Eric invested in a savings bond for 4 years and was paid simple interest at an annual rate of 4%. The total interest that he earned was $1120. How much did he invest?

The quadratic function f(x) = 2x² - 16x + 24 can be rewritten in the vertex form f(x) = 2(x - 4)² + 4.

Given the function in the question:

f(x) = 2x² - 16x + 24

To determine the vertex form f(x) = a(x-h)² + k, we need to complete the square.

Factor out the leading coefficient of 2:

f(x) = 2x² - 16x + 24

f(x) = 2(x² - 8x + 12)

To complete the square, we need to add and subtract the square of half of the coefficient of x:

f(x) = 2[(x² - 8x + 16) - 4] + 8

Since (x² - 8x + 16) is a perfect square trinomial, we factored as (x - 4)².

f(x) = 2[(x - 4)² - 4] + 8

Now we can simplify and rewrite in the desired form:

f(x) = 2(x - 4)² - 4 + 8

f(x) = 2(x - 4)² + 4

Therefore, the vertex form is f(x) = 2(x - 4)² + 4.

Learn more about vertex form here: https://brainly.com/question/29185886

#SPJ1

The area of the composite figure in this problem is given as follows:

A = 87 ft².

When we want to obtain the area of a composite figure, we must add the areas of all the components of the figure.

The figure in this problem is composed as follows:

The areas are calculated as follows:

Hence the area of the composite figure is given as follows:

A = 10 x 6 + 6 x 3 + 0.5 x 6 x 3

A = 87 ft².

More can be learned about the area of a composite figure at https://brainly.com/question/10254615

#SPJ1

Answer:

y=-3

Step-by-step explanation:

Answer:

Y = - 3

Step-by-step explanation:

So lets help you out here.....

First of all you should set up how you have to solve, let do this step by step...

Step 1 : 2y + 3y - 18 = - 33

Step 2 : Combine like terms... (2y + 3y = 5y)

Step 3 : Set up your new equation (5y - 18 = - 33)

Step 4 : Subtract negative 18 by negative 33 (- 18 - 33 = -15)

(PS: In a calculator - 18 - 33 is -51 but the 18 is also a negative so it would be - 15)

Step 5 : Divide (- 15 / 5 = - 3)

And that is how you solve this problem, have a great day!!!!!!

Answer: Maryanne's conjecture could have been that the perimeter of the image of the triangle will be the same as the perimeter of the original triangle.

Step-by-step explanation:

The angles in the triangle are;

A = 26.67°, B = 29.06°, C = 124.27°

We know that we have the triangle as ΔABC  and a-13.9, b-15.2, c-25.7

Using the Cosine rule;

a^2 = b^2 + c^2 - 2ac CosA

(13.9)^2 = (15.2)^2 + (25.7)^2 - 2(15.2 * 25.7)Cos A

193.21 = 891.35 - 781.28CosA

193.21 -  891.35 =  - 781.28CosA

Cos A = 193.21 -  891.35 /  - 781.28

A = Cos-1 (193.21 -  891.35 /  - 781.28)

A = 26.67°

Then;

c^2 = a^2 + b^2 - 2abCosC

(25.7)^2 = (13.9)^2 + (15.2)^2- 2(13.8 * 15.2)CosC

660.49 = 424.25 - 419.52CosC

660.49 -  424.25 = - 419.52CosC

C= Cos-1 (660.49 -  424.25 / - 419.52)

C = 124.27°

Then B;

180 - ( 26.67° + 124.27°)

= 29.06°

Learn more about cosine rule: https://brainly.com/question/30869929

#SPJ1

The three different types of visuals we use to organize all the possible outcomes in a sample space are:

For the second part of the question, select one of the three styles of graphical representation you listed in Part A to make a sample space for all probable results for putting the 3 books on a rack.

The table will show every feasible end result for setting up the 3 books on a rack.

Learn more about sample on

https://brainly.com/question/24466382

#SPJ1

The addition of the given fraction expression is 7/8.

In mathematics, an expression is a combination of numbers, symbols, and/or operators that represents a mathematical quantity or relationship. It can be a simple combination of numbers or a more complex combination involving variables, functions, or other mathematical constructs.

When adding fractions with the same denominator, you simply add the numerators and keep the denominator the same.

In this case, both fractions have a denominator of 8, so we can add their numerators:

5/8 + 2/8 = (5 + 2)/8 = 7/8

Thus, the sum of 5/8 and 2/8 is 7/8.

For more details regarding fractions, visit:

https://brainly.com/question/10354322

#SPJ1

1) For the following set of test scores for a history class, 100, 45, 60, 60, 50, 50, 45, 95, 60, 55, 40, it would be better for the teacher to consider D) The mean because it is higher and the teacher wants to feel good about the students.

2) The mode of these data about the high temperatures in Orlando for the past 8 days would be 90.

3) The median of these data about the high temperatures in Orlando for the past  8 days would be 80.

The mean, mode, and median are three centers of measurement.

The mean refers to the average value in the data set, obtained as the quotient of the total value divided by the number of items.

The mode refers to the value that occurs most in the data set.

Lastly, the median is the middle value for a data set arranged in descending or ascending order.

1. Test Scores:

100, 45, 60, 60, 50, 50, 45, 95, 60, 55, 40

Total value = 660

Number of data items = 11

Mean = 60 (660 ÷ 11)

Median = 55

Mode = 60

2. High Temperature:

91, 90, 90, 90, 84, 82, 81, 90

Total Value = 698

Number of data items = 8

Mean = (87.25 (698 ÷ 8)

Median = 90

Mode = 90

3. High Temperature:

91, 90, 90, 90, 84, 82, 81,90

Median = 80 (81, 82, 84, 90, 90, 90, 90, 91)

Learn more about the mean, median, and mode at https://brainly.com/question/14532771.

#SPJ1

Answer:

5y= -3x +15

Step-by-step explanation:

y=mx+c is slope Intercept form where M is slope and c is Intercept

The probability of dying from heart disease is 0.1667 or 16.67%.

The odds in favor of an event are defined as the ratio of the probability of the event occurring to the probability of the event not occurring. In this case, the odds in favor of dying from heart disease are 1 to 5.

So, we can set up the following equation:

Odds in favor of dying from heart disease = probability of dying / probability of not dying

1/5 = probability of dying / probability of not dying

We can solve for the probability of dying by cross-multiplying:

probability of dying = odds in favor of dying from heart disease / (odds in favor of dying from heart disease + 1)

probability of dying = 1 / (1 + 5)

probability of dying = 1/6

Therefore, the probability of dying from heart disease is 0.1667 or 16.67%.

Learn more about probability here:

brainly.com/question/14290572

#SPJ1

Changing the multiplication sign to a division sign, we will have 28 ÷ 7

Multiplication and division rule :-

Given the product of 28 and 1/7, we are to write a division equation involving division by a fraction.

Given,

28 * 1/7 = 4

Changing the multiplication sign to a division sign, we will have:

28 * 1/7 = 28/7

This can also be written as 28 ÷ 7

Learn more on division and product here: brainly.com/question/22354874

#SPJ1

The temperature measured in Kelvin (K) is the temperature measured in Celsius (C) increased by 273.15. This can be modeled by the equation K = C + 273.15. When solved for C, the equation is K -  273.15. Therefore, the correct option is option C.

Temperature is a unit of warmth or coldness that can be defined in the context of any number of arbitrary scales. It indicates the direction through which the energy from heat will naturally flow, i.e., through a hotter (body) to a colder (body) body. Temperature cannot be the same as a thermodynamic system's energy; for instance, a blazing match is significantly hotter than an iceberg.

K = C + 273.15

K - 273.15 = C + 273.15 - 273.15

K -  273.15 = C

Therefore, the correct option is option C.

To know more about temperature, here:

https://brainly.com/question/11464844

#SPJ1

Your question is incomplete but most probably your full question was,  

The temperature measured in Kelvin (K) is the temperature measured in Celsius (C) increased by 273.15. This can be modeled by the equation K = C + 273.15.

When solved for C, the equation is

C = K – 273.15

C = 273.15 – K

C = K + 273.15

C = 273.15K

Trapezium T is reflected across line x = 3 to form trapezium U and reflected across line x = 7 to form tralpelzium V

The figure is attached

Reflection across a line is a geometric transformation which mirrors a point, shape or figure exactly across a pre-defined plane known as the Line of Reflection.

In other words, the size and general outline are kept in tact while orientations are adjusted. Furthermore, each corresponding point on either side of the Line of Reflection is found to be equidistant from the said axis and lies along a perpendicular line.

Learn more about reflection over a line at

https://brainly.com/question/26642069

#SPJ1

AI initially had 786,432 pennies.

We have,

Let P be the initial number of pennies AI had.

According to the problem:

AI gives 3/8 of P pennies to Bev.

Bev gives 3/8 of what she got from AI to Carl.

Carl gives 3/8 of what he got from Bev to Dani.

Set up an equation to solve for P.

Let's start by finding how many pennies Dani gets from Carl:

Carl gives 3/8 of what he got from Bev to Dani, so Dani gets:

(3/8) x (3/8) x (3/8) x P pennies from Carl.

Next, let's find how many pennies Carl gets from Bev:

Bev gives 3/8 of what she got from AI to Carl,

So Carl gets (3/8) x (3/8) x P pennies from Bev.

Now we can substitute this expression for the number of pennies Carl gets from Bev into the expression for the number of pennies Dani gets from Carl:

Dani gets (3/8) x (3/8) x (3/8) x P pennies from Carl = (3/8) x (3/8) x (3/8) x (3/8) x P pennies from Bev =  (3/8) x (3/8) x (3/8) x (3/8) x (3/8) x P pennies from AI.

We know that Dani gets 378 pennies, so we can set this expression equal to 378 and solve for P:

(3/8) x (3/8) x (3/8) x (3/8) x (3/8) x P = 378

Simplifying this expression:

P = 378 x (8/3) x (8/3) x (8/3) x (8/3) x (8/3)

P = 786,432

Therefore,

AI initially had 786,432 pennies.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ1

The quotient of the expressions 99 m² n³-81m³n²-18mn and 3mn is 33mn² - 27m²n - 6

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

99 m² n³-81m³n²-18mn

__________________

3mn

To find the quotient of the expressions, we simply divide each term of the numerator by 3mn

Using the above as a guide, we have the following:

99 m² n³-81m³n²-18mn

__________________      = 33mn² - 27m²n - 6

3mn

Hence, the solution is 33mn² - 27m²n - 6

Read more about expressions at

https://brainly.com/question/1859113

#SPJ1

1) The scale factor of dilation is 1/3

2) The orientation is preserved in dilation of A to A'

3) The congruence is not preserved in dilation of A to A'

We know that the scale factor is nothing but the ratio of the size of the transformed image to the size of the original image.

Here from the attached graph we can observe that the square A is transformed to A'

The side length of square A is 18 units and the side length of square A' is 6

So, the scale factor would be,

r = A' / A

r = 6/18

r = 1/3

We know that a dilation preserves the shape and orientation of the figure, but changes the size of he figure.

So, the dilations do not preserve congruence, as it changes the size of a figure.

Learn more about the dilation here:

https://brainly.com/question/29229399

#SPJ1

Answer: The jar that would experience the greatest pressure is Jar D.

This is because the pressure of a gas is directly proportional to its temperature (according to the ideal gas law). Since all four jars have the same number of gas molecules, the jar with the highest temperature (Jar D) would have the greatest pressure.

Step-by-step explanation:

Answer:

Step-by-step explanation:

hello :

let : x ,x+1 ,x+2   three consecutive integers

x +x+1 +x+2 = 108

3x =105

x = 105/3

x = 35

35  ,  36  , 37

Step-by-step explanation:

There are 4 ways to select an officer

   multiply this by the number of ways to select  2 others from the 15

4  *   15 C 2 = 4 *  15!/(2!13!)  = 420 ways to select

1/7 square units make up the entire area under the curve from x = 7 to infinity.

To find the area under the curve [tex]y = x^{-2}[/tex] from x = 7 to x = t, we can integrate the function with respect to x:

[tex]\int\limits^7_t x^{(-2)} dx = [-x^{(-1)}] = [-1/t + 1/7][/tex]

To evaluate this expression for t = 10 and t = 100, we substitute these values:

[-1/10 + 1/7] = 0.0428 (rounded to four decimal places)

[-1/100 + 1/7] = 0.1328 (rounded to four decimal places)

To find the total area under the curve from x = 7 to infinity, we can integrate the function with respect to x from 7 to infinity:

[tex]\int\limits^7_t {x} x^{(-2)} dx \\= [-x^{(-1)}] \\= [0 - (-1/7)] \\= 1/7[/tex]

Therefore, the total area under the curve from x = 7 to infinity is 1/7 square units.

Learn more about the area under the curve here:

https://brainly.com/question/31134420

#SPJ1

Answer:

there gonna have to buy 120 to pay the rent

The equation with the following y-intercepts are matched

a) c ⁢ x + b ⁢ y = a: (0, a/b)

b) c ⁢ x + a ⁢ y = b: (0, b/a)

c) b ⁢ x + a ⁢ y = c: (0, c/a)

d) a ⁢ x + b ⁢ y = c: (0, c/b)

Given data ,

Let the set of equations be represented by

c ⁢ x + b ⁢ y = a

c ⁢ x + a ⁢ y = b

b ⁢ x + a ⁢ y = c

a ⁢ x + b ⁢ y = c

Now , the y-intercept of the equation is when the value of x = 0

So , when x = 0

The y intercepts of the equation are

c ⁢ x + b ⁢ y = a: (0, a/b)

c ⁢ x + a ⁢ y = b: (0, b/a)

b ⁢ x + a ⁢ y = c: (0, c/a)

a ⁢ x + b ⁢ y = c: (0, c/b)

Hence , the equations are solved

To learn more about equation of line click :

https://brainly.com/question/14200719

#SPJ1

The warranty expense that the company report for this copier in Year 1 is $650.

The estimated warranty liability for this copier as of December 31 of Year 1 is $650

The estimated warranty liability for this copier as of December 31 of Year 2 is $556

The warranty expense that the company report for this copier in Year 1 is:

= 13000 × 5%

= $650.

Also, the estimated warranty liability for this copier as of December 31 of Year 2 is $556

Learn more about warranty on

https://brainly.com/question/14227081

#SPJ1