A school uses merit based pay for teachers. Each teacher would be given a score between 1 (Far Below Expectations) and 5 (Exceeds expectations) in the following categories. The weight of each category is included.

Content Knowledge (20%)
Lesson plans (15%)
Instruction delivery (20%)
Classroom management (15%)
Student Performance (20%)
Supplementary Responsibilities (10%)
A teacher received the following scores. What was his weighted average?

Content Knowledge = 4

Lesson plans = 3

Instruction delivery = 3

Classroom management = 5

Student Performance = 4

Supplementary Responsibilities = 2

The teacher's weighted mean is ______________.

To factor -1/4 out of -1/2-5/4y, you can use the distributive property and simplify the expression to 1/8 + 5/16y.

To factor -1/4 out of -1/2-5/4y, you can use the distributive property. First, rewrite the expression as (-1/2) + (-5/4)y. Then, factor out -1/4: (-1/4)(-1/2) + (-1/4)(-5/4)y. This simplifies to 1/8 + 5/16y.

https://brainly.com/question/33624529

#SPJ2

I believe your answer is B)160. But i'm not 100%. <3

The decimal 0.8333 is equivalent to the fraction 2/3.

To convert the decimal 0.8333 to a fraction, follow these steps:

Step 1: Let x be the decimal value:

x = 0.8333

Step 2: Multiply both sides of the equation by 10000 to remove the decimal:

10000x = 8333.3

Step 3: Subtract x from both sides of the equation:

10000x - x = 8333.3 - 0.8333

9999x = 8332.4667

Step 4: Divide both sides of the equation by 9999 to isolate x:

x = 8332.4667 / 9999

Divide both the numerator and the denominator by their greatest common divisor, which is 3333:

x = (8332.4667 ÷ 3333) / (9999 ÷ 3333)

x = (2.49995) / 3

Now, the fraction as a whole number over the denominator:

x = 2 / 3

Therefore, the fraction is 2/3.

Learn more about Decimal here:

https://brainly.com/question/29765582

#SPJ6

Answer: Option b

Step-by-step explanation:

Rachel needs two hours for a loaf of bread and one hour for one pie.

Joey needs four hours for one loaf of bread and four hours to a pie.

We want to know the opportunity cost of Rachel to make one loaf of bread.

The opportunity cost is the relation between what she wins and what she could'be wined if she chose the other option.

We know that at the same time that she bakes 1 loaf of bread she could make 2 pies, so the opportunity cost of 1 loaf of bread is option b (what she could have wined if she chose to do the pies instead in that time).

Answer:

  14/15 more pints of strawberries than grapes

Step-by-step explanation:

You want to find the difference between 2 1/3 and 1 2/5. There are several ways to do this. One is to use a common denominator for the fractions. Here, a convenient denominator is 3·5 = 15. This lets us write the problem as ...

  2 5/15 - 1 6/15

  = (2 -1) + (5/15 -6/15)

  = 1 - 1/15 . . . . of course there are 15/15 in 1, so subtracting 1 of them gives...

  = 14/15

Kelly uses 14/15 more pints of strawberries than of grapes in her juice.

_____

Comment on solution details

We have rewritten the fraction 1/3 as 5/15. We can do this by multiplying 1/3 by 1, where 1 is in the form 5/5:

  (1/3) = (1/3)·1 = (1/3)·(5/5) = (1·5)/(3·5) = 5/15

Similarly, we have rewritten the fraction 2/5 by multiplying it by 3/3:

  (2/5) = (2/5)·(3/3) = 6/15

__

Both numbers can be converted to improper fractions:

  2 1/3 = (2·3+1)/3 = 7/3

  1 2/5 = (1·5+2)/5 = 7/5

Then the difference can be found using the formula ...

  a/b - c/d = (ad -bc)/(bd)

  7/3 -7/5 = (7·5 -7·3)/(3·5) = (35 -21)/15 = 14/15

The expression that represents "the difference between -17 and -8" is the second option:

-17 - (-8)

This expression translates to "negative seventeen minus negative eight," which yields the difference between the two numbers.

This expression represents "negative eight minus negative seventeen." When you subtract a negative number, it's equivalent to adding its positive counterpart. So, this expression can be simplified to:

-8 + 17 = 9

However, this result does not represent the difference between -17 and -8; it gives the difference between 17 and 8.

This expression represents "negative seventeen minus eight." This directly calculates the difference between -17 and -8. It simplifies to:

-17 - 8 = -25

This indeed represents the difference between -17 and -8.

This expression represents "negative seventeen minus negative eight." Similar to the first expression, subtracting a negative number is the same as adding its positive counterpart. So, this simplifies to:

-17 + 8 = -9

This result does not represent the difference between -17 and -8; it gives the difference between -17 and 8.

This expression represents "negative eight plus negative seventeen." It simplifies to -25, which again represents the difference between -17 and -8.

Among these expressions, only the second expression, -17 - 8, correctly represents the difference between -17 and -8.

Answer:

paralell lines, i think.

Step-by-step explanation:

In this exercise we have to perform the parameterization of the given function and we will have:

[tex]\int\limits_C {f} \, dr = f(1, 2)-f(-1, 2)= 2/3[/tex]

In there is some scalar function [tex]f(x, y)[/tex] such that:

[tex]\nabla f(x,y) = f(x, y) = x^2i+y^2j[/tex]

Then we want to find [tex]f[/tex] such that:

[tex]f'(x)= x^2= f(x,y) = \frac{x^3}{3} + g(y)\\f'(y)= y^2= f(x,y)= \frac{y^3}{3} + C\\f(x, y)= \frac{x^3}{3} +\frac{y^3}{3} + C[/tex]

So the vector filed [tex]f(x, y)[/tex] is conservative, which means the fundamental theorem applies; the line integral of [tex]f[/tex] along any path [tex]C[/tex] parameterized by some vector-valued function [tex]r(t)[/tex] over [tex]a\leq t\leq b[/tex] is given by:

[tex]\int\limits_C {f} \, dr\\\int\limits^t=a_t=b {f(r(t))} \, dt= f(r(b))-f(r(a))[/tex]

In the case:

[tex]\int\limits_C {f} \, dr = f(1, 2)-f(-1, 2)= 2/3[/tex]

Learn more: brainly.com/question/14770282

This problem requires calculation in multivariable calculus. Function f = ∇f when f(x, y) = x³/3 + y³/3. To calculate the line integral of ∇f · dr over the curve c, take the difference between the end and start points of the scalar function.

The subject for this calculation is multivariable calculus, dealing with operations such as the gradient (∇) and line integrals.

According to the given function f(x, y) in part (a), it can be seen that f = ∇f for f(x, y) = x³/3 + y³/3. The vector field of this function is conservative since it corresponds to the gradient of a scalar function.

For part (b), you will need to calculate the line integral of ∇f · dr over the curve c, which is y = 2x² from (-1, 2) to (1, 2). The result of this will be the difference between the end and start points of the scalar function: f(1, 2) - f(-1, 2).

https://brainly.com/question/31461715

#SPJ3

The difference between -4/5 and -3/5 is found by changing the subtraction to addition and combining the numerators, resulting in -1/5.

To find the difference between -4/5 and -3/5, you change the subtraction operation to addition by changing the sign of the second fraction. This is similar to the process described by the example, where subtracting a negative number is the same as adding its positive counterpart (e.g., 2 - (-6) = 2 + 6). In the case of fractions, the process is the same.

So, the problem -4/5 - (-3/5) becomes -4/5 + 3/5. Since both fractions have the same denominator, you can combine the numerators directly. The result is the difference of the numerators over the common denominator:

The difference between -4/5 and -3/5 is -1/5.

Answer:

Parameter

Step-by-step explanation:

Answer:

T = 13.9 + 12.85 + 14.82 + 12.74

Step-by-step explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

Based on the information in the question, the total time for the relay would be calculated by simply adding each of the four-relay members time during the 100 meter run. Therefore the expression would be

T = 13.9 + 12.85 + 14.82 + 12.74

T = 54.31 seconds.

If we decided to solve for the Total time (T) it would add up to 54.31 seconds for the relay time. But since the question did not ask for the total but just the expression. Then the answer is the expression above.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

The solution to the system of equations is [tex]\(x = \frac{20}{3}\)[/tex] and [tex]\(y = -\frac{15}{4}\).[/tex]

To solve the system of equations (3x - 4y = 35) and (3x + 4y = 5), we'll use the method of elimination.

Add the two equations together to eliminate the variable (y).

(3x - 4y) + (3x + 4y) = 35 + 5

3x - 4y + 3x + 4y = 40

6x = 40

[tex]\[ x = \frac{40}{6} \][/tex]

[tex]\[ x = \frac{20}{3} \][/tex]

Substitute [tex]\(x = \frac{20}{3}\)[/tex] into one of the original equations. Let's use the first equation:

[tex]\[ 3\left(\frac{20}{3}\right) - 4y = 35 \][/tex]

20 - 4y = 35

-4y = 35 - 20

-4y = 15

[tex]\[ y = \frac{15}{-4} \][/tex]

[tex]\[ y = -\frac{15}{4} \][/tex]

So, the solution to the system of equations is [tex]\(x = \frac{20}{3}\)[/tex] and [tex]\(y = -\frac{15}{4}\).[/tex]

a, b, d, e true: empty set fits in its own container.

c, f false: bigger container doesn't hold smaller container.

Here are the truths and falsehoods of the statements:

a) ∅ ∈ {∅} - True. The empty set is an element of the set containing only the empty set.

b) ∅ ∈ {∅, {∅}} - True. The empty set is also an element of the set containing both the empty set and the set containing the empty set.

c) {∅} ∈ {∅} - False. The set containing the empty set is not an element of the set containing only the empty set.

d) {∅} ∈ {{∅}} - True. The set containing the empty set is an element of the set containing only the set containing the empty set.

e) {∅} ⊂ {∅, {∅}} - True. The set containing the empty set is a subset of the set containing both the empty set and the set containing the empty set.

f) {{∅}} ⊂ {∅, {∅}} - False. The set containing the set containing the empty set is not a subset of the set containing only the empty set and the set containing the empty set.




The probable question can be: Determine whether these statements are true or false.

a) ∅ ∈ {∅}

b) ∅ ∈ {∅, {∅}}

c) {∅} ∈ {∅}

d) {∅} ∈ {{∅}}

e) {∅} ⊂ {∅, {∅}}

f) {{∅}} ⊂ {∅, {∅}}

Answer and Explanation:

Given : A spring stretches in relation to the weight hanging from it according  to the equation [tex]y = 0.75x + 0.25[/tex] where x is the weight in pounds and y is the length of the spring in inches.        

To find :

1) How to graph the equation including axis labels  ?

2) How to interpret the slope and the y-intercept of the line?

Solution :

Linear equation  [tex]y = 0.75x + 0.25[/tex]

1) To draw the graph we find the x and y-intercept of the line,

x- intercept i.e. y=0

[tex]0.75x + 0.25=0[/tex]

[tex]0.75x=-0.25[/tex]

[tex]x=-\frac{0.25}{0.75}[/tex]

[tex]x=-0.33[/tex]

y- intercept i.e. x=0

[tex]y=0.75(0) + 0.25[/tex]

[tex]y=0.25[/tex]

Plotting these two points (-0.33,0) and (0,0.25).

Refer the attached figure below.

2) The general form of line is [tex]y=mx+c[/tex]

where, m is the slope and b is the y-intercept of the line.

Comparing with given line  [tex]y = 0.75x + 0.25[/tex]

The slope of the line is m=0.75

and the y-intercept of the line is b=0.25.

The only value of x where f(x) = 0 can be determined by looking at the function's behavior near the x-axis and using the Intermediate Value Theorem. In this case, the potential x value is -9.

The one and only value of x where f(x) = 0 is the point of the function that intersects the x-axis. Since the function is continuous, it must cross the x-axis at this point due to the Intermediate Value Theorem.

To determine the possible value of x, we look at the given function values at x = -10 and x = -8 and identify where the function changes sign from negative to positive. The value of x where this sign change happens is the possible x value.

From the provided choices, the only value that would make this sign change possible is -9. Therefore, -9 could be the value of x where f(x) = 0.

The car can drive 216 miles on 12 gallons.

The rate of change of position is called as displacement.

Now it is given that,

Distance traveled by car = 630 miles

Gas required to travel 630 miles = 35 gallons

Therefore, Distance travel n 1 gallon = Distance traveled by car / Gas required to travel 630 miles

⇒ Distance travel n 1 gallon = 630 / 35 miles

⇒ Distance travel n 1 gallon = 18 miles

Therefore, Distance travel n 12 gallon = 12 * Distance travel n 1 gallon

⇒ Distance travel n 12 gallon = 12 * 18 miles

⇒ Distance travel n 12 gallon = 216 miles.

Thus, the car can drive 216 miles on 12 gallons.

To learn more about gallons:

https://brainly.com/question/9917229

#SPJ2