HELP ME PLEASEEEEEEEE

Answer:

the rationalized form of the denominator 1/(5^(1/2)-2) is (x+2)/((x-2)(x-1)(x+1)).

Step-by-step explanation:

Correctly me if im wrong. To rationalize the denominator of the fraction 1/(5^(1/2)-2), we can use the conjugate of the denominator. The conjugate of a+b is a-b, so the conjugate of 5^(1/2)-2 is 5^(1/2)+2. We can then multiply the numerator and denominator of the fraction by the conjugate to obtain:

1/(5^(1/2)-2) * (5^(1/2)+2)/(5^(1/2)+2)

= (1*(5^(1/2)+2)) / ((5^(1/2)-2)*(5^(1/2)+2))

= (5^(1/2)+2) / (5^2 - 2*5^(1/2) - 4)

Notice that we can further simplify this expression by substituting 5^(1/2) with x and expanding the denominator:

(5^(1/2)+2) / (5^2 - 2*5^(1/2) - 4)

= (x+2) / (x^2 - 2x - 4)

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

The denominator of this expression can be further simplified by factoring out x-2, which gives us:

(x+2) / (x-2)(x+2)

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

= (x+2) / (x-2)(x^2 - 2x + 4 - 4)

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

= (x+2) / (x-2)((x-1)(x+1))
Finally, we can use the fact that x-1 and x+1 are factors of x^2-2x, which means that we can factor out x-1 and x+1 from the denominator to obtain the fully simplified expression:
(x+2) / (x-2)(x^2 - 2x)

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

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

Therefore, the rationalized form of the denominator 1/(5^(1/2)-2) is (x+2)/((x-2)(x-1)(x+1)).

Ms. Jones washed most of the laundry and the remaining laundry need to be washed is 7/20.

Converting the fraction to decimal to easily compare the amount of laundry washed.

Laundry washed by Ms. Jones = 2/5

Performing division

Laundry washed by Ms. Jones = 0.4

Laundry washed by her son = 1/4

Performing division

Laundry washed by her son = 0.25

0.4 is greater than 0.25, hence, Ms. Jones washed more laundry.

They washed the laundry in fractions. So, the total laundry can be taken as 1.

Total laundry washed = 0.4 + 0.25

Total laundry washed = 0.65

Remaining laundry = 1 - 0.65

Performing subtraction

Remaining laundry = 0.35

Converting into fraction = 35/100

Remaining laundry in fraction = 7/20

Thus, Ms. Jones washed more laundry and 7/20 is remaining.

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The complete question is -

Ms. Jones washed 2/5 of her laundry. Her son washed 1/4 of it. How much of the laundry still needs to be washed?

Answer:

1. works

2. works

3. does not work

4. does not work

5. does not work because it does not exist

Step-by-step explanation:

if you have room on your paper, drawing a diagram would be super helpful.

I don't know if I'm 100% right so check with other people before submitting

Answer:The answers are A and B (AE =CE, BAE=CDE)

Step-by-step explanation:

Answer:

1, 54, 9, 90

Step-by-step explanation:

3ft=27$, so 1ft=9$. The constant of proportionality is 9 from feet to money so multiply the rest by 9 to get 54, divide backwards to get 9, and then multiply 10 by 9 to get 90.

Answer:

Length : 6 9 10

Cost ($) :54 81 90

Step-by-step explanation:

First, divide 27 by 3 to find the cost of 1 feet fence.

We get the answer 9

Then, to find the length, divide the cost by 9

And to find the cost, multiply the length of fence with 9.

Simple!

(btw I came here for the brainliest especially, so I hope you keep your word:) And hope this helped!)

Answer:

Below

Step-by-step explanation:

10 % OFF means you pay 90% of price

x = original price

Store A :   5% off    means   price is .95x

                    then another 10% off would mean  .9 * (.95x)

                        then another 10% off would mean  .9 * ( .9 *(.95x)

                               this equals .7695 x

Store B 25% off means you pay 75%  

  price is then .75x

price of      .75x at store B is < than .7695 x at store A  

    so B has greater discount

Answer:

Step-by-step explanation: To compare the discounts offered by Store A and Store B, we need to calculate the final price of the item after all discounts have been applied.

For Store A, the successive discounts of 5%, 10%, and 10% can be applied as follows:

The initial price of the item is reduced by 5%, resulting in a price of 0.95 * Price.

The price from step 1 is reduced by an additional 10%, resulting in a price of 0.9 * (0.95 * Price) = 0.855 * Price.

The price from step 2 is reduced by an additional 10%, resulting in a price of 0.9 * (0.855 * Price) = 0.7695 * Price.

For Store B, the single discount of 25% can be applied as follows:

The initial price of the item is reduced by 25%, resulting in a price of 0.75 * Price.

Comparing the final prices of the item at Store A and Store B, we can see that Store B offers a greater discount. The final price of the item at Store A is 0.7695 * Price, while the final price at Store B is 0.75 * Price. Since 0.75 is less than 0.7695, the final price at Store B is lower.

Therefore, Store B offers a greater discount on the item.

A  conditional probability p(b | a) is equal to its marginal probability p(b) if A and B are independent.

The likelihood that any two events will occur is equal to the sum of the probabilities of each event separately, less the probability that the two occurrences will meet. However, if two occurrences are incompatible with one another, then there is a zero probability of the two events intersecting, therefore the likelihood that either one or the other will occur is equal to the sum of the two individual probabilities.

To calculate conditional probability, use the following formula:

p( b | a ) = p( a ∩ b )/ p(a)

It is known that if two events A and B are independent, then p(a ∩ b) = p (a) . p(b)

So, p(b | a) = [p (a) . p(b)]/p(a) = p(b)

Thus, it is concluded that a conditional probability p(b | a) is equal to its marginal probability p(b) if A and B are independent.

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Answer:

8

Step-by-step explanation:

Based on the given conditions, formulate: 32 / 4 Cross out the common factor

The point-slope form with a slope of 5/2 and a point of (4,-7) is 5x-2y=34.

What is line equation?

In its most basic form, an equation is a mathematical statement that indicates that two mathematical expressions are equal. 3x + 5 = 14, for example, is an equation in which 3x + 5 and 14 are two expressions separated by a 'equal' sign. A mathematical phrase with two equal sides separated by an equal sign is called an equation. An example of an equation is 4 + 6 = 10. Linear equations are classified into three types: point-slope, standard, and slope-intercept.

Here,

The slope of line perpendicular to the line y +6=-2/5(x-1)

m1=5/2

point=(4,-7)

y-y1=m(x-x1)

y+7=5/2(x-4)

2y+14=5x-20

5x-2y=34

The point-slope form for slope given as 5/2 and point as (4,-7) will be 5x-2y=34.

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The solutions for the number of pizzas p and hot dogs h is

a) A ( p , h ) = A ( 0 , 20 )

b) B ( p , h ) = B ( 3 , 15 )

c) C ( p , h ) = C ( 6 , 10 )

d) D ( p , h ) = D ( 9 , 5 )

e) E ( p, h ) = E ( 12 , 0 )

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of A is

Let the number of pizza be = p

Let the number of hot dog = h

The cost of one pizza be = $ 2.50

The cost of one hot dog = $ 1.50

Now , the total amount with Melanie = $ 30

So , the equation will be

2.50p + 1.50h = 30

On simplifying the equation , we get

2.5p + 1.5h = 30   be equation (1)

Multiply equation (1) by 10 , we get

25p + 15h = 300

Now , the values of p and h which will satisfy the equation is

a)

Let p = 0 , h = 20

The equation is 25p + 15h = 300

Substitute the value of p and h , we get

25 ( 0 ) + 15 ( 20 ) = 300

300 = 300

So , the point A ( 0 , 20 ) satisfies the equation

b)

Let p = 3 , h = 15

The equation is 25p + 15h = 300

Substitute the value of p and h , we get

25 ( 3 ) + 15 ( 15 ) = 300

75 + 225 = 300

300 = 300

So , the point B ( 3 , 15 ) satisfies the equation

c)

Let p = 6 , h = 10

The equation is 25p + 15h = 300

Substitute the value of p and h , we get

25 ( 6 ) + 15 ( 10 ) = 300

150 + 150 = 300

300 = 300

So , the point C ( 6 , 15 ) satisfies the equation

d)

Let p = 9 , h = 5

The equation is 25p + 15h = 300

Substitute the value of p and h , we get

25 ( 9 ) + 15 ( 5 ) = 300

225 + 75 = 300

300 = 300

So , the point D ( 9 , 5 ) satisfies the equation

e)

Let p = 12 , h = 0

The equation is 25p + 15h = 300

Substitute the value of p and h , we get

25 ( 12 ) + 15 ( 0 ) = 300

300 = 300

So , the point E ( 12 , 0 ) satisfies the equation

Hence , The solutions for the number of pizzas p and hot dogs h is

a) A ( p , h ) = A ( 0 , 20 )

b) B ( p , h ) = B ( 3 , 15 )

c) C ( p , h ) = C ( 6 , 10 )

d) D ( p , h ) = D ( 9 , 5 )

e) E ( p, h ) = E ( 12 , 0 )

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The value of expression in terms of y is y = (v-j-82)/62

Numbers, symbols and operators (such as and times) grouped together that show the value of something.

Given that an expression v-(j+y)=61y+82

Solving for y,

v-(j+y)=61y+82

v-j-y = 61y+82

v-j-82 = 61y+y

v-j=92 = 62y

y = (v-j-82)/62

Hence, The value of expression in terms of y is y = (v-j-82)/62

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Answer:

No solution

Step-by-step explanation:

There is no real value of [tex]x[/tex] you can substitute into this equation to make it true.

The vertical angles are congruent, then the two lines cut by a transversal are parallel is False.

Option B is the correct answer.

The angles that are in the same position on two parallel lines intersected by a transversal line on the parallel lines.

Corresponding angles are equal.

We have,

Vertical angles are congruent.

Vertical angles are pairs of opposite angles made by intersecting lines.

Thus,

For vertical lines to be congruent, we do not need two parallel lines.

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Option D is correct the answer. The average rate of change over the interval 1 < x < 5 is greater than the average rate of change over the same interval for the function g(x) = 1. 8x2 is k(x) = 2x^2

The average rate of change:

Given a function y, the average rate of change S of y=f(x)  in an interval (xs,xf) will be given by the following equation:

[tex]S=\frac{f(xf)-f(xo)}{xf-xo}[/tex]

In this problem, we have that:

Interval (1,5), so xf=5,xo=1

Then

[tex]S=\frac{f(5)-f(1)}{4}[/tex]

All options are compared to g(x).

[tex]g(x)=1.8x^{2}[/tex]

g(5) = 1.8*(5)^2 = 45

g(1) = 1.8*(1)^2 = 1.8

[tex]S=\frac{45-1.8}{4} =10.8[/tex]

A.=f(x) = x^2

f(5) = 5^2 = 25

f(1) = 1^2 = 1

[tex]S=\frac{25-1}{4} =6.25[/tex]

Smaller than 10.8, so this is not the answer.

B.=g(x) = 1.2x^2

g(5) = 1.2*(5)^2 = 30

g(1) = 1.2*(1)^2 = 1.2

[tex]S=\frac{30-1.2}{4} =7.2[/tex]

Smaller than 10.8, so this is not the answer.

C.=h(x) = 1.5x^2

h(5) = 1.5*(5)^2 = 37.5

h(1) = 1.5*(1)^2 = 1.5

[tex]S=\frac{37.5-1.5}{4}= 9[/tex]

Smaller than 10.8, so this is not the answer.

D.=k(x) = 2x^2

k(5) = 2*(5)^2 = 50

k(1) = 2*(1)^2 = 2

[tex]S=\frac{50-2}{4} =12[/tex]

Greater than 10.8, this is the answer.

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Answer: 0.6 hours

Step-by-step explanation:

      We will set up a proportion to help us solve.

[tex]\displaystyle \frac{1,500\; \;miles}{4.5\;\;hours} =\frac{200\;\;miles}{x\;\;hours}[/tex]

      Next, we will cross-multiply and solve by multiplying and using inverse operations.

1,500 * x = 200 * 4.5

1,500x = 900

x = 0.6 hours

Answer:

Step-by-step explanation:

This has some significance in logic because if two propositions have the same truth table they are in a logical sense equal to each other – and we say that they are logically equivalent. So: ¬p∨(p∧q)≡p→q, or "Not p or (p and q) is equivalent to if p then q."

...

Logically Equivalent Statements.

p q p→q

F F T

The height of the building is 44 meters

From the question, we have the following parameters that can be used in our computation:

Height of the tree = 22 m

From the question, we understand that

Scale of the diagram = 2

This means that

Height of the building = Height of the tree * Scale of the diagram

Substitute the known values in the above equation, so, we have the following representation

Height of the building = 22 m * 2

Evaluate

Height of the building = 44 m

Hence, the height is 44 m

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The length of the mid-segment of the given trapezoid will be 8.5.

A quadrilateral is a geometrical 2d shape in which there are four sides and each side is connected and makes a close polygon.

In other meaning, a quadrilateral is a kind of polygon in which four sides for example rectangle, square, and parallelogram are quadrilateral.

As per the given vertices,

I(-3, -5), J(8, -5), K(3, -9), and L(-3, -9)

The trapezoid has been plotted below.

The length of LK = 3 - (-3) = 6 units.

Length IJ = 8 - (-3) = 11 units

The length of midsegment x = (11 + 6)/2 = 17/2 = 8.5

Hence "The supplied trapezoid's mid-segment will be 8.5 inches long.".

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The coordinates of the point is (17, 7)

From the question, we have the following parameters that can be used in our computation:

Point A = (2, 16)

Point B = (22, 4)

Ratio = 3/4

The ratio can be expressed as

m : n = 3 : 1

The coordinates of the point can be calculated as

Point = 1/(m + n) * (mx2 + nx1, my2 + ny1)

Substitute the known values in the above equation, so, we have the following representation

Point = 1/(3 + 1) * (3 * 22 + 1 * 2, 3 * 4 + 1 * 16)

So, we have

Point = 1/4* (68, 28)

So, we have

Point = (17, 7)

Hence, the point is (17, 7)

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Answer:

-6

Step-by-step explanation:

2+(-8)=-6

After solving the equation, the value of A will be equal to 16 and the value of B will be equal to 28.

What is an arithmetic operation?

The four fundamental operations of arithmetic are addition, subtract, multiply, and division of two or more numbers. Included in them is the study of integers, especially the order of operations, which is important for all other aspects of mathematics, notably algebra, information management, and geometry.

As per the provided data in the question,

The given equation is,

A + B = 44

Given ratio A:B = 4:7

Let the value of A = 4x and value of B = 7x

4x + 7x = 44

11x = 44

x = 4

A = 4x

A = 4(4) = 16

B = 7x

B = 7(4) = 28.

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if f(x) +[tex]x^{2}[/tex]  [tex][ f(x) ]^{5}[/tex]  = 34 and f(1) = 2, then f '(1) = - [tex]\frac{64}{81}[/tex]

f ′(x )'s indicates that it is derived from f (x). The second notation is dydx. The instantaneous rate at which y changes in relation to x is shown by this notation.

f(x) + [tex]x^{2}[/tex]  [tex][ f(x) ]^{5}[/tex]  =  34

differentiate with respect to x :

f' (x) + [tex]x^{2}[/tex] . 5 [tex][ f(x) ]^{4}[/tex] f'(x) +  [tex][ f(x) ]^{5}[/tex]  2x = 0

putting x = 1

f' (1) + [tex]1^{2}[/tex] . 5  [tex]f(1)^{4}[/tex] f'(1) + [tex]f(1)^{5}[/tex] 2(1) = 0

f' (1) + 1.5 [tex](2)^{4}[/tex] f'(1) + [tex](2)^{5}[/tex] . 2 = 0

f' (1) + 80 f' (1) = - 64

81 f' (1) = - 64

f' (1) = - [tex]\frac{64}{81}[/tex]                    

thus , the f ' (1) is found.

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Answer:

22

Step-by-step explanation:

Knowledge Needed

| | (absolute value) = Makes anything inside positive after solving.

A negative number multiplied or divided by another negative number is positive.

Question

Set up the equation

| -(-22) |

| 22 |

Stays positive.

22

The rate of interest for simple compounding if Louis is offered an interest rate of 6.35% for an investment with continuous compounding, is 0.0656 or 6.56%, so option D is correct.

When the loan is given to you, then some amount is charged to you for the principal amount and that is called interest.

Given:

Louis is offered an interest rate of 6.35% for an investment with continuous compounding,

Here, P will be the same, the amount will be the same and the time period will be the same then,

The amount in simple compounding = The amount in continuous compounding

[tex]P(1 + r)^t = Pe^{rt}[/tex]

Here, r is the rate of interest for simple compounding,

[tex]1 + r = e^{0.0635}[/tex]   (All same quantities get canceled)

r = 1.0656 - 1

r = 0.06556

r = 0.0656

r = 6.56%

Thus, the rate of interest for simple compounding is 6.56%.

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Answer:

It would take Sam 29 minutes and 30 seconds

Answer: x=2

Step-by-step explanation:

1/2(40x-16)=32

20x - 8 = 32

Add 8 on both sides

20x = 40

Divided both sides by 20

x = 2

Answer:

10/3

Step-by-step explanation:

6 × 5 ÷ 9 = 30/9

However, you will realize that the numerator (30) and denominator (9) both are multiples of 3. That means we can divide the numerator and denominator by 3 to get an equivalent fraction:

(30 ÷ 3)/(9 ÷ 3) = 10/3

Therefore, the answer is 10/3

The domain and range for the following graph, is written below:

Domain (interval notation) : [-4,4)

Range (interval notation): [1,4)

Domain (inequality notation): -4 ≤ x < 4

Range (inequality notation): 1 ≤ x < 4

The collection of values that can be put into a function's domain are called its parameters. The x values for a function like f(x) are contained in this collection (x). The collection of values that a function can take on is known as its range. Following the putting of the x value, the function outputs this sequence of values.

Utilizing graphs is a useful tool for determining the scope and range of functions. A graph's domain is the entire set of input values shown on the x-axis since the term "domain" refers to the set of potential input values. The various output values are displayed on the y-axis and make up the range.

Domain (interval notation) : [-4,4)

Range (interval notation): [1,4)

Domain (inequality notation): -4 ≤ x < 4

Range (inequality notation): 1 ≤ x < 4

As we know,

Domain is the x-values of a function

Range is the y values of a function

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