

Using the definition of the piecewise function and the domain values. we have

f(-2) + 2f(-1) - f(3) = -(-2)^2 + 3(-2) + 2(4(-1)^3) + [(3 + 5)/(3 - 1)]

Evaluate

f(-2) + 2f(-1) - f(3) = -14

Hence, the solution is -14

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The company will be able to purchase enough pens while staying within the budget by purchasing 10 mugs only not more than that.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

Given;

A company has a budget of $305

Company needs to purchase either a mug or a pen for each of its 100 clients.

Price per Mug $5.55 Price per Pen $2.50

Now,

Price of pen = 100*2.50=250

When the number of employees are 10

=10*5.50=55.0

Mugs can be purchased

When the number of employees are 15

=15*5.50=82.5

Mugs cannot be purchased

Therefore, by algebra the answer will be 10 mugs only.

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if the ratio of two sample variances exceeds the critical value of f at a defined confidence level, then the level of confidence also exceeds the critical level.

All tests that make use of the F-distribution are collectively referred to as "F Tests." The F-Test to Compare Two Variances is often what is meant when the term "F-Test" is used. However, a number of tests, including regression analysis, the Chow test, and the Scheffe test, use the f-statistic. If we are conducting an F-Test, we might employ a variety of technological tools. since doing an F-test manually while accounting for variations is a difficult and time-consuming operation.

if the ratio of two sample variances exceeds the critical value of f at a defined confidence level, then the level of confidence also exceeds the critical level.

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The measured value x = 13.

What is parallelogram?

A unique variety of quadrilateral made up of parallel lines is known as a parallelogram. A parallelogram can have any angle between its adjacent sides as long as its opposite sides are parallel. If two opposite sides of a quadrilateral are parallel and congruent, it will be a parallelogram. Consequently, a quadrilateral in which both pairs of opposite sides are parallel and equal is known as a parallelogram.

We can solve this easily using alternative interior angles. A parallelogram's interior is always 360 degrees, right?

In the given parallelogram the side vy = yx

VY = YX = 80 = 6x+2

6x = 80-2=78

x = 78/6= 13

Hence The measured value x = 13.

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If Erin were to lay the index cards in one long row, the row would be 35 inches long.

What is Multiplication?

Multiplication is an arithmetic operation that is used to find the result of combining equal groups of a given quantity. It involves repetitive addition of equal groups, where one factor represents the number of groups, and the other factor represents the number of items in each group.

Solution:

If Erin has 10 index cards, and each index card is 3 ½ inches long, then the total length of the row would be:

10 cards x 3 ½ inches per card = 35 inches

Therefore, if Erin were to lay the index cards in one long row, the row would be 35 inches long.

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The measure of the angles m∠BOX = 77.5° and  m∠AOX = 77.5°.

What is the angle bisector of an angle?

The angle bisector of an angle is a line or line segment that divides the angle into two equal parts, creating two smaller angles that are congruent (i.e., have the same measure). The angle bisector starts from the vertex of the angle and extends to the opposite side or ray of the angle, dividing the angle into two smaller angles that have the same number of degrees.

By the definition of the angle bisector of an angle, the angle bisector divides the angle in two equal measures.

As m∠AOB = 155°

m∠BOX = 1/2 * m∠AOB

m∠BOX = 1/2 * 155

m∠BOX = 77.5°

also m∠AOX = 77.5°

Hence, the measure of the angles m∠BOX = 77.5° and m∠AOX = 77.5°.

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The combination should be 20 of Brand A and 20 of Brand B.

When a linear function is exposed to various constraints, it is maximised or reduced using the mathematical modelling technique known as linear programming. In commercial planning, industrial engineering, and—to a lesser extent—the social and physical sciences, this method has proven helpful for directing quantitative decisions.

Given:

Each bag of type x costs P400 and contains 100 units of calcium and 400 units of protein.

Each bag of type y costs P600 and contains 200 units of calcium and 200 units of protein.

So, Max Z = 400x + 600 y

Constraints:

100x + 200 y ≤ 6000

or, 400x + 200y ≤ 12000

Solving the Equation:

300x = 6000

x= 20

and, y= 20

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Answer: X^2+6.8^2=10.6^2

Step-by-step explanation:

The pythagorean theorem can be used to find the missing sides of triangles.

The formula is:

a^2+b^2=c^2, where c^2 is always the hypotenuse (the biggest and diagonal line) and a^2 and b^2 are the other side lengths

In this problem, plug in the values. So in this case, you have:

a^2+6.8^2=10.6^2

Hope this helps

16.7, 6.7 and 22 degrees respectively are the measures of a, c and m<C

The given diagram is a triangle with the following sides

Hypotenuse = AC = 18

m<A = 68 Degrees

We need to determine the measure of a, b and m<C

Using the trigonometry identity

sin 68 = a/18

a = 18sin68

a = 16.7

Similarly;

cos68 = c/18

c = 18cos68

c = 6.7

Since the sum of angles in a triangle is 180 degrees, hence:

m<C = 90 - m<A

m<C = 90 - 68

m<C = 22 degrees

Hence the measure of a, c and m<C is 16.7, 6.7 and 22 degrees respectively.

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The potential energy of the roller coaster car at the top of a hill is 661,068.8 J.

The correct answer choice is option D

Potential energy is a form of energy which is dependent on the relationship between different system components.

The gravitational constant, g = 9.8 m/s².

Mass, m = 1088 grams

Height, h = 62 meters

So, The amount of potential energy the car has;

PE = mgh.

PE = 1088 × 9.8 × 62

PE = 661,068.8J

Ultimately, the car has a potential energy of 661,068.8J.

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If AD = 12 and BD = 36 in the right triangle ABC with altitude BD was drawn to hypotenuse AC, then the length of AC is 12√82.

What is the similarity law for triangles?

It is defined as the law to prove that two triangles have the same shape, but it is not compulsory to have the same size. The ratio of the corresponding sides is in the same proportions and the complementary angles are congruent.

We can use the property of similar triangles to find the length of AC.

Since BD is an altitude of triangle ABC, we can write:

(AD)(DC) = (BD)²

Substituting the given values, we get:

12(DC) = 36²

Solving for DC, we get:

DC = (36)²/12 = 3 x 36 = 108

Now, using the Pythagorean theorem, we can write:

(AC)² = (AD)² + (DC)²

Substituting the given values, we get:

(AC)² = 12² + 108²

Simplifying and solving for AC, we get:

AC = √(12² + 108²) = √(12² x (1 + 9²)) = 12 x √(1 + 9²) = 12 x √(82)

Therefore,  If AD = 12 and BD = 36 in right triangle ABC with altitude

BD was drawn to hypotenuse AC, then the length of AC is 12√82.

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The annual percentage rate is 19.59%.

An expression contains terms with addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Repayment months =  48

Interest rate = 10%

The annual percentage rate.

=  (2 x repayment months x interest rate) ÷ (repayment months + 1)

= (2 x 48 x 10/100) / (48 + 1) x 100

= (2 x 48 x 0.10) / 49 x 100

= 9.6/49 x 100

= 0.1959 x 100

= 19.59%

Thus,

The annual percentage rate is 19.59%.

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The given graph is represented by the function ( x + 2 )(x - 1 )³(x - 3 ). The correct option is A.

The expression that established the relationship between the dependent variable and independent variable is referred to as a function. In the function as the value of the independent variable varies the value of the dependent variable also varies.

Graphing functions involve drawing a curve on the coordinate plane that represents the function. Every point on a curve (graph) that represents a function satisfies the function equation.

The graph is represented by the function,

( x + 2 )(x - 1 )³(x - 3 )

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The triangles are congruent using: 1. LM = LO - segments of the same length as given. 2. LN = LN - common segment. 3. Angle MLN = Angle OLN - LN bisects the angle. 4. ΔMLN ≅ ΔOLN - SAS criteria.

A triangle is a closed polygon with three line segments that intersect at each of its three angles.

When the sides and angles of two triangles match, the triangles are said to be congruent. Thus, two triangles can be placed side by side and angle by angle on top of one another.

Given that the segments LM = LO, and LN bisects angle MLO.

Thus,

1. LM = LO - segments of the same length as given.

2. LN = LN - common segment

3. Angle MLN = Angle OLN - LN bisects the angle.

4. ΔMLN ≅ ΔOLN - SAS criteria.

Hence, the triangles are congruent using: 1. LM = LO - segments of the same length as given. 2. LN = LN - common segment. 3. Angle MLN = Angle OLN - LN bisects the angle. 4. ΔMLN ≅ ΔOLN - SAS criteria.

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multiply the second equation by -1, you get

y=5x-10

-y=3x-14

add both of the equations together

0=8x-24

then

24=8x

x=3

to find y replace x in one of the original equations

y=5x-10

y=5(3)-10

y=15-10

y=5

(x,y)

(3,5)