Simplify the following 2a + 3b + 4a – 7b

Answers

Answer 1
6a - 4b

You would take 2a and add 4a to it which will give you 6a. Then you will take -7b and add 3b to it. I usually just subtract when the bigger number is a negative. Once you do that though you will get -4b. Finally your answer will be 6a -7b
Answer 2

Answer:2a

We add 2 and 3 and we get 5 then we do 4-7=-3. Then we do 5-3=2 and we add a.(we only add all a’s when we multiply)

And the answer is 2a


Related Questions

what is another name for the center on the angle

Answers

Answer:

Vertex I think

Step-by-step explanation:

What are the zeroes of f(x) = x2 − 6x + 8? (1 point) x = −4, 2 x = −4, −2 x = 4, 2 x = 4, −2

Answers

Answer:

x = 4 , 2

Step-by-step explanation:

x² - 6x + 8=0

(x -2)(x + 4)=0

x= 4,2

Therefore the zeros of f(x) are 4 and 2.

Hope this helps.

11. The chess club has 50 members. They want to raise $680 for a trip to a competition. The school will give $130. How much must each member pay?

Answers

Answer:

$11

Step-by-step explanation:

Total members = 50 ,    Raised amount = $680

If school gives $130 then all the 50 members will pay the remaining amount.

Remaining amount to be paid by the 50 members = $680 - $130 = $550

50 members = $550

1 member = $550/50

1 member = $ 11 ( Answer)

At Sami's Shoe Warehouse, it takes 4 over 5 day to complete 1 over 10 of an order of sneakers. At this rate, how long will it take to complete the entire order of sneakers? (5 points)

6 days
8 days
11 and 1/4 days
12 and 1/2 days


HELP AASAP BRAINLIEST WILL BE AWARDED

Answers

The answer is 8 days.

4/5 divided 1/10

4/5 x 10/1

40/5 = 8

Answer:

8 days

Step-by-step explanation:

if it takes 4/5 of a day to complete 1/10 of the order of sneakers, you are trying to determine how long it will take to get to 10/10.

so first we can determine what we have to multiply 1 by to get 10.

the answer is 10, so we can multiple by 10 to determine the amount of days it took:

4/5 x 10 and 1/10 x 10

therefore: 4/5 x 10 = 8

meaning, it would take 8 days to complete an entire order of sneakers.

what is the value of the expression 3 1/4 - 1 7/8 =

Answers

The answer is 45/8
You have make sure that the denominator has the same value!
31/4-17/8=62/8-17/8
=45/8

What is the angle of rotation from figure D to figure D’ ? Assume that the center of rotation is the origin.

A. 270° clockwise
B. 90° clockwise
C. 90° counterclockwise
D. 180° counterclockwise

Answers

Answer:

Option B.

Step-by-step explanation:

We take a point D from the figure attached,

Coordinates for the point D → (-1.5, 3.5)

And coordinates of D' → (3.5, 1.5)

Coordinates of D when rotated about the origin,

Option A. Rotated by 270° clockwise.

Rule to be followed,

D(x, y) → D'(-y, x)

D(-1.5, 3.5) → D'(-3.5, -1.5)

Therefore, Option A. is incorrect

Option B. rotation by 90° clockwise

Rule to be followed

D(x, y) → D'(y, -x)

D(-1.5, 3.5) → D'(3.5, 1.5)

Therefore, Option B. is correct.

Option C. 90° counterclockwise

Rule to be followed,

D(x, y) → D'(-y, x)

D(-1.5, 3.5) → D'(-3.5, -1.5)

This option C is incorrect.

Option D. 180° counterclockwise

Rule to be followed,

D(x, y) → D'(-x, -y)

D(-1.5, 3.5) → D'(1.5, -3.5)

Therefore, option D is incorrect.

Answer:

B. 90 clockwise

Step-by-step explanation:

directions for constructing the orthocenter of a triangle?​

Answers

Answer:

6IMRYUr5yt

Step-by-step explanation:

rfuiyrbfbnggrnteetS32

Please help me with the question below

Answers

Answer:

A

Step-by-step explanation:

Find the volume of the tank but dont use the height of the tank instead use the height of the water in the tank

Tank is cuboid in shape thus:

Volume=length xwidthxheight

=60in×24in×3in

=4320 cubic inches

note:height is the same as depth

The answer is A 4,320 cubic inches

Which algebraic expression is a polynomial with a degree of 5?

Answers

I hope this’s correct!


Write an algebraic rule to describe the translation B(3,2)→ 8'(-5,0).

Answers

Answer:

<-8,-2>

Step-by-step explanation:

Answer:

(x - 8, y - 2)

Step-by-step explanation:

x-coordinates:

3 and -5

How do you get from 3 to -5?

You subtract 8

This means:

x - 8

y-coordinates:

2 and 0

How do you get from 2 to 0?

You subtract 2

This means:

y - 2

Put it together:

(x - 8, y - 2)

Therefore, the algebraic rule is subtract 8, subtract 2.

If r = 6 units and h = 13 units , what is the volume of the cylinder shown above? Use 3.14 for pi

Answers

Answer:

V= 468 * 3.14 = 1.469.52

Step-by-step explanation:

Volume of a cylinder = π r^2 h

  V= 3.14  *6^2 * 13

   V= 1469.52 cubic unit                      

1.) Predict how many times you will roll a number less than 3 if you roll a standard number cube 100 times. Round to the nearest integer, if necessary.

You will roll a number less than 3 about____
times.

2.) you flip a fair coin 28 times. About how many times would you expect heads to appear?


If a fair coin is flipped 28 times then heads should appear about______
times.

Answers

Step-by-step explanation:

i dont know one. but number to is 14. hope it helps

How are the following three expressions different from each other, if indeed they are? do not just state the value of each but explain what may be the same or different. Be as specific as you can be in your response.
1.(-2)^2
2.-2^2
3. -(2)^2

Answers

Answer:

Below.

Step-by-step explanation:

Number is different to the other 2. Its value is +4 because negative 2 squared = + 4.

The other 2 have negative values and -2 = -(2) so they have the same value, -4.

Be certain you have solved for both variables in the system of equations. Solve the following systems of equations algebraically. Show your work. 5x-y=-5 3x-5y=-3

Answers

Answer:

x= 1.27, y= 11.4 (to 3s.f.)

Step-by-step explanation:

5x -y= -5 -----(1)

3x -5y= -3 -----(2)

From (1):

-y= -5x -5

divide by -1 throughout:

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

Subst. (3) into (2):

3x -5(5x +5)= -3

3x -25x +25= -3 (expand)

-22x= -3 -25

-22x= -28

divide by -22 throughout:

x= 1.2727 (5 s.f.)

x= 1.27 (3 s.f.)

subst. into (3):

y= 5(1.2727) +5

y= 11.4 (3 s.f.)

A rectangular prism has a width of 5 cm, a height of 8 cm and a depth of 2 cm. What is the volume of the
prism?

Answers

8 x 2 x 5 = 80

So the volume of the prism would be 80 cubic centimeters

the volume of the rectangular prism is 80 cubic centimeters.

The volume of a rectangular prism can be calculated by multiplying its length, width, and height. In this case, the width is 5 cm, the height is 8 cm, and the depth is 2 cm.

Volume = length × width × height

Substituting the given values into the formula:

Volume = 5 cm × 8 cm × 2 cm

Calculating the multiplication:

Volume = 80 cm³

Therefore, the volume of the rectangular prism is 80 cubic centimeters. This means that the prism can hold 80 units of a cubic centimeter, such as water or any other substance.

Learn more about volume here

https://brainly.com/question/9850276

#SPJ2

Solve the equation: 9k - 2 - 43​

Answers

If simplified the new equation is 9k-45

What is 181.5% of 18?

Answers

Answer:

32.67

Step-by-step explanation:

18% of 181.5 is 32.67, which is much easier to solve than 181.5% of 18. It works flipped over.

The solution of expression is,

⇒ 32.67

We have to given that;

To find the value of 181.5% of 18.

Since, To Calculate the percent of a number , divide the number by whole number and multiply by 100.

Hence, We can simplify as;

⇒ 181.5% of 18

⇒ 181.5/100 × 18

⇒ 1.815 × 18

⇒ 32.67

Thus, The solution of expression is,

⇒ 32.67

Learn more about the percent visit:

https://brainly.com/question/24877689

#SPJ6

Which of the following is true about translations? Question 2 options: A) Translation changes the lengths of the image. B) Translation creates an image congruent to the given image. C) Translation changes the shape and angles of the image. D) Translation creates an image similar to the given image.

Answers

Using translation concepts, it is found that the correct statement is given by:

B) Translation creates an image congruent to the given image.

D) Translation creates an image similar to the given image.

What is a translation?

A translation is represented by a change in the image position, keeping the angles and the length's of the sides.

The translated image is congruent and similar to the original image, hence options B and D are correct.

More can be learned about translation concepts at https://brainly.com/question/4521517

#SPJ1

Answer:

D) Translation creates an image similar to the given image.

Step-by-step explanation:

Nina and Jo both ran an 8 km race. Nina took 45 minutes to run the whole race. Jo started the race 4 minutes later than Nina but caught up when they had both travelled 5 km. If Nina and Jo both ran at constant speeds, what is Jo's speed to 2 dp?

Answers

Answer:

6.0869 mph

Step-by-step explanation:

Nina:

8 km: 45 mins

Jo:

8 km: 49 mins

Speed = distance / time

Speed= 8 / 49

Alice was flying a kite when a gust of wind caught the kite in a tree. Alice is standing 10 feet from the base of the

tree, looking up at her kite at an angle of 25°. If Alice is 5 feet tall, approximately how high is the kite off of the

ground?

A4.66

B 9.66

C 21.45

D 9.23

Answers

Answer:

B. 9.66

Step-by-step explanation:

To find how high the kite is off the ground, we will follow the steps below;

we will use trigonometric ratio to solve the problem. That is;

SOH CAH TOA

sinФ = opposite / hypotenuse

cosФ = opposite / hypotenuse

tanФ = opposite / adjacent

from the diagram below

Ф = 25°

opposite = x

adjacent = 10 feet

The best trig ratio to use is tan

we can now proceed to insert the values into the formula

tanФ = opposite / adjacent

tan 25° = [tex]\frac{x}{10}[/tex]

cross-multiply

x = 10 tan25°

x ≈4.66 feet

height of the kite off of the ground = x + height of Alice

                                                     =4.66 + 5

                                                     =9.66 feet

Therefore, the kite is 9.66 feet high off  of the ground

You should draw a line of best fit for a scatter plot if there is no correlation among the data points. True False

Answers

Answer:

False

Step-by-step explanation:

N/A

What is a constant of proportionality in the equation 3y equals 2x?

Answers

Answer:

y=2/3x (y equals two-thirds x)

Step-by-step explanation:

3y=2x

(divide by 3 on both sides to get just the y value)

3/3y=2/3x

y=2/3x

If Tim Cook, CEO of Apple wants to make a list of the employees who are above 40, what process he will use? Option: 1.Data query 2.data sorting 3.data compiling

Answers

The answer is 2 data sorting

Given what is the domain in set notation? {x|x ∈ R, x ≥ 4} {x|x ∈ R, x ≤ 4} {x|x ∈ R, x ≥ 2} {x|x ∈ R, x ≤ 2}

Answers

Answer:

A

Step-by-step explanation:

answer on edg 2020

I NEED HELP PLS IF U HAVE THE WORK PLS PUT IT PLSSSSSS!!!:)

Answers

The answer is G because the line is going negative and it is f(x) =-x+2

Answer:

33. (2,7) graph's provided

34. g) it goes thru +2 on the y axis and it looks like it has a slope of -1, so -x

35. sorryyyy, i just honestly dont get it

ABCD is a quadrilateral. Three of the angles of ABCD measure 100°, 87, and 106°, respectively. Find the measure of the
missing angle
A. 67
B. 74°
C. 80
D. 870

Answers

Answer:

A

Step-by-step explanation:

The angles in a quadrilateral add up to 360 degrees.

100 + 87 + 106= 293

360 - 293 = 67

The missing angle is 67°.  (A)

EVERY quadrilateral has four inside angles that add up to 360°.  It doesn't matter whether the quadrilateral is the size of a strep bacterium or the size of a galaxy. The inside angles always add up to 360°. It's a quadrilateral thing.

In this question, the first three angles add up to (100°+87°+106°) = 293°.

From there, it takes 67° more to get to 360°, so that's what the fourth angle has to be.

Wich property is represented by the equation shown below? 6 x 3 = 3 x 6 A) Multiplicative inverse property B) Multiplicative identity property C) Associative property of multiplication D) Commutative property of multiplication

Answers

Answer:

D) Communicative Property of Multiplication

Please give brainliest -3-

6. Mr Chua's car consumes petrol at an average rate

of 8 litres daily. Before Mr Chua begins his journey,

he tops up the petrol in his car to 100 litres. Given

that he will next top up the petrol in his car when

there are 20 litres left, form an inequality and solve

it to find the maximum number of days he can travel

before he has to top up the petrol in his car. 10

Answers

Answer: He can travel up to 9 days before he has to top up the petrol in his car.

Step-by-step explanation:

Hi, to answer this question we have to write an inequality with the information given:

The petrol available (100) minus the amount that his car consumes per day (8x) must be higher to 20 (liters left)

Mathematically speaking:

100- 8x > 20

Where x is the number of days.

Solving for x:

100-20>8x

80 > 8x

80/8> x

10>x

x <10

x must be less than 10 days .

He can travel up to 9 days before he has to top up the petrol in his car.

Solve for x.

x/3 ≤ −6



x≤−18
x≤−2
x≥−18
x≥−2

Answers

Answer:

-The value of [tex]x[/tex]:

[tex]x \leq -18[/tex]

Step-by-step explanation:

-Solve the inequality for [tex]x[/tex]:

[tex]\frac{x}{3} \leq -6[/tex]

-Multiply both sides by the denominator, which [tex]3[/tex]:

[tex]3 \times \frac{x}{3} \leq -6 \times 3[/tex]

[tex]x \leq -18[/tex]

So, the final answer would be [tex]x \leq -18[/tex].

Answer:

[tex]x \leqslant - 18[/tex]

First answer is correct

Step-by-step explanation:

[tex] \: \: \: \: \: \: \: \: \frac{x}{3} \leqslant - 6 \\ 3 \times \frac{x}{3} \leqslant - 6 \times 3 \\ = \: \: \: x \leqslant - 18[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Players on a softball team are randomly given a uniform with a two-digit number on the back. The numbers range from 10 to 99. What is the probability that the number on the uniform will end in 0?

Answers

Answer:

1/10 or 10%

Step-by-step explanation:

99 possible numbers starting from 10

1,2,3,4,5,6,7,8,9 does not count

99-9=90

90 numbers total

possible numbers with a 0: 9

9/90 = 1/10 = 10%

Other Questions
enAn excellent examples of a fascist government is that of the Italy duringthe Persian Gulf warthe Korean conflictWorld War IIWorld War I What is the unit of work? Explain whether the unit of work is a fundamental uintor derived unit1.What do you mean by a unit?2.unit or a derived unit.are the fundamental units used in physics?al Bureau of Weights and Me When nitrogen dioxide (NO2) gas from car exhaust combines with water in the air, it forms nitrogen oxide and nitric acid (HNO3), which causes acid rain, and nitrogen oxide. Balanced eqjation: (NO); 3NO2(g) + H20(l) --> 2HNO3(aq) + NO(g). A) How many molecules of NO2 are needed to react with 0.250 mol of H2O? B) How many grams of HNO3 are produced when 60.0 g of NO2 completly reacts? C) How many grams of HNO3 can be produced if 225 g of NO2 is mixed with 55.2 g of H2O? Which of the following audiences calls for a formal presentation? A. a business meeting B. a boy scout troop C. a third grade class D. a group of your own family Find sin 2x, cos 2x, and tan 2x if sinx =513and x terminates in quadrant I.alasin 2xUcos 2x=tan 2x10 The Maori are the native population of The HUAC investigation of Hollywood led to the jailing of a group of writers and directors known as the Hollywood Ten. true or false There are three terms we use when speaking of vehicle balance, what are they called?Pitch, Catch, and CloseRoll, Stop, and Go.Pitch, Roll, and Yaw. Which of the following errors could cause your percent yield to be falsely high, or even over 100%?Select ALL that apply.A.) Heating the sample too vigorously.B.) Handling the crucible directly with your hands.C.) Failing to completely decompose the sodium bicarbonate sample.D.) Taking the mass of the empty crucible without the lid, but including the lid in all other mass measurements. E.) Taking the mass of all samples with the lid included. Which are the roots of the quadratic function f(q) = q2 125? Select two options.q = 5q = -5q = 3q = -3q = 25 When there is inflation, a person can definitely expectmany banks to close.the purchasing power of money to decrease.a high number of companies to go out of business.a high rate of unemployment. Last year Carson Industries issued a 10-year, 13% semiannual coupon bond at its par value of $1,000. Currently, the bond can be called in 6 years at a price of $1,065 and it sells for $1,200. What is the bond's nominal yield to maturity Confide in Madame Defarge. It would be easier for the weakest poltroon that lives, to erase himself from existence, that to erase one letter of his name or crimes from the knitted register of Madame Defarge.1. Who is speaking?2. What is the register?3. How is the register kept secret? Please help ASAP.Will mark as brainliest. Our Winter Solstice occurs when the sun's rays directly hit the What subject does Biomedical science fall under? I will give brainliest answer When a project has a "hard gate," like being ready on time, how does that affect normal success criteria? Is it fair to judge a project with a critical completion date by normal project success standards? Why or why not? Suppose that a population of people has an average weight of 160 lbs, and standard deviation of 50 lbs, and that weight is normally distributed. A researcher samples 100 people, and measures their weight. Find the probability that the researcher observes an average weight of the 100 people to be between 150 and 170. [Round your answer to four decimal places] President Hoover believed in"rugged individualism." What doesthis term mean?A. It was time for parks to be built west of theMississippi.B. You want to solve your own problem, not havethe government do it for you.C. Citizens would be compensated for inventionssubmitted to the patent office.