What is the meaning of algebra and expressions

Answers

Answer 1

In mathematics, an algebraic expression is an expression built up from integer constants, variables, and the algebraic operations (addition, subtraction, multiplication, division and exponentiation by an exponent that is a rational number). For example, 3x2 − 2xy + c is an algebraic expressio

Answer 2

Answer:

Algebra is a branch of mathematics that substitutes letters for numbers. Algebra is about finding the unknown or putting real-life variables into equations and then solving them. Algebra can include real and complex numbers, matrices, and vectors. An algebraic equation represents a scale where what is done on one side of the scale is also done to the other and numbers act as constants.

Expressions is a Numbers, symbols and operators (such as + and ×) grouped together that show the value of something.  

Examples:

• 2 + 3 is an expression

• 3 − x/2 is also an expression


Related Questions

maya picks 16 vegetables 6 of them are carrots the rest are cucumbers then she gives away 5 cucumbers how many cucumbers does maya have now

Answers

Answer:

5

Step-by-step explanation:

First subtract 6 from 16 to find how many cucumbers she has,

16 - 6 = 10

Now we know she has 10 cucumbers.

Subtract 5 from the 10 cucumbers to find out how many she has after giving away 5.

10 - 5 = 5

After subtracting the 5 cucumbers she gave away, we are left with 5

This means Maya has 5 cucumbers now

The measure of an interior angle of a regular polygon is 144°. Find the number of sides in the polygon



• n = 4



• n = 6



• n = 10



• n = 15

Answers

Answer:

The number of sides of the regular polygon is 10

Which situation represents a proportional relationship?
A) The cost of purchasing a basket of apples for $2.00 per pound plus $4.00 for the basket

B) The cost of purchasing apples for $2.25 per box of apples with a delivery charge of $5.00.

C)The cost of purchasing apples for $2.75 per pound with a coupon for $2.00 off the total cost.

D) The cost of purchasing apples for $2.50 per pound plus a shipping fee of $0.15 per pound.


PLEASE HELP MEE ILL GIVE OUT BRAINLIEST

Answers

Answer:

D

Step-by-step explanation:

(8 points) will mark brainliest!! pls help:)

Answers

The answer is -21/8 or -2 5/8

The diagram below shows two parallel lines, m and n, cut by a transversal, k. Angles A, B, and C are shown in the diagram

A student writes a proof to show that the corresponding angles, A and B, are congruent. The student's proof is shown below

A. Both reason 2 and Reason 3 are correct as shown in the table
B. Reason 2 is correct, but Reason 3 should "Alternate interior angles are congruent"
C. Reason 2 should be "Alternate interior angles are congruent," but Reason 3 is correct
D. Both Reason 2 and Reason 3 should be "Alternate interior angles are congruent"

(look at picture to understand better)

Answers

9514 1404 393

Answer:

  B

Step-by-step explanation:

Angles A and C are vertical angles; angles B and C are alternate interior angles. Only line 3 of the proof is in error.

The applicable description is found in choice B.

The cost of a ride in a taxi is $2.50 for the first half-mile plus a constant amount per half-mile after that. The sequence below shows the pattern of numbers that appear on the driver's screen.


2.50, 2.75, 3.00. 3.25, 3.50, 3.75


Part A: Write a recursive function that can be used to determine f(x), the cost in dollars, for a ride in the taxi of, x, half-miles.

Answers

Answer:  2.50 + 0.35(15.75-1)*4 = $23.15 is the answer

Step-by-step explanation: Hope this helps!

Leah's bill for breakfast at a restaurant was $68. She left an 18% tip. What was the amount of the tip?​

Answers

Answer:

55.76

Step-by-step explanation:

55.76

18% of $68 would be $12.24

will give brainiest pls help!

Answers

Step-by-step explanation:

given,

x² + y² = 40

2xy = 24

(x + y)² = x² + 2xy + y²

so,

40 + 24 = 64

therefore option C is correct

hope this answer helps you dear!

Answer:

The answer should be C which is 64

geomtry plzzz help 15 points

Answers

Answer:

19

Step-by-step explanation:

they give you xz, and they want half, so just divide 38 by 2

Mr. Wilhelm got a $2 discount on
the purchase of 5 bags of peat moss.
If he paid $7.40, what was the price
for a bag of peat moss before the
discount?

Answers

Answer:

9.40

Step-by-step explanation:

7.40+2.00=9.40

f(x)= -2x^3 +14x -8
g(x)= 2x+6

Answers

Answer:

F(2x+6)=-16x^3-144x^3-404x-356

Step-by-step explanation:

what is the estimate of 45.15

Answers

Answer:

The estimate would be:

(one of them :)

45 (if your doing the entire number)

0 (if your rounding out of 100)

45.2 (nearest hundredth)

45.0 (nearest tenth)

50 (nearest tens)

Hopefully one of these works for you.

The area of a rectangle is 24 square inches. Determine both dimensions if the length is 6 inches less than three times the width

Answers

Answer:

width is 4 inches

length is 6 inches

Step-by-step explanation:

the length is 6 inches less than three times the width

l = 3w - 6

a = l * w

a = (3w - 6)w

a = 3w^2 - 6w

area of the rectangle is 24 square inches

3w^2 - 6w = 24

subtract 24 from both sides

3w^2 - 6w - 24 = 0

Divide both sides by 3

w^2  - 2w - 8 = 0

Factor

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

w = {-2, 4}

disregard the negative root since measurement must be positive

w = 4

l = 3w - 6

l = 3(4) - 6

l = 6

AYUDA!!!!!!! Pls help me answer

Answers

You don't mention what's the question

E is 54, f 126. D 126

Is 6,702,512 divisible by 9?

Answers

Yes it is also add more points next time

Juan wants to buy a video game for $63. He saves $12 every Friday. Part A. Create an equation to represent Juan's total savings, y, in dollars, after x Fridays. y​

Answers

Answer:

Answer in explanation.

Step-by-step explanation:

An equation to represent Juan's total savings y, in dollars, after x Fridays will be;

⇒ y = 12x

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Juan wants to buy a video game for $63.

And, He saves $12 every Friday.

Now,

Let total dollars after x Friday = y

And, He saves $12 every Friday.

So, We can formulate;

⇒ Total money (y) = 12x

⇒ y = 12x

Thus, An equation to represent Juan's total savings y, in dollars, after x Fridays will be;

⇒ y = 12x

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

Which of the following is NOT true about the expression?
-5x3 + 12x2 - 9x - 8
It has a leading term of 5
O The leading coefficient is 5,
The constant term is 8.
ch
O There are no negative coefficients

Answers

The statements which is not true about the expression given is; It has a leading term of 5.

According to the question;

The expression given is; -5x3 + 12x2 - 9x - 8.

Since it is an expression; all other statements can be assumed true except; It has a leading term of 5; in which case the leading term is; -5x³

As such, the statements which are not true is;

It has a leading term of 5

Read more:

https://brainly.com/question/11386252

What is the value of g(1)? What is the value of g(-12)? For which of the following x-values is g(x)=-6

Answers

The numeric values of the function are given as follows:

g(1) = 4.g(-12) = -10.g(x) = -6 for -8 ≤ x < -1.

g(1)

When x = 1, the function has a closed value on the graph at y = 4, hence:

g(1) = 4.

g(-12)

When x = -1,2 the function is passing through y = -10, hence the numeric value is given as follows:

g(-12) = -10.

g(x) = -6

The function is passing through the horizontal line y = -6 when -8 ≤ x < -1, hence:

g(x) = -6 for -8 ≤ x < -1.

Learn more about the numeric values of a function at https://brainly.com/question/28296698

#SPJ1

hey I need someone to help me

Answers

Answer:

A and F

Step-by-step explanation:

You plug in each one and see which ever one gets 20.

Please solve for a: b = 2 - (1/a)

Answers

[tex]b = 2 - \dfrac 1a\\\\\implies ab = 2a -1\\\\\implies 2a -ab = 1\\\\\implies a(2-b) =1\\\\\implies a = \dfrac 1{2-b}[/tex]

Which equation models this situation?
The sum of 23 and a number is 39.
O A. 23 + x = 39
B. 23 - x = 39
C. 39 + x = 23
O D. 23+ 39 = x

Answers

A is the correct answer

-3y<-14 i dont get the dam question

Answers

Answer:

Step-by-step explanation:

-3y<-14

divide both sides by -3

y<4.67

i’m not exactly sure what the question is asking or what you’re trying to find, but this is what i could figure out.

Answer:

y>14/3

I'll provide the step by step solution too.

=3y÷(-3)>-14÷(-3)

y>-14÷(-3)

y>14÷3

turn it into a fraction

y>14/3

hence your given answer above

Which table does NOT represent a linear function?

Answers

Answer:

3rd

Step-by-step explanation:

3rd one because rate of change is not same

18 - 15 / 0 - -1 = 3

20 - 18 / 1 = 2

21 - 20 / 1 = 1

Answer: i honestly think it would be the table with:

-1,15

0,18

1,20

2,21

Step-by-step explanation: hope this helped ty for the points

Pease someone help me with this.

I just need two more tiles to create but I don't know how they would look like.

I will show below what I have filled and what the question is asking.

Question: How many different layouts are possible for a path that is five feet long? Draw them all here:

Answers

Answer:

go get that girl

Step-by-step explanation:

sike  you use what you got the first time

Answer:

If the path is 5 feet long, then you could only have a limited amount of layouts...so- you could only have 5 limited spaces in one layout, making it 5 DIFFERENT LAYOUTS.

(I don't know what they're really asking, but I did what makes sense, SORRY if I'm wrong, I'm going to try and solve it better/draw it.)

PLEASE HELP ⁉️ POR FAVOR SOMEONE IM DESPERATE tHIS IS DUE IN THE mORiNG!

Answers

Answer:

See below

Step-by-step explanation:

1) Total points = 252) Points earned = 213) Percent score = 84%

Proportion:

21 / 25 = 84% / 100%

Solving the others in the table

21 out of 25 points:

21/25 = x/ 100 ⇒ x = 100*21/25 = 84

15 out of 20 points:

15/20 = x/100 ⇒ x = 100*15/20 = 75

47 out of 50 points:

47/50 = x/100 ⇒ x = 100*47/50 = 94

28 out of 30 points:

20 / 30 = x/100 ⇒ x = 100*20/30 = 66.66

19 out of 45 points:

19/45 = x/100 ⇒ x = 100*19/45 = 42.22

3 out of 4 points:

3/4 = x/100 ⇒ x = 100*3/4 = 75

A gopher lives in an underground burrow. It starts at a certain point, p, underground and digs straight down to triple its distance under
the surface. It then climbs straight down another 2 feet. Its final position is deeper than 8 feet under the surface.
What was the gopher's original position, p, relative to the surface?
Enter your answer in the box to complete the inequality.
р

Answers

Answer:

The answer is <-2

Step-by-step explanation:

Answer: I'm late but here you go

Step-by-step explanation:

There are 564 men and women working in a factory.
There are twice as many women as men.
How many men are working in the factory?

Answers

Answer:

564x2=1128 men

Step-by-step explanation:

Answer:

there are1139 women are working in the factory

$250, 3.4%, 3 years what would my interest be?

Answers

Ur interest should be 3.4 divided by 250 times 3

A bag contains 11 apples and 6 oranges. If you select 6 pieces of fruit without looking, how many ways can you select exactly 5 apples

Answers

Answer:

you have a 11/17 percent chance of getting an apple

Step-by-step explanation:

if there are 11 apples and 6 oranges. 11 out of 17 times you will get an apple

What is 34÷18? Explain or show your reasoning.

Answers

Answer:

1.8889

Step-by-step explanation:

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