Which of the following is not an expression?

A.2x+ 4

B.5–x

C.5x-2 13

D. 3 + x1

Step-by-step explanation:

your correct answer is the last one (x-1)/x²+3x+2.

the second equation lcm will be x²+3x+2 if you expand it .

hope this helps you.

The difference of the Expression is (x -1) / (x² + 3x + 2).

In mathematics, an expression is a phrase that has at least two numbers or variables and at least one math operation. Addition, subtraction, multiplication, or division are all examples of math operations. An expression's structure is as follows:

(Number/variable, Math Operator, Number/variable) is an expression.

We have,

x/ (x² + 3x + 2) - 1/ (x+ 2)(x+ 1)

Now, simplifying the expression as

x/ (x² + 3x + 2) - 1/ (x+ 2)(x+ 1)

= x/ (x² + 2x + x + 2) - 1/ (x+ 2)(x+ 1)

= x/ x(x+ 2) + (x+ 2) - 1/ (x+ 2)(x+ 1)

= x/ (x+2) (x+1) - 1/ (x+ 2)(x+ 1)

= (x-1) / (x+ 2)(x+ 1)

= (x -1) / (x² + 3x + 2)

Thus, the difference of the Expression is (x -1) / (x² + 3x + 2).

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This shows that it will take the particle 23 secs to meet.

The distance travelled by each particle is 50cm

If two particles are projected simultaneously towards each other from opposite ends of a straight horizontal tube,

The first particle distances are 97cm, 93cm, 89cm... every 2secs

This form an arithmetic sequence and the nth term is expressed as:

Tn = a  + (n - 1)d

a is the first term = 97

d is the common difference = 4

Substitute

Tn = 97+(n - 1)(4)

Tn = 97 + 4n -4

Tn  = 4n  + 93

Similarly for the distances 49 cm, 47 cm, 45cm .....

This also forms an arithmetic sequence and the nth term is expressed as:

Tn = a  + (n - 1)d

a is the first term = 49

d is the common difference = 2

Substitute

Tn = 49+(n - 1)(2)

Tn = 49 + 2n -2

Tn  = 2n  + 47

For the particles to meet, this means that 4n  + 93 = 2n + 47

4n - 2n = 47 - 93

2n = -46

n = -23

This shows that it will take the particle 23 secs to meet.

To get the distance travelled by each particle

Tn  = 4n  + 93

T2 = 4(2) + 93

T2 = 101

For the other sequence;

Tn  = 2n  + 47

T2  = 2(2)  + 47

T2 = 51

Taking the difference;

D = 101 - 51 = 50cm

Hence the distance travelled by each particle is 50cm

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Answer:

[tex]f(x) = - 2 {x}^{3} \\ g(x) = 3x - 5 \\ h(x) = x - 1 \\ g(h(x)) = 3(x - 1) - 5 \\ = 3x - 3 - 5 = 3x - 8 \\ f(g(h(x)) )= - 2 {(3x - 8)}^{3} \\ f(g(h(3)) )=- 2 {(3(3) - 8)}^{3} \\ = - 2 {(9 - 8)}^{3} \\ f(g(h(3)) )=- 2[/tex]

Answer:

Step-by-step explanation:

0.05 divided by 1/10

0.05 : 1/10 =

0.05 * 10 =

0.5

Answer:

2x2x3x3 = 36

or

2^2*3^2 = 36

Answer: 216

Step-by-step explanation:its just 6x6x6

See the picture above for the solution.

Answer:

9 cm

Step-by-step explanation:

→ Remember how many sides a square has

4

→ Divide it by the perimeter

36 ÷ 4 = 9

Step-by-step explanation:

you know what a square is ?

it is a closed shape with 4 sides.

all 4 sides are equally long.

all 4 inner angle are 90 degrees.

you know what a perimeter is ?

it is the circumference, the whole way one time around the shape, around the outline of a given structure.

if you don't know the terms, for heaven's sake, please ask your teacher, your friends, your parents or us here directly.

don't wait. don't be afraid or ashamed.

because this here is an extremely simple problem to solve, once you understand the words used.

so, as per the explanations, the perimeter of a square is the sum of the lengths of all sides. and because all sides are equally long, this means the perimeter is simply 4 times the length of one side.

36 = 4×side

side = 36/4 = 9cm

so, each side of the square is 9cm long.

Answer:

-12

-18

Step-by-step explanation:

-n+8=20

-n=20-8

n=12

-36=n-18

-n=-18+36

n=-18

Answer:

that 8/3

Step-by-step explanation:

thats because it goes too 2 2/3

Answer:

-5

Step-by-step explanation:

b1 = +1

b2= -5

b3 = +25

b4 = -125

q = -5  (if u times it -5, u will have every second + or -)

q = [tex]\frac{b2}{b1}[/tex] = -5:1 = -5

9514 1404 393

Answer:

  the sum of 8 terms of the series is -65104.

Step-by-step explanation:

The first term is 1.

The common ratio is (-5)/(1) = -5.

The sum of 8 terms is ...

  S8 = a1(r^8 -1)/(r -1)

  S8 = 1((-5)^8 -1)/((-5) -1) = 390624/-6 = -65104

The sum of 8 terms is -65104.

__

The 8th term is 1·(-5)^(8-1) = -78,125.

Answer:

75 marks

Step-by-step explanation:

one question worth 3 marks

so 25×3=75

-2/3

slope can also be classified as m in y=mx+b

Hi there!  

»»————-　★　————-««

I believe your answer is:  

[tex]-\frac{2}{3}[/tex]

»»————-　★　————-««  

Here’s why:  

⸻⸻⸻⸻

I am assuming that the equation is: [tex]y = -\frac{2}{3}x-5[/tex].

⸻⸻⸻⸻

[tex]\boxed{\text{General Slope-Intercept Form:}}\\\\y = mx+ b\\\rule{150}{0.5}\\\text{m - Slope}\\\text{b - Y-Intercept}\\\rule{150}{0.5}[/tex]

⸻⸻⸻⸻

»»————-　★　————-««  

Hope this helps you. I apologize if it’s incorrect.  

Answer:

73,000

Step-by-step explanation:

if the hundred is smaller than 500, you round down, if it's larger then round up :)

Answer:

14 hours

Step-by-step explanation:

Answer: -45j -9k

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex] - 9 \: \: . \: \: (5j + k) \\ - 9(5j) -9(k) \\ - 45j - 9k \\ [/tex]

Answer:

the answer is y=−3/7x+5

Step-by-step explanation:

sorry if I did it wrong

The total pies Anna can bake is 22.

The total pies Anna can bake would be determined by the amount of cups of sugar she has. Anna has already baked 17 pies. From the question, one cup of sugar can bake two pies. This means that the number of additional cups she has would be multiplied by two in order to determine the total number of pies she can bake.

Pies Anna can bake = additional cups of sugar x 2

11 x 2 = 22 pies

A similar question was answered here: https://brainly.com/question/19495512?referrer=searchResults

Answer: 30 pizzas are sold per hour so 180 pizzas are sold 6 hours

Step-by-step explanation:

If i make 30 pizzas per hour i can make 180 pizzas in 6 hours

so 6 x 30 = 180

i would know this because i work at a pizza place

Answer:

Step-by-step explanation:

Answer:

62.24

Step-by-step explanation:

The predicted temperature after 3 minutes will be 62.24 °C. Then the correct option is B.

A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.

A cup of coffee's temperature was measured over a 30-minute period in degrees Celsius.

Let T be the temperature and t be the time. Then the regression equation is given as,

ln T = 4.20 - 0.023 t

Then predicted temperature after 3 minutes is given as,

ln T = 4.20 - 0.023 x 3

ln T = 4.20 - 0.069

ln T = 4.131

T = 62.24 °C

The predicted temperature after 3 minutes will be 62.24 °C. Then the correct option is B.

More about the function link is given below.

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9514 1404 393

Answer:

  w^3

Step-by-step explanation:

The multiplicative identity element is 1. That means 1 times anything is just that thing.

  1 × w^3 = w^3

_____

Additional comment

That is one of the reasons why a coefficient of 1 is (almost) never shown.

In algebra, multiplication can be indicated a number of ways.

  ab . . . . placing values next to each other (sometimes with a small space)

  (a)(b) . . . . placing values next to each other with either or both in parentheses

  a·b . . . . . using a multiplication symbol between the values.

There are several different multiplication symbols in common use:

  * — asterisk

  · or • — centered dot

  × — centered "x" multiplication symbol

  x — the lower-case letter x (when it cannot be confused with a variable)

  . — a period (when it cannot be confused with a decimal point). This is uncommon in the US, but is seen occasionally when some of the other symbols are not available. It is more common outside the US.

_____

The multiplication of a constant and a variable expression cannot actually be accomplished. It can only be "indicated." If you wanted to multiply 2*w^3, that product would be indicated in any of the ways described above. Perhaps the simplest and least-confusing to most people is ...

  2w^3

Multiplying 1*w^3 can be indicated the same way: 1*w^3. In view of the special treatment given to a coefficient of 1, we would not simplify this to

  1w^3

Rather, we would simplify it to ...

  w^3

Answer:

Minimum payment

Step-by-step explanation:

A minimum payment is the least amount that one must pay to be "up-to-date" with one's credit card payments.

In this exercise we have to use the knowledge of finance and identify in the given statement which term is used correctly:

Minimum payment

So the term used in this exercise corresponds to:

A minimum fee happen the minimal amount your credit card issuer will acknowledge toward your charge card balance each temporal length of event or entity's existence. You must pay not completely this amount for your fee to be deliberate "according to schedule," and to prevent late charge for service or privilege and other punishment.

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Answer:

metric po

Step-by-step explanation:

measurements and metric units of measure

Answer:

$4.24

Step-by-step explanation:

100%-15%=85%

85/100x4.99=4.2415

4.2415 rounded off to nearest cent =4.24

Hope this helps! Thanks.

Answer:

C) Exponential

Step-by-step explanation:

If you divide the consecutive y-values, you'll get a consistent result of 2:

16/8 = 2

8/4 = 2

4/2 = 2

2/1 = 2

This type of pattern corresponds to an Exponential Function.