why are greek letters used in math and their origin and reasons

Answer:

I think it is A.

Step-by-step explanation:

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{40\% \: }}}}}[/tex]

Step-by-step explanation:

Total number of cupcakes = 500

Total number of mocha flavored cupcakes = 200

To find : percentage of mocha flavored cupcakes sold that day

[tex] \boxed{ \sf{ \frac{total \: number \: of \: mocha \: flavored \: cupcakes}{total \: number \: of \: cupcakes} \times 100 \: \% \: }}[/tex]

[tex] \dashrightarrow{ \sf{ \frac{200}{500} \times 100\%}}[/tex]

[tex] \dashrightarrow{ \sf{40 \: \% \: }}[/tex]

Hope I helped!

Best regards ! :D

Answer:

40% were mocha flavored cupcakes.

Step-by-step explanation:

200/500 = 2/5

2/5 = 40%

Hope it helped you!

Answer:

[tex]-(3.4p-6q+6)[/tex] = [tex]-3.4p+6q-6[/tex]

Step-by-step explanation:

Given

[tex]-(3.4p-6q+6)[/tex]

Required

Simplify

[tex]-(3.4p-6q+6)[/tex]

Rewrite as

[tex]-1(3.4p-6q+6)[/tex]

[tex]-1 * (3.4p-6q+6)[/tex]

Open the bracket

[tex]-3.4p+6q-6[/tex]

Answer: u = 1

36 = 6(1)+30

Step-by-step explanation:

Answer:

1=u

Step-by-step explanation:

36-30=6u+30-30

6=6u

6÷6=6u÷6

1=u

Answer: -8

Explanation: It's a good idea to get into the habit of using parenthses

when substituting numbers in for variables.

Since x = -3 and y = 6, 22 - 3y + 4x is 22 - 3(6) + 4(-3).

3(6) is 18 so we have 22 - 18 + 4(-3).

4(-3) is - 12 so we have 22 - 18 + -12.

Now, 22 - 18 is 4 and 4 + -12 is -8.

Answer:

-8

Step-by-step explanation:

Subsitute the variable "y" with 6 and the variable "x" with -3. Once the variables are replaced with the right numbers, the equation should read 22- 3(6) +4(-3). Using PEMDAS (parentheses, exponents, multiplication, division, addition, subtraction) you should do what's in the parentheses first. -3 times 6 is -18 and 4 times -3 is -12. 22-18-12= -8

Answer:

NONE

Step-by-step explanation:

4Y-4Y-12=14-2

LETS ADD AND SUBTRACT

-12=12

WHICH ISNT TRU!

HOPE I HELPED

PLS MARK BRAINLIEST  

DESPERATELY TRYING TO LEVEL UP

✌ -ZYLYNN JADE ARDENNE

JUST A RANDOM GIRL WANTING TO HELP PEOPLE!

                  PEACE!

Answer:

None

Step-by-step explanation:

The equation states after simplifying that -12 = 12 which is not a true statement.

Answer:

140 ml

Step-by-step explanation:

Let x be the amount of water in Beaker X and y be the amount of water in Beaker Y.

Then we get following equations:

First part

Second part

Substitute x in first equation:

Then finding x:

Initial amount of water in Beaker X is 140 ml, in Beaker Y is 160 ml

Answer:

I believe the area of a square with those vertices is 16 units

Answer:

(14, - 13 )

Step-by-step explanation:

Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is

[ [tex]\frac{1}{2}[/tex] (x₁ + x₂ ), [tex]\frac{1}{2}[/tex] (y₁ + y₂ ) ]

let (x₁, y₁ ) = (- 2, - 7) and (x₂, y₂ ) = (x, y)

Using the midpoint formulae equate to the coordinates of the midpoint.

[tex]\frac{1}{2}[/tex] (- 2 + x) = 6 ( multiply both sides by 2 )

- 2 + x = 12 ( add 2 to each side )

x = 14

and

[tex]\frac{1}{2}[/tex] (- 7 + y ) = - 10 ( multiply both sides by 2 )

- 7 + y = - 20 ( add 7 to both sides )

y = - 13

Thus

coordinates of other endpoint = (14, - 13 )

Answer:

2(29D-28adn-29)

Step-by-step explanation:

Answer:

5,6

Step-by-step explanation:

Answer:

Step-by-step explanation:

First of all multiply through by 7

We have

Expand the terms in the bracket

That's

Add 16x to both sides

That's

Divide both sides by 30

We have the final answer as

Hope this helps you

Answer:

-7

Step-by-step explanation:

So we have the two functions:

[tex]f(x)=2x+7\text{ and } g(x)=-3x+5[/tex]

And we want to find f(g(4)).

So, find g(4) first:

[tex]g(x)=-3x+5\\g(4)=-3(4)+5[/tex]

Multiply:

[tex]g(4)=-12+5[/tex]

Add:

[tex]g(4)=-7[/tex]

Now, substitute:

[tex]f(g(4))=f(-7)[/tex]

Use the equation from f(x):

[tex]f(x)=2x+7\\f(-7)=2(-7)+7[/tex]

Multiply:

[tex]f(-7)=-14+7[/tex]

Add:

[tex]f(-7)=-7[/tex]

So:

[tex]f(-7)=f(g(4))=-7[/tex]

And that's our answer :)

Answer: $18.76

Step-by-step explanation:

Let original cost of meal =x

According to question,

x+20%=18.96

x=18.96-20%

x=$18.76

Answer:

original cost of meal  = $15.80

Step-by-step explanation:

120% = $18.96 (divide both sides by 120)

1% = $0.158  (multiply both sides by 100)

100% = $15.80

hope this helps...

Answer:

4.8 in, 3.125 mi

Step-by-step explanation:

This situation models direct proportionality, hence, if one variable increases, the other goes increases as well and vice versa. In this case, the variables are inches and miles.

Part A: Since you multiply 60/25 by 25 to get 60 miles, we know that the value in inches will be 2 * 60/25 = 4.8 inches.

Part B: Since you divide 2 by 8 to get 1/4 inches, we know that the value in miles will be 25 / 8 = 3.125 miles.

Answer:

26 m and 20 m

Step-by-step explanation:

Let the length of the room be l, the breadth be b and perimeter be P.

Given:

Since P = 2(l + b), P/2 = l +b, we have following equations:

Substituting l in first equation:

Then the length is:

Answer:

11 + 5[tex]\sqrt{5}[/tex]

Step-by-step explanation:

Note that [tex]\sqrt{5}[/tex] × [tex]\sqrt{5}[/tex] = 5

Given

(3 + [tex]\sqrt{5}[/tex] )(2 + [tex]\sqrt{5}[/tex] )

Each term in the second factor is multiplied by each term in the first factor, that is

3(2 + [tex]\sqrt{5}[/tex] ) + [tex]\sqrt{5}[/tex](2 + [tex]\sqrt{5}[/tex] ) ← distribute both parenthesis

= 6 + 3[tex]\sqrt{5}[/tex] + 2[tex]\sqrt{5}[/tex] + 5 ← collect like terms

= 11 + 5[tex]\sqrt{5}[/tex] ← in the form a + b[tex]\sqrt{5}[/tex]

with a = 11 and b = 5

Use the remainder theorem, which says the remainder upon dividing a polynomial [tex]p(x)[/tex] by [tex]x-c[/tex] is exactly [tex]p(c)[/tex]. In this case,

[tex]p(x)=2x^2+2x+1[/tex]

[tex]c=-1[/tex]

[tex]\implies p(c)=2(-1)^2+2(-1)+1=\boxed{1}[/tex]

Answer:

-3 is a rational integer.

Step-by-step explanation:

An integer is a superset of the whole numbers that includes the negated values as well as 0.

A rational number is simply anything that can be expressed as a fraction.

-3 is by these definitions, a negated 3, and any non fractional number can be expressed as a fraction.

-3 is not a natural number, as that is the set of numbers {1, 2, 3, 4, 5, ... etc} and -3 is not a whole number, as that is the set of numbers {0, 1, 2, 3, 4, ... etc}.

And -3 is also not an irrational number since it can be expressed as a fraction.

Thus, -3 is a rational integer.

Cheers.

Answer:

Your answer would be D, the equation is a function because it is a polynomial and all polynomials are functions.

Step-by-step explanation:

I like to remember that polynomials have no negative , fraction exponents and no division. In this case everything is positive so I knew it was a polynomial , and like the answer says all polynomials are functions !

Hope this helped

Answer:

I guess the answer is going to be 9/5

Answer:

285.28571429 minutes

Step-by-step explanation:

Let us represent

The number of minutes you talk = t

C1 = Cost in dollars of the first plan

C2 = Cost in dollars of the second plan

First plan

The first plan charges a rate of 26 cents per minute

Converting cents to dollars

100 cents = 1 dollars

26 cents =

26/100 cents

=$ 0.26

C1 = $0.26 × t

C1 = 0.26t .......... Equation 1

Second Plan

The second plan charges a monthly fee of $39.95 plus 12 cents per minute

Converting 12 cents to dollars

100 cents = 1 dollars

12 cents =

12/100

= $0.12

C2 = $39.95 + 0.12t........Equation 2

Find the number of talk minutes that would produce the same cost for both plans

We would Equate C1 to C2

C1 = C2

0.26t = $39.95 + 0.12t

Collect like terms

0.26t - 0.12t = $39.95

= 0.14t = $39.95

Divide both sides by 0.14

= t = $34.95/0.14

t = 285.28571429 minutes

Therefore, the number of talk minutes that would produce the same cost for both plans is 285.28571429 minutes.

Answer: kindly check explanation

Step-by-step explanation:

As a consumer, a number of factors play a number of factors play a major role and guides my purchasing decision. These factors include :

Employment : Being employed or self employed and being unemployed definitely plays a role in one's income level. An unemployed individual may tend to be more conservative when deciding on what or what not to purchase.

Income : Employment has grades which could be defined based on income level of workers, individuals with higher wages or salaries will tend to boast more financial strength than those with meager income.

Prices : Cost of items may be used to interpret quality product in some cases, hence some individuals may be put off by high cost associated to a product while some may be attracted to them.

Interest rate: Interest rates are often unstable and as such may guide an individual's investment plan, by holding on when interest falls and financing when it rises.

Consumer confidence : The contentment individuals derive from using a product may be nurtured through previous experience and hence either builds consumer confidence in a certain brand or a loss or decline in confidence over such product.

Answer:

(10, -20)

Step-by-step explanation:

i took the test plz put me as brainist