Which set of expressions below does NOT represent equivalent expressions?

A. 8(3x + 7) and 8(3x) + 8(7)
B. 3(8x + 7) and 11x + 10
C. 7(3x + 8) and 7 ∙ 3x + 7∙ 8
D. 3(7x + 8) and 21x + 24

Answers

Answer 1

Answer:

B

Step-by-step explanation:

The other are equal


Related Questions

A triangle has a base of two to the third power units and a height of chicken fourth power units what is the area of the triangle

Answers

i think you had an auto correct problem

Help pls!! What is the perimeter of triangle FBD?

Answers

Answer:

46

Step-by-step explanation:

AC = 2FD

CE = 2BF

AE = 2BD

2FD + 2BF + 2BD = 2(FD + BF + BD) = AC + CE + AE

2[tex]P_{FBD}[/tex] = [tex]P_{ACE}[/tex] ⇒ [tex]P_{FBD}[/tex] = [tex]\frac{1}{2}[/tex] [tex]P_{ACE}[/tex]

[tex]P_{FBD}[/tex] = 92 ÷ 2 = 46 units

(SOMEONE HELP ASAPP )In triangle QRS below, 2Q = 53.13º and ZR = 36.87°

Which of the following are true?

Answers

Can you please show the triangle?

You have been working with irregular figures. How is estimating area on a grid different from estimating perimeter on a grid? how do you explain?

Answers

Answer:

When estimating area, count the squares that cover the shape. When estimating perimeter, count the unit lengths that are around the shape.

Step-by-step explanation:

your welcome

Answer:

When estimating area, count the squares that cover the shape. When estimating perimeter, count the unit lengths that are around the shape.

Step-by-step explanation:

Credit to the guy above.

The radius of a right circular cylinder is increasing at the rate of 7 in./s, while the height is decreasing at the rate of 3 in./s. At what rate is the volume of the cylinder changing when the radius is 17 in. And the height is 5 in.?

Answers

Answer:

1014.73 in³/s

Step-by-step explanation:

We know the volume of a cylinder, V = πr²h where r = radius of cylinder and h = height of cylinder.

Now, to find the rate of change of volume, we differentiate it with respect to time. So

dV/dt = d(πr²h)/dt

= πhdr²/dr × dr/dt + πr²dh/dh × dh/dt

= 2πrh × dr/dt + πr² × dh/dt

when r = 17 in, dr/dt = rate of change of radius = + 7 in/s, h = 5 in and dh/dt = rate of change of height = - 3in/s (negative since it is decreasing).

So, dV/dt = 2πrh × dr/dt + πr² × dh/dt

= 2π × 17 in × 5 in × (+ 7 in/s) + π(17 in)² × (- 3 in/s)

= 1190π - 867π

= 323π in³/s

= 1014.73 in³/s

Help plzzzzzzzzzzzzzz ​

Answers

Sooo the answer is......

Write the equation of the line that passes through the points (-9,-6) and (−8,1). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.

plz help ill give brainliest if correct

Answers

Answer: The slope is 7

m =7

y + 6 = 7 ⋅ ( x + 9 )

Step-by-step explanation:

728 - 3 = queen plus 3 so make sure 4 x 3 is 9

Which proportion would you use to solve this problem?
Nine Is 4% of what number?
40
100
х
O
X
9 100
o
х
100
4
100

Answers

Answer:

its c

Step-by-step explanation:

Answer:

its c

Step-by-step explanation:

hope this helps!

It costs each barber at Denny Moe's Superstar Barbershop $125.50 to use one chair for the entire day. The average barber at Denny Moe's Superstar Barbershop earns an income of $345.25. What is the profit for the average barber at Denny Moe's Superstar Barbershop?
$219.75
$220.25
$460.75
$470.75

Answers

Answer:

A-219.75

Step-by-step explanation:

Answer:

$219.75

Step-by-step explanation:

The profit is the difference between the income and costs, which in this example would be $345.25 - $125.50 = $219.75

Help me please. Will give brainliest

Answers

Answer:

The answer is B. they're using the slope equation to figure out the slope. none of the other equations are set up correctly, so B is the correct answer.

Step-by-step explanation:

i hope this helps :))

Y is over x so answer is b

please help! algebra 2

Answers

im sure Its the last one

Thomas is drawing a map of his city's walking trails. On the map, 5 cm is equal to 2 miles. If a trail is 22.5 cm on the map, how long is the trail in real-life?

Answers

Answer:

9 miles

Step-by-step explanation:

Given that :

Given that:

On map:

5cm = 2 miles

If a map trail = 22.5cm

Length of trail in real life :

(22.5 cm / 5cm) * 2miles

4.5 * 2 miles = 9 miles

The trail is 9 miles in real life

Your friend claims that a triangle with side lengths of a, b, and c will have half the area of a triangle with side lengths of 2a, 2b, and 2c. Is your friend correct?

Answers

Answer:

My friend is wrong since, the area of the triangle with sides a, b, c is one-quarter the area of triangle with sides 2a, 2b, 2c

Step-by-step explanation:

Using herons formula, the area of the first triangle with sides a, b, c is A = √[s(s -a)(s - b)(s -c)] where s = (a + b + c)/2.

So, A = √[(a + b + c)/2((a + b + c)/2 - a)((a + b + c)/2 - b)((a + b + c)/2 - c)]

= √[(a + b + c)/2((b + c - a)/2)((a - b + c)/2)((a + b - c)/2)]

= 1/4√[(a + b + c)(b + c - a)(a - b + c)(a + b - c)].

For the triangle with sides 2a, 2b, 2c, the area is A' = √[s'(s' - 2a)(s' - 2b)(s' -c)] where s' = (2a + 2b + 2c)/2 = a + b + c.

So, A' = √[(a + b + c)((a + b + c) - 2a)((a + b + c) - 2b)((a + b + c) - 2c)]

= √[(a + b + c)((b + c - a)(a - b + c)(a + b - c)]

= √[(a + b + c)(b + c - a)(a - b + c)(a + b - c)].

Since A = 1/4√[(a + b + c)(b + c - a)(a - b + c)(a + b - c)]. and A' = √[(a + b + c)(b + c - a)(a - b + c)(a + b - c)] ⇒ A = A'/4

So, the area of the triangle with sides a, b, c is one-quarter the area of triangle with sides 2a, 2b, 2c. So, my friend is wrong.

Part A: What is the ratio of the number of students receiving a C and the number of students receiving an A? * 1:4 6:1 4:1 3:1 Part B: Complete the statement: For every student receiving a D, ______ students received a B. * Part C: What is the ratio of the number of students receiving a C and the number of students receiving an D? 1:4 6:1 4:1 3:1

Answers

Answer:

a. 4 : 1

b. 2 students

c. 3 : 1

Step-by-step explanation:

a. There were 12 students who got a C and 3 students who got As. The ratio is therefore:

12 : 3

Take it to the lowest form by dividing both sides by 3:

= 4 : 1

b. There were 4 students with a D grade and 8 with a B. The ratio is:

= 4 : 8

Taken to the lowest form that would be:

= 1 : 2

This means that for every student receiving a D, 2 students received an A.

c. 12 students received a C and 4 students received a D. That ratio is therefore:

= 12 : 4

Take to the lowest form by dividing both sides by 4:

= 3 : 1

Brianna invested $25,000 in an account paying an interest rate of 3.6% compounded daily. Assuming no deposits or withdrawals are made, how much money, to the nearest cent, would be in the account after 18 years?

Answers

Answer:   A≈47791.31

Step-by-step explanation:

A

=

P

(

1

+

r

n

)

n

t

A=P(1+

n

r

)

nt

Compound interest formula

P

=

25000

r

=

0.036

t

=

18

n

=

365

P=25000r=0.036t=18n=365

Given values

A

=

25000

(

1

+

0.036

365

)

365

(

18

)

A=25000(1+

365

0.036

)

365(18)

Plug in values

A

=

25000

(

1.0000986301

)

6570

A=25000(1.0000986301)

6570

Simplify

A

=

47791.3122461

A=47791.3122461

Use calculator

A

47791.31

A≈47791.31

The amount after 18 years will be $47,791

What is compound interest?

Compound interest simply means that the interest associated with a bank account, loan, or investment increases exponentially over time.

Given that, Brianna invested $25,000 in an account paying an interest rate of 3.6% compounded daily.

A = P(1+r/365)^n*365

A = 25000(1+0.00009863)^6570

A = 25000(1.00009863)^6570

A = 47,791

Hence, The amount after 18 years will be $47,791

For more references on compound interest, click;

https://brainly.com/question/14295570

#SPJ2

This shape is a kite.
Calculate the value of a.
I will give the brainliest to the correct answer!

Answers

Answer:

a = 72

Step-by-step explanation:

the sum of a four-sided polygon's angles equal 360°

so you can add all four angles together and set them equal to 360

a + a + a + 2a = 360

5a + 360

a = 360/5

a = 72

There are four angles in a kite.

The value of a to make the shape a kite is [tex]72^o[/tex].

The sum of angles in a kite is [tex]360^o[/tex]

So, we have:

[tex]a + a + a + 2a = 360^o[/tex]

Add like terms

[tex]5a = 360^o[/tex]

Divide both sides by 5

[tex]a = 72^o[/tex]

Hence, the value of a is [tex]72^o[/tex]

Read more about kites at:

https://brainly.com/question/4350272

What is 11.242/22 eqaul?


I need ASAP

Answers

Answer:

11.242÷22=0.511

Plzzzzz give me Brainliest!!!!!  

The sides of a triangle in cm, are , x , 2x – 5 and 2x – 3 . The perimeter of the triangle is 32 cm . i) Write down an equation for x

Answers

9514 1404 393

Answer:

  32 = (x) +(2x -5) +(2x -3)

Step-by-step explanation:

The perimeter is the sum of the side lengths:

  P = a + b + c

  32 = (x) +(2x -5) +(2x -3)

__

This can be simplified to ...

  32 = 5x -8

and solved to find x:

  x = (32 +8)/5 = 8

A store manager and stroke some new trainees that a book is priced at $21 winds up costing a customer $20.63 what does the tax is included which is the sale tax percentage

Answers

Answer:

1.76%

Step-by-step explanation:

Given

Original price of the book = $21

Price after sales percentage = $20.63

Discount = 21-20.63

Discount = $0.37

sale tax percentage = discount/original price × 100%

sale tax percentage = 0.37/21 × 100

sale tax percentage = 37/21

sale tax percentage = 1.76%

Hence the sale tax percentage is 1.76%

Gio wants to serve salad at the party. He will need one head of lettuce for every 6 guests who attend. Write an algebraic expression Gio could use to determine how much lettuce he needs. Gio finds out 18 people are coming to the party. Evaluate the expression for 18 guests

Answers

Answer:

a. y = x/6 b. 3 heads of lettuce

Step-by-step explanation:

a. Write an algebraic expression Gio could use to determine how much lettuce he needs

Since Gio needs one head of lettuce for every 6 guests who attend, then, the number of lettuce y needed for x guests is one head of lettuce/6 guests × x guests is y = 1/6 × x

= x/6

b. Gio finds out 18 people are coming to the party. Evaluate the expression for 18 guests

Since 18 guest come to the party, x = 6. So, y = x/6

= 18/6

= 3 heads of lettuce.

the total cost of a bike cycle and radio is rupees 7000. if the cost of the bike cycle is rupees thousand a more than two times of the cost of the radio find the cost of each of these two items ​

Answers

Answer :

Radio = 2000

Bike = 5000

Hope this helps u

PLEASE HELP LIKE QUICK PLEASE PLEASE ( you'll get 50 points!!! )
A company has two manufacturing plants with daily production levels of 5x+14 items and 3x−5 ​items, respectively. The first plant produces how many more items daily than the second​ plant?

Answers

70 - 15 = 55 ( 5x + 14 - 3x-5 )

So, the first plant produces 55 more items daily than the second plant.

I hope this helped!

Answer:

[A]first manufacturing plant produce =5x+14 items

se

[B]second manufacturing plant produce=3x-5

now

difference=A-B=5x+14-{3x-5}=5x+14-3x+5=2x+19

The first plant produces 2x+19 more items daily than the second plant.

2x^5-4x^3+6x^8
is this a trinomial with a coefficient of 2 or 6?

Answers

Answer:

6

Step-by-step explanation:

Coefficient: A number before the variable such as 4 in 4x.

When there is more than one term with coefficient the leading coefficient is always the one that is in the term with the highest exponent:

2x^5 and 6x^8

^8 is bigger than ^5, so that's the leading coefficient.

Which expression is equal to (x – 3)(2x^2 – x + 3)?
O 2x3 + 5x2 + 6x - 9
o 2x3 – 7x2 – 9
o 2x3 – 7x2 + 6x – 9
o 2x3 + 5x2 - 9

Answers

Answer:

C. 2x^3 - 7x^2 + 6x - 9

Step-by-step explanation:

Hope this helps!

Answer:

c

Step-by-step explanation:

sum of two rational numbers is - 8 is 3 by 4 find others ​

Answers

Answer:

Step-by-step explanation:

ans is -35/4.

The answer would be -34/4

Help with this plz bc I don’t want to get I trouble by my teacher

Answers

Answer:

c

Step-by-step explanation:

Answer:

The answer is C. She saves $150 every month

Step-by-step explanation:

BRAINLIEST! URGENT! Please help, if you explain how you got the answer, I WILL GIVE BRAINLIEST.​

Answers

a triangle is 180 degrees, so if you do 180-34 is should equal 146, so b + c = 146°

Your family is looking for a new car! They want to purchase the car that has the best miles/gallon in the city. Below are the advertisements for 4 pre-owned 2013-2014 cars. Please help me someone

Answers

Answer:

Although no list of cars was given, you find the top five that I can recommend

Step-by-step explanation:

Kindly note that no sufficient data/information was provided, however, as a way forward to answer this question you can look up the list of  five cars with great miles per gallons

1. Honda Civic

   Engine Type: Gas, Hybrid

   MPG: Up to 35 MPG mixed city/highway for gasoline, 40-50% higher in    

   hybrid engine

   Body Styles: Coupe, Sedan, Hatchback

2. Hyundai Elantra

  Engine Type: Gas, Hybrid

  MPG: Up to 36 MPG mixed city/highway

  Body Styles: Sedan

3. Nissan Altima

   Engine Type: Gas

   MPG: Up to 34 MPG mixed city/highway

   Body Styles: Sedan

4. Toyota Corolla

    Engine Type: Gas

     MPG: Up to 34 MPG mixed city/highway

    Body Styles: Sedan

5. Honda Accord

    Engine Type: Gas, Hybrid

    MPG: Up to 31 MPG mixed city/highway for gasoline, up to 48 MPG for    

     hybrid

    Body Styles: Sedan, Coupe

The expression -320+15y represents a submarine that began at a depth of 15 feet below sea level and ascended at a rate of feet per minute. What was the depth of the submarine after 15 ​minutes?

Answers

Step-by-step explanation:

Given an expression that represents a submarine that began at a depth of 15 feet below sea level and ascended at a rate of feet per minute is as follows :

-320+15y

We need to find the depth of submarine after 15 ​minutes.

Put y = 15 in the above expression.

-320+15y = -320+15(15)

= -320 + 225

= -95

Hence, the submarine is below sea level at 95 feet.

How do you do this?

Answers

Answer:

132 degrees

Step-by-step explanation:

its asking for angle r, right? the degrees they give you is across from the needed angle. in class alone that would give you the answer, but since a line is 180 degrees, 180 minus 132 is 48 degrees, 48 plus a unknown angle(r) is 180. hence 132

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