Add the polynomials:
2a+3b+5a-7b Explain your response

Answers

Answer 1

7a - 4b

Step-by-step explanation:

Add the numbers ending with 'a' together, and then add the numbers ending with 'b' together.

First of all, I will put the letters beside each other.

2a + 5a + 3b - 7b

2a + 5a = 7a

3b - 7b = - 4b

Therefore, the answer is 7a - 4b.


Related Questions

help a sister out please!​

Answers

Answer:

it would be 8 because it is a parallelogram and they are parallel to each other

Step-by-step explanation:

CD=AB

select all the statements that are true about square EFGH.​

Answers

Answer:

sorry but theres no answer to that if we can't see the square :|

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given that the random variable X = number of days a student sleeps in during the week, what is the correct notation for the probability that a student will sleep in at least 3 days?​

Answers

Answer:

X > 3/7

Step-by-step explanation:

X > 3/7

We know that the student sleeps in at least 3 days, but we don't know what the exact number is, we use an inequality where X is greater than or equal to 3 out of the 7 days.

X>3/7


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help me pls
which equation represents a line which is parallel to the line.
y=3x-8​

Answers

y-3x=7 because in order for lines to be parallel, they must have the same gradient, which is 3 in this question

HELPPPP ASAPPP MARKING BRAINLIEST

Answers

Answer:

1) a

2) c

3) a

Step-by-step explanation:

1) Subsitute

2.14x - 42.9 = ?

2.14(22.4) - 42.9 = ?

47.936 - 42.9 = ?

= 5.036

2) Factor out

6y^2 + 27y

both have 3 and y in common so ...

3y(2y + 9)  

3) Distribute

12m(m - 3n)

12m * m = 12m^2

12m * -3n = -36mn     the only reason -3 is NOT a positive is b/c it has subtraction sign b4 the number

put it in order:

12m^2 - 36mn

OMG pls help. 8qt = _ pt
options: 16,8,14,10. pls help

Answers

Answer:

16 pts

Step-by-step explanation:

1qt = 2pts

Write a compound interest function to model each situation. Then find the balance after the given number of years.

$50,000 invested at a rate of 3% compounded monthly; 6 years

$43,000 invested at a rate of 5% compounded annually; 3 years

$65,000 invested at a rate of 6% compounded quarterly; 12 years​

Answers

Answer:

See explanation

Step-by-step explanation:

The standard compound interest formula is [tex]A = P(1+\frac{r}{n})^{nt}[/tex] where:

P is the principal amount

r is the interest rate (typically as a percentage)

t is the time

n is the times compounded per unit of time

So,

1)  [tex]A = 50000(1+\frac{0.03}{12})^{(12)(6)} =59847.42[/tex]

2) [tex]A = 43000(1+\frac{0.05}{1})^{(1)(3)} =49777.88[/tex]

3) [tex]A = 65000(1+\frac{0.06}{4})^{(4)(12)} =132826.08[/tex]

You should check my answers though, I may have mixed up some terms.

HELP Me PLEASE I will give u brainlist

Answers

Answer:

each pendant cost 2 dollars and 20 cents

Answer: 2.2

all u need is a calculator it is quite easy(no offense)

quick mafs

What is the simplest form of the numerical expression 5+16/4-2^3 ?

Answers

Answer:

5+4-8

Step-by-step explanation:

Bruno is a manager at a factory that makes in-line skates. The equation 200x - y + 500 = 0 relates y, the number of pairs of skates the factory has in the warehouse and x, the number of hours after bruno starts his shift. Show that the equation is a linear equation by writing it in a slope-intercept form. Show your work

Answers

Answer:

Slope- intercept form       y = 200 x + 500

Step-by-step explanation:

Explanation:-

Given that the equation

        200x - y + 500 = 0

where   y, the number of pairs of skates the factory has in the warehouse, and x be the number of hours

The slope-intercept form

                 y = m x +C

Given equation  200x - y + 500 = 0

                           200 x + 500 =y

                        y = 200 x + 500

Slope of the equation m = 200 and y-intercept 'C' = 500

math work pls help :)​

Answers

Answer:

c. ASA

Step-by-step explanation:

please help quick i will give brainlist!!!!!!

Answers

Answer:

a) 75/3=25/1

Step-by-step explanation:

25kg:1kg and b is I need more evidence

(7x^3)(3x^7)
Multiply.
Your answer should be a monomial in standard form.

Answers

The answer would be 21x^10

pls help i really really need help on this. We just learned this but i can't remember it.
I'm really sleepy and wanna sleep. So i would appreciate your help.

:)

Answers

Answer:

114 cm²

Step-by-step explanation:

Area of shaded region

= area of circle -area of square

[tex]\boxed{area \: of \: circle = \pi {r}^{2} }[/tex]

Given that radius= 10cm, r= 10cm.

[tex]\boxed{area \: of \: square = side \: \times side}[/tex]

Let the length of a side of the square be x cm.

Applying Pythagoras Theorem,

10² +10²= x²

100 +100= x²

x²= 200

[tex]x = \sqrt{200} [/tex]

Area of square

= x²

= 200cm²

Area of shaded region

= 3.14(10²) -200

= 3.14(100) -200

= 314 -200

= 114 cm²

(Just the first question) please help!

Answers

Answer:

Altitude: 11 1/4

Step-by-step explanation:

-3 1/4 x 9 = -29 1/4

Leftover from 35: 5 3/4 + 5 1/2 = 11 1/4

Good luckkk!!

What is the area of the following circle with a radius of 4

Answers

Answer:

50.24

Step-by-step explanation:

4*4*3.14=16*3.14=50.24

Answer:

50.265

Step-by-step explanation:

Formula : A=

[tex] \pi 4 { }^{2} [/tex]

Pllssss helppppp thank u

Answers

Bike is rented for $9/hour and scooter can be rented for $10/hour. So for the bike it would be 9b (9xb) and the scooter is 10s (10xs) for the total cost of both of them the answer is 9b+10s

(3.2 + 6.8)x - (36 divided by 4)x PLEASE HELPPP

Answers

Answer:

i dont no but what i got was 10x+144d^3 but do u want to sovle for x i got u X

Step-by-step explanation:


Find the value of x.

Enter your answer

Answers

Answer:

118 degrees

Step-by-step explanation:

33 + 29 + x = 180

62 + x = 180

x = 118

Answer:

x+29+33=180sum interior angle of triangle

x=180-62=118°

Learning task 1. Using the given organizer,write the necessary information to complete the concept about seismic waves.

Answers

Answer:

hello the organizer associated with your question is missing attached below is missing organizer

answer :

attached below

Step-by-step explanation:

Seismic waves are a type of energy waves that occur through the layers of the Earth. they are caused by various natural disasters such as ; Earthquakes, landslides e.t.c although they can be caused by man-made explosions as well.

Seismic waves can be grouped into : body and surface waves

attached below is the complete information needed in the organizer

26. The two triangles below are similar. What
is the perimeter of triangle XYZ?

Answers

Answer:

24

Step-by-step explanation:

6 ÷ 15 = 0.4

X to Y = 20 × 0.4 = 8

Y to Z = 25 × 0.4 = 10

Perimeter: a + b + c

6 + 8 + 10 = 24

Even I am surprised by what I wrote. Hopefully, it is right and helps you ^-^ Please comment if you have any questions.

-Tay did this

A student jogs 28 laps around the track at school. How long will it take for the student to jog 28 laps if he
travels 2 laps in 1.5 minutes? (Hint: This is a 2-part question.)
hellpppp

Answers

Answer:

hgvhbgvbhgvbhugvbhuu b

List all the integers that satisfy

2< x < 6

Answers

Answer:

3,4,5

Step-by-step explanation:

Integers means whole number

< and > means that the integers can't be the same as the number before.

Hope that helps!!

An aquarium can hold 48 gallons of water. If the aquarium is filled with containers holding 12 quarts of water each, how many containers will it take to fill the aquarium with water?

Answers

Answer: 16 containers

Step-by-step explanation:

First and foremost, we should note that:

4 quarts = 1 gallon

48 gallons = 48 × 4 = 192 quarts

Since the container holds 12 quarts of water each, the number of containers needed to fill the aquarium with water will be:

= 192 quarts / 12 quarts

= 16 containers

22
Which of the following best describes the equation below?

y= 3x^2 + 5
A.
linear
B.
both linear and nonlinear
C.
neither linear nor nonlinear
D.
nonlinear
Reset Submit

Answers

I think it is c sorry if I’m wrong

3x-5=1;9x-3=15;verifica para:x=2​

Answers

Answer:

1=1

15=15

Step-by-step explanation:

3x-5=1                     x=2

9x-3=15

3(2)-5=1

9(2)-3=15

6-5=1

18-3=15

1=1

15=15

The total commission, in dollars, Jessie earned on selling cars at a dealership in two weeks is given by the expression 800+400x. She earns the same amount of commission per car each week. Which situation could be described by this expression?

Answers

Answer: B. Jessie sold 2 cars in the first week and x number of cars in the second week, earning a commission of $400 on each car.

Step-by-step explanation:

The options include:

A. Jessie earned a total commission of $800 in the first week and x dollars in the second week.

B. Jessie sold 2 cars in the first week and x number of cars in the second week, earning a commission of $400 on each car.

C. Jessie sold 1 car in the first week, earning $800, and x number of cars in the second week, earning a total commission of $1,200.

D. Jessie earned a commission of $800 on each car in the first week and $400 on each car in the second week, selling x number of cars each week.

The situation that could be described by this expression will be option B "Jessie sold 2 cars in the first week and x number of cars in the second week, earning a commission of $400 on each car". This will be:

= (400 × 2) + 400(x)

= 800 + 400x

Can somebody plz help answer both these word problems and (write amp equation for each problem and solve) thx :3

WILL MARK BRAINLIEST WHOEVER ANSWERS THESE FIRST!!!:DDD

Answers

Answer:

14. She deposited $15.50 into her bank.

15. The width would be 900.

Step-by-step explanation:

14. 245.60 + x = 261.10

x = 15.50

245.60 + 15.50 = 261.10.

She deposited $15.50 into her bank and resulted in her new bank balance appearing as $261.10.

15. Width is 900 cm

Length is 12 cm.

A = L X W = 108

A = L * 3/4L

108 = 3/4L2

Divide both sides by 3/4: multiply both sides by the inverse of 3/4 or 4/3.  

(4/3)*108 = L2

144 = L2

√144 = L

12 = L

W = 3/4*12

W = 9

Before we finish:

 

A = 108 = 9 x 12 = 108

W/L = 3/4 = 9/12 = 3/4

The width of the rectangle would be 3/4.

Part A: What is the shortest distance between the gymnasium and the library? Round your answer to the nearest tenth of a kilometer.


Part B: Gabe walks the shortest distance from his house to the gymnasium, then the shortest distance to the library. What is the total distance Gabe walked?

Answers

Answer:

4.5 km

10.3 km

Step-by-step explanation:

The shortest distance from gymnasium to library:

Each square box representing 1 unit

1unit = 1 km

A.)

Distance, d ;

Using Pythagoras :

d = sqrt(2² + 4²)

d = sqrt(4 + 16)

d = sqrt(20)

d = 4.47

d = 4.50 (nearest tenth)

Shortest Distance from gymnasium to library

B.)

shortest distance from his house to the gymnasium, then the shortest distance to the library

House to gymnasium (d1) :

d1 = sqrt(3² + 5²)

d1 = sqrt(9 + 25)

d1 = sqrt(34)

d1 = 5.83

Gymnasium to Library (d2) :

d2 = sqrt(2² + 4²)

d2 = sqrt(4 + 16)

d2 = sqrt(20)

d2 = 4.47

Total distance = (d1 + d2) = (5.83 + 4.47) = 10.3km

2x²-3x-5 (Factor completely)

Answers

[tex]\tt{} {2x}^{2} - 3x - 5[/tex]

[tex]\tt{} {2x}^{2} + 2x - 5x - 5[/tex]

[tex]\tt{}2x \times (x +1 ) - 5(x + 1)[/tex]

[tex]\tt{}(x + 1) \times (2x - 5)[/tex]

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