rectangle r was dilated to form rectangle r what is the scale factor for the dilation

Answer:

see explanation

Step-by-step explanation:

To find the x- intercepts set y = 0, that is

- 2x² - 9x + 5 = 0

To factorise the quadratic consider the factors of the product of the coefficient of the x² term and the constant term that sum to give the coefficient of the x- term.

product = - 2 × 5 = - 10 and sum = - 9

The factors are - 10 and + 1

Use these factors to split the middle term

- 2x² - 10x + x + 5 = 0 ( factor the first/second and third/fourth terms )

- 2x(x + 5) + 1(x + 5) ( factor out (x + 5) )

(x + 5)(- 2x + 1) = 0

equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

- 2x + 1 = 0 ⇒ x = [tex]\frac{1}{2}[/tex]

x-intercepts are x = - 5 and x = [tex]\frac{1}{2}[/tex]

Answer:

What drop down menues??????????????????????

Step-by-step explanation:

Answer:

options?

Step-by-step explanation:

Answer:

327 FOR A FACTTTTT

Step-by-step explanation:

Answer:

the answer would be 327

Step-by-step explanation:

hope this helps :)

Answer: the two numbers is 35 and 18

Step-by-step explanation: 35+18=53 35-18=17

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Final answer:

The two numbers are 35 and 18. We found these by solving the simultaneous equations x + y = 53 and x - y = 17, representing their sum and difference.

Explanation:

Finding Two Numbers Given Their Sum and Difference

Let's denote the two unknown numbers as x and y. According to the conditions given:

x + y = 53 (Equation 1: The sum of the two numbers)

x - y = 17 (Equation 2: The difference of the two numbers)

We can solve these two simultaneous equations to find the values of x and y.

Add the two equations:

(x + y) + (x - y) = 53 + 17

2x = 70

x = 35

Substitute x in Equation 1:

35 + y = 53

y = 53 - 35

y = 18

Therefore, the two numbers are 35 and 18.

Answer:

the area of this trapezoid= 81 square inches

Step-by-step explanation:

To find area of trapezoid , we use formula

[tex]Area = \frac{a+b}{2} * h[/tex]

Where a,b are the base of the trapezoid

h is the height of the trapezoid

Here a= 3 in

b = 15 in

h = 9 in

Plug in all the values in the formula

[tex]Area = \frac{a+b}{2} * h[/tex]

[tex]Area = \frac{3+15}{2} * 9[/tex]

[tex]Area = \frac{18}{2} * 9[/tex]

Area = 9 * 9 = 81

the area of this trapezoid= 81 square inches

Answer:think as it as coordinates on a graph. Time=x Amount=y. So if the time is 0 and the amount is 60 you would graph a point on (0,60)

Step-by-step explanation:

Answer:

Car D will have a different measurement because the 60.35 would round up to be 60.31 where all the other would round down and remain at 60.30

Step-by-step explanation:

Answer:

The equation of this line would be 4x + y = 13

Step-by-step explanation:

In order to find this equation we must first find the slope of the original line. To do this, we solve the original equation for y.

4x + y - 2 = 0

4x + y = 2

y = -4x + 2

The original slope (the coefficient of x) is -4, which means the new slope will also be -4 because parallel lines have the same slope. Now, we can use this slope along with the point in point-slope form to find the equation of the line. Just plug in the numbers and solve for the coefficient.

y - y1 = m(x - x1)

y + 3 = -4(x - 4)

y + 3 = -4x + 16

4x + y + 3 = 16

4x + y = 13

The point-slope form:

[tex]y-y_1=m(x-x_1)[/tex]

m - slope

The formula of a slope:

[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

We have the points (3, 0) and (6, -3). Substitute:

[tex]m=\dfrac{-3-0}{6-3}=\dfrac{-3}{3}=-1[/tex]

The point-slope form:

[tex]y-(-3)=-1(x-6)\\\\\boxed{y+3=-(x-6)}[/tex]

or

[tex]y-0=-1(x-3)\\\\\boxed{y=-(x-3)}[/tex]

The slope-intercept form:

[tex]y=mx+b[/tex]

m - slope

b - y-intercept

From the second point-slope form we have slope-intercept form:

[tex]y=-(x-3)\\\\y=-x-(-3)\\\\\boxed{y=-x+3}[/tex]

Answer:

The mystery number is -3

Step-by-step explanation:

five more then -8 times a number is 29.

-8n +5 = 29

Subtract 5 from both sides

-8n +5-5 = 29-5

-8n = 24

Divide by -8 on each side

-8n/-8 = 24/-8

n= -3

The mystery number is -3

The mystery number in the equation is -3, determined by solving the algebraic equation 5 + (-8 × n) = 29.

The equation given in the problem statement translates to the mathematical expression 5 + (-8 × n) = 29, where n is the mystery number. To find the value of n, we can perform the following steps:

Subtract 5 from both sides to get -8n = 24.

Divide both sides by -8 to isolate n, giving us n = 24 / -8.

Calculate the result to find that n = -3.

Therefore, the mystery number is -3.

Answer:

A. y = -(-x) +7 = x + 7

D. y = 0.05x + 10

Answer:

144

Step-by-step explanation:

4 x 4 x 4 = 64

100/5 = 20

20 x 4= 80

80 + 64 =144

Answer:

100 /( 5 x 4 + 4³) = 1 4/21  

100 / 5 x 4 + 4³ = 144

Step-by-step explanation:

100 /( 5 x 4 + 4³)

PEMDAS tells us to do what is inside the parenthses

We will do the power in side the parentheses first  4^3 = 64

100 /( 5 x 4 + 64)

Now we will multiply

100/(20+64)

Now we add inside the parentheses

100/84

Divide the top and bottom by 4

25/21

Changing from an improper fraction to a mixed number

1 4/21

OR  

100 / 5 x 4 + 4³

If the quantity is not in parentheses

We will do the power  first  4^3 = 64

100 / 5 x 4 + 64

Then we do the multiplication and division from left to right

20 *4+64

80+64

144

If the points P (7, 12), Q (-3, -12) and R (14, 5) lie on a circle with the center C (0, 2), then the distance OP, OQ and OR are the same.

The formula of a distance between two points:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Substitute:

[tex]OP=\sqrt{(2-7)^2+(0-12)^2}=\sqrt{(-5)^2+(-12)^2}=\sqrt{25+144}=\sqrt{169}\\\\\boxed{OP=13}\\\\OQ=\sqrt{(2-(-3))^2+(0-(-12))^2}=\sqrt{5^2+12^2}=\sqrt{25+144}=\sqrt{169}\\\\\boxed{OQ=13}\\\\OR=\sqrt{(2-14)^2+(0-5)^2}=\sqrt{(-12)^2+(-5)^2}=\sqrt{144+25}=\sqrt{169}\\\\\boxed{OR=13}[/tex]

OP = OQ = OR, therefore the points P, Q and R lie on one circle.

Answer:

53028.064 I think

Step-by-step explanation:

The point-slope form:

[tex]y-y_1=m(x-x_1)[/tex]

m - slope

We have the line

[tex]y-3=-\dfrac{1}{5}(x+2)\to m=-\dfrac{1}{5}[/tex]

If m₁ and m₂ are the slopes of the perpendicular lines, then

[tex]m_1m_2=-1\to m_2=-\dfrac{1}{m_1}[/tex]

Therefore the slope of ouer line is

[tex]m=-\dfrac{1}{-\frac{1}{5}}=5[/tex]

We have the point (-2, 7). Put the coordinates to the equation of a line in the point-slope form:

[tex]y-7=5(x-(-2))[/tex]

[tex]y-7=5(x+2)[/tex]      use the distributive property

[tex]y-7=(5)(x)+(5)(2)[/tex]

[tex]y-7=5x+10[/tex]       add 7 to both sides

[tex]\boxed{y=5x+17}[/tex]

y=8.5x

y= money earned

x= hours worked

The equation to find Dianna's money earned as a lifeguard is e = 8.50h.

To find Dianna's money earned, we can write an equation using the formula for calculating earnings:

Earnings=Hourly Rate × Number of Hours Worked

In this case, Dianna's hourly rate is $8.50, and let's denote the number of hours she worked as ℎ.

So, the equation to find Dianna's money earned

E=8.50×h

Where:

E represents the total earnings

8.50 represents Dianna's hourly rate

h represents the number of hours worked

This equation will give us the total amount of money Dianna earned based on the number of hours she worked.

Answer:

25%  

Step-by-step explanation:

Change = Final - initial

% Change =(Final - Initial)/Initial × 100%

% Change = (50 - 40)/40 × 100%

% Change = 10/40 × 100%

% Change = 25%

Answer:

25%

Step-by-step explanation:

1) Find the difference of the two numbers, do (Largest Number)-(Smallest Number).

2) Use your difference as a fraction. Use the difference over the initial value.

3) Create a proportion

10/40 = x/100

4) Cross multiply, 10*100 = 200, 40*p = 40p

5) Simplify expression 1,000=40p

6) Solve, 1,000/40 = 25

7) Put it as a fraction, 25/100

8) Make it a percent 25%

Answer: [tex]\bold{\pm \{1, 2, 3, 4, 6, 12, \dfrac{1}{2}, \dfrac{3}{2}\}}[/tex]

Step-by-step explanation:

        Q                       P

f(x) = 2x³ - bx² + cx + 12

Possible rational roots are all of the factors of P divided by all of the factors of Q, including both positive and negative signs.

[tex]\quad \pm \dfrac{\text{factors of P}}{\text{factors of Q}}\\\\=\pm \dfrac{\text{factors of 12}}{\text{factors of 2}}\\\\=\pm \dfrac{1,2,3,4,6,12}{1,2}\\\\=\pm 1, \pm 2, \pm 3, \pm 4, \pm 6, \pm \dfrac{1}{2}, \pm \dfrac{3}{2}\\[/tex]

Answer:

1,12/ Not a solution

2,10/ solution

4,5/ solution

6,10/ not a solution

12,8/ not a solution

18,6/ not a solution

Step-by-step explanation:

all you have to do is put it into the equation.

for example:

1,12

1x1+12x3= $37

1x1+12x1.5= 19lbs

This is not a solution because he can carry it but doesn't have the money to buy it.

Answer:

(1,12)=no solution

(2,10)=Solution

(4,5)=Solution

(6,10)=no solution

(12,8)=no solution

(18,6)=no solution

Step-by-step explanation:

You have to add the money and pounds each together. For example, the equation you would set up would be, for money: 1(1)=1 and the jars 3(12)=36. Together, it equals 37, which would be over the total amount that Tyler may buy. If you do all of these to show your work, then the answers are the ones shown above.

Answer:

you divide the top number by the bottom number

Step-by-step explanation:

2/5 = 0.4

Answer:

60%

Step-by-step explanation:

Use the equation a=pw. A= Part   P= Percent. W= Whole

A= $56.49

P = x (unknown)

W= $ 89.99

Equation = 56.49=89.99x

You divide 89.99 on both sides to be equal and isolate the variable x. You would divide 56.49 by 89.99 and will get 0.627736415. You would round it to the nearest tenth , 0.6 so the percent is 60%

The percent off is 37.2263 % of the sale price.

Calculations :

                with the same whole number                     =   3350/8999

              numerator and the denominator                 =  0.372263 x  [tex]\frac{100}{100}[/tex]

               equal to 100 as a percent                             = 37.2263 %

Learn more about Percentage change refer :

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Answer: The new price is $3350.

Answer:

$3350; $30 150  

Step-by-step explanation:

Original price = $33 500

Discount = 33 500 × 10 %

Discount = 33 500 × 0.10

Discount = $3350

New price = Original price - Discount

New price = 33 500 - 3350

New price = $30 150

Answer:

4:2 is the same as:

2:1

8:4

or anything that is proportional to 4:2

Step-by-step explanation:

A proportion is anything that corresponds in size or amount to something else.

Answer:

2:1

Step-by-step explanation:

just reduce the ratio b and divivd bith sides by 2

Answer:4/52=1/13

Step-by-step explanation:

The deck has 52 cards and contains 4 aces. When you draw a card, the probability of drawing an ace is 4/52=1/13

Answer:

100% profit of 1500

Step-by-step explanation:

One the first calculator David earns 25% profit:

25% + 1500 = 1,875

He gets a 25% on the second calculator:

1500 - 25% = 1,125

In total he receives 1125 + 1875 = 3000

Therefore he has 100% profit

Answer:

The 8th term is 23

Step-by-step explanation:

If we are given the formula for the sequence

an=2n+7,

then to find the 8th term we substitute n=8 into the formula.

a8 = 2(8) +7

a8 = 16+7

a8 = 23

The 8th term is 23

Answer:

a (5,2)

Step-by-step explanation:

To get to the smiley face, we move 5 units in the x direction from the origin, then we move 2 units up in the y direction  (x,y)  so the point is at (5,

If an image is being enlarged by 15% you would take the base number multiply it by the percent in decimal form and add the result to the base number.

4.25*0.15=0.6275

0.6375+4.25=4.8875

Answer: 4.8875

To find out the height of the photocopied drawing, we first calculate 15% of the original height (4.25 inches) and add this to the original height. The photocopied drawing is approximately 4.89 inches tall.

The student photocopied a drawing with the copier set to enlarge the image by 15%. If the original drawing is 4.25 inches tall, the enlarged photocopied drawing would be larger by 15% of 4.25 inches.

Firstly, to find 15% of 4.25 inches, you multiply 4.25 by 0.15 (the decimal equivalent of 15%), which equals 0.6375 inches.

Adding this to the original height of the drawing, we get 4.25 inches + 0.6375 inches = 4.8875 inches, which is approximately 4.89 inches when rounded to two decimal places.

So, the photocopied drawing is approximately 4.89 inches tall.

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The proportional relationship:

y = ax for a > 0.

Therefore your answer is:

Answer: you need to get a common denominator.. once you have a common denominator, you can compare numerators to see what is larger..

Step-by-step explanation:

to get the common denominator, you would first see what this would be.. in this case 18, as that's the lowest.  then, you would multiply each fraction by 2/2 for first and 3/3 for second, which are just funky looking ones.  therefore, D is the correct answer.

Answer:It is C

Step-by-step explanation:In the question it says to COMPARE the fraction.

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