3x^2 - 5x -1 =0
Quadratic Equation
please explain step by step

Answer:

119 cm²

Step-by-step explanation:

Area of white triangle:

             base = 9 cm

           height = 14 cm

       [tex]\sf \boxed{Area \ of \ triangle = \dfrac{1}{2}*base *height}[/tex]

                                    [tex]\sf =\dfrac{1}{2}*9*14\\\\ = 9*7\\\\= 63 \ cm^2\\[/tex]

Area of trapezium:

          [tex]\sf \boxed{Area \ of \ trapezium =\dfrac{(a+b)*h}{2}}[/tex]

Here, a and b are the parallel sides of trapezium & h is the height.

           a = 9 cm ; b = 17 cm and h =14 cm

[tex]\sf Area \ of \ trapezium = \dfrac{(9+17)*14}{2}[/tex]

                           [tex]= \dfrac{26*14}{2}\\\\\\=13*14\\\\= 182 \ cm^2[/tex]

Area of shaded region = area of trapezium - area of white triangle

                                      = 182 - 63

                                      = 119 cm²

Answer:

area of shaded region = 119 cm²

Step-by-step explanation:

the outer figure has one pair of parallel sides and is a trapezium.

the shaded area (A) is calculated as

A = area of trapezium - area of white triangle

the area of a trapezium is calculated as

area = [tex]\frac{1}{2}[/tex] h (b₁ + b₂ )

where h is the perpendicular height between the bases b₁ and b₂

here h = 14 , b₁ = 9 , b₂ = 17 , then

area = [tex]\frac{1}{2}[/tex] × 14 × (9 + 17) = 7 × 26 = 182 cm²

the area of the triangle is calculated as

area = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )

here b = 9 and h = 14 , then

area = [tex]\frac{1}{2}[/tex] × 9 × 14 = 4.5 × 14 = 63 cm²

then area of shaded region (A) is

A = 182 - 63 = 119 cm²

The volume, surface area, and ratio of the height of the box to the length will be 296.98 cubic inches, 292.35 square inches, and 0.88, respectively.

A closed solid with two parallel rectangular bases joined by a rectangle surface is known as a rectangular prism.

A rectangular box has a length of √90 inches, a width of √14 inches, and a height of √70 inches.

The volume of the box is given as,

V = LBW

V = (√90) x (√14) x (√70)

V = 296.98 cubic inches

The area of the top of the box is given as,

SA = 2(LW + WB + BL)

SA = 2(√90 x √14 + √14 x √70 + √70 x √90)

SA = 292.35 square inches

The ratio of the height of the box to the length of the box is given as,

H / L = √70 / √90

H / L = 0.88

More about the rectangular prism link is given below.

https://brainly.com/question/12649592

#SPJ1

The value of the liquid assets of the salesperson is; D: $613,570

Liquid assets are defined as a set of property or investment that can be converted easily into cash. These liquid assets include raw cash, fast selling and marketable securities that can be traded and converted into cash within a short time.

Hence the liquid assets of the person, along with their values, are listed as follows:

The returns from someone's retirement portfolio will supplement your Social Security benefits, and it can even prevent you from having to live squarely on a fixed income. Due to the fact that a retirement portfolio is diversified, it can protect you from market volatility by balancing different income classes. Retirement Portfolio in this question is given as  $473,906 (It is called the Retirement fund)

Investments = $139,664

The total value of the person's liquid assets is given by the sum of the values of each of these two assets, hence:

473,906 + 139664 = $613,570

Read more about Liquid Assets at; https://brainly.com/question/11209470

#SPJ1

Answer:

An exponent refers to the number of times a number is multiplied by itself.

Step-by-step explanation:

For example, 2 to the 3rd (written like this: 23) means: 2 x 2 x 2 = 8. 23 is not the same as 2 x 3 = 6. Remember that a number raised to the power of 1 is itself.

The total cost of the rectangular frame is C = $240.

After a small search online, I found the original question, it is written at the end of the answer.

Remember that for a rectangle of length L and width W, the perimeter is given by:

P = 2*(L + W)

In this case, we know that the frame is 6 inches by 14 inches, then the perimeter will be:

P = 2*(6in + 14in)

P = 2*20in = 40in

And we know that the framing material costs $6 per inch, then the total cost of the frame will be:

cost = 40*$6 = $240

Learn more about rectangles by reading:

https://brainly.com/question/17297081

#SPJ1

After a small search online, I found that the complete question is:

"You decide to buy a custom frame for a painting which measures 4 by 6 inches. If the framing material costs $2 per inch, what is the total cost of framing material?"

Answer:

x=14

Step-by-step explanation:

The angles inside a triangle add up to 180 degress all the time, therefore

58+80+3x=180

simplify

138+3x=180

subtract 138 from both sides of the equation

3x=42

divide both sides by 3

x=14

The population of the Boom town increased by 25% compared to last year, present population is 6000 then last year population is equal to 4800.

As given in the question,

Given population of the present year is equal to 6000

Let us consider 'x' be the last year population.

Increased in population compared to last year = 25%

Required equation is given by :

x + (25/100)x = 6000

⇒ (125 / 100 )x = 6000

⇒ x = ( 6000 × 100 ) / 125

⇒ x = 4800

Therefore, the population of the last year as per given data of the present year is equal to 4800.

The above question is incomplete, the complete question is:

Compared to last year, the population of Boom Town has increased by 25%. The population is now 6,000. What was the population last year?

Learn more about population here

brainly.com/question/29095323

#SPJ4

In the overlapping triangles, the statements needed to be match to the reasons are explained below.

A triangle is sometimes referred to as trigon because it is bounded by three straight sides, and has a measure of internal angles which add up to 180^o.

Considering the overlapping triangles given in the question, the statements  to be matched to the reasons are given below:

                 STATEMENT                                      REASON

1. ΔRTN ≅ ΔSTM                                        Side-Angle-Side (SAS)

2. <T ≅ <T                                                   Betweenness

3. RN = SM                                                  Reflexive property

4. RM = SM, TM = TN                                 Given

5. RT = ST                                                   Substitution

6. RM + TM = TN  + SN                              CPCTE

7. RM + TM = SN + TM                                Addition property of equality

The match of statements with the reasons are required to proof that RN = SM

Learn more about statements and reasons of sides of a triangle at https://brainly.com/question/29969150

#SPJ1

It is "3 pairs" not "3 pair", because a pair is a set of two things, so if you have 3 of them it would be 3 sets of two things or 3 pairs.

Answer:

2.4

Step-by-step explanation:

2/5=AB/6

=>AB=2.4

The equation in slope intercept form is

y = 5/2x + 5

One of the most popular ways to describe a line's equation is in the slope intercept form of a straight line. When the slope of the straight line and the y-intercept are known, the slope intercept formula may be used to get the equation of a line ( the y-coordinate of the point where the line intersects the y-axis). The equation of a line is the equation that each point on the line fulfills.

The slope intercept form is a technique for figuring out a straight line's equation in the coordinate plane. Any point's coordinates on a straight line must fulfill a certain relation, which is known as the equation of a straight line.

Any location that is not on the line will not fulfill the coordinates.

This equation's solution is simple to find. A straight line's slope, or angle of inclination from the x-axis, and the intercept it makes with the y-axis are both necessary to determine the slope intercept form of the line.

Two points on the line are (-2,0) and (0,5)

The slope intercept form is

y = mx + c

so when y = 0 and x = -2

0 = -2(m) + c

or,  2m -c = 0 ..(i)

again when x= 0 y = 5

5 = 0*m + c

c = 5

so putting c= 5 in equation (i) we get

m = 5/2

so the equation in slope intercept form is

y = 5/2x + 5

To learn more about Slope intercept form refer to :

https://brainly.com/question/1690609

#SPJ1

The proper way to enter the piece-wise function into Desmos is given as follows:

A piecewise function is a function that has different definitions, based on the input of the function.

The definitions for this problem are given as follows:

The correct command to enter an interval in Desmos is between {}, hence the intervals are given as follows:

The definitions of f(x) are entered using y = f(x), hence the correct option is given by the second option.

More can be learned about piecewise functions at https://brainly.com/question/30348444

#SPJ1

The linear function to model this problem is y = 2.50x + 5

A linear function is a type of mathematical function that describes a straight line. A linear function is defined by an equation of the form:

y = mx + c

Where y is the dependent variable (the variable being measured or predicted), x is the independent variable (the variable being used to make the prediction or explanation), m is the slope of the line (the rate of change of y with respect to x), and c is the y-intercept (the value of y when x is zero).

The linear function to model this problem is given as;

y = 2.50x + 5

We can use a graphing calculator to represent this.

Kindly find the attached graph below

Learn more on linear function here;

https://brainly.com/question/15602982

#SPJ1

Inequality formula:

The inequality formula is a mathematical statement that compares two values using the less than (<) or greater than (>) symbols.

The inequality formula is used to determine if one value is greater than, less than, or equal to another value. It can be written in the form of A < B or A > B, with A and B representing any two values. This is useful for solving problems that involve comparison, such as determining whether a number is greater than another or if a certain value is within a certain range. The inequality formula can also be used to graph inequalities on a number line, which is useful for visualizing the relationships between two values.

Learn more about inequality: https://brainly.com/question/25275758

#SPJ4

The first packet by the second packet is the better size packet because the first packet is more expensive than the first packet.

The unit technique is a method of problem-solving that entails calculating the value of a single unit, multiplying that value, and then calculating the required value. To put it simply, the unit method is used to extract a single unit value from a specified multiple. One pen costs 400 rupees, thus 40 pens would cost 400 rupees. There might be a regular procedure for doing this out. merely one nation. anything containing a distinctive component. Mathematics of matrices or operators, linear algebra, mathematical analysis, and its adjoint and reciprocal are all equivalent.

given

The price of a 500 g packet of Healthy Flakes is €3.20.

Healthy Flakes come in packets of 750 g for €4.50.

A better size packet of 500 g costs €3.20. A two-pack of 750 g costs €166.66.

The first packet by the second packet is the better size packet because the first packet is more expensive than the first packet.

To know more about unitary method  visit:

https://brainly.com/question/28276953

#SPJ1

Using quadratic equation, the value of x is 5 and -1/3

3x²+16x-5

3x² +16x -5= 0

Split the middle term using two factors

3x² -15x -x -5= 0

Take out the common factors

(3x-1)(x-5)= 0

3x+1= 0

3x= 0-1

3x= -1

x= -1/3

x-5= 0

x= 0+5

x= 5

Hence x = 5 and x= -1/3

Read more on quadratic equation here

https://brainly.com/question/1301423

#SPJ1

Substitute the values into the Pythagorean theorem and show that a false statement results.

To learn more about Pythagorean theorem refer to:

https://brainly.com/question/343682

#SPJ1

For the given line segment, the value of HJ is 32 and hence option a is the correct answer.

Two unique points on a line define the boundaries of a line segment. A line segment is sometimes referred to as a section of a line that links two places.

Given that:

GJ = 56

[tex]\frac{GH}{HJ} =\frac{3}{4}[/tex]

The line segment GHJ = GJ can be written as follows:

GJ= GH +HJ

From the given ratio we know that:

GH = 3x and

HJ = 4x

Thus, the value of GJ = 3x + 4x

GJ = 7x

56 = 7x

x = 8

Substitute the value of x = 8 in GH = 3x and HJ = 4x.

GH= (3)(8) = 24

HJ = (4)(8) = 32

Hence the value of HJ = 32 and option a is the correct answer.

Learn more about line segment here:

https://brainly.com/question/30072605

#SPJ1

Answer: 439.2 miles

Step-by-step explanation:

213.5/3.5=61

61*7.2=439.2 miles in total

The slope and the y-intercept of the line are 3 and 5 respectively.

The general equation of a straight line is -

y = mx + c

{m} - slope.

{c} - intercept along the y - axis.

Given is the equation of a straight line → y = 3x + 5

The equation of the straight line given is -

y = 3x + 5

We can compare and conclude that -

m = 3

c = 5

Therefore, the slope and the y-intercept of the line are 3 and 5 respectively.

To solve more questions on straight lines, visit the link below -

brainly.com/question/28951560

#SPJ1

2 3 as an exponent is written as 2^3 and it represents 2 multiplied by itself 3 times. 2^3 = 2 * 2 * 2 = 8

In the notation 2^3, the number 2 is the base and the number 3 is the exponent. The exponent tells you how many times the base is being multiplied by itself. In this case, 2 is multiplied by itself 3 times.

It's important to note that the exponent is also known as the power, so 2^3 is also read as 2 to the power of 3.

In summary, 2 3 as an exponent is written as 2^3 and it represents 2 multiplied by itself 3 times, or 2 to the power of 3 which is equal to 8. Understanding this concept is important for solving mathematical problems, especially in algebra and calculus.

Learn more about Exponents here:

https://brainly.com/question/26669360

#SPJ4

An equation that can be used to determine the number of hours, h, that Moira needs to read to finish the book is h + 178 = 214.

In order to write an equation that model this situation, we would assign a variable to the number of hours that is needed to read to finish the book and the total number of hours respectively, and then translate the word problem into algebraic equation as follows:

Next, we would translate the word problem into an algebraic equation based on the fact that she read for 178 hours yesterday as follows;

h + 178 = T

Substituting the given parameters into the algebraic equation, we have the following;

h + 178 = 214

Solving for h, we have the following;

h = 214 - 178

h = 36 hours.

Read more on equation here: brainly.com/question/18912929

#SPJ1

The function's value at x = 1, y = - 1 Or f(1) = -1.

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

The x-coordinate represents the input and the y-coordinate represents the output.

From the given points in the graph, we can conclude that when x = 1, y = -1.

Therefore, The value of the function f(1) = -1.

learn more about functions here :

brainly.com/question/12431044

#SPJ2

in the form ax²+bx+c, in which a, b, and c are constants, the value of given quadratic equation a+b+c is 0.

Simplification is the process of making an expression or equation simpler, while still maintaining its meaning or function. This can be done by combining like terms, combining or removing unnecessary elements, or applying mathematical rules or identities.

For example, in algebra, simplifying an expression might involve combining the coefficients of similar terms (such as 2x + 3x = 5x), or factoring out a common factor from multiple terms (such as [tex]2x^2 + 4x = 2x(x+2).[/tex]

The goal of simplification is to make the expression or equation easier to understand, manipulate, or solve.

The expression given is already in the form ax^(2) + bx + c, so we can simply add the coefficients of the x^(2), x and constant terms to find the value of a+b+c:

[tex](2x^{(2)} -3x+1)-(-2x^{(2)}-3x+2) = 2x^{(2)} - (-2x^{(2)}) + (-3x) - (-3x) + 1 - 2[/tex]

a+b+c = 2 - (-2) + (-3) - (-3) + 1 - 2 = 2 + 2 - 3 - 3 + 1 - 2 = 0

Therefore, the value of a+b+c is 0.

To learn more about quadratic equations visit:

brainly.com/question/18579732

#SPJ1

The value of exponential 2 is 2^2, or 4. This means two multiplied by itself two times or squared.

Exponential notation is a way of expressing a number, usually greater than 10, as a base number, the number 2 in this case, raised to a power, which in this case is 2. Therefore, exponential 2 is written as 2^2, which means two multiplied by itself two times or squared.

For example, if we wanted to find the value of exponential 8, we could easily calculate 2^8, or 256, which is much faster than multiplying 2 by itself 8 times. Exponential notation is also helpful when calculating exponents with variables.

For example, if we wanted to find the value of 3^x, we could use exponential notation to find the answer quickly. In summary, exponential notation is a useful tool for quickly finding the value of a number raised to a power.

Learn more about Exponential Values here:

https://brainly.com/question/9481995

#SPJ4

Answer: Would it just be 2/3? It says 2/3 are alley cats.

Step-by-step explanation:

Answer:

1/3 of them are alley cats

Step-by-step explanation:

Answer:

y = 2x + 5

Figure 505

Step-by-step explanation:

(3,11) ( 4,13)

Find the slope

Change in y over the change in x

[tex]\frac{13-11}{4-3}[/tex] = [tex]\frac{2}{1}[/tex] = 2

slope (m) is 2.

Part A

Find the y -intercept

m = 2

x = 3     from the point (3,11)

y = 11    from the point (3,11)

y = mx + b  Substitute what I know and solve for b

11 = (2)(3) + b

11 = 6 + b  Subtract 6 from both sides

11 - 6 = 6 -6 + b

5 = b

The y intercept (b) is 5

y = mx + b

y = 2x + 5

Part B

y =  2x + 5

1015 = 2x + 5  Subtract 5 from both sides

1015 - 5 = 2x + 5 - 5                                                    

1010 = 2x  Divide both sides by 2

505  

The balance on the credit card after three years would be $20,111.25.

What is continuous compound interest?

Continuous compounding means that there is no limit to how often interest can compound. Compounding continuously can occur an infinite number of times, meaning a balance is earning interest at all times.

The balance on the credit card after three years can be calculated using the formula for continuous compound interest:

A = P * e^(rt)

where A is the final balance, P is the initial principle (the amount of the loan), r is the annual interest rate as a decimal, and t is the number of years.

In this case, P = $12,500, r = 0.1599 (15.99% as a decimal), and t = 3.

Plugging these values into the formula:

A = $12,500 * e^(0.1599 * 3)

A = $12,500 * e^0.4797

A = $12,500 * 1.6089

A = $20,111.25

Rounded to the nearest penny: $20,111.25

Hence, the balance on the credit card after three years would be $20,111.25.

To learn more about the continuous compound interest visit,

https://brainly.com/question/14303868

#SPJ1

Answer:

a = 2

b = 7

Step-by-step explanation:

The given rectangle is a parallelogram.

10b + 1 = 9b + 8

10b - 9b = 8 - 1

b = 7

2. WX = ZY

6a + 4 = a + 14

6a - a = 14 - 4

5a = 10

a = 2

The coordinates of V’ in the image of TUV under a dilation centered at the origin with scale 5 followed by a translation 3 units right and 2 units down can be found by following the transformation sequence.

To learn more about a dilation and a translation refer to:

https://brainly.com/question/29289488

#SPJ1