Evaluate the expression 7x2y, when x = 4 and y = 2. 112 224 542 718

Answers

Answer 1
7x2y

Keep in mind that all the terms are just being multiplied together, like this:

7 * x * 2 * y

When we plug in 4 for x and 2 for y, we end up with this:

7 * 4 * 2 * 2 =
28 * 4 = 
112

Your answer should be 112.
Answer 2

224 will be your answer

7 x^2  y

7 (4 ^2) 2=?

4x4=16

16x 7= 112

112x2 =224


Related Questions

Finding the median in a data set?

Answers

To find the median in a set of data, arrange all the numbers from least to greatest.

Find the number in the middle.

If there are two numbers in the middle, find the mean of those two numbers.

Which of the following modifications to the list of assets and liabilities below would result in a negative net worth? House valued at $90,000. Mortgage owed $78,000. Car valued at $11,000. Car loan of $5,000. Student loan of $13,700. Stocks valued at $2,500. Savings of $3,000. a. Net worth is already negative. b. House value decreasing to $83,000. c. Borrowing $10,000 more in student loans. d. Selling off all owned stocks.

Answers

Answer:

The correct answer is C. Borrowing $10,000 more in students loans.



Option C - Borrowing $10,000 more in student loans is the correct Alternative.

We have list of assets and liabilities.

We have to determine which of given modification would  result in negative net worth.

What is Asset and Liabilities?

Assets are the items your company owns that can provide future economic benefit. Liabilities are what you owe other parties.

According to the question -

Assets = House + Car + Stocks + Savings.

Total Assets = $90,000 + $11,000 + $2,500 +  $3,000 = $106500

Liabilities = Mortgage + Car loan + Student loan.

Total Liabilities = $78,000 +  $5,000 + $13,700 = $96700

Now if you borrow $10000 more in student loan then -

Total Liabilities = $78,000 +  $5,000 + $13,700 + $10000 = $96700 + $10000 = 1,06,700 > Assets.

Hence, Option C is the correct Alternative.

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PLEASE HELP ASAP!!!!!

Answers

accute hope this helps
the answer is scalene. hope this helps : )

A store charges $280 for coat. This price is 40 percent more than the amount it cost the store to buy. At the end-of-season sale, store employees may purchase any remaining coats at 30 percent off the store’s cost. How much would it cost an employee to purchase the coat at the sale?

Answers

it would cost an employee $140 to purchase the coat at the sale.

Let's break down the problem step by step:

1. The store charges $280 for the coat, which is 40% more than the amount it cost the store to buy. This means that the store's cost (let's call it ( C )) can be found by first determining what 100% of the cost is (since $280 is 140% of the cost, as 100% + 40% = 140%). We can set up the equation:

[tex]\[ 140\% \text{ of } C = $280 \]\[ 1.4C = $280 \]\[ C = \frac{$280}{1.4} \]\[ C = $200 \][/tex]

So, the store's cost for the coat is $200.

2. At the end-of-season sale, store employees can purchase any remaining coats at 30% off the store’s cost. This means they pay 70% of the store's cost. We can calculate this as:

[tex]\[ 70\% \text{ of } $200 = 0.7 \times $200 = $140 \][/tex]

Therefore, it would cost an employee $140 to purchase the coat at the sale.

What is QR to the nearest tenth

Answers

The answer is 36.0 because

Alice paid $17.00 for 2 beads for her bracelet. Then she paid $42.50 for 5 more of the same kind of beads for her bracelet. Which is the price of one bead?

Answers

Your answer should be 8.5! if thats not one of your answer choices then round it then your answer would be 9! I hope this helped.

Answer:

Step-by-step explanation:

What is the length of the diagonal of rectangle abcd ?

Answers

answer b 26 because a squared plus b squared = c squared so 10x10 + 24x24 = 676 and so you take the square root of 676 which is 26.

A map has a scale of 1/2 inch to 4 miles. The shortest distance between two cities on the map measures 8 inches. If d represents the shortest distance between the two cities, what is d?

A. 16 mi.

B. 32 mi.

C. 64 mi.

D. 72 mi.

Answers

The answer would be C because for every 1 inch, would be 8 miles, so we then multiply the inches by 8 to get to 8 inches, so we then multiply the miles by 8 and we get 64 miles.

D = 64 mi.

Answer:

C

TOOK SAME TEST ON EDGE 2021

An event is three times as likely as its complement. What is the probability of the event?

Answers

E = some event
C = complement of event E
Since the events are complementary, this means P(E)+P(C) = 1

We know that P(E) = 3*P(C) since "an event is three times as likely as its complement"

So we can replace P(E) with 3*P(C) and then isolate P(C)
P(E) + P(C) = 1
3*P(C) + P(C) = 1
4*P(C) = 1
P(C) = 1/4

The probability of the complementary event is 1/4
So the probability of the original event is 3/4 (three times 1/4)

Answer: 3/4

note: in decimal form, 3/4 = 0.75

Organizers of an outdoor concert will use 320 feet of fencing to fence off a rectangular VIP section. What is the maximum area that they can fence off? A) 3,200 square feet B) 6,400 square feet C) 12,800 square feet D) 24,000 square feet

Answers

2(l+w)=320

l+w= 160

l=160-w

lw=A

160w-w²= A

w²-160w+A=0


w max= -b/(2a)= 160/2= 80 ft


Max A = 160(80)-(80)²= 6400 ft²

So  B is correct

Answer:

B

Step-by-step explanation:

Find the nonpermissable replacement for x in this expression x^2/-4x-8

Answers

The correct answer for the exercise shown above is: x=-2

 The explanation is shown below:

 1. You have the following expresssion given in the problem above:

 x²/-4x-8

 2. By definition, the nonpermissible replacement for x in this expression, is the value of x that makes the denominator equal to zero.

 3. Keeping this on mind, you have:

 -4x-8=0
 -4x=8
 x=8/-4
 x=-2

  x²/-4x-8= (-2)²/(-4)(-2)-8= 4/8-8= 4/0

 Therefore, as you can see, the answer is x=-2.

3+45456688888876777888888

Answers

The answer is 45456688888876777888891
45456688888876777888888 + 3 = 45456688888876777888891

Hope this helps! :)

9. Find the constant of variation, k, for y= –8 when x = 12.

show your work

Answers

The answer to this question depends on whether x and y are directly or inversely related.

Since you have not provided the relation between the two variables, I will provide the answer in both cases.

1- In case x was directly proportional to y:
This means that as x increases, y increases and vice-versa.
Translating this into an equation, we would get the following:
y = kx
where k is the constant of proportionality.
Now, we are given that:
y = -8 at x = 12
Substitute with these givens in the above equation to get k as follows:
-8 = k * 12
k = -8/12
k = -2/3

2- In case x was inversely proportional to y:
This means that as x increases, y decreases and vice-versa.
Translating this into an equation, we would get the following:
y = k / x
where k is the constant of proportionality.
Now, we are given that:
y = -8 at x = 12
Substitute with these givens in the above equation to get k as follows:
-8 = k / 12
k = -8*12
k = -96

Hope this helps :)

how do you solve for x and y

Answers

Given that the length of the bigger triangle is 2 times the length of the smaller triangle :
⇒ Ratio of the smaller triangle : larger triangle = 1 : 2

x = 34 x 2 = 68 units

Angles in a triangle sum up to 180:
y = 180 - 76 - 41 = 63°

Answer : x = 68 units, y = 63°




Kristin spent $131 on shirts. Fancy shirts cost $28 and plain shirts cost $15. If she bought a total of 7 then how many of each kind did she buy

Answers

Hi there!!

First, Let plain shirts be x
Let fancy shirts be y 
x + y = 7
15x + 28y = 131 
Multiply first equation by 28 to eliminate y: 
28x + 28y = 196
15x + 28y = 131 
Subtracting the two equations:
13x = 65
x = 5 
Substituting x to get y:
x + y = 7
5 + y = 7
y = 2 
Answer: 5 plain shirts and 2 fancy shirts

Hope this helps u!!
Have an amazing rest of ur day:)))

The required Kristin bought 2 fancy shirts and 5 plain shirts.

What are simultaneous linear equations?

Simultaneous linear equations are two- or three-variable linear equations that can be solved together to arrive at a common solution.

Here,
Let's assume that Kristin bought x fancy shirts and y plain shirts. We know that the total number of shirts is 7, so:

x + y = 7

We also know that the total cost of the shirts is $131, that fancy shirts cost $28 and plain shirts cost $15. So we can write another equation:

28x + 15y = 131

Now we have two equations with two variables. We can use substitution or elimination to solve for x and y. Let's use substitution:

x + y = 7 -> x = 7 - y (subtract y from both sides)

28x + 15y = 131 -> 28(7-y) + 15y = 131 (substitute x with 7-y)

Expanding the brackets, we get:

196 - 28y + 15y = 131

-13y = -65

y = 5

So Kristin bought 5 plain shirts. We can substitute this value into either equation to find x:

x + y = 7 -> x + 5 = 7 -> x = 2

So Kristin bought 2 fancy shirts and 5 plain shirts.

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How is the degree of the product of two polynomials p(x) and q(x) related to the degrees of p(x) and q(x)?

Answers

Take the degree of the highest power of x in each p(x) and q(x).  Add these two degrees together.  That will be the degree of the product of p(x) and q(x).
Final answer:

The degree of the product of two polynomials p(x) and q(x) is equal to the sum of the degrees of p(x) and q(x).

Explanation:

The degree of the product of two polynomials p(x) and q(x) is related to the degrees of p(x) and q(x) by the following rule:

The degree of the product is equal to the sum of the degrees of the two polynomials.

For example, if p(x) is a polynomial of degree m and q(x) is a polynomial of degree n, then the product p(x)q(x) will be a polynomial of degree m+n.

A miner descended 1200 feet into a mine. While in the mine, he then rose 450 feet and then descended 150 feet. What was the miner's net gain or loss in altitude? 1500 ft 600 ft –1500 ft –900 ft

Answers

the net loss is 1150
So, let's solve it!
If he rose 450:
1200 + 450 = 1650
If he descended 150:
1650-150 = 1500
1500 feet, his net gain is -300 feet, his loss is 300 feet

help please 38 points

Answers

I’m confused on the same question :(

Jackson goes to the gym 0, 2, or 3 days per week, depending on work demands. The expected value of the number of days per week that Jackson goes to the gym is 2.05. The probability that he goes 0 days is 0.1, the probability that he goes 2 days is , and the probability that he goes 3 days is .

Answers

For a probability distribution the expected value is the summation of product of probabilities with their respective data values. Let x be the probability that Jackson goes gym for 2 days and y be the probability that he goes gym for 3 days.

For the given case we have following values and their probabilities:

0 : 0.1

2 : x

3 : y

So the expected value will be = 0(0.1) + 2(x) + 3(y)

Expected value is given to be 2.05. So we can write the equation as:

2x + 3y = 2.05 (Equation 1)

Also for a probability distribution, the sum of probabilities must always equal to 1. So we can set up the second equation as:

0.1 + x + y = 1

x + y = 0.9 (Equation 2)

From Equation 2 we can write the value of x to be x = 0.9 - y. Using this value in equation 1, we get:

2(0.9 - y) + 3y = 2.05

1.8 - 2y + 3y = 2.05

1.8 + y = 2.05

y = 0.25

Using the value of y in equation 2 we get value of x to be 0.65

Therefore we can conclude that:

The probability that Jackson goes to gym for 2 days is 0.65 and the probability that he goes to gym for 3 days is 0.25

He goes to the gym 0, 2, or 3 days per week.  

Let's assume P(0 days)=p, P(2 days)=q, and P(3 days) = r.

So, p+q+r = 1

E(X)= E(x=0)*P(0 days) + E(x=2)*P(2 days) + E(x=3)*P(3 days)

E(X) = 0*p + 2*q + 3*r = 2q + 3r

Given is the value of P(0 days) = p = 0.1

Given is the expected value of number of days is E(X) = 2.05

Therefore, we have 0.1 + q + r = 1 and 2q + 3r = 2.05

Or, q + r = 0.9 and 2q + 3r = 2.05

Solving the two equations :-

(2q+3r)-2*(q+r) = 2.05-2(0.9)

r = 0.25

q = 0.65

Therefore, P(2 days) = 0.65 and P(3 days) = 0.25

Three times the sum of a number and six

Answers

Answer:

3(x+6)

Step-by-step explanation:

A consult needs to make at least $600 this week she earns $120 for each new piece and $60 for each review which of the following inequalities represents the possible combinations of reviews and new written pieces that she must complete

Answers

The consult must make at least 600 dollars. That means the combination of reviews and new written pieces must be at least $600, or greater than or equal to (≥) $600.

You are also told that each new piece = $120 and each review = $60. Let's use variables n = new piece and r = review. (You might be given different variables for your answer choices). That means the total money made from a combination of new pieces and reviews is:
120n (money made from each new piece times n number of new pieces) + 60r (money made from each review times r number of reviews).

Put that all together to get your inequality:
120n + 60r ≥ 600

-----

Answer: 120n + 60r ≥ 600
Final answer:

The possible combinations of reviews and new written pieces can be represented by the inequality 60r + 120n ≥ 600.

Explanation:

To represent the possible combinations of reviews and new written pieces, we can use the variables r for reviews and n for new pieces.

The total earnings can be calculated by multiplying the number of reviews by $60 and the number of new pieces by $120, and this must be greater than or equal to $600.

Therefore, the inequality that represents the possible combinations is 60r + 120n ≥ 600.

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Tshonda is buying a laptop computer. she will pay 8% sales tax on the price before any rebates. where will she get a better buy?

XYZ-Tronic
price - $629
mail-in rebate $150
TEC-U-COMP
price - $649
discount 25% off

Answers

The above me is clearly wrong. However, the reason I'm not going to post an actual answer is because this post is over 2 years old and there is a good chance the they aren't even in school anymore.

Sarah bought a 16 ounce jar of strawberry jam for $3.20. What is the unit price

Answers

Divide 16 by 3.20$. You would get 50 cents per ounce of strawberry jam
Well, the unit price is how much does 1 ounce cost. Since 16 ounces of strawberry jam costs $3.20, divide 3.20 by 16 to find the unit price.
3.20/16=0.2, so the unit price is $0.20.
I hope this helps!
-Raiden

y + 2.3 = 0.45x

–2y = 4.2x – 7.8

(2.4, –1.2)
(–1, 2.5)
no solution
infinitely many solutions

Answers

multiply the first equation by 2:-
2y  + 4.6 = 0.90x
2y - 0.90x = -4.6
second equation is
-2y - 4.2x = -7.8
Adding:-
-5.1x =  -12.4
x = 2.4

-2y =  -7.8 + 4.2(2.4)  =  2.3
x = -1.2

Answer  x = 2.4 and y = -1.2

Its choice A

a model car has been made using a scale factor if 1.5 inches:3 feet. If the actual car is 13.75 feet long, what is the length of the model?

Answers

Final answer:

To find the length of the model car, set up a proportion and cross multiply.

Explanation:

To find the length of the model car, we need to use the scale factor given. The scale factor is 1.5 inches:3 feet. This means that for every 1.5 inches in the model, there are 3 feet in the actual car.

Given that the actual car is 13.75 feet long, we can set up a proportion:

1.5 inches / 3 feet = X inches / 13.75 feet

Cross multiplying, we get:

1.5 inches * 13.75 feet = 3 feet * X inches

Simplifying, we find that the length of the model car is approximately 6.88 inches.

A rectangle has a perimeter of 34 cm in an area of 52 cm squared it's length is 5 more than twice its width write and solve the system of equations to find the dimensions of the rectangle

Answers

L+W=17 W=4 is the answer.

Let [tex] l [/tex] be the length and [tex] w [/tex] be the width of the rectangle.

Given perimeter of the rectangle

[tex] 2(l+w)=34 \; l+w=17[/tex]

Area of the rectangle is

[tex] lw=52 [/tex]

Also length is 5 more than twice its width,

[tex] l=2w+5 [/tex]

From the above equations

[tex] (l-w)^2=(l+w)^2-4lw=17^2-4*52=81\\
l-w=9,\; since \; l>w [/tex]

Now [tex] 2l=9+17=26\;,l=13,w=4 [/tex]

The dimensions of the rectangle are length [tex] l=13 [/tex], and width [tex] w=4 [/tex].


factor 1/5 out of 1/5x+29/5

Answers

Okie, we do the factor
we have 1/5 x+ 29/5= 1/5 x+ 1/5 x29= 1/5(x+29)

And we have done
Have a good day
Final answer:

To factor 1/5 out of the algebraic expression 1/5x + 29/5, we remove the common term 1/5. This leaves us with 1/5 * (x + 29), not altering the value of the original expression.

Explanation:

To factor 1/5 out of 1/5x+29/5, we first need to understand what factoring entails. Factoring is basically expressing an algebraic equation as a product of its factors.

Step 1: Look at the expression '1/5x + 29/5'. We can see that '1/5' is common in both terms.

Step 2: Factor out the common term, which in this case is '1/5'.

So the expression '1/5x + 29/5' factored out would be '1/5 * (x + 29)'. Throughout this process, we have not changed the value of the original expression, only rewritten it in a different form.

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DF bisects EDG find the value of x

Answers

DF bisects <EDG 
so EF = FG
5x + 24 = 9x
4x = 24
  x = 6

answer
D. last one
6

In a school, the probability is 44% that a student chosen at random will be a boy. What is the probability that the student will be a girl?

Answers

Final answer:

The probability that a randomly chosen student is a girl is 56%, calculated by subtracting the probability of a boy (44%) from 100%.

Explanation:

The question asks us to find the probability that a student selected at random is a girl, given that the probability of selecting a boy is 44%. Since the question does not provide information about any other genders, we can imply that all remaining students are girls.

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1, or 0% and 100%. So, if the probability of selecting a boy is 44% or 0.44, then the probability of selecting a girl would be the remaining percentage or fraction to reach 100% or 1.

This is calculated by subtracting the probability of selecting a boy from 1 or 100%, so 1 - 0.44 = 0.56 or 100% - 44% = 56%.

Therefore, the probability that a student selected at random is a girl is 56% or 0.56.

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what is the equivalent equation 2x-10/25-x^2

Answers

An expression that is equivalent to this expression is -x² + 2x - 2/5. Hope this helps!
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Which of the following best describes the expression 3x + 2y + 8z? The product of three sums; there are three termsThe sum of three products; there are three terms The product of three sums; there are six termsThe sum of three products: there are six terms HELP ME PLEASE THIS IS IMPORTANT The length of a train is about 1,700 meters. If there are approximately 3.28 feet in one meter, what is the length of the train in feet?0.002 feet557,600 feet5,576 feet518 feet Strategies that help _____ work by altering the physical state of your body. an object in an electrical circuit resists the flow of energy called aA switchB resistorC ohmD current A compound contains 64.27% carbon, 7.19% hydrogen, and 28.54% oxygen. the molar mass is 168.19 g/mol. what is the molecular formula IF YOU SEE WARNING HAZARD LIGHTS ON A MOVING PASSENGER VEHICLE, IT MEANS Pessimists often do well because... none of these answers are correct they tend to invest their money rather than save it they overprepare, make back-up plans, take care of details, and check their work over and over again they don't even try things they know that can't accomplish successfully NEED HELP ASAP!How can fertilizers and pesticides lead to soil mismanagement?A. They can poison soil organisms B. They can take minerals from the soil C. They can feed plant rootsD. The can form holes in the soil. How was Rome able to take control of Italy? the function of y=log(x) is translated 1 unit right and 2 units down. which is the graph of the translated function Find the Perimeter of the triangle. Round 2 decimal places. Please help me with a simple math problem.What is M DFE?A. 19B. 42C. 78D. 119 According to the text the ultimate goal of workplace drug prevention programs is to the straight tubules in the testis lead into the 2.A triangular pyramid begins with these coordinates:P(1, 2, 0)Y(2, 3, 0)R(3, 4, 0)A(2, 1, 5)The pyramid is then reflected over the yz-plane. The reflected image is then translated using the following rule: (x, y, z) (x + 2, y + 4, z 3). Determine the coordinates of that final image, following these steps:1.Write the general rule you use for the reflection. (4 points) 2.What would be the new points of the shape after this reflection? (4 points) 3.Now, use the points from number 2 and apply the translation rule. Show the results of your calculations for that translation. (4 points) What is the core premise of laissez-faire economics? a parade traveled 9 miles in 3 minutes and how far did the parade travel per minute The downtown areas of Tacoma and Spokane faced challenges when people moved toward the suburbs and chose to shop at malls instead of the downtown city area. A.TrueB.False the solutions to a linear equation are the points in the plane that make the inequality true . true or false ?