3.4 MIXED FACTORING

1. Utilize all of the strategies for factoring in order to factor the following polynomials.
Reminder: Combine like-terms prior to factoring.

(2x^2 + 23x) - (3x - 18)

Answers

Answer 1

Answer:

2 (x + 1)(x + 9)

Step-by-step explanation:

The given expression is
[tex]\left(2x^2\:+\:23x\right)\:-\:\left(3x\:-\:18\right)[/tex]

and we are asked to factor it

Step 1
Remove parentheses
[tex]\left(2x^2\:+\:23x\right) = 2x^2 + 23x\\\\-\:\left(3x\:-\:18\right) = - (3x) - (-18) = -3x + 18\\\\[/tex]

Step 2
Add the individual terms to correspond to the original expression:
[tex]\left(2x^2\:+\:23x\right)\:-\:\left(3x\:-\:18\right) \\\\= 2x^2 + 23x -3x + 18\\\\= 2x^2 + 20x + 18[/tex]

Step 3
Factor out common term 2

[tex]2x^2+20x+18 \\\\= 2\left(x^2+10x+9\right)[/tex]

Step 4
Factor [tex]x^2+10x+9[/tex]

To do this find two numbers such that their sum = 10 and product = 9
We can easily see that these two numbers are 1 and 9 because 1 + 9 = 10 and 1 x 9 = 9

Therefore, splitting the expression into groups we get
[tex]x^2 + 10x + 9 = x^2 + 1x + 9x + 9\\\\[/tex]

Step 5

Factor:

[tex]x^2 + 1x = x(x+ 1)\\9x + 9 = 9(x + 1)\\\\[/tex]

Therefore
[tex]x^2 + 1x + 9x + 9 = x(x + 1) + 9(x + 1)\\\\[/tex]

Step 6

Factor common term (x + 1) from the expression
[tex]x(x + 1) + 9(x + 1) = (x + 1)(x + 9)[/tex]

Step 7
Putting it all together
Remember we factored out the 2 in step 3 so we got to put it back into the factored expression giving the final factored expression as

[tex]2 (x + 1)(x + 9)[/tex]


Related Questions

What is the slope intercept form of the equation y-5=-1/4(x-12)

Answers

Slope intercept form is y=mx+b.
Your first step would be to distribute the -1/4 to the numbers in the parenthesis.

You would then add the 5 over, giving you your answer:

Y=-1/4x+8

pls solve thank u
100 points for answer

Answers

Hence, the darkened sector covers an area of roughly [tex]10.55 km^2[/tex] as circle's radius is 7 km, and the shaded sector's central angle is 154 degrees .

what is radius ?

The radii of a circle in geometry is the separation between any two points on the circle's circumference. It is frequently used to describe how far apart two points are. One of a circle's most crucial characteristics is its radius, which is taken into account when calculating a circle's circumference, area, and diameter. The distance around a circle that passes through its centre, or its diameter, is equal to half of its radius. Other shapes like spheres, cylindrical, and cones can also be described using the radius. The radius here means the distance from the shape's centre to any point on its perimeter.

given

The following formula must be used to determine a sector's area:

A = (θ/360)[tex]\pi r^2[/tex]

where r is the circle's radius, is pi, or roughly 3.14, and is the sector's centre angle, expressed in degrees.

The circle's radius is 7 km, and the shaded sector's central angle is 154 degrees, according to the provided figure. When these values are added to the formula, we obtain:

[tex]A = (154/360)\pi (7)^2[/tex]

[tex]= 10.55 km^2[/tex]

Hence, the darkened sector covers an area of roughly [tex]10.55 km^2[/tex] as circle's radius is 7 km, and the shaded sector's central angle is 154 degrees .

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The complete question is:-  

154 degree

7 km

Find the area of the shaded sector.

A = __ km2

NEED HELP ASAP PLS AND THX PIX IS ATTACHED

Answers

Sin A Cos A, and Tan A can be found respectively as follows:

1. 41.81°.

2. 44.19 degrees

2. 60 degrees

How to find the angles

The angles can be found by following the rules for right-angled triangles. This can be achieved in the following ways:

1. sin A= opposite/hypotenuse

sin A = 6/9

Now we take the sine inverse:

sin^-1(6/9)

=  41.81°.

2. Cos 45° = Adjacent/hypotenuse

= cos 45° = x/4

x = cos 45° × 4

= 0.707 × 4

= 2.82

cos A = b2 + c2 – a2 ÷ 2bc

2.8² + 4² - a² ÷ 2×2.8×4

23.84 - 2.8² ÷ 22.4

23.84 - 7.84 ÷ 22.4

Cos A = 0.7142

= 44.19 degrees

3. tan A = Opposite/Adjacent

tan 60°  = 4/x

x = 4/tan 60°

x = 4/1.732

= 2.309

Tan A = 4/2.309

= 1.732

= 60 degrees

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Solve the inequality and graph the solution on the line provided.
> ≤ ≥ or
Inequality Notation:
Number Line:
-12 -10
4x + 45 57
-4-2 0 24
Click and drag to plot line.
6
10 12

Answers

The solution of the given inequality is x ≤ 13/4

Since Inequality can be defined as the relation which makes a non-equal comparison between two given functions.

We are given the Inequality  as;

4x + 45 ≤ 57

Solving;

4x + 45 ≤ 57

4x ≤ 57 - 45

4x  ≤ 13

x ≤ 13/4

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A car pulls the emergency hand brake, accelerating at -4.0 m/s2 for 7.5 seconds to a complete and total stop. What was the initial velocity of the car before the brake was pulled?

Answers

The initial velocity of the car before the brake was pulled is 30m/s

What was the initial velocity of the car before the brake was pulled?

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

A car pulls the emergency hand brake, accelerating at -4.0 m/s2 for 7.5 seconds

This means that

Acceleration = -4.0m/s^2

Time = 7.5 seconds

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

Initial velocity = -Acceleration  * Time

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

Initial velocity = 4  * 7.5

Evaluate

Initial velocity = 30

Hence, the initial velocity is 30

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g(x)=2x
h(x)=x^(2)+4
evaluate for g(h(-8))

Answers

The value of the function is 136

How to determine the function

It is important that we note that functions are described as expressions that are used to explain the relationship between two variables.

From the information given, we have that;

g(x)=2x

h(x)=x^(2)+4

To determine the composite function, we would need to substitute the value of h(-8) as x in the function g(x)

Then, we have that;

h(-8) = (-8)^2 + 4

Find the values

h(-8) = 68

Now, substitute the value as x , we have that;

g(h(-8)) = 2(68)

expand the bracket and multiply

g(h(-8)) = 136

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Answer this question soon

Answers

Answer:

CA - 144

AD - 98

ABD - 49

BC - 134

C - unsure

Step-by-step explanation:

5. The population, P, of a city has grown according to the mathematical model P = 50 000(1.15), where t
is the number of years since 2005.
Using a graphing tool or by hand answer the questions below.
a) What was the population of the town in 2005?
I
b) In what year will the population exceed 100 000?

Answers

Answer: Therefore, the population will exceed 100,000 in the year 2005 + 10.73 ≈ 2016.

Step-by-step explanation:   a) The population of the town in 2005 is given by the formula, where t = 0 since 2005 is the starting year:

P = 50,000(1.15)^0 = 50,000

Therefore, the population of the town in 2005 was 50,000.

b) We need to find the value of t when the population P exceeds 100,000:

100,000 = 50,000(1.15)^t

Divide both sides by 50,000:

2 = 1.15^t

Take the natural logarithm of both sides:

ln 2 = ln (1.15^t)

Apply the power rule of logarithms:

ln 2 = t ln 1.15

Divide both sides by ln 1.15:

t = ln 2 / ln 1.15

Using a calculator, we get:

t ≈ 10.73

Which expression is equivalent to 5/4x +33-2+2

Answers

The expression that is equivalent to 5/4x +33-2+2 is 5x + 132/4. Option C

How to determine the value

It is important to note that algebraic expressions are defined as expressions that consists of factors, variables, constants, coefficients and terms.

These expressions are also made up of arithmetic operations.

These operations are listed as;

AdditionBracketParenthesesMultiplicationDivisionSubtraction

From the information given, we have that;

5/4x +33-2+2

Add or subtract the values

5/4x + 33

Find the LCM, we have;

5x + 132/4

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Complete question:

Which expression is equivalent to 5/4x +33-2+2

5x + 132

6x + 132/4

5x + 132/4

6x + 132

What type of conic section is formed when a right, circular cone is intersected by a plane that is parallel to the base of the cone?

Answers

The conic section that is formed when a right, circular cone is intersected by a plane that is parallel to the base of the cone is a circle

Determining type of conic section formed

The summary statement from the question is given as

A plane parallel to the base of a circular cone that intersects the cone.

By definition, a circle is the cross-section that is parallel to the base of a cone

This means that when a cone is cut through the base, the resulting shape is a circle

So, the conic section that is formed when a right, circular cone is intersected by a plane that is parallel to the base of the cone is a circle

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A man drove 14 miles directly east from his home, made a left turn at an intersection, and then traveled 7 miles north to his place of work. If a road was made directly from his home to his place of work, what would its distance be to the nearest tenth of a mile?

Answers

We can use the Pythagorean theorem to find the distance between the man's home and his place of work.

The distance traveled east and the distance traveled north form the two legs of a right triangle, and the distance we want to find is the hypotenuse.

Using the Pythagorean theorem, we have:

distance^2 = (14 miles)^2 + (7 miles)^2
distance^2 = 196 + 49
distance^2 = 245
distance = sqrt(245)
distance = 15.62 miles (rounded to the nearest tenth)

Therefore, the distance between the man's home and his place of work, if a road was made directly between them, would be approximately 15.6 miles.

HELPPPP PLS ILL GVIE BRAINLY 30 POINTS

Answers

the yellow highlighted are the correct answers :)

Jackie, a marine biologist, is tracking migratory patterns of a group of whales. The endpoints
of the whales' current migration route are 9 inches apart on Jackie's chart. If the scale of the
map is 1 inch: 0.6 miles, then what is the actual distance between the whales' starting and
ending points?

Answers

Answer:

1 inch = 0.6 miles

= 9 inches = 0.6 miles*9

= 9 inches = 5.4 miles

Hence, the answer is 5.4 miles.

Please mark me as brainliest...

The data table shows the
numbers of eggs laid by
individual chickens in a year
What is the median number of
eggs laid in a year?
A. 231
B 229
C. 230
D. 234.6

Answers

The median number of eggs laid in a year is 231 from the given data, option A is correct.

The data table shows the numbers of eggs laid by individual chickens in a year.

Now, We can arrange it into ascending order as;

⇒ 222, 229, 229, 231, 234, 235, 262

Since, There are 7 terms

Hence, Median = (7 + 1)/2

= 4th term

= 231

Hence, the median number of eggs laid in a year is 231, option A is correct.

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Type the correct answer in each box.
Nathan has a sculpture in the shape of a pyramid. The height of the sculpture is 3 centimeters less than the side length, x, of its square base. Nathan
uses the formula for the volume of a pyramid to determine the dimensions of the sculpture
V= }ah
Here, a is the side length of the pyramid's square base and h is its height.
If 162 cubic centimeters of clay were used to make the sculpture, the equation x? +
= O can be used to find that the length of
the sculpture's base is
centimeters.

Answers

The sculpture's base length = 9 cm and the height of sculpture is found as 6 cm.

Explain about the pyramid:

The base and apex are joined to form a pyramid. To identify them from the base, the triangular sides are also also referred to as lateral faces. In a pyramid, the apex, which creates the triangle face, is connected to each base edge.

volume of a pyramid = V=1/3 a²h Given volume V = 162 cm³Let 'x' be the side length.Then , (x - 3)  be the height of sculpture.

Put the values and find the length.

162 = 1/3 (x)² (x-3)

162 * (3) =  (x)² (x-3)

486 = x²(x-3)

486 = x³ - 3x²

x³ - 3x² - 486 = 0

(use a graphing tool or calculator equation mode).

x = 9

Thus,

side length of sculpture = 9 cm

height of sculpture = 9 - 3   = 6cm

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Correct question:

Nathan has a sculpture in the shape of a pyramid. The height of the sculpture is 3 centimeters less than the side length,x,of its square base. Nathan uses the formula for the volume of a pyramid to determine the dimesnsioms of the sculpture.

V=1/3 a^2h

Here, a is the side length of the pyramids square base and h is it’s height.

If 162 cubic centimeters of clay were used to make the sculpture, the equation x^3 + _x^2+ _ =0 can be used to find that the length of the sculptures.  base is _ centimeters.

SOLVE THE FOLLOWING INEQUALITY: x^3-5x^2+10 > 0

Answers

________________________________

x³ - 5x² + 10 > 0 = x³ - 5x² + 10 = 0= x² - 5x² + 10 - 10 = 0 - 10= x² - 5x² = - 10 = x² - 5x² = - 4x² - 4x² = - 10= - 4x² = - 10 = - 4x² / - 4 = - 10 / - 4x² = 5 / 2 x = √ 5 / 2

________________________________

Find the surface area of this triangular prism. Be sure to include the correct unit in your answer.

Answers

The surface area of the triangular prism is 1740cm²

What is surface area?

The area occupied by a three-dimensional object by its outer surface is called the surface area.

The surface area of a prism is expressed as;

SA = 2B + ph

where B is the base area

p is the perimeter of the base

h is the height of the prism.

Base area = 1/2 bh

= 1/2 × 10 × 24

= 24×5

= 120 cm²

The perimeter of the base = 24+10+26

= 60cm

height = 25 cm

Therefore the surface area of the prism is

SA = 2 × 120 + 60 × 25

SA = 240+ 1500

SA = 1740 cm²

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a) Close the following accounts. 9

K. Emmanuel

$

2020

$

640

360

2020

800

Feb. 10 Bank Cash

25

200

Feb. 1 15

Sales Sales

J. Amaze

$

$

2020

2020

260 1090

1350

Mar. 12

Returns inwards

Mar4

Sales

18

Bank

Z. Ventour

2020

$

2020

$

May 13

Cash

518

May 10

Purchases

518

FSampath

2020

$

2020

July 14 22

Returns outwards

Bank

$

220

July 3

Purchases Purchases

8

25

Bank

800

1500

830

350

Answers

Answer:

I dont know the answer I dont know  what it is I just needed points bye

Step-by-step explanation:

Pls pls someone one help me with this

Answers

Answer:

Triangle A = scalene

Triangle B = scalene

Triangle C = equilateral

Step-by-step explanation:

scalene triangle = all lengths are different

isosceles triangle = 2 side lengths are the same

equilateral triangle = all 3 side lengths are the same

triangle A: scalene - all sides are different
triangle B: scalene - all sides are different
triangle C: equilateral - all sides are equal
(isoceles is when two sides are equal. the way i remember is “i saw celine two times”)

Help with this pleaseee

Answers

The reduced form of the matrix is [tex]\begin{bmatrix}1 &-\frac{4}{7} &\frac{4}{7} \\0& 11& 79\end{bmatrix}[/tex]

A matrix is a rectangular array of numbers arranged in rows and columns. In linear algebra, matrices can be used to represent linear transformations and solve systems of linear equations.

In the given matrix, we need to perform a row operation to get a 1 in row 1, column 1. Row operations are operations performed on the rows of a matrix to transform it into another matrix that is equivalent in terms of solutions to a system of linear equations.

The three types of row operations are:

Swapping two rows.

Multiplying a row by a non-zero constant.

Adding a multiple of one row to another row.

To perform this row operation, we first multiply row 1 by 12 to get a multiple of 12 in the first column of row 1:

[tex]\begin{bmatrix}84 &-48 &96 \\-12& 7& -13\end{bmatrix}[/tex]

Next, we add row 1 to row 2 multiplied by 2 to get a 0 in column 1 of row 2:

[tex]\begin{bmatrix}84 &-48 &96 \\0& 11& 79\end{bmatrix}[/tex]

Finally, we can divide row 1 by 84 to get a 1 in row 1, column 1:

[tex]\begin{bmatrix}1 &-\frac{4}{7} &\frac{4}{7} \\0& 11& 79\end{bmatrix}[/tex]

Now we have a 1 in row 1, column 1, and the matrix is in row echelon form.

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Simplify with steps. (Write each expression without using the absolute value symbol)
|x+3| if x>5​

Answers

The expression without the absolute value symbol is:

|x + 5| = x + 5, if x > 5

|x - 5| = 0, if x = 5

|x - 5| = 5 - x, if x < 5

Since, An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.com

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

|(x + 3) | if x > 5

This can be written as,

= |x + 3|

Now,

|x + 5| = x + 5, if x > 5

|x - 5| = 0, if x = 5

|x - 5| = 5 - x, if x < 5

Thus,

The expression without the absolute value symbol is:

|x + 5| = x + 5, if x > 5

|x - 5| = 0, if x = 5

|x - 5| = 5 - x, if x < 5

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Eight percent of all college graduates hired by companies stay with the same company for more than five years. The probability, rounded to four decimal places, that in a random sample of 14 such college graduates hired recently by companies, exactly 2 will stay with the same company for more than five years is _?_.

Answers

P(X=2) &= {14\choose 2}(0.08)^2(0.92)^{12} \

&= \frac{14!}{2!(14-2)!}(0.08)^2(0.92)^{12} \

[tex]\sf\implies\:&=\frac{14\times13}{2\times1}(0.08)^2(0.92)^{12}[/tex]

&= 91(0.08)^2(0.92)^{12} \

&\approx \boxed{0.2166

[tex]\begin{align}\huge\colorbox{black}{\textcolor{yellow}{\boxed{\sf{I\: hope\: this\: helps !}}}}\end{align}[/tex]

[tex]\begin{align}\colorbox{black}{\textcolor{white}{\underline{\underline{\sf{Please\: mark\: as\: brillinest !}}}}}\end{align}[/tex]

[tex]\textcolor{lime}{\small\textit{If you have any further questions, feel free to ask!}}[/tex]

[tex]\huge{\bigstar{\underline{\boxed{\sf{\color{red}{Sumit\:Roy}}}}}}\\[/tex]

The average score of 22 students on a math online quiz is 86.3 with a standard deviation of 7.2. The average population score is 83.5. What is the
t-value?

Answers

Based the provided information, the t-value is approximately 1.824.

How do we determine the t-value?

We shall work out the t-value by calculating the difference between the sample mean and the population mean, divided by the standard error of the mean.

We shall use the t-test formula to calculate the t-value:

t = (sample mean - population mean) / (sample standard deviation / [tex]\sqrt(sample size)[/tex])

where:

sample mean = 86.3

population mean = 83.5

sample standard deviation = 7.2

sample size = 22

Plugging in these values, we have:

t = (86.3 - 83.5) / (7.2 / √22)

t = 2.8 / (7.2 / 4.69)

t = 2.8 / 1.535

t ≈ 1.824

Therefore, the t-value is approximately 1.824.

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A 360-ounce bag of rice has a serving size of 7 ounces on its label. How many full servings does the bag contain?

Answers

51 full servings, 360/7= 51.429

Find the missing angle:

Answers

36.

Right angle = 90

90 - 54 = 36.

HELP QUICK!
The owners of the pet sitting business have set aside $96 to purchase chewy toys for dogs, x, and collars for the cats, y. They are pricing the items at two different stores and wondering if there are any combinations of these items that could be purchased at both stores for the same price.



Marco’s Market: The price of a chewy toy for dogs is $2 while the price of a cat collar is $8.

Sonia’s Superstore: The price of a chewy toy for dogs is $4 and the price of a cat collar is $4.



Create an equation to represent the quantities of each item that can be purchased at each store. Then, graph the equations on the coordinate axes with proper labels and scale. Use the graph to find the combination of chewy toys for dogs and cat collars for cats that adds up to the same amount and price at both stores.

Answers

Answer:Let's assume that the number of chewy toys for dogs purchased at Marco's Market is represented by x, and the number of cat collars purchased at Marco's Market is represented by y. Similarly, let's assume that the number of chewy toys for dogs purchased at Sonia's Superstore is represented by a, and the number of cat collars purchased at Sonia's Superstore is represented by b.

The total cost of chewy toys for dogs and cat collars at Marco's Market is given by:

2x + 8y

The total cost of chewy toys for dogs and cat collars at Sonia's Superstore is given by:

4a + 4b

We want to find values of x, y, a, and b such that:

2x + 8y = 4a + 4b

Simplifying the equation, we get:

x + 4y = 2a + b

We also know that the total amount set aside for the purchases is $96. Therefore, we have:

2x + 8y + 4a + 4b = 96

Simplifying the equation, we get:

x + 4y + 2a + b = 48

Now, we can plot the graph of the equation:

x + 4y = 2a + b

To plot the graph, we can rearrange the equation as follows:

4y - b = 2a - x

y = (2a - x + b)/4

We can choose values of x and b, and then calculate the corresponding values of y and a using the equation. For example, let's choose x = 0 and b = 8. Then, we have:

y = (2a - 0 + 8)/4 = (2a + 8)/4 = 0.5a + 2

Similarly, we can choose other values of x and b, and calculate the corresponding values of y and a. We can then plot the points on the graph and join them to get the line representing the equation.

Here is the graph:

Graph

To find the combination of chewy toys for dogs and cat collars for cats that adds up to the same amount and price at both stores, we need to find the point where the line intersects the line representing the equation of the total cost:

x + 4y + 2a + b = 48

We can find this point by solving the two equations simultaneously. However, we can also use the graph to estimate the point. From the graph, we can see that the point of intersection is approximately (12, 6). This means that we can purchase 12 chewy toys for dogs and 6 cat collars at Marco's Market, and 4 chewy toys for dogs and 10 cat collars at Sonia's Superstore, and the total cost would be $48 at both stores.

Step-by-step explanation:

If you want get 60000 in 8 years how much do you need to deposit in the bank today if the account pays an interest rate of 9%

Answers

Answer:

FV = PV x (1 + r)^n

where:

FV = future value

PV = present value (the amount to be deposited today)

r = interest rate per period (in this case, per year)

n = number of periods (in this case, 8 years)

Plugging in the given values, we get:

$60,000 = PV x (1 + 0.09)^8

Simplifying this equation:

PV = $60,000 / (1 + 0.09)^8

PV = $60,000 / 1.999^8

PV = $60,000 / 3.058

PV = $19,602.68

Therefore, the amount that needs to be deposited in the bank today to accumulate $60,000 in 8 years with an interest rate of 9% is $19,602.68.

I hope this helps.

After 8 years, Fabian earned $1430 in simple interest from a CD into which he
initially deposited $5500. What was the annual interest rate of the CD?
A. 0.48%
B. 4.8%
C. 0.325%
D. 3.25%

Answers

Answer:

D. 3.25%

Step-by-step explanation:

The formula for simple interest is:

I = Prt

where I is the interest earned, P is the principal, r is the annual interest rate, and t is the time in years.

We are given that:

I = $1430

P = $5500

t = 8 years

Substituting the values:

$1430 = $5500 * r * 8

Simplifying, we get:

r = $1430 / ($5500 * 8)

r = 0.0325 or 3.25%

Therefore, the annual interest rate of the CD is 3.25%.

Answer: D. 3.25%

There is a straight road between town 4 and town B of length 130 km. Maxi travels from town 4 to town B. Pippa travels from town B to town A. Both travel at a constant speed of 40 km/h. Maxi leaves 30 minutes before Pippa. Work out how far from town A they will be when they pass each other​

Answers

The distance from town A that they will be,  when they will pass each other is  44 4/9 .

How can the distance be calculated?

It should be noted that time traveled in each segment is constant, which implies that in this case the average speed can be regarded as the simple mean of speeds. An in the case whereby the distance traveled in each segment is constant, average speed can be described to be the reciprocal of simple mean .

This can be expressed mathematically as

Average speed = Reciprocal [ 1/40 & 1/50].

Average speed = Reciprocal of (1/40 + 1/50)/2

= Reciprocal of [(5+4)/400]

= 44 4/9 .

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A pet store has 10 ​puppies, including 3 ​poodles, 3 ​terriers, and 4 retrievers. If Rebecka and​ Aaron, in that​ order, each select one puppy at random without​ replacement, find the probability that Aaron selects a​ retriever, given that Rebecka selects a poodle.

Answers

P(both poodle) = (3/10)(3/10) = 9/100

Answer: The probability of choosing the same puppy is 9/100

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