Which linear equation shows a proportional relationship

Y=4
Y= 1/2 x
Y = 2x + 3
Y = -3/2 x -1

Answer: 82

Step-by-step explanation:

Sorry if I'm wrong but I hope this helps! :)

The best equation that describes the lined graph is: C. y= -3x - 3

To determine the best description for the lined graph, we have to insert several values for x and see what that gives us as the value of y. After doing this, we will crosscheck against the values in the graph. First, at x = 0, the value of y = -3.

On the lined graph, we see that the values correspond. Also, at x = 1, the value of y becomes -6. On the lined graph, this also corresponds so, the selected equation matches the description of the lined graph.

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The number that belongs on the green box is given as follows:

g = 11.08.

Suppose we have a triangle in which:

The lengths and the sine of the angles are related as follows:

[tex]\frac{\sin{A}}{a} = \frac{\sin{B}}{b} = \frac{\sin{C}}{c}[/tex]

The sum of the internal angles of a triangle is of 180º, hence the missing angle is given as follows:

120 + 37 + x = 180

157 + x = 180

x = 23º.

Then the relation to obtain the number in the green box is given as follows:

sin(23º)/5 = sin(120º)/g

g = 5 x sine of 120 degrees/sine of 23 degrees

g = 11.08.

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The mathematical function that is modeled in this table is C) f(x) = 1,000(0.80)ˣ⁻¹.

A mathematical function is described as an equation, expression, rule or law defining the relationship between the independent variable and dependent variable.

For instance, there are many types of functions, including:

Initial value = 1,000

Percentage of decrease = 20%

Decay factor = 0.80 (1 - 0.20)

x          f(x)       Using Option C:

1        1,000      1,000(1)

2         800       1,000(0.80)¹

3         640       1,000(0.80)²

4          512       1,000(0.80)³

Thus, the correct function is Option C.

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number 4

studied this before if no correct must be a error

The Expression x^2 - 6x + 9 when x = 2 + i   is -2i

To evaluate the expression x^2 - 6x + 9 when x = 2 + i, we substitute the value of x into the expression:

(2 + i)^2 - 6(2 + i) + 9

Simplifying the first term, we get:

(2 + i)^2 = 2^2 + 2(2)(i) + i^2 = 4 + 4i + i^2

Since i^2 = -1, we can substitute that in and simplify further:

(2 + i)^2 = 4 + 4i - 1 = 3 + 4i

Now we substitute this into the original expression:

(2 + i)^2 - 6(2 + i) + 9 = (3 + 4i) - 6(2 + i) + 9

Simplifying further, we get:

= 3 + 4i - 12 - 6i + 9

= 0 - 2i

= -2i

Therefore, the value of x^2 - 6x + 9 when x = 2 + i is -2i.

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Answer:

1500

Step-by-step explanation:

The most reasonable conclusion based on the given information is: Salad Supreme is increasing the number of restaurants by 10% each year. Option B

Based on the given equation y = 195(1.10)^x, where x represents the number of years since 2005 and y represents the number of Salad Supreme restaurants, we can draw the following conclusions:

A. Salad Supreme had 110 restaurants in 2005: This conclusion is not supported by the given equation.

B. Salad Supreme is increasing the number of restaurants by 10% each year: This conclusion is supported by the equation.

C. Salad Supreme is increasing the number of restaurants by 195 each year: This conclusion is not supported by the equation.

D. Salad Supreme is increasing the number of restaurants by 110% each year: This conclusion is not supported by the equation. The growth factor of 1.10 (or 10%) indicates a 10% increase each year, not 110%.

Therefore, the most reasonable conclusion based on the given information is: Salad Supreme is increasing the number of restaurants by 10% each year.

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The ratio of the volumes between the two similar solids is 216:343.

If two solids are similar, their corresponding sides are proportional. Let's assume that the ratio of the linear dimensions between the two similar solids is k:

If the ratio of the surface areas between the two solids is 36:49, then the ratio of the areas of corresponding surfaces is also 36:49.

Since the surface area of a solid is proportional to the square of its linear dimensions, we can write:

(Linear dimensions of first solid)² : (Linear dimensions of second solid)² = 36:49

Simplifying this equation, we get:

k² : 1 = 36:49

Solving for k, we get:

k = √(36/49) = 6/7

Therefore, the ratio of the volumes between the two similar solids is:

k³ : 1³ = (6/7)³ : 1 = 216/343 : 1

Simplifying this expression, we get:

216:343

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After considering all the given data we reach  the conclusion that the probability of randomly selecting a point that falls in the red shaded triangle is 0.30.

To evaluate the probability that a randomly selected point within the circle falls in the red shaded triangle, we have  to calculate the ratio of the area of the red shaded triangle to the area of the circle.
Let us consider that the radius of the circle is 4 cm. The area of the circle is
πr² = 3.14 × 5²
= 78.5 cm².
The concerned area of red shaded triangle is
(1/2) ×(3 + 3) × (8)
= 1/2 × 6 × 8
= 24 cm².
Therefore, the probability of randomly placing the point on the red part of the triangle is
P = Area of Triangle / Area of Circle = 24 / 78.5
≈ 0.30
So, P = 0.30 rounded to the nearest hundredth.
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The future value of the emergency fund after 6 years will be approximately $159,321.50.

To calculate the future value of the emergency fund using annuity due tables, we need to break down the given information and apply the appropriate formulas.

Given:

Sienna health and fitness deposits $5000 at the beginning of each three months.

The deposits have been made for the last 6 years.

The interest rate is 8% compounded quarterly.

To calculate the future value of the emergency fund, we need to determine the number of compounding periods and the interest rate per period.

Number of compounding periods:

Since the deposits are made every three months for 6 years, we have:

6 years * 4 quarters/year = 24 compounding periods.

Interest rate per period:

The interest rate is 8% per year, compounded quarterly. To find the interest rate per quarter, we divide it by 4:

8% / 4 = 2% per quarter.

Now, using the annuity due tables 12-1, we can find the future value factor for 24 periods at an interest rate of 2% per quarter. Let's denote this factor as FV.

Using the annuity due table, we find that the future value factor for 24 periods at 2% per quarter is 31.8643.

To calculate the future value of the emergency fund, we multiply the quarterly deposit amount ($5000) by the future value factor (31.8643):

Future Value = $5000 * 31.8643 = $159,321.50

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Answer:

2/8, 3/8, and 4/8

Step-by-step explanation:

Answer:

Step-by-step explanation:

There are 96 cells

The total area of the prism is (a) 120 + 20k in terms of k

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

The pentagonal prism

The total area of the prism is calculated as

Area = 2 * Pentagon + 5 * Rectangle

Given that

P = 20 and

Apothem, a = k

We have

Pentagon = 1/2 * 20 * k

Pentagon = 10k

Next, we have

Rectangle = 6 * P/5

So, we have

Rectangle = 6 * 20/5

Rectangle = 24

Recall that

Area = 2 * Pentagon + 5 * Rectangle

So, we have

Area = 2 * 10k + 5 * 24

Evaluate

Area = 20k + 120

Hence, the total area of the prism is (a) 120 + 20k

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To find the total area of a prism, we need to add up the area of all its faces. The given prism has a rectangular base with length 20 inches and width 6 inches. The area of the base is therefore 20 x 6 = 120 square inches.

The prism also has two congruent rectangular faces, each with a length of 20 inches and a height of K inches. The area of each face is therefore 20K square inches. Since there are two such faces, their total area is 2 x 20K = 40K square inches.
Finally, the prism has two more rectangular faces, each with a length of 6 inches and a height of K inches. The area of each face is therefore 6K square inches. Since there are two such faces, their total area is 2 x 6K = 12K square inches.
Adding up all the face areas, we get:
120 + 40K + 12K = 120 + 52K
Therefore, the total area (in terms of K) of the prism is 120 + 52K square inches.

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Answer:

Ian has 14 more pieces of brown fabric than green fabric. (In meters its 2 1/6 more)

Step-by-step explanation:

Since the difference between the areas of the two rectangles is 64 cm², it has been proven that it is equal to x² - 2x - 35 = 0.

In Mathematics and Geometry, the area of a rectangle can be calculated by using the following mathematical equation:

A = LB

Where:

Area of rectangle M = L × B

Area of rectangle M = (x - 3) × (3x + 4)

Area of rectangle M = 3x² - 5x - 12

Area of rectangle N = L × B

Area of rectangle N = (x + 2) × (x - 3)

Area of rectangle N = x² - x - 6

Difference = Area of rectangle M - Area of rectangle N

Difference = 3x² - 5x - 12 - (x² - x - 6)

Difference = 3x² - 5x - 12 - x² + x + 6

64 = 2x² - 4x - 6

0 = 2x² - 4x - 6 - 64

0 = 2x² - 4x - 70

By dividing all through by 2, we have:

0 = x² - 2x - 35

x² - 2x - 35 = 0 (Proven).

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

From the given table, the following statements can be determined:

C. There is a y-intercept at (-12, 0).

B. In the interval from x = -4 to x = 0, F(x) is decreasing.

A y-intercept is the point where the graph of a function intersects the y-axis. In this case, the y-intercept is at (-12, 0), which means that when x = 0, the value of f(x) is 0.

A function is decreasing in an interval if the values of the function decrease as the input values increase. In this case, we can see that the values of f(x) decrease as x increases from -4 to 0.

The statement A is incorrect because there is only one x-intercept at (0, 4). The statement D is incorrect because there is no line of symmetry at x=0.5.

Therefore, the statements C and B can be determined from the given table.

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The amount of money that you would have by day 30 would be $ 2, 147 ,483 ,646.

To find the total amount of money you would have by day 30, we can use the formula for the sum of a geometric progression:

Sum = a x ( 1 - r ⁿ ) / ( 1 - r )

The sum would be the amount after 30 days which is:

Sum = 2 x  (1 - 2 ³⁰ ) / ( 1 - 2 )

Sum = 2 x ( 1 - 1, 073, 741,824 ) / ( - 1 )

Sum = 2 x (- 1 ,073 ,741,823) / ( -1 )

Sum = $ 2, 147 ,483 ,646

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Answer:

To find the solution to the inequality 9 - y > 12, we need to isolate the variable y.

9 - y > 12

Subtract 9 from both sides:

-y > 12 - 9

-y > 3

Since we have a negative coefficient for y, we need to flip the inequality sign when multiplying or dividing by a negative number. In this case, we can multiply both sides of the inequality by -1 to simplify it further:

y < -3

The inequality states that y is less than -3.

Now let's check which value among the given options satisfies this inequality:

A) 2: 2 is not less than -3. It is greater.

B) -6: -6 is less than -3. It satisfies the inequality.

C) 8: 8 is not less than -3. It is greater.

D) -1: -1 is less than -3. It satisfies the inequality.

Based on the given options, the values that satisfy the inequality y < -

Step-by-step explanation:

Answer:

Step-by-step explanation:

each row will have 5 sports items and 3 toys items, for a total of 8 gifts per row.

The greatest number of gifts that can be put per row and make each row the same is 10.

The greatest number can divide the numbers into equal parts.

It is called the greatest common factor.

To find the greatest number of gifts that can be put per row and make each row the same, we need to find the greatest common factor (GCF) of 50 and 30.

The factors of 50 are: 1, 2, 5, 10, 25, 50

The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30

The common factors of 50 and 30 are: 1, 2, 5, 10

Therefore, the greatest number of gifts that can be put per row and make each row the same is 10.

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Answer:

(a) 5.3 grams

(b) 0.2 years

Step-by-step explanation:

(a) Step 1:  Since we're already given A0, we simply plug in 0.5 for t to find A(0.5), aka the amount of Thorium-234 remaining after 0.5 years:

[tex]A(0.5)=1000e^(^-^1^0^.^4^9^8^*^0^.^5^)\\A(0.5)=1000e^(^-^5^.^2^4^9^)\\A(0.5)=5.252768542\\A(0.5)=5.3[/tex]

Thus, the amount of Thorium-234 remaining after 0.5 years is approximately 5.3 grams.

(b) We plug in 115 for A(t) and 1000 for A0.  Then, we must solve for t: Thus, our equation to solve for t, time in years, is

[tex]115=1000e^(^-^1^0^.^4^9^8^t^)[/tex]

Step 1:  Divide both sides by 1000.

115/1000 = e^(-10.498t)

0.115 = e^(-10.498t)

Step 2:  Take the natural log (ln) of both sides.

ln(0.115) = ln(e^(-10.498t))

Step 3:  According to the rules of natural logs, we can bring -10.498t down and multiply it by ln(e) on the right-hand side of the equation:

ln(0.115) = -10.498t * ln(e)

ln(0.115) = -10.498t * 1

ln(0.115) = -10.498t

Step 4:  Now, we divide both sides by -10.498 and round the result to find out after about how many years will 115 grams of thorium-234 be remaining:

(ln(0.115) = -10.498t) / -10.498

0.2060223996 = t

0.2 = t

Thus, there will be 115 grams of thorium-234 remaining after about 0.2 years

Answer:

Step-by-step explanation:

complementary is 90 degrees

Answer:

1/30

Step-by-step explanation:

All of the colours have the same probability of being spun. 5 colours.

So, P(spinning a green) = 1/5.

6-sided to a die.

So, P(rolling a 5) = 1/6

P(spinning a green AND rolling a 5) = (1/5) X (1/6) = 1/30

Please give the brainliest, really appreciated. Thank you

Answer:

1/30

Step-by-step explanation:

i got this answer because the probability of spinning green is 1/5, as there are 5 colors including green.

The probability of rolling 5 is 1/6, as there are 6 numbers including 5.

However, the questions asks for the probability of green and rolling 5, so I simply multiplied 1/6 and 1/5 and got 1/30.

I apologize if I misunderstood the question and answered it wrong.

The value of P(B) is simply the conditional probability of B given A, which is 0.3.

Given that events A and B are independent with P(A) = 0.63 and P(B|A) = 0.3, we can use the formula for the probability of independent events to find P(B).

P(B|A) = P(B)

Therefore, P(B) = 0.3.

Since events A and B are independent, the probability of B occurring is not affected by whether or not A occurs. Therefore, the value of P(B) is simply the conditional probability of B given A, which is 0.3.

Rounding to the nearest thousandth, P(B) is 0.300.

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We can infer that the point (8, -15) was reflected over the y-axis to (-8, -15) based on the change in the x-coordinate while the y-coordinate stays the same.

The y-axis reflected the point (8, -15) over to (-8, -15).

The x-coordinate changes its sign but the y-coordinate stays the same when a point is mirrored over the y-axis.

In this instance, the y-coordinate, -15, remains constant but the x-coordinate, 8, of the original point changes to -8 in the reflected point.

This shows that the y-axis is where the reflection took place.

Imagine a coordinate plane with the x-axis running horizontally and the y-axis running vertically in order to see this.

As a vertical mirror, the y-axis reflects points on either side of it.

When a point crosses the y-axis in reflection, it effectively flips to the other side of the axis while keeping its y-coordinate.

In this case, the point (8, -15) is initially situated in the positive x-direction on the right side of the y-axis.

After reflection, it becomes (-8, -15) and appears on the left side of the y-axis in the negative x-direction.

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Answer:

The point is reflected to the Y-axis. It can be either A or B, but I mostly positive it's A.

Step-by-step explanation:

Good luck on the final module exam! I'm counting on you.

The value of angle marked 2xand x in the figure is

2x = 60

x = 30

The value of the angle is solved using complementary angles. These helps us arrive at the equation 2x + x = 90

solving for x

2x + x = 90

(2 + 1)x = 90

3x = 90

3x/3 = 90/3

x = 30

There fore

x = 30

2x = 2 * 30 = 60

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Activity: "Percentage Analysis in Real-Life Situations"

Objective: The objective of this activity is to help learners recognize the practical application of percentages in various social situations. It aims to develop their critical awareness of how percentages are used in real-life contexts and their significance in social, environmental, cultural, and economic relations.

Procedure:

1. Provide learners with a set of real-life scenarios, such as a discount sale, population growth, or budget allocations.

2. Ask them to identify the relevant information and calculate percentages based on the given data.

3. In small groups, learners discuss and analyze the implications of these percentages in the given social situations.

4. Encourage learners to think critically about how percentages impact decision-making, resource allocation, and understanding social phenomena.

5. Have groups present their findings and engage in a class discussion about the significance of percentages in these scenarios.

Teaching and Learning Approach:

This activity promotes an active learning approach by engaging learners in real-life problem-solving. It helps them recognize the practical relevance of percentages and fosters critical thinking skills.

By connecting mathematical concepts to social situations, learners develop a deeper understanding of how percentages are utilized in various aspects of their lives.

The teacher's role is to facilitate discussions, provide guidance, and encourage learners to articulate their understanding of the connections between mathematics and real-world contexts.

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The angle between the vectors is given as follows:

θ = 60º.

The formula for the angle between the vectors in this problem is given as follows:

cos(θ) = uv/(|u||v|)

The vectors are given as follows:

The dot product between the vectors is given as follows:

uv = <-2,3><1,2> = -2 + 6 = 4.

The norms for each vector are given as follows:

Applying the arccosine function, the angle is given as follows:

[tex]\theta = \arccos{\left(\frac{4}{\sqrt{13} \times \sqrt{5}}\right)}[/tex]

θ = arccos(0.49613893835)

θ = 60º. (approximately).

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