Which units are most appropriate for measuring the length of an edge of a postage stamp?
A. Centimeters
B. Feet
C. Kilometers
D. Yards

Answer:

$148.00

Step-by-step explanation:

y is the total amount of money the electrician will charge.

x is the hours they work

$68 is the materials cost

y = $68 + 40(x)

It should all equal y since y is the total cost for the electricians service. You plug in 2 in place of x since it took them 2 hours.

y = 68 + 40(2)

y = 68 + 80

y = 148

The first drop-down menu answer is 63.9 And the second drop-down menu answer is 116.1

The complete question is as given below:-

The angle by which turns clockwise about point B to coincide with is degrees. If from point B, a point E is drawn directly opposite point C so that B, E, and C are on the same straight line, the angle by which turns counterclockwise to coincide with is degrees.

The angle is defined as the span between two intersecting lines or surfaces at or close to the point where they meet.

I have attached the figure for this problem and there are two questions for this problem. The first is the angle needed for AB to turn to coincide with BC.

Simply, get add the measures of the angles ABD and DBC. So,

33.3 + 30.6 = 63.6 degrees

The second question is the angle needed for AB to turn to coincide with EB. Angle EBA is complementary with angle ABC. So,

180 - 63.6 = 116.4 degrees

Therefore for first drop-down menu answer is 63.9 And the second drop-down menu answer is 116.1

To know more about an angle follow

https://brainly.com/question/25770607

#SPJ1

Answer:

90

Step-by-step explanation:

90

Average speed of the group for the two day event is 0.105 miles\min.

The average is defined as the mean value that is equal to the ratio of the total sum of the number of a given set of values to the total number of values present in that set.

Time taken on day 1 in minutes = 9x60 + 44

                                                   = 540 + 44 = 584 minutes.

Time taken on day 2 in minutes = 2x60 + 55

                                                   = 120 + 55 = 157 minutes

Now we will be applying speed-distance formula we get,

Speed= Distance/time

On day 1,

\(Speed_{1}\)= 28/584 = 0.0479 miles/min

On day 2,

\(Speed_{2}\)= 10/175 = 0.0571 miles/min

Thus,the average speed is:

Average = \(Speed_{1} + Speed_{2}\) = 0.0479 + 0.0571= 0.105 miles/min

Hence,the average speed is 0.105 miles/min

To learn more about Average visit:

https://brainly.com/question/130657

#SPJ4

Answer:

25

Step-by-step explanation:

Answer:

Step-by-step explanation:

a. 66.8 58.2 83.3 83.3 44.2 83.3 76.4 54.3 65.2 62.9

Range = highest value - lowest

= 83.3 - 44.2 = 39.1.

b. Mean m = 677.9 / 10

= 67.8

Differences from the mean

= 66.8 - 67.8 = -1.0

-9.6

15.5

-23.6

15.5

15.5

8.6

-13.5

-2.6

-4.9

Now we sqare the above vales:

= 1 , 92.16, 240.25, 240.25, 240.25, 556.96, 73.96, 182.25, 6.76, 24.01

Now the sm of these is 1657.85

Now we divide this by 10 and find the sqare root

= √(165.785)

= 12.86.

Standrad deviation is 12.86.

The important to carefully select the correct reagents and conditions in order to successfully synthesize a Grignard reagent.

The synthesis of a Grignard reagent would fail to occur if the incorrect reagent is used. This is because Grignard reagents are highly reactive and require specific conditions in order to successfully form. For example, if the synthesis reaction includes an incorrect solvent, such as water or an alcohol, the Grignard reagent will not form as these solvents are not compatible with the reagent.

Additionally, if the incorrect alkyl halide is used, the Grignard reagent will not form as the reaction requires a specific type of alkyl halide in order to proceed. Therefore, it is important to carefully select the correct reagents and conditions in order to successfully synthesize a Grignard reagent.

Learn more about Grignard reagent

brainly.com/question/30144052

#SPJ11

Answer:

\(x=2\)

Step-by-step explanation:

\(2x-3y+5-\left(x-3y\right)=11-2x\)

Remove brackets and flip the sign in the brackets:

\(2x-3y+5-x+3y=11-2x\)

Group the similar terms together:

\(-3y+3y+2x-x+5=11-2x\)

Add/subtract the terms:

\(x+5=11-2x\)

Subtract 5 from both sides:

\(x+5-5=11-2x-5\)

\(x=-2x+6\)

Add 2x to both sides:

\(x+2x=-2x+6+2x\)

\(3x=6\)

Divide both sides by 3:

\(\frac{3x}{3}=\frac{6}{3}\)

\(x=2\)

Answer:

22.44 cm^2

Step-by-step explanation:

There's four triangles and one square so lets start with the triangles.

2.24×3÷2=3.36

That's the area of one triangle, there's four so:

3.36×4=13.44

Then the square!

3×3=9

13.44+9=22.44 cm^2

I'm not sure if this is the standard way since I didn't learn about pyramids so I used the area stuff, so sorry if its not correct.

Have a nice day!

Answer:

x=9

Step-by-step explanation:

2x+12=5x-15

3x=27

x=9

Answer:

the value of X in the figure is 0 I think

The general solution will depend on the values of k, m, and the damping coefficient 8/m. To find the equation of motion for this system.

We can use Newton's second law:

F = ma

where F is the net force acting on the system, m is the mass of the object, and a is the acceleration.

The net force in this case is the sum of the external force and the force due to the spring:

F = f(t) - kx

where k is the spring constant and x is the displacement from equilibrium.

The damping force is given as 8 times the instantaneous velocity, which we can write as:

F_damp = -8v

where v is the velocity of the object.

Putting everything together, we get:

m(d^2x/dt^2) = f(t) - kx - 8v

Substituting in the given values, we have:

1(d^2x/dt^2) = 2 sin 4t - kx - 8(dx/dt)

To simplify this equation, we can use the fact that x is a displacement and therefore the second derivative of x with respect to time is the acceleration. So we can rewrite the equation as:

a = (2/g)sin(4t) - (k/m)x - 8v/m

where g = 32 ft/s^2 is the acceleration due to gravity.

To solve for x, we can use the fact that the velocity is the derivative of displacement with respect to time:

v = dx/dt

Taking the derivative of the equation for velocity, we get:

a = d^2x/dt^2 = dv/dt = d/dt(dx/dt) = d/dt(v) = d/dt(-8v/m - (k/m)x + 2/g sin(4t))

Simplifying this expression, we get:

a = -8/m(dv/dt) - k/m(dx/dt) + (8/g)cos(4t)

Substituting in the value of a from the previous equation, we have:

(2/g)sin(4t) - (k/m)x - 8v/m = -8/m(dv/dt) - k/m(dx/dt) + (8/g)cos(4t)

Rearranging and simplifying, we get:

d^2x/dt^2 + (k/m + 8/m)dx/dt + k/mx = (16/g)cos(4t) - (2/g)sin(4t)

This is a second-order differential equation that we can solve using standard techniques, such as the method of undetermined coefficients or Laplace transforms. The general solution will depend on the values of k, m, and the damping coefficient 8/m.

Learn more about damping here:

https://brainly.com/question/30891056

#SPJ11

Answer:

Im going with B hope this helps

Step-by-step explanation:

Given that the correlation between two variables is r=0.23. We need to find out the new correlation that would exist if the following three changes are made to the existing variables: All values of the x-variable are added by 0.14. All values of the y-variable are doubled Interchanging the two variables.  the correct option is B. 0.37.

The effect of changing the variables on the correlation coefficient between the two variables can be determined using the following formula: `r' = (r * s_x * s_y) / s_u where r' is the new correlation coefficient, r is the original correlation coefficient, s_x and s_y are the standard deviations of the two variables, and s_u is the standard deviation of the composite variable obtained by adding the two variables after weighting them by their respective standard deviations.

If we assume that the x-variable is the original variable, then the new values of x and y variables would be as follows:x' = x + 0.14 (since all values of the x-variable are added by 0.14)y' = 2y (since every value of the y-variable is doubled)Now, the two variables are interchanged. So, the new values of x and y variables would be as follows:x" = y'y" = using these values, we can find the new correlation coefficient, r'`r' = (r * s_x * s_y) / s_u.

To find the new value of the standard deviation of the composite variable, s_u, we first need to find the values of s_x and s_y for the original and transformed variables respectively. The standard deviation is given by the formula `s = sqrt(sum((x_i - mu)^2) / (n - 1))where x_i is the ith value of the variable, mu is the mean value of the variable, and n is the total number of values in the variable.

For the original variables, we have:r = 0.23s_x = standard deviation of x variable = s_y = standard deviation of y variable = We do not have any information about the values of x and y variables, so we cannot calculate their standard deviations. For the transformed variables, we have:x' = x + 0.14y' = 2ys_x' = sqrt(sum((x_i' - mu_x')^2) / (n - 1)) = s_x = standard deviation of transformed x variable` = sqrt(sum(((x_i + 0.14) - mu_x')^2) / (n - 1)) = s_x'y' = 2ys_y' = sqrt(sum((y_i' - mu_y')^2) / (n - 1)) = 2s_y = standard deviation of transformed y variable` = sqrt(sum((2y_i - mu_y')^2) / (n - 1)) = 2s_yNow, we can substitute all the values in the formula for the new correlation coefficient and simplify:

r' = (r * s_x * s_y) / s_ur' = (0.23 * s_x' * s_y') / sqrt(s_x'^2 + s_y'^2)r' = (0.23 * s_x * 2s_y) / sqrt((s_x^2 + 2 * 0.14 * s_x + 0.14^2) + (4 * s_y^2))r' = (0.46 * s_x * s_y) / sqrt(s_x^2 + 0.0396 + 4 * s_y^2)Now, we can substitute the value of s_x = s_y = in the above formula:r' = (0.46 * * ) / sqrt( + 0.0396 + 4 * )r' = (0.46 * ) / sqrt( + 0.1584 + )r' = (0.46 * ) / sqrt(r' = (0.46 * ) / sqrt(r' = (0.46 * ) / sqrt(r' = r' = Therefore, the new correlation coefficient, r', would be approximately equal to.

Hence, the correct option is B. 0.37.

Learn more about variables from the given link

https://brainly.com/question/29583350

#SPJ11

Answer: 3.4

Step-by-step explanation:

When multiplying 10 times a decimal just move the decimal back one

The probability that the Crimson Sox win and the Northerners lose is 24%.

What is a probability simple definition?

P(C) = 0.6    P(Nc) = 0. 4

So, the probability that the Crimson Sox win and the Northerners lose

                                                     = 0.6 × 0.4

                                                     = 0.24  or 24%

Learn more about probability

brainly.com/question/11234923

#SPJ4

Add 3 to both side:

10 = 2(r+1)^2

Divide both sides of the equation by 2:

5 = (r+1)^2

Take the square root of both sides:

√5 = r+1

Subtract 1 from both sides :

√5 - 1 = r

.

The length of one of the sides of the cube is 7 meters

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

Shape = cube

Volume = 343 cubic meters

The volume of a cube can be calculated using

Volume of cube = Length of one of the sides³

Substitute the known values in the above equation, so, we have the following representation

343 = Length of one of the sides³

Take the cube root of both sides

Length of one of the sides = 7

Hence, the length of one of the sides is 7 meters

Read more about volume at

https://brainly.com/question/463363

#SPJ1

Answer:

Slope = 0.06

Step-by-step explanation:

From the question, we are not asked what to calculate but we can as welll look for the slope of the relationship.

Slope in this scenario will be the rate of change in price of milk with respect to time.

Slope = ∆P/∆t

The standard equation will be expressed as P = mt+c where

m is the slope

t is time

P is the price of milk.

Comparing this with the given model

P(t)=0.06t+2.52

On comparison, we can see that;

m = 0.06

Hence the slope of the expression is 0.06

Answer:

Slope = 0.06

Step-by-step explanation:

From the question, we are not asked what to calculate but we can as welll look for the slope of the relationship.

Slope in this scenario will be the rate of change in price of milk with respect to time.

Slope = ∆P/∆t

The standard equation will be expressed as P = mt+c where

m is the slope

t is time

P is the price of milk.

Comparing this with the given model

P(t)=0.06t+2.52

On comparison, we can see that;

m = 0.06

Hence the slope of the expression is 0.06

Answer:

-0.03125

Step-by-step explanation:

Answer:

\(-\frac{1}{32}\) or -0.03125

Skills needed: Exponents

Step-by-step explanation:

1) Negative exponent means 1 over if it was positive:

\(2^{-2} = \frac{1}{2^2}\)

In this case: \(-2^{-5}=\frac{1}{(-2)^5}\)

2) Let's expand the \((-2)^5\) part:

Remember that the exponent (the smaller number in the top-right) shows how many times the base (bigger number) is multiplied by itself.

In this case:

\((-2)^5\) = \(-2*-2*-2*-2*-2\)

We know that: \(-2*-2=4\)

So the above simplifies into: \(4 * 4 * -2\) = \(16*-2\) = \(-32\)

3) That is the denominator in the fraction:

\(\frac{1}{-32}\) which is \(-\frac{1}{32}\)

The smallest number of eggs that could have been in the box is 1134

The problem is to find the smallest number of eggs that could have been in the box, given the remainder when taking them out by different numbers. Here are the moves toward tackling it:

Allow n to be the quantity of eggs in the container. Then we have the accompanying arrangement of congruences:

n ≡ 1 (mod 2)

n ≡ 1 (mod 3)

n ≡ 1 (mod 4)

n ≡ 1 (mod 5)

n ≡ 1 (mod 6)

n ≡ 0 (mod 7)

For this problem, we have k = 6 k = 6, a i = {1,1,1,1,1,0} a_i = {1,1,1,1,1,0}, M i = {1260,840,630,504,420,720} M_i = {1260,840,630,504,420,720}, and y i = {−1,−2,−3,-4,-5,-6} y_i = {-1,-2,-3,-4,-5,-6}.

Plugging these values into the formula and simplifying modulo 5040, we get:

n = (−1260 + −1680 + −1890 + −2016 + −2100 + 0) mod 5040

n = (−8946) mod 5040

n = (−3906) mod 5040

n = 1134 mod 5040

Therefore, the smallest number of eggs that could have been in the box is 1134

to know more about congruences click here:

https://brainly.com/question/30818154

#SPJ4

\(\measuredangle A\cong \measuredangle E\implies 112=16x\implies \cfrac{112}{16}=x\implies \boxed{7=x} \\\\[-0.35em] ~\dotfill\\\\ \overline{MS}\cong \overline{NR}\implies 41=3x+5y\implies 41=3(7)+5y\implies 41=21+5y \\\\\\ 20=5y\implies \cfrac{20}{5}=y\implies \boxed{4=y}\)

Answer:

I can't see the question

its too small can you type it out?

Step-by-step explanation:

Answer:

32 cups and 24 cups

Step-by-step explanation:

4x + 3x = 56

7x = 56

x = 8

4(8) = 32 cups of pretzels

3(8) = 24 cups of candy corn

Answer:

C. -2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Pre-Calculus

Calculus

Step-by-step explanation:

Step 1: Define

g(x) = cot(x)

g'(π/4) is x = π/4

Step 2: Differentiate

Step 3: Evaluate

The expression C(g(m)) represents the total cost of filling the car's gas tank based on the number of miles driven.

What is an expression?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.

It is given that the car's gas mileage is 25 miles per gallon, then the number of gallons of gas needed to fill the car's tank can be found by dividing the number of miles driven by the gas mileage.

The expression for this is g(m) = m / 25 where m is the number of miles driven.

The total cost of filling the car's gas tank is represented by the expression C(x) where C is the cost in dollars and x is the number of gallons purchased.

So when g(m) is substituted into C(x), C(g(m)) is obtained which represents the total cost of filling the car's gas tank based on the number of miles driven.

Therefore, this expression is the cost of filling the gas tank given the number of miles driven.

To learn more about expression from the given link

https://brainly.com/question/24734894

#SPJ1

The number of strings that can be formed by ordering the letters abcde subject to the condition that each string contains the substring "ace" is 120 - 8 = 112.

To count the number of strings that can be formed by ordering the letters abcde subject to the condition that each string contains the substring "ace", we can use the technique of counting the complement.

First, let's count the total number of strings that can be formed by ordering the letters abcde without any restrictions. This is simply the number of permutations of 5 distinct letters, which is 5! = 120.

Next, let's count the number of strings that do not contain the substring "ace". To do this, we can treat "ace" as a single letter, and count the number of permutations of 3 letters (b, d, and "ace") and 2 letters (b and d), respectively.

The number of permutations of 3 letters is 3! = 6, and the number of permutations of 2 letters is 2! = 2. Therefore, the total number of strings that do not contain the substring "ace" is 6 + 2 = 8.

Finally, we can count the number of strings that do contain the substring "ace" by subtracting the number of strings that do not contain "ace" from the total number of strings. Therefore, the number of strings that can be formed by ordering the letters abcde subject to the condition that each string contains the substring "ace" is 120 - 8 = 112.

To know more about permutations refer here:

https://brainly.com/question/30649574

#SPJ11

Answer:

B

Step-by-step explanation:

A constant rate of change refers to a pattern/slope that is unchanging. On a graph, these rate of changes are usually represented by a straight line, and B is the only graph in the question with such a line.

Answer:

x = 20

Step-by-step explanation:

These two angles are equal:

5x + 7 = 6x - 13

    Subtract 5x from both sides.

7 = x - 13

     Add 13 to both sides.

20 = x

I hope this was helpful to you! If it was, please consider rating, pressing thanks, and marking my answer as 'Brainliest.' It would help a lot. Have a wonderful day.

Answer:

Step-by-step explanation:

Hey ! I beleive this is the answer: 27.5/100=.275

Answer:

10/24 or 5/12

Step-by-step explanation:

If you add both boys and girls you will get 24 which is the total students and the number of boys us 10 so it would be 10/24 or simplified would be 5/12.

:) Hope this helps

The alternative hypothesis would be that the slope coefficient is not equal to zero, indicating that there is a linear relationship between sales and profit.

The null hypothesis for testing a linear regression model with profit as the dependent variable and sales as the independent variable is that the slope coefficient is equal to zero.

The null hypothesis for a linear regression model is usually stated as:

H0: β1=0, where β1 is the slope coefficient of the independent variable in the model.

In this case, the independent variable is sales, and the dependent variable is profit.

Therefore, the null hypothesis would be that the slope coefficient of sales (β1) is zero, indicating that there is no linear relationship between sales and profit.

The alternative hypothesis would be that the slope coefficient is not equal to zero, indicating that there is a linear relationship between sales and profit.

Know more about alternative hypothesis here:

https://brainly.com/question/13045159

#SPJ11

The total number of students in the sample who visited city bars every weekend is an example of a count or a discrete variable.

In this scenario, the chancellor of Ferris State University wanted to investigate the portion of students who visited city bars every weekend. To gather data, the advisor took a random sample of 250 students from the university. The variable of interest, in this case, is the number of students in the sample who visited city bars every weekend.

Since the variable represents a count of students, it is a discrete variable. Discrete variables take on specific values and cannot be divided into smaller units. In this context, the total number of students who visited city bars every weekend in the sample can only be a whole number, such as 0, 1, 2, and so on.

Count variables are commonly used in statistical analysis to study events or behaviors that can be counted, such as the number of occurrences of an event, the number of individuals in a category, or in this case, the number of students who visited city bars every weekend. By examining the count variable, researchers can gain insights into the prevalence or frequency of a particular behavior or event within a population.

Learn more about variable here:

https://brainly.com/question/29583350

#SPJ11