On Tuesday, a radio store reduces all its Monday prices by 20%. On Wednesday, by what percent
must the store reduce the Tuesday prices such that each radio costs half its Monday price?

Answer:

see explanation

Step-by-step explanation:

This is not a prime polynomial as it can be factored into polynomials of lower degree.

Given

x³ + 3x² - 2x - 6 ( factor the first/second and third/fourth terms )

= x²(x + 3) - 2(x + 3) ← factor out (x + 3) from each term

= (x + 3)(x² - 2) ←can be reduced further as a difference of squares

= (x + 3)(x - [tex]\sqrt{2}[/tex] )(x + [tex]\sqrt{2}[/tex] )

Answer:

x=12

Step-by-step explanation:

1/2x + 3 = 2/3x + 1

Subtract 1 from each side

1/2x + 3-1 = 2/3x + 1-1

1/2x +2 = 2/3 x

Subtract 1/2 x from each side

1/2x -1/2x+ 2 = 2/3x -1/2x

2 = 2/3x -1/2x

Get a common denominator of 6  2/3 = 4/6   and 1/2 = 3/6

2 = 4/6x - 3/6x

2 = 1/6 x

Multiply each side by 6 to isolate x

2*6 = 1/6x *6

12 =x

Answer:

x=12

Step-by-step explanation:

Answer:

Both are correct

Step-by-step explanation:

The Line has the following equation: y= 1+4/5 x

So we need to know which points: (-5,-3) and (10,9), (-10,-7). (-15, -11) are part of the line

For instances, lest start by evaluating (-15,-11) in y=1+4/5 x

this leaves us to the following operation: -11=1+4/5 * (-15)

-11=1-4*3 resulting in a equality -11=-11, this point does belong to the line

Repeat the above for all of the remaining points and you will get the same conclusion, that is we Vladimir and Robyn are correct.

Answer:

number 2

Step-by-step explanation:

Total number of riders that ride on carpool daily = 2000

Total Cost of one way ticket = $ 5.00

Total Amount earned if 2000 passengers rides daily on carpool = 2000 × 5

                                                                                                            = $10,000

If fare increases by $ 1.00

New fare = $5 + $1    

               = $6

Number of passengers riding on carpool = 2,000 - 100 = 1,900

If 1,900 passengers rides on carpool daily , total amount earned ,if cost of each ticket is $ 6 = 1900 × $6 = $11400

As we have to find the inequality which represents the values of x that would allow the carpool service to have revenue of at least $12,000.

For $ 1 increase in fare = (2,000 - 1 × 100) passengers

For $ x increase in fare, number of passengers = 2,000 - 100·x

                                                         = (2,000 - 100·x) passengers

New fare = 5 + x

New Fare × Final Number of passengers ≥ 12,000

(5+x)·(2,000 - 100 x) ≥ 12,000

5 (2,000 - 100 x) + x(2,000 - 100 x) ≥ 12,000

10,000 - 500 x + 2,000 x - 100 x² ≥ 12,000

100 - 5 x + 20 x - x² ≥ 120

- x² + 15 x +100 - 120 ≥ 0

-x² + 15 x -20 ≥ 0

x² - 15 x + 20 ≤ 0

⇒ x = 1.495

x ≥ $ 1.495, that is if we increase the fare by this amount or more than this the revenue will be at least 12,000 or more .

Also, f'(x) = 0 gives x = 7.5

⇒ The price of a one-way ticket that will maximize revenue is $7.50

Answer:

1. University of Wisconsin–Madison

2. New York University

3. Purdue University

4. Texas A&M University

5. Auburn University

6. University of California, Davis

7. College of Charleston

Step-by-step explanation:

These schools don't require you to live on campus.

Some colleges, such as community colleges and online universities, do not require on-campus housing, offering students the flexibility of living off-campus or at home while studying.

Colleges that do not require on-campus housing:

Some colleges that typically do not require on-campus housing include community colleges and online universities.

Community colleges often allow students to live at home to keep costs down, catering to both young people and adults who prefer living at home while studying.

Online universities provide education entirely through online platforms, allowing students to study from their own locations without the need for on-campus housing.

Answer:

O C. (f – g)(x) = -3x^2 - x - 4

Step-by-step explanation:

I will assume that f(x) is -4x^2- 6x - 1

f(x) = -4x^2 - 6x - 1

g(x) = -x2 - 5x + 3

(f - g)(x)= -4x^2 - 6x - 1  - (-x2 - 5x + 3)

Distribute the minus sign

(f - g)(x)= -4x^2 - 6x - 1  +x2 + 5x - 3

Combine like terms

(f - g)(x)= -3x^2 - 1x - 4  

Answer:

The other number is 2 if the given number is 15.

Step-by-step explanation:

One of the numbers is 15, correct?

Let the other number be x.

15 × x = 30

x = 30/15

x = 2.

Let's check:

15 × 2 = 30.

30 = 30.

Correct!

The other number whose product with 15 yields 30 is; 2.

According to the question;

Let the other number be X.

As such; the product of x and 15 is 30.

Therefore;

Therefore, The other number whose product with 15 yields 30 is; 2.

Read more:

https://brainly.com/question/18589599

Answer:

x=-1

Step-by-step explanation:

3+2x=5+4x

Subtract 2x from each side

3+2x-2x=5+4x-2x

3 = 5x+2x

Subtract  5 from each side

3-5 =5-5+2x

-2 =2x

Divide each side by 2

-2/2 = 2x/2

-1 =x

Answer:

x = 28

Step-by-step explanation:

Given

[tex]\frac{14}{x}[/tex] = [tex]\frac{1}{2}[/tex] ( cross- multiply )

x = 14 × 2 = 28

Answer:

x = 7

Step-by-step explanation:

14 / x = 1 / 2

14 / x = 0.5

14 = x(0.5)

14 / 0.5 = x

7 = x

Hope this helps!

Answer: C

Step-by-step explanation

I got 100% on edge

Answer:

B x^2 + 5x − 4 = 0

Step-by-step explanation:

PLATO

Answer:

Option a. 204 degree

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The semi-inscribed angle is half that of the arc it comprises.

so

∠B=(1/2)[arc BC]

substitute

78°=(1/2)[arc BC]

arc BC=156°

Remember that

arc BC+arc BCD=360°

arc BCD=360°-156°=204°

Answer:

When the hot tub is half full, there are 400 gallons of water in it.

Step-by-step explanation:

If 75% or 3/4 of the hot tub is 600 gallons and you need to find 50% or 1/2. Divide 600 by 3 to get 200 then simply multiply by 2 to get 400.

When the hot tub is half full, it would contain 400 gallons of water.

To find out how many gallons are in the hot tub when it's half full, calculate the total capacity of the hot tub using the information that 75% equals 600 gallons. Then, take 50% of that total capacity to find that when the hot tub is half full, it contains 400 gallons.

If a hot tub is 75 percent full with 600 gallons of water, that means the hot tub's total capacity when it's 100% full is larger than 600 gallons. To find out how many gallons are in the hot tub when it's half full, we must first determine the hot tub's total capacity. We can set up a proportion to find the total capacity (T) since 75% of T is 600 gallons.

75% of T = 600 gallons

0.75  imes T = 600 gallons

Now, to find the total capacity (T), divide both sides by 0.75:

T = 600 gallons / 0.75

T = 800 gallons

So, the hot tub's total capacity is 800 gallons. To find the amount of water when the hot tub is half full, simply take 50% of the total capacity:

50% of 800 gallons = 0.5  imes 800 gallons

50% of 800 gallons = 400 gallons

Therefore, when the hot tub is half full, it would contain 400 gallons of water.

Answer:

x = 45

Step-by-step explanation:

10+2x=100

Subtract 10 from each side

10-10+2x=100-10

2x = 90

Divide each side by 2

2x/2 =90/2

x = 45

Answer:

x=45

Step-by-step explanation:

First, subtract 10 from both sides of the equation.

10+2x-10=100-10

100-10=90

Next, divide 2 from both sides of the equation.

2x=90

2x/2=90/2

Finally, solve this problem.

90/2=45

x=45, which is our answer.

Answer:

π

Step-by-step explanation:

recall that for a cotangent function

f(x) = cot (bx) + k

the period is simply π / | b |

in our case b = 1, hence | b | = 1

therefore the period is simply π / 1 = π

Answer:

The other coordinate for the given equation is 34.

Step-by-step explanation:

We are given the following equation and we are to fin the value of the y coordinate given that the value of the x coordinate is [tex] 8 [/tex]:

[tex] y = \frac { 7 } { 2 x + 6 } [/tex]

Substituting the given value of x in the above equation to find y:

[tex]y = \frac { 7 } { 2 } ( 8 ) + 6 [/tex]

y = 34

(8, 34)

Answer:

C.

Step-by-step explanation:

Ok I'm going to make a right triangle by drawing a straight edged line segment from the top left vertex straight down.

We can now find the height of the parallelogram.

sin(60)=h/6  (opp/hyp)

Multiply both sides by 6.

6 sin(60)=h

6*sqrt(3)/2 =h

3*sqrt(3)=h

So to find the area of the parallelogram you do base*height, so you have 8*3*sqrt(3) which simplifies to 24sqrt(3).

Answer:

x = 2

Step-by-step explanation:

From my understanding, this question is

2x² - 4x = 0

Step 1: Take x as common

2x² - 4x = 0

x(2x - 4) = 0

2x - 4 = 0/x

2x - 4 = 0

Step 2: Solve to find x

2x - 4 = 0

2x = 4

x = 4/2

x = 2

Therefore, the value of x after solving is x = 2

!!

Answer:

[tex]x = 0[/tex] and [tex]x = 2[/tex]

Step-by-step explanation:

We have the following quadratic equation

[tex]2x^2 - 4x = 0[/tex]

Take 2x as a common factor

[tex]2x(x - 2) = 0[/tex]

Note that equality is met when either factor equals zero.

That is to say:

[tex]2x = 0[/tex]   →   [tex]x = 0[/tex]

[tex](x-2) = 0[/tex]   →   [tex]x = 2[/tex]

Finally the solutions of the equation are:

[tex]x = 0[/tex] and [tex]x = 2[/tex]

Answer:

a -1.8

Step-by-step explanation:

f(x)=y=0

when y = 0, x=-1.8

Answer:

A. [tex]-1.8[/tex]

Step-by-step explanation:

We have been graph of a function. We are asked to find the value of x, when [tex]f(x)=0[/tex].

We know that [tex]f(x)=0[/tex] stands for x-intercept. [tex]f(x)[/tex] stands for value of y. We know that y is zero on x-axis.

Upon looking at our given graph, we can see that our function has only one x-intercept that is at point [tex](-1.8,0)[/tex].

This means that [tex]f(-1.8)=0[/tex], therefore, the value of x is [tex]-1.8[/tex] and option A is the correct choice.

Answer:

[tex]\large\boxed{B.\ x=1,\ C.\ x=-\dfrac{5}{3}}[/tex]

Step-by-step explanation:

[tex]2x-5=-3x^2\qquad\text{add}\ 3x^2\ \text{to both sides}\\\\3x^2+2x-5=0\\\\3x^2+5x-3x-5=0\\\\x(3x+5)-1(3x+5)=0\\\\(3x+5)(x-1)=0\iff3x+5=0\ \vee\ x-1=0\\\\3x+5=0\qquad\text{subtract 5 from both sides}\\3x=-5\qquad\text{divide both sides by 3}\\x=-\dfrac{5}{3}\\\\x-1=0\qquad\text{add 1 to both sides}\\x=1[/tex]

Answer:

2  remainder 3.

Step-by-step explanation:

Well 2 * 41 = 82 so the quotient is 2 and the remainder is 85-82 = 3.

41 ) 85 ( 2

  -  82

        3.

[tex]\huge{\boxed{2,\ remainder\ 3}}[/tex]

First, find how many times [tex]41[/tex] can fit into [tex]85[/tex].

[tex]41*1=41[/tex]

[tex]41*2=82[/tex]

[tex]41*3=123[/tex] is greater than [tex]85[/tex], so we need to go back down to [tex]41*2=82[/tex].

Now, subtract [tex]85-82[/tex] to get a remainder of [tex]3[/tex].

Answer:

5

Step-by-step explanation:

The triangles have a 2:3 ratio given by the heights of the triangles. We can assume the sides of the triangles must always form a 2:3 ratio with the sides. 5:7.5 forms 2:3 ratio if you divide 5/7.5. This equals .67, just as 2/3 does.

Answer:

  D  All Of Above

Step-by-step explanation:

Any number that is the ratio of two integers, a repeating decimal fraction, or a value you can write completely without using symbols such as π or √2 is a rational number. All the numbers shown are complete in a finite number of digits, so are rational.

All the provided options (-9, 5/8, and 0) are rational numbers because they can all be expressed as a ratio of two integers or as whole numbers. Hence, the correct answer is 'All of the Above.'

A rational number is one that can be expressed as the ratio of two integers (where the denominator is not zero) or as a whole number. Therefore, -9 (which is a whole number), 5/8 (which is a fraction with both numerator and denominator as integers), and 0 (which can be expressed as 0/1) are all rational numbers. Thus, All of the Above are rational numbers.

Answer:

x=2x+6 is the equation that to solve for the smallest.

The three numbers are -6, -4 , and -2.

Step-by-step explanation:

Let x be the smallest of three consecutive even integers.

The next even integer would then have to be x+2 (because x+1 is odd if x is even).

The third one in this sequence would have to be x+4 (because x+3 is odd if x is even).

We are given the first of these numbers equals the sum of the second and third.

So we have x=(x+2)+(x+4).

Combine like terms on right hand side:

x=x+x+2+4

Simplify the combining:

x=2x+6

Subtract 2x on both sides:

x-2x=6

Simplify left hand side:

-x=6

Multiply both sides by -1:

x=-6

If x=-6,  then the three mentioned numbers are:

x=-6

x+2=-6+2=-4

x+4=-6+4=-2

The three numbers are -6, -4 , and -2.

The area of the rectangle is 4 x 16 = 64 square units.

Because the sides of a square are all the same, to find the length of the side, take the square root of the area:

Side length = √64

Side = 8

Answer:

[tex]\large\boxed{D.\ \dfrac{-4x+9}{2x(x-2)}}[/tex]

Step-by-step explanation:

[tex]\dfrac{1}{2x^2-4x}-\dfrac{2}{x}=\dfrac{1}{2x(x-2)}-\dfrac{2}{x}=\dfrac{1}{2x(x-2)}-\dfrac{(2)(2)(x-2)}{2x(x-2)}\\\\=\dfrac{1-4(x-2)}{2x(x-2)}\qquad\text{use the distributive property}\\\\=\dfrac{1-4x+8}{2x(x-2)}=\dfrac{-4x+9}{2x(x-2)}[/tex]

Answer:

The correct option is D.

Step-by-step explanation:

Consider the provided expression.

[tex]\frac{1}{2x^2-4x}-\frac{2}{x}[/tex]

Now take the LCM of the denominator and solve the above expression as shown:

[tex]\frac{x-2(2x^2-4x)}{x(2x^2-4x)}[/tex]

[tex]\frac{x-4x^2+8x}{x(2x^2-4x)}[/tex]

[tex]\frac{9x-4x^2}{x(2x^2-4x)}[/tex]

Cancel out the x as it is common in numerator and denominator.

[tex]\frac{9-4x}{2x^2-4x}[/tex]

[tex]\frac{-4x+9}{2x(x-2)}[/tex]

Hence, the correct option is D.

Answer:

tan²x + 1 = sec²x is identity

Step-by-step explanation:

* Lets explain how to find this identity

∵ sin²x + cos²x = 1 ⇒ identity

- Divide both sides by cos²x

∵ sin x ÷ cos x = tan x

∴ sin²x ÷ cos²x = tan²x

- Lets find the second term

∵ cos²x ÷ cos²x = 1

- Remember that the inverse of cos x is sec x

∵ sec x = 1/cos x

∴ sec²x = 1/cos²x

- Lets write the equation

∴ tan²x + 1 = 1/cos²x

∵ 1/cos²x = sec²x

∴ than²x + 1 = sec²x

- So we use the first identity sin²x + cos²x = 1 to prove that

 tan²x + 1 = sec²x

∴ tan²x + 1 = sec²x is identity

Answer:

true

Step-by-step explanation:

vertical angles are congruent

Answer:

A) h(x)=9x-13

Step-by-step explanation:

f(x) = 2x - 1  

g(x) = 7x -12

Add them together

f(x) = 2x - 1  

g(x) = 7x -12

-------------------------

f(x)+g(x) = 9x-13

h(x) = 9x-13

Answer:

A

Step-by-step explanation:

I took the test

Answer:

c. 4

Step-by-step explanation:

To find the inverse of a number, x, then you end up getting -x.

x = -4

- ( -4 ) = 4

For this case we must find the inverse of the following number:

-4

By definition we have that the inverse of a number multiplied by the number gives us 1 as a result.

Let "x" be the inverse of -4, then:

[tex]x (-4) = 1\\-4x = 1\\x = - \frac {1} {4}[/tex]

So, the inverse of -4 is[tex]- \frac {1} {4}[/tex]

Answer:

[tex]- \frac {1} {4}[/tex]