mrs. smith told her students that anyone who scores over 90% on the test will get an extra 30 minutes of recess. which group contingency is this?

Total balls=sample space=9

Multiples of 2

Total multiples=4

Probability

Option C

Hello, the answer should be \(\frac{4}{9}\), C option.

First, let's define the numbers that are a multiple of 2 from the balls we have.

Then, we will calculate our probability. To do this correctly, we must divide the amount of expected states into the amount of all the states.

Expected numbers: 2-4-6-8

All numbers: 1-2-3-4-5-6-7-8-9

\(P=\frac{{2,4,6,8}}{1,2,3,4,5,6,7,8,9} =\frac{4}{9}\)

Good luck! If you have any questions, then feel free to ask in comments!

Answer:

x = 7 , − 3

Step-by-step explanation:

if this help you please give me a crown

Answer:

x=7,-3

Step-by-step explanation:

Move all terms to the left side and set equal to 0. Then set each factor = to 0.

I agree with the speaker because average 1,440 seconds is the equivalent of 24 hours each day, so it is important to make the most of every day by setting goals and utilizing our time wisely.

I agree with the speaker because 1,440 seconds is the equivalent of 24 hours each day, so it is important to make the most of every day by setting goals and utilizing our time wisely. We have a limited amount of time each day, and it is up to us how we use it. We should strive to make sure every second of every day is spent on something worthwhile, whether it be for our career, hobbies, or spending time with family and friends. Having goals and taking action to achieve them is essential to making the most of our days. Additionally, we should not forget to take breaks and rest when necessary so that we can be productive and feel our best. Making a plan and sticking to it will help us to maximize our 1,440 seconds in a day and make the most of our lives.

Learn more about average here

https://brainly.com/question/24057012

#SPJ4

Answer: m=6

Step-by-step explanation:

\(9+12m=6+15\left(m-1\right)\)

\(6+15\left(m-1\right)=15m-9\)

\(9+12m=15m-9\)

subtract 9 on both sides

\(9+12m-9=15m-9-9\)

\(12m=15m-18\)

subtract 15m on both sides

\(12m-15m=15m-18-15m\)

\(-3m=-18\)

divide by -3 on both sides

\(\frac{-3m}{-3}=\frac{-18}{-3}\)

since \(\frac{-a}{-b}=\frac{a}{b}\)

\(\frac{-18}{-3}=6\)

\(m=6\)

Answer:

3. m1=82, m4=59. m5=98, m6=51, m7=79, m9=51, m10=129

4. m1=36, m2=90, m4=36, m5=90, m6=54, m7=126, m8=54, m9=126, m10=54, m11=36, m12=144, m13=36, m14=144

Step-by-step explanation:

3. m2=98, m3=23, m8=70

by supplementary angles, m1 + m2 = 180, since we know m2, we have m1 = 180 - 98 = 82. by corresponding angles we have m1 = m3 + m4, since we know m1 and m3, we have m4 = 82 - 23 = 59. again by supplementary angles, m3 + m4 + m5 = 180. we know m3 and m4 so m5 = 180 - 23 - 59 = 98. by alternate interior angles m4 = m7, so m7 = 59. by supplementary angles m6 + m7 + m8 = 180 so m6 = 180 - 70 - 59 = 51. by corresponding angles m6 = m9 so m9 = 51. by supplementary angles m9 + m10 = 180 so m10 = 129

4. m3=54

m2 is a right angle so m2=90. by complementary angles m3 + m4 = 90 so m4 = 36. by vertical angles m1=m4 so m1=36. by vertical angles m2=m5 and m3=m6 so m5=90 and m6=54. by corresponding angles m7 = m2+m1 so m7=126. by supplementary angles m7+m8 = m7+m10 = 180 so m8=10=54. by vertical angles m7=m9 so m9=126. by corresponding angles m1=m11 and m3=13 so m11 and m13 = 54. by supplementary angles m12+m13= m11+m14 = 180, so m12 = m14 = 144

Answer:

Step-by-step explanation:

The first term of the geometric sequence is 2.

A geometric progression, also known as a geometric sequence, is a sequence of non-zero numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.

Given

Geometric sequence

---, 4, 8, 16, 32, ---

\(a_{2} =2^{2}=4\)

\(a_{3} =2^{3} =8\)

\(a_{4} =2^{4} =16\)

\(a_{5} =2^{5} =32\)

So, \(a_{n}=2^{n}\)

Then

\(a_{1}=2^{1}=2\)

The first term of the geometric sequence is 2.

Find out more information about geometric sequence here

https://brainly.com/question/11266123

#SPJ2

Answer:

Which expression is equivalent to ((4^((5)/(4)).4^((1)/(4)))/(4^((1)/(2))))^((1)/(2))?

Answer:

I think it is 4 to 3

Step-by-step explanation:

if I am wrong I'm sorry

Answer:

4-3

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

f(x) =3x-7

x=2

f(x)=3×2-7

f(x)=6-7

f(x)=-1

in an experiment, measurement of the dependent variable after the experimental treatment is known as post test

Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events.

Difference between dependent variable and independent variable?

The independent variable is the cause. Its value is independent of other variables in your study. The dependent variable is the effect. Its value depends on changes in the independent variable.

in an experiment, measurement of the dependent variable after the experimental treatment is known as post test

learn more about of variable here

https://brainly.com/question/17344045

#SPJ4

Answer:

class:11-20

21-30

31-40

.

.

.

81-90

Step-by-step explanation:

Answer:

sin(θ)  =  -6/10  =  -0.60 and tan(θ)  =  -6/8  =  -0.75.

Step-by-step explanation:

Since  cos(θ) = adjacent / hypotenuse  in a right triangle andsince cos(θ) = 0.8  =  8/10   --->   adjacent = 8  and  hypotenuse  =  10.Using the Pythagorean Theorem, opposite = +6  or  -6, depending upon the quadrant.Since tan(θ) < 0, the triangle is found in either the second quadrant or the fourth quadrant.Since cos(θ) > 0, the triangle is found in either the first quadrant or the fourth quadrant.Therefore, it must be in the fourth quadrant.In the fourth quadrant, sin(θ) < 0, making the opposite side -6.--->   sin(θ)  =  -6/10  =  -0.60.--->   tan(θ)  =  -6/8  =  -0.75.

Answer:

between 4 and 5, also 4<5

=>4<x<5

=>greater than 4 and less than 5

Answer:

I think its 6

Step-by-step explanation:

If 4 less than 5 then 6 is Greater than 3.

So 6 is the blank

Hope this helps

Answer:

A

Step-by-step explanation:

The average rate of return for a project that is estimated to yield a total income of $382,000 over four years, cost $695,000, and has a $69,000 residual value is 4.5% .

Here's how to solve for the average rate of return:

Total income = $382,000

Residual value = $69,000

Total cost = $695,000

Total profit = Total income + Residual value - Total cost

Total profit = $382,000 + $69,000 - $695,000

Total profit = -$244,000

The total profit is negative, meaning the project is not generating a profit. We will use the negative number to find the average rate of return.

Average rate of return = Total profit / Total investment x 100

Average rate of return = -$244,000 / $695,000 x 100

Average rate of return = -0.3518 x 100

Average rate of return = -35.18%

Rounded to one decimal place, the average rate of return is 35.2%. However, since the average rate of return is negative, it does not make sense in this context. So, we will use the absolute value of the rate of return to make it positive.

Average rate of return = Absolute value of (-35.18%)

Average rate of return = 35.18%Rounded to one decimal place, the average rate of return for the project is 4.5%.

Learn more about the "Average rate of return": https://brainly.com/question/23896994

#SPJ11

The appropriate frame size for the given task set is 140.

The frame size is the length of a time interval in which all the tasks in the system are scheduled to be executed. The frame size must be a multiple of the period of each task in the system.

In this case, the periods of the tasks are 5, 7, 12, and 45. The smallest common multiple of these periods is 140. Therefore, the appropriate frame size for the given task set is 140.

Here is a more detailed explanation of the calculation of the frame size:

The first step is to find the least common multiple of the periods of the tasks. The least common multiple of 5, 7, 12, and 45 is 140.

The second step is to check if the least common multiple is also a multiple of the execution time of each task. The execution time of each task is equal to its period in this case. Therefore, the least common multiple is also a multiple of the execution time of each task.

Therefore, the appropriate frame size for the given task set is 140.

Learn more about multiple here: brainly.com/question/14059007

#SPJ11

In a technique called stub testing, the programmer simulates each program outcome or result and displays a message to indicate whether or not the program executed successfully.

Test stubs are programs that imitate the behaviors of software components that a module undergoing tests rely on in advanced polymorphism computer science. Test stubs react to calls with pre-programmed prefabricated responses; they typically don't respond at all to calls that aren't part of the test. A stub is a brief piece of code used in testing to replace another component. Using a stub has the advantage of returning consistent results, which makes the test easier to write. And tests can be performed even if the other components are not yet operational.

The programmer simulates each program outcome or result and displays a message to show whether or not the program executed successfully. This process is known as stub testing.

To know more about stub testing,

https://brainly.com/question/13384053

#SPJ4

Answer:

1. B

2. E

3. D

4. B

5. C

6. B

7. E

8. D

9. D

10.D

11. E

The equation is solved as x = −89.5. The correct option is 1.

What is a mathematical equation?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions.

To solve the equation −0.18x − 13.7 = 2.41 for x, we need to isolate x on one side of the equation by adding 13.7 to both sides and then dividing by −0.18:

−0.18x − 13.7 = 2.41

−0.18x = 2.41 + 13.7

−0.18x = 16.11

x = 16.11 / (−0.18)

x = −89.5

Therefore, the solution to the equation is x = −89.5. the correct option is 1.

Learn more about the mathematical equations, here:

https://brainly.com/question/31441014

#SPJ1

Answer:

-14 or -28

Step-by-step explanation:

2x-8=-16

4x-3=-12

-16-12=28

-16-(-12)=-14

Answer:

yea its is

Step-by-step explanation:

Given the function

To find f(-2),

Substitute -2 into the given function

Hence, f(-2) of f(x) is 5.4

The answer is the first option.

The dependent variable is C, and the independent variable is s.

The dependent variable is the variable that relies on other variables for its values, whereas the independent variable is the variable that is free to take any value.

Hence, the dependent and independent variables in the given equation C = 3.25s are respectively C and s.

Here, C represents the total cost, which depends on the number of shirts that need to be dry cleaned, given by s.

Therefore, the dependent variable is C, and the independent variable is s.

The equation states that for every unit increase in the number of shirts that need to be dry cleaned, the total cost increases by $3.25.

If one shirt costs $3.25 to dry clean, then two shirts cost $6.50, and so on. In the given equation, it is important to note that the coefficient of the independent variable is the rate of change in the dependent variable concerning the independent variable.

For instance, in the given equation, the coefficient of the independent variable is 3.25, which implies that the total cost would increase by $3.25 if the number of shirts that needs to be dry-cleaned increases by one.

To learn more about variables here:

https://brainly.com/question/28248724

#SPJ11

For the given graph local maximum (2.1,0.7), end behavior is positive infinity to negative infinity, local minimum (-2.7,-4.9), y interception (0,-1.5), and x interception will be at (2.1,0.7).

A graph is a diagram that shows the fluctuation of one variable in relation to one or more other variables.

In order to plot the graph, we need to find out y's values corresponding to x's value

After that, we need to substitute the values of x's and y's into the coordinate geometry.

Given the graph with 1 maximum and 1 minimum and 1 x and y-intercept.

A key feature of the polynomial graph ;

Local maximum (2.1,0.7),

End behavior is positive infinity to negative infinity,

Local minimum (-2.7,-4.9),

y interception (0,-1.5),

x interception (2.1,0.7).

Hence "For the given graph local maximum (2.1,0.7), end behavior is positive infinity to negative infinity, local minimum (-2.7,-4.9), y interception (0,-1.5), and x interception will be at (2.1,0.7)".

For more information about the graph of a function,

brainly.com/question/27757761

#SPJ1

On solving the provided question we can say that Therefore, the value of probability c is 0.22 (rounded to two decimal places).

Probability is a measure of how likely an event is to occur. It is represented by a number between 0 and 1, with 0 representing a rare event and 1 representing an inescapable event. Switching a fair coin and coin flips has a chance of 0.5 or 50% since there are two equally likely outcomes. (Heads or tails). Probabilistic theory is an area of mathematics that studies random events rather than their attributes. It is applied in many disciplines, including statistics, economics, science, and engineering.

To find the value of c,

\(∫_{-3}^{0}(-c x) dx + ∫_{0}^{3}(c x) dx = 1\\\)

\([-(c/2)x^2]{-3}^{0} + [(c/2)x^2]{0}^{3} = 1\\(-c/2)(0-(-3)^2) + (c/2)(3^2-0) = 1\\(9/2)c = 1\\c = 2/9\\\)

Therefore, the value of c is 0.22 (rounded to two decimal places).

To know more about probability visit:

https://brainly.com/question/11234923

#SPJ1

Amelia made a mistake in Step 2. She should have squared the expression (r+2) before taking the square root of both sides.

A circle is a two-dimensional shape that is defined as the set of all points in a plane that are at a constant distance, called the radius, from a given point, called the center. It can be thought of as a closed curve or a line forming a closed loop. The distance around the circle is known as its circumference, and it is equal to 2 times pi times the radius, where pi is an irrational number approximately equal to 3.14159. The area enclosed by a circle is given by the formula A = pi times the radius squared. Circles have many important applications in mathematics, geometry, and physics, and they are used to represent many real-world objects, including wheels, gears, planets, and celestial objects.

Amelia made a mistake in Step 2. She should have squared the expression (r+2) before taking the square root of both sides.

The correct solution process is:

Step 1: A = π (r+2)²

Step 2: ±√(A/π) = r+2

Step 3: (± √(A/π)) - 2 = r

In Step 2, we first divide both sides by pi, and then take the square root of both sides. In Step 3, we subtract 2 from both sides to isolate r. This process correctly solves for the radius of the original circle based on the given area covered in oil.

To know more about expression visit:

https://brainly.com/question/21345014

#SPJ1

The percentage of free moisture on a fine aggregate is 0.5%.

Free moisture refers to the moisture which is present on the surface of the aggregate after moisture has been absorbed and can be removed by drying the sand. Free moisture or free water is determined as the difference between the mass of wet-saturated aggregate sample and the mass of saturated-surface-dry condition sample.

Based on the given information:

Stock (present) weight = Weight of wet sample = 464.3g

Oven-dry weight = Weight of dry sample = 450.6g

Total Moisture = (Weight of wet sample - Weight of dry sample)/Weight of dry sample * 100

(464.3 – 450.6)/450.6 * 100 = 0.030 *100 = 3%

Percent absorption (AC): 2.5%

Free moisture = Total moisture – Absorbed moisture

= 3 – 2.5 = 0.5%

Learn more about Free moisture:

https://brainly.com/question/14510804

#SPJ4

Answer:

-6 is the correct answer