You answer 0.8 questions correctly.
a. What percent of the questions did you answer correctly?

you answer 0.8 questions correctly. what percent of the questions did you answer correctly. What fraction of the questions did you answer incorrectly? Use / for fraction and answer

Answer:x=2

Step-by-step explanation:

Answer:

x = 2

Step-by-step explanation:

6 (5x) = (x +14) + (x+17) + (8x+9)

30x = 14 + 17 + 9 + 2x + 8x

20x = 40

x = 40/20

x = 2

The system has infinitely many solutions, which can be written as (x, y, z) = (1 - 60s, -10 + 600s, s) where s is a parameter.

To solve the system of equations:

1x + 0y + 60z = 1

1x + 10y + 0z = 0

0x + 0y + 0z = 0

The third equation is an identity, implying that it does not give us any new information. The first two equations can be used to solve for x, y, and z:

From the first equation, we get x = 1 - 60z

From the second equation, we get y = 0 - 10x = -10(1 - 60z) = -10 + 600z

Therefore, the solution to the system can be written as a point in terms of z as:

(x, y, z) = (1 - 60z, -10 + 600z, z)

Since z can take on any value, there are infinitely many solutions to the system, which can be parameterized as:

(x, y, z) = (1 - 60s, -10 + 600s, s) where s is a parameter.

he system has infinitely many solutions, which can be written as (x, y, z) = (1 - 60s, -10 + 600s, s) where s is a parameter.

For more questions like Equation click the link below:

https://brainly.com/question/29657983

#SPJ11

To calculate the slope of a line you have to use the following formula

Where

(x₁,y₁) are the coordinates of one point on the line

(x₂,y₂) are the coordinates of a second point on the line

For the points (2,5) and (7,15), the slope of a line that crosses them is:

The slope of the line is m=2

The solutions to the equation are x = -1, x = -8, and x = 1/2.

The equation 4x³ + 32x² + 42x - 16 = 0 can be divided throuh by 2 as follows:

2x³ + 16x² + 21x - 8 = 0

We can test each of these possible roots by substituting them into the equation and seeing if we get 0. When we substitute -1, we get 0, so -1 is a root of the equation. We can then factor out (x + 1) from the equation to get:

(x + 1)(2x² + 15x - 8) = 0

We can then factor the quadratic 2x² + 15x - 8 by grouping to get:

(x + 8)(2x - 1) = 0

This gives us two more roots, x = -8 and x = 1/2.

Therefore, the solutions to the equation are x = -1, x = -8, and x = 1/2.

Learn more about equations on

https://brainly.com/question/2972832

#SPJ1

Answer:

i believe its 5/10 or 1/2

Step-by-step explanation:

Dilations involve scaling the figure uniformly along a given center and factor. This process results in an enlarged or reduced version of the original figure, while maintaining the same proportions and shape.

A dilation is a type of geometric transformation that alters the size or shape of a figure while preserving its proportions. It involves scaling the figure uniformly in all directions from a specific center of dilation. The scaling factor determines whether the figure will be enlarged or reduced.

When dilating a figure, each point is moved along a line that passes through the center of dilation. The distance between the original point and the center is multiplied by the scaling factor to determine the new position of the point. If the scaling factor is greater than 1, the figure will be enlarged, while a scaling factor between 0 and 1 will result in a reduction.

The center of dilation can be any point on the plane, and it serves as the reference point from which the scaling occurs. If the center of dilation is outside the figure, the shape will change along with the size. However, if the center is inside the figure, only the size will be affected, and the shape will remain the same.

Learn more about geometric figure: brainly.com/question/31178455

#SPJ11

The dependent variable of interest in examining whether the degree of parental involvement differs based on students' grade in school is the degree of parental involvement.

In this scenario, the independent variable is the students' grade in school (i.e., first, second, third, etc.). The dependent variable is the variable that is expected to be influenced by the independent variable. In this case, the dependent variable of interest is the degree of parental involvement.

The degree of parental involvement refers to the level or extent to which parents are engaged in their child's education and school-related activities. It can encompass various aspects, such as attending parent-teacher meetings, volunteering at school, helping with homework, and participating in school events.

By examining whether the degree of parental involvement differs based on students' grade in school, researchers or educators aim to explore any potential patterns or differences in parental involvement as children progress through different grade levels. This investigation can provide insights into how parental involvement may vary across grade levels and inform strategies to enhance parental engagement in education at specific stages of a child's schooling. Thus, the dependent variable of interest is the degree of parental involvement.

Learn more about dependent variable here:

https://brainly.com/question/1479694

#SPJ11

The constant of proportionality from the proportional relationship is 3/2

A proportional relationship is a mathematical relationship between two variables in which their ratio is always equal. In other words, if x and y are in a proportional relationship, then y/x is always equal to a constant value, called the constant of proportionality. This can be expressed mathematically as y = kx, where k is the constant of proportionality and x and y are the variables in the relationship.

To determine the constant of proportionality, we need to use the proportional relationship given.

y = kx

k = constant of proportionality

3/8 = k(1/4)

Solve for k

k = [(3/8) / (1/4)]

k = 3/2

k = 1.5

Learn more on proportional relationship here;

https://brainly.com/question/11391605

#SPJ1

Horizontal data is not numerical

A graph is a visual representation of data or information that displays the relationship between different variables or data sets. It is a diagram that uses lines, bars, dots, or other symbols to represent data points or values and displays how they are related to each other. Graphs are commonly used in mathematics, science, economics, and many other fields to represent data in a more accessible and easily understandable way.

In the given graph

The comparison is done between Number of stores and Franchise.

Number of stores is placed in y axis

Franchise is placed in y axis

For comparison, no data is given of Franchise as it showing the non numerical.

hence, Horizontal data is not numerical.

To know more about axis, visit:

https://brainly.com/question/1699227

#SPJ1

Answer:

The general form ax+by+c=0 is one of the many different forms you can write linear functions in. Other ones include the slope intercept form y=mx+b or slope-point form.

Answer:

I'm pretty sure it's 12) ( f * g) (x)

Step-by-step explanation:

Let me know if that's wrong and I'll do my best to fix it!

Answer:

39

Step-by-step explanation:

The answer is = 39

1 to the pwer of 1 = 1

3 to the power of 3 = 27

Stephen's average speed for the round trip was 48 mph.

To find Stephen's average speed, we can use the formula:

Average Speed = Total Distance / Total Time

Let's assume the distance from Stephen's house to his aunt's house is 'd' miles.

On the way to his aunt's house, Stephen traveled at a speed of 60 mph. So the time taken for this leg of the trip is given by:

Time = Distance / Speed = d / 60

On the return trip, Stephen traveled at a speed of 40 mph. So the time taken for this leg of the trip is:

Time = Distance / Speed = d / 40

The total time for the round trip is the sum of the times for the outward and return trips:

Total Time = d / 60 + d / 40

To find the average speed, we divide the total distance by the total time:

Average Speed = Total Distance / Total Time

The total distance for the round trip is 2d (since it's the same roadway for both trips).

Average Speed = 2d / (d / 60 + d / 40)

Simplifying this expression, we get:

Average Speed = 2d / ((3d + 2d) / 120) = 2d / (5d / 120) = 2d * 120 / 5d = 240 / 5 = 48 mph

Therefore, Stephen's average speed for the round trip was 48 mph.

For more questions like Speed  click the link below:

https://brainly.com/question/17661499

#SPJ11

The modular inverse of 11, modulo 1000 is 901. Expressing the answer in integer form.

To find the modular inverse of 11  modulo 1000, we need to find an integer x such that \($11x\equiv1\pmod{1000}$\).

One way to find the modular inverse is to use the extended Euclidean algorithm. Using this algorithm, we can find the greatest common divisor of 11 and 1000 and express it as a linear combination of 11 and 1000.

We can then use the coefficients of this linear combination to express 1 as a linear combination of 11 and 1000.

Applying the extended Euclidean algorithm, we have:

1000= 11 *90 + 10

11 = 10 *1 + 1

Working backward, we can express 1 as a linear combination of 11 and 1000:

1 =11 - 10* 1

= 11 - (1000 - 11*90)

= 901 * 11 - 1 *1000

Therefore, the modular inverse of 11 modulo 1000 is 901, since

11*901=1 mod{1000}.

For more details about modular inverse  click here:

https://brainly.com/question/31052114#

#SPJ11

Answer:

A. Please find attached the drawing of the reflector showing the location of the focus created with Microsoft Excel

B. The width of the beam of light projected from the headlight's reflector is approximately 6.93 inches

Step-by-step explanation:

The given equation representing the cross section of the headlight reflector is y² = 6·x

The shape of the reflector = Parabolic

The general equation of a parabola is (y - k)² = 4·p·(x - h)

The focus of the parabola, Focus = (h + p, k)

By comparison to the general equation of a parabola, from the equation of the reflector, we have;

k = 0, h = 0, 4·p = 6

∴ p = 6/4 = 3/2 = 1.5

∴ The focus of the parabola = (1.5, 0)

A. Please find attached the graph of the equation of the cross-section of the reflector, showing the filament at the focus, created with Microsoft Excel

B. The depth of the reflector is x = 2 inches

A vertical or horizontal parabola has two x-values for a given y-value or two y-values for a given x-value respectively

For the given horizontal parabola, the width of a parabola at a point is the difference between the two y-values at the point

At x = 2, we have;

y² = 6 × x = 6 × 2 = 12

∴ y = ±√(12)

The two y-values at x = 2 are y₁ = √(12) and y₂ = -√(12)

The width of the parabola, w = y₁ - y₂

The width of the parabola at x = 2, w = √(12) - (-√(12))

∴ w = √(12) +√(12) = 4·√3

The width of the parabola at x = 2, w = 4·√3 inches

The width of the parabola at x = 2 = The width of the beam of light projected from the headlight's reflector = 4·√3 inches

By giving the answer as a decimal and rounded to the hundredths place, we have;

The width of the beam of light projected from the headlight's reflector ≈ 6.93 inches.

The slope of the line that divides the region bounded by the parabola \(y=5x-3x^2\)and the x-axis into two regions with equal area is 5.

To find the slope of the line that divides the region into two equal areas, we need to determine the point of intersection between the parabola and the x-axis. Since the line passes through the origin, its equation will be y = mx, where m represents the slope.

Setting the equation of the parabola equal to zero, we find the x-values where the parabola intersects the x-axis. By solving the equation\(5x - 3x^2 = 0\), we get x = 0 and x = 5/3.

To divide the region into two equal areas, the line must pass through the midpoint between these x-values, which is x = 5/6. Plugging this value into the equation of the line, we have y = (5/6)m.

Since the areas on both sides of the line need to be equal, we can set up an equation using definite integrals. By integrating the equation of the parabola from 0 to 5/6 and setting it equal to the integral of the line from 0 to 5/6, we can solve for m. After performing the integration, we find that m = 5.

Therefore, the slope of the line that divides the region into two equal areas is 5.

Learn more about: Parabola

brainly.com/question/11911877

#SPJ11

Answer:

then it would 50 no? i first divided 100 from x and game me 100x and then since i knew that 2 plus 3 is 5 and if i add a 0 then it would make 50

Step-by-step explanation:

Answer:

draw the points, and then make the x negative if it is reflection over the X axis, y negative if it is aver the y axis, and both if it is a 180 rotation.

for the reflection over y=x, I don't know an easier method so just count the number of units to the line(don't use pythagorean theorem, just go along the lines of the graph, and repeat on the other side.

Step-by-step explanation:

sorry I couldn't draw it myself

Answer:

4 for each cupcake.

Step-by-step explanation:

Considering the expression of a line, the equation of the line that passes through the points (-9,-7) and (-11,-6) is the equation of the line is y= -1/2x -23/2.

A linear equation o line can be expressed in the form y = mx + b

where

Knowing two points (x₁, y₁) and (x₂, y₂) of a line, the slope m of a line can be calculated as:

m= (y₂ - y₁)÷ (x₂ -x₁)

Substituting the value of the slope m and the value of one of the points in y=mx +b, the value of the "b" can be obtained.

Being (x₁, y₁)= (-9, -7) and (x₂, y₂)= (-11, -6), the slope m can be calculated as:

m= (-6 - (-7))÷ (-11 -(-9))

m= (-6 +7)÷ (-11 +9)

m= (1)÷ (-2)

m= -1/2

Considering point 1 and the slope m, you obtain:

-7= (-1/2)×(-9) + b

-7= 9/2 +b

-7 -9/2= b

-23/2= b

Finally, the equation of the line is y= -1/2x -23/2.

Learn more about the equation of a line having 2 points:

brainly.com/question/12851029

brainly.com/question/19496333

#SPJ1

Answer:

Complex and imaginary number

Step-by-step explanation:

First, let's write the number\(-16.2i\) in the form of \(a+bi\).

\(0+ (-17)i\)

Since \(-16.2i\) can be written in the form of \(a + bi\), where \(a\) and \(b\) are real numbers, it is a complex number.

Also, since \(a=0\), it is also an imaginary number.

\(-16.2i\) is complex and imaginary.

Answer:

21x + 29y - 8

Step-by-step explanation:

(−7x+8x+19y)−(6y+8−20x−16y)

−7x+8x+19y−6y-8+20x+16y

(−7x+8x+20x)+(19y−6y+16y)-8

21x + 29y - 8

Answer: Drawing a red or white marble and Drawing a marble that is not blue

Step-by-step explanation:

To determine which events have a probability greater than 1/5 (0.2), we need to calculate the probability of each event and compare it to 0.2.

Here are three options:

Drawing a blue marble:

The probability of drawing a blue marble can be calculated by dividing the number of blue marbles (2) by the total number of marbles in the bag (2 + 3 + 5 = 10).

Probability of drawing a blue marble = 2/10 = 0.2

The probability of drawing a blue marble is exactly 0.2, which is equal to 1/5.

Drawing a red or white marble:

To calculate the probability of drawing a red or white marble, we need to add the number of red marbles (3) and the number of white marbles (5) and divide it by the total number of marbles in the bag.

Probability of drawing a red or white marble = (3 + 5)/10 = 8/10 = 0.8

The probability of drawing a red or white marble is greater than 0.2 (1/5).

Drawing a marble that is not blue:

The probability of drawing a marble that is not blue can be calculated by subtracting the number of blue marbles (2) from the total number of marbles in the bag (10) and dividing it by the total number of marbles.

Probability of drawing a marble that is not blue = (10 - 2)/10 = 8/10 = 0.8

The probability of drawing a marble that is not blue is greater than 0.2 (1/5).

Therefore, the events "Drawing a red or white marble" and "Drawing a marble that is not blue" have probabilities greater than 1/5 (0.2).

Answer:

can 3x+3x+3x =9x if so what is the value of x?

It's possible 3x+3x+3x=9

=3*(3x) =9

3^(x+1) =3^(2x)

Answer:

288

Step-by-step explanation:

1. 176 = 55% × N

2. 176 = \(\frac{55}{100}\) × N

3. N= 176×\(\frac{100}{55}\)

4. N=320

5. \(\frac{90}{100}\) × 320

=288

Answer:

Answer is below

Step-by-step explanation:

Answer:

u just multiply7×5t

=35t

Step-by-step explanation:

1.5x + 6-3= 4.5x- 2

1.5x+3=4.5x-2

we transposed

4.5x-1.5x= 3+2

3x= 5

we divide both sides by 3

3x/3= 5/3

x= 5/3

Answer:

\(-5xy -13xy=-18xy\)

\(m^8n^1 * m^3n^5=m^{11} n^6\)

Step-by-step explanation:

\(-5xy -13xy=-18xy\)

\(m^8n^1 * m^3n^5\)

\(m^{8+3} =m^{11}\)

\(n^{1+5} =n^6\)

\(m^{11} n^6\)

Hope this helps!