Which math expression means "the quotient of 39 and 13"?
A. 39 - 13
B. 39 - 13
C. 39.13
D. 39 + 13

Will give brainy

The value of the expression (e+c-d)x dn  is -2

The given expression is:

(e+c-d)x dn

e=-6, n=2, c=6, and d=-1

Substitute e=-6, n=2, c=6, and d=-1 into (e + c - d)  x  dn

(e+c-d)x dn  =  [-6  + 6 -(-1)]  x  (-1)(2)

Simplify the expressions in the first and second parentheses

(e+c-d)x dn  =  (0  +  1)   x  (-2)

(e+c-d)x dn  =  1   x  (-2)

Multiply the two terms in the right hand side of the equality sign

(e+c-d)x dn  =   -2

The value of the expression (e+c-d)x dn is -2

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The answer is decreases.

In mathematics, an algebraic expression is an expression built up from constant algebraic numbers, variables, and the algebraic operations. For example, 3x² − 2xy + c is an algebraic expression.

The algebraic equation can be written in the many forms. It can be in one variable , two variable or even three or four variable. There are also many ways to put all into the equations.

So, as the question stated As x is increases, the value of the expression decreases.

Therefore, the answer is decreases.

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Answer:

1.96x + 0.69 ≤ 3

Up to 1.18 lb of potato salad.

Step-by-step explanation:

Let x = number of pounds of potato salad.

The total cost is 1.96x + 0.69.

The total cost has to be at most $3.00.

1.96x + 0.69 ≤ 3

1.96x ≤ 2.31

x ≤ 1.18

The solution to the system of equations is (1, 8).

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

y-x=7 y=3x+5

To find the solution to the system of equations y - x = 7 and y = 3x + 5, we can substitute the second equation into the first equation to eliminate y:

y - x = 7

y = 3x + 5

Substituting y = 3x + 5 into the first equation:

3x + 5 - x = 7

2x = 2

x = 1

Now that we have found x = 1, we can substitute it back into either equation to find y:

y = 3x + 5

y = 3 * 1 + 5

y = 8

So the solution to the system is (x, y) = (1, 8).

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The probability P(X=2, Y+Z ≤ 3) is 13. Random variables are variables in probability theory that represent the outcomes of a random experiment or event.

To find the probability P(X=2, Y+Z ≤ 3), we need to sum up the joint probabilities of all possible combinations of X=2, Y, and Z that satisfy the condition Y+Z ≤ 3.

Step 1: List all the possible combinations of X=2, Y, and Z that satisfy Y+Z ≤ 3:

X=2, Y=1, Z=1

X=2, Y=1, Z=2

X=2, Y=2, Z=1

Step 2: Calculate the joint probability for each combination:

For X=2, Y=1, Z=1:

f(2, 1, 1) = (2+1) * 1 = 3

For X=2, Y=1, Z=2:

f(2, 1, 2) = (2+1) * 2 = 6

For X=2, Y=2, Z=1:

f(2, 2, 1) = (2+2) * 1 = 4

Step 3: Sum up the joint probabilities:

P(X=2, Y+Z ≤ 3) = f(2, 1, 1) + f(2, 1, 2) + f(2, 2, 1) = 3 + 6 + 4 = 13

They assign numerical values to the possible outcomes of an experiment, allowing us to analyze and quantify the probabilities associated with different outcomes.

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Answer:

d

Step-by-step explanation:

The relationship between △ZVT and △XWU based on a congruence theorem is: D. △ZVT ≅ △XWU by ASA

Recall:

Fromm the information given to us about △ZVT and △XWU, we have the following:

Therefore, the relationship between △ZVT and △XWU based on a congruence theorem is: D. △ZVT ≅ △XWU by ASA

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Answer: 6

Step-by-step explanation:

If her lunch weighs a pound, and her gym clothes weigh two pounds, then she must have six books in her backpack.

1 + 2 + 6 = 9

Answer:

64

Step-by-step explanation:

this should be easy cause the 64 is bigger, so the parts are smaller. 192 divided by 64 is 3. 192 divided by 12 is 16. multiply, Yada yada… you get 64 is better!

The compound inequality for the given situation is $2.75x + $4.25y ≥ $65 and $2.75x + $4.25y ≤ $75, where x represents the number of daylight cameras and y represents the number of flash cameras.

To solve this compound inequality, we need to find the values of x and y that satisfy both conditions. The inequality $2.75x + $4.25y ≥ $65 represents the lower bound, ensuring that the total cost of the cameras is at least $65. The inequality $2.75x + $4.25y ≤ $75 represents the upper bound, making sure that the total cost does not exceed $75.

To list the solutions involving whole numbers of cameras, we need to consider integer values for x and y. We can start by finding the values of x and y that satisfy the lower bound inequality and then check if they also satisfy the upper bound inequality. By trying different combinations, we can determine the possible solutions that meet these criteria.

After solving the compound inequality, we find that the solutions involving whole numbers of cameras are as follows:

(x, y) = (10, 10), (11, 8), (12, 6), (13, 4), (14, 2), (15, 0), (16, 0), (17, 0), (18, 0), (19, 0), (20, 0).

These solutions represent the combinations of daylight and flash cameras that fulfill the requirements of buying exactly 20 cameras and spending between $65 and $75.

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Answer:

-5 and -2

Step-by-step explanation:

We have shown that a ⋅ (a × b) = 0, which means a is perpendicular to the cross product of a and b.

To prove that a is perpendicular to the cross product of a and b (a ⊥ (a × b)), we need to show that their dot product is zero: a ⋅ (a × b) = 0.

Let's expand the expression using the properties of the dot product and cross product:

a ⋅ (a × b) = a1(a2b3 - a3b2) + a2(a3b1 - a1b3) + a3(a1b2 - a2b1)

Now, let's simplify the expression:

a ⋅ (a × b) = a1a2b3 - a1a3b2 + a2a3b1 - a2a1b3 + a3a1b2 - a3a2b1

Next, let's regroup the terms:

a ⋅ (a × b) = a1a2b3 + a2a3b1 + a3a1b2 - a1a3b2 - a2a1b3 - a3a2b1

Notice that the terms on the right side are the same as the terms on the left side but in a different order. We can rearrange the terms:

a ⋅ (a × b) = (a1a2b3 - a2a1b3) + (a2a3b1 - a3a2b1) + (a3a1b2 - a1a3b2)

Now, we can see that each term in parentheses cancels out:

a ⋅ (a × b) = 0 + 0 + 0

Therefore, we have shown that a ⋅ (a × b) = 0, which means a is perpendicular to the cross product of a and b.

The proof for b ⊥ (a × b) = b ⋅ (a × b) = 0 follows the same logic and can be derived similarly using the properties of the dot product and cross product.

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Answer:

20-45 answer should be d good luck sorrybif im wrong

Answer:

d

Step-by-step explanation:

rearrange it like an equation.

take everything else out of the middle apart from x.

make sure that what you do to the middle you do to both sides

Answer:

A

Step-by-step explanation:

i just did the test

Answer:

30 minutes

Step-by-step explanation:

It took 20 minutes to progress from 5 to 9 feet meaning it goes 1 foot every 5 minutes. 15 - 9 is 6 and 6 * 5 = 30 meaning in 30 minutes it will reach 15 feet.

Answer:

Step-by-step explanation:

Ok:

First Problem with coin!

1. A coin has 2 sides and one of them is going to land up or down which means it has a chance of 1 out of 2.

1 out of 2=

1/2= 50%

Second Problem with spinner

2. There are 12 spaces on the spinner and three of those spaces are blue.

SO: 3 out of 12=

3/12=

1/4=

25%

Answers: 50% and 25%

IN FRACTION FORM: 1/2 and 1/4

Suppose dorothy drops a ball from a height of 10 feet. after the ball hits the floor, it rebounds 65% of its previous height.The formula that represents the height of the ball after its nth bounce is given by

\(y = (0.65)^n \times 10 feet.\)

When a ball is dropped from a height of 10 feet, it rebounds to 65% of its previous height each time it bounces.

To find the height of the ball after the nth bounce, we need to use a geometric sequence formula,

which is given by

\(y = ar^n-1,\)

where a is the initial term,

r is the common ratio, and

n is the number of terms.

Here, a = 10 feet,

r = 0.65, and

n is the nth term or

the number of times the ball bounces after it is dropped for the first time.

Therefore, the formula that represents the height of the ball after its nth bounce is given by

\(y = (0.65)^n \times 10 feet.\)

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Scenario 1A:

Coinsurance amount is $90

Medicare payment is $360

Provider write-off is $290

Scenario 1B:

Remaining amount for Insurance and patient to pay is $350

Coinsurance amount is $70

Total paid by patient is $170

Medicare payment is $280

Provider write-off is $370

Scenario 1A:

Submitted charge: $650

Medicare participating physician fee schedule (PFS): $450

Coinsurance amount (20% paid by patient): $

Medicare payment (80% of the PFS): $

Provider write-off: $

To calculate the missing amounts, we can use the provided information:

Coinsurance amount (20% paid by patient):

Coinsurance amount = 20% of the Medicare participating physician fee schedule (PFS)

Coinsurance amount = 0.2 * $450 = $90

Medicare payment (80% of the PFS):

Medicare payment = 80% of the Medicare participating physician fee schedule (PFS)

Medicare payment = 0.8 * $450 = $360

Provider write-off:

Provider write-off = Submitted charge - Medicare payment

Provider write-off = $650 - $360 = $290

Scenario 1B:

Submitted charge: $650

Medicare participating physician fee schedule (PFS): $450

Patient pays $100 remaining on their deductible

Remaining amount for Insurance and patient to pay: $

Coinsurance amount (20% of remaining amount): $

Total paid by patient (deductible & 20% of remaining): $

Medicare payment (80% of the remaining amount): $

Provider write-off: $

To calculate the missing amounts, we can use the provided information:

Remaining amount for Insurance and patient to pay:

Remaining amount for Insurance and patient to pay = PFS - remaining deductible

Remaining amount for Insurance and patient to pay = $450 - $100 = $350

Coinsurance amount (20% of remaining amount):

Coinsurance amount = 20% of the remaining amount

Coinsurance amount = 0.2 * $350 = $70

Total paid by patient (deductible & 20% of remaining):

Total paid by patient = remaining deductible + coinsurance amount

Total paid by patient = $100 + $70 = $170

Medicare payment (80% of the remaining amount):

Medicare payment = 80% of the remaining amount

Medicare payment = 0.8 * $350 = $280

Provider write-off:

Provider write-off = Submitted charge - Medicare payment

Provider write-off = $650 - $280 = $370

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Answer:

it says 6 points not 12 points

Step-by-step explanation:

Answer:

C=6π=18.84 ( if π=3.14)

Step-by-step explanation:

distance around the edge of the pond means the circumference of the circle=

C=2πr

C=2π(3)

C=6π=18.84 ( if π=3.14)

The approximate distance around the edge of the pond is 18.84 feet.

Given that, a circular pond has a radius of 3 feet.

The circumference of a circle is the perimeter of the circle. It is the total length of the boundary of the circle. The circumference of a circle is the product of the constant π and the diameter of the circle.

We know that, the circumference of a circle is 2πr.

Now, 2×3.14×3

= 18.84 feet

Hence, the approximate distance around the edge of the pond is 18.84 feet.

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The probability of getting at least 75% paper towel on a randomly selected roll is 0.85 or 85%

The probability distribution function of X if X ~ U(a,b) is

f(x) = 1/(b-a) if a ≤x≤b

    = 0, otherwise

The amount of paper towel on a roll is distributed between 0 m^2 and 500 m^2

∴ a = 0 and b= 500

f(x) = 1/500 when 0≤x≤500

     =  , otherwise

The probability that a randomly selected roll has 75 m^2 of paper towel on it at least

P( X≥ 75) = \(\int\limits^{500}_{75} {f(x)} \, dx\)

              = \(\int\limits^{500}_{75} {1/500} \, dx\)

              = (1/500) * \([x]_{75}^{500}\)

              = (500 - 75)/ 500

              = 0.85

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Answer:

yes

Step-by-step explanation:

Answer:

The shorter side is 6.

The perimeter is 26.4 inches.

The area is 43.2 inches\(^{2}\)

Step-by-step explanation:

The ratio 5;6 and the given longer side is 7.2 in.

Since it is the longer side, the '6' in the ratio is 7.2 in.

Let x be the shorter side

5:6 = x : 7,2

Divide 7.2 to 6.

7.2 ÷ 6 = 1.2

Then multiply 1.2 to 5.

1.2 * 5 = 6

So the shorter side is 6.

L = 7.2

W = 6

Now to find the perimeter, let's use the formula

P = 2L + 2W

Let's put the values in the formula

P = 2(7.2) + 2(6)

P = 14. 4 + 12

P = 26.4

The perimeter is 26.4 inches

To find the area, let's use the formula

A = LW

A = (7.2)(6)

A = 43. 2 inches\(^{2}\)

Answer:

shorter side= 6

p= 26.4  

a= 43.2

Step-by-step explanation:

Answer:

You can know if the shapes are similar if the are the same type of shape, have proportional side lengths, congruent corresponding angles (the angles are in the same place proportional to the shape and have the same amount of degrees), and equal scale factors.

In number 19, the polygons are similar because they have proportional side lengths and congruent corresponding angles.

Number 20's trapezoid A and B are not similar because the side lengths are not proportional to each other ( 2 is half of 4, 4 is not half of 6)

Hope this helps!

Hello there!

Equivalent fractions have the same value.

\(\frac{1}{7} , \frac{2}{14}, \frac{3}{21} ...\) are equivalent fractions.

Hope this helps you!

~Just a felicitous girlie

#HaveAMarvellousDay

\(SilentNature :)\)

Answer: 31,536,000

Step-by-step explanation:

Social cognitive theory focuses closely on A. addressing performance attainments and persistence in overcoming obstacles.

Social cognitive theory, developed by psychologist Albert Bandura, emphasizes the role of cognitive processes in learning and behavior. It specifically focuses on how individuals acquire knowledge, develop skills, and exhibit behavior through observational learning, self-efficacy beliefs, and self-regulation. One of the key aspects of social cognitive theory is addressing performance attainments and persistence in overcoming obstacles.

This means that the theory emphasizes the importance of individuals actively engaging in tasks, setting goals, and persisting in the face of challenges to achieve desired outcomes. By emphasizing performance attainments and overcoming obstacles, social cognitive theory highlights the role of self-efficacy, self-control, and motivation in shaping behavior and success in various domains of life, such as education, work, and personal goals.

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The best description of the probability of drawing a king from the deck is 1 out of 13, or 1/13.

The probability of drawing a king from a standard deck of 52 playing cards can be determined by dividing the number of favorable outcomes (number of kings) by the total number of possible outcomes (total number of cards in the deck).

In a standard deck, there are 4 kings (one king for each suit: hearts, diamonds, clubs, and spades). Therefore, the number of favorable outcomes is 4.

The total number of possible outcomes is 52 (the total number of cards in the deck).

So, the probability of drawing a king is:

Probability = Number of favorable outcomes / Total number of possible outcomes

Probability = 4 / 52

Simplifying the fraction gives us:

Probability = 1 / 13

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