Rewrite the expression as a product of four linear factors:
(x² – 3x)² – 14(x² – 3x) + 40
-
Answer:
Submit Answer

Answers

Answer 1

[tex]~~(x^2 -3x)^2 -14(x^2 -3x) +40\\\\=u^2-14u+40~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~;[\text{Let}~ u = x^2 -3x]\\\\=u^2 - 10u-4u +40\\\\=u(u-10)-4(u-10)\\\\=(u-4)(u-10)\\\\=(x^2 -3x -4)(x^2 -3x -10)~~~~~~~~~~~~~;[\text{Substitute back}~ u = x^2 -3x]\\\\=(x^2 -4x+x-4)(x^2 -5x+2x-10)\\\\=\textbf{[}x(x-4) +(x-4) \textbf{]} \textbf{[}x(x-5) +2(x-5) \textbf{]} \\\\=(x+1)(x-4)(x+2)(x-5)[/tex]


Related Questions

is f(x)=x^(2)-4 and f(x)=3(2-x) functions?

Answers

Answer:

Yes

Step-by-step explanation:

There is only one output value for each input value, which is the definition of a function.

I am not divisible by 2,3,5 or 7. My two digits are not the same, but they are both squares. What two numbers could I be?
I NEED HELP FASTTT

Answers

Answer:

19 is suitable no in which 1 is square of itself and 9 is of 3

The two possible numbers are 19 and 41
The only square single digits are 1, 4 and 9
Possible two digit numbers are:
14 - divisible by 2
19
41
49 - divisible by 7
91 - divisible by 7
94 - divisible by 2

What is the derivative of the function f(x)= 4cos2x + logx + x?

Answers

Answer:

[tex]f'(x)=-8\sin2x+\frac{1}{x} +1[/tex]

Step-by-step explanation:

I assume by [tex]\log(x)[/tex], the base is [tex]e[/tex], so let [tex]\log_e(x)=\ln(x)[/tex]:

[tex]\displaystyle f(x)=4\cos2x+\ln x+x\\\\f'(x)=\frac{d}{dx}(4\cos2x+\ln x + x)\\\\f'(x)=\frac{d}{dx}(4\cos2x)+\frac{d}{dx}(\ln x)+\frac{d}{dx}(x)\\\\f'(x)=-8\sin2x+\frac{1}{x}+1[/tex]

Remember that by the chain rule, to find the derivative of [tex]4\cos2x[/tex], you must find the derivative of the inside, which is [tex]\displaystyle \frac{d}{dx}(2x)=2[/tex], and multiply it by the outside derivative. Recall that [tex]\displaystyle \frac{d}{dx}\cos(x)=-\sin(x)[/tex], so replace [tex]-\sin(x)[/tex] with [tex]-4\sin(2x)[/tex], and multiply by 2 to get [tex]-8\sin(2x)[/tex] as your derivative.

Also remember that [tex]\displaystyle \frac{d}{dx}\ln(x)=\frac{1}{x}[/tex], one of the more basic derivatives.

The derivative of the function f(x)= 4cos2x + logx + x is f'(x)=-8sin2x+1/x+1.

What is Differential equation?

A differential equation is an equation that contains one or more functions with its derivatives.

The given function is four times of cos2x plus logx plus x.

f(x)= 4cos2x + logx + x

We need to find the derivative of it f'(x)

d/dxf(x)=d/dx(4cos2x)+d/dx(logx)+d/dx(x)

f'(x)=4d/dx(cos2x)+d/dx(logx)+d/dx(x)

We know that

d/dx(cosx)=-sinx

d/dx(logx)=1/x

d/dx(x)=1

Apply in above equation

f'(x)=4d/dx(cos2x)+d/dx(logx)+d/dx(x)

f'(x)=4.2(-sin2x)+1/x+1

f'(x)=-8sin2x+1/x+1

Hence the derivative of function f(x)= 4cos2x + logx + x is f'(x)=-8sin2x+1/x+1.

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Paul and Krystal spent 1 1/2 hours at the pool

Answers

Answer:

Paul and Krystal spent 13 hours at the pool

Step-by-step explanation:

I Thank

Describe how the product of 0.08 x 8 would look on a one hundred-square grid.
The product would have ____
squares shaded out of 100.

Answers

The product would have 64 squares shaded out of 100.

0.08 x 8 = 64 which means, 64 would be shaded. Hope this helps!

Which of the following rules is the composition of a dilation of scale factor 2, then a translation of three units to the right? a) (2x+3,y) b) (2x+6, 2y) c) (2x +3, 2y) d) (2x+6, y)​

Answers

Answer:

The answer is C: (2x +3, 2y)

Step-by-step explanation:

When applying the dilation of a scale factor of 2, you have to apply it to both the x and y coordinate, which means you are multiplying the coordinates by 2.

Let's assume the coordinates you start with are (x, y). Apply the dilation of 2.

(x, y) -----> (2x, 2y)

Now you are moving the figure right. When moving right, this only effects the x coordinate since the x axis moves left and right. Moving right indicates you will add the number of units translated to the x coordinate.

Translation 2 units right:

(2x, 2y) -----> (2x +3, 2y)

What is the probability of rolling a 6 sided die 4 times and getting an even number all 4 times?

Answers

The probability is 1/2.

Explanation:

There are three even numbers in a six sided die, so the automatic fraction form would be 3/6, with 6 being the total number of numbers on the die. Reducing this to simplest form would give you 1/2, or 50%.

Solve for x in the triangle. Round your answer to the nearest tenth.
X
5
22°

Answers

x is 5.4 because you find the missing angle measure, which is 68 because 180-90-22 is 68, then you use sine of 68 to get 5/x then isolate x and put into calc

Ryder used front-end estimation to estimate the product of (–24.98)(–1.29). What was his estimate?
–32
–20
20
32

Answers

Answer:

  (d)  32

Step-by-step explanation:

An estimate is a value that is intended to approximate the result of a detailed calculation. Often, the target is an estimate that is within about 10% of the actual value. A "rough order of magnitude" (ROM) estimate is intended to be within about a factor of 3 of the actual value.

__

An estimate is generally made by using a reduced number of significant figures in the calculations. Often, the numbers used will be rounded to 1 or 2 significant figures. The math is often accomplished mentally, so methods of mental arithmetic are often used to simplify the calculations.

rounded values

We are asked for an estimate of the product (-24.98)(-1.29). We notice there are an even number of minus signs, so the result will be positive. The values are (25)(1.3) when rounded to 2 significant figures.

Along with the rounded values, it is often useful to make note of the direction and magnitude of the errors due to rounding. Here, we have rounded both numbers up. The number 25 is high by 0.02, and the number 1.3 is also high by 0.01. These can be used to estimate the error in the estimated value.

the product

The desired product can be computed several different ways. Either or both of the numbers 25 and 1.3 can be represented in a fashion that facilitates the (mental) arithmetic. Here are three (3) methods that could be used.

(25)(1.3) = 25(1 +0.3) = 25 +7.5 = 32.5 (a little high, so we can choose to round down to 32)(25)(1.3) = (100/4)(1.3) = 130/4 = 65/2 ≈ 64/2 = 32 (again, rounding down because we know 32.5 is too high)(25)(1.3) = 2.5(13) = 2(13) +13/2 = 26 +6.5 = 32.5 ≈ 32

Ryder's estimate was 32.

_____

Additional comment

The actual product is ...

  (25 -0.02)(1.3 -0.01) = (25)(1.3) -0.02(1.3) -0.01(25) +(0.02)(0.01).

As a first approximation of the error in the product 32.5, we can sum the middle two terms:

  -0.02(1.3) and -0.01(25) = -0.026-0.25 = -0.276.

Then the first refinement of the estimate will give us ...

  32.500 -0.276 = 32.224

The actual value is obtained by adding the final error term:

  32.224 +0.0002 = 32.2242 . . . . the actual product with estimate errors resolved.

Answer:

yo

Step-by-step explanation:

its C, or 20

edge

ur welcome

If a prism is placed into a basin of water (density: 32.5 lbs/ft^3 ) displaces 3.3 lbs of water, what is the volume of the water that was displaced (in cubic inches)?
Please help

Answers

The volume of water that was displaced is 0. 000019 cubic meters.

What is volume?

Volume is known to be the amount of space or capacity occupied by a three-dimensional solid shape.

It is denoted in cubic units.

How to calculate the volume

The formula for calculating volume is;

Volume = mass ÷ density

Given that mass = 3. 3 Ibs and density = 32. 5Ibs/ ft∧3

Volume = 3. 3 ÷ 32. 5 = 0. 10 Ibs

How to covert Ibs to cubic meters

Ibs = 0. 00019 m∧3 (cubic meters)

Then, 0. 10 Ibs = 0. 00019 × 0.10 ÷ 1 = 0. 000019 cubic meters.

Therefore, the volume of the water displaced is 0.000019 cubic meters.

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An arithmetic sequence has this recursive formula:

What is the explicit formula for this sequence?

Answers

Answer:

C

Step-by-step explanation:

the explicit formula for an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

from the recursive formula in the form

[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] + d

given

[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] - 7

with d = - 7 and a₁ = 4 , then explicit formula is

[tex]a_{n}[/tex] = 4 + (n - 1)(- 7)

Between which two tenths is the decimal approximation of √7?





Answers

Answer:

2.6 and 2.7

Step-by-step explanation:

The actual square root of 7 is 2.64 and that is between 2.6 and 2.7.

6. Solve the equation: h/9 = 7.

A. h = -63
B. h=63
C. h=127
D. h = 7/g

Answers

Answer:

B) h=63

Step-by-step explanation:

Multiply both sides by 9.

h/*9=9*7

Simplify

h=63

[tex]\bf{\dfrac{h}{9}=7 \ \ \to \ \ \ Exercise \ to \ solve }[/tex]

Multiply both sides by 9.

h = 7 × 9

Multiply 7 and 9 to get 63.

h = 63 ===> Answer

Therefore, the correct option is "B".

[tex]\red{\boxed{\green{\boxed{\boldsymbol{\purple{Pisces04}}}}}}[/tex]

Submitting a Bid
You want to bid on a project for the pool shown. The project involves ordering and installing the brown tile that borders the pool, and ordering a custom-made tarp to cover the surface of the pool. In the figure, each grid square represents 1 square foot.
You pay $5 per linear foot for the tile.
You pay $4 per square foot for the tarp
It takes about 15 min to install each foot of the tile
A) estimate the total cost for the tile and the tarp


Answers

Answer:

5,125

Step-by-step explanation:

The equation of line LM is y = 5x + 4. Write an equation of a line perpendicular to line LM in slope-intercept form that contains point (−3, 2).

Answers

y=-1/5x+b
When the line is Perpendicular, you make it the opposite reciprocal.

Now you want to find b so plug in the coordinate provided.
2=-1/5(-3)+b 2 is y -3 is x
2=0.6+b

Subtract 0.6 from both sides
1.4=b

y=-1/5x+1.4

Matthew is grocery shopping for a taco Tuesday Bloc Party he is expecting 60 people including himself, and for each person to have 1 soft and 1 crispy taco. Soft tortillas coke in packs of 10. Crispy taco shells come in packs of 12. How many packages of each tortilla type does Mathew need to feed everyone?

Answers

The number of each tortilla type that Mathew would need to feed everyone is = 6 packages of Soft tortillas and 5 packages of Crispy taco shells.

Calculation of number of tortilla

The number of people Matthew is expecting including himself = 60

The Soft tortillas coke appear = 10/pack

The Crispy taco shells appear = 12/pack

Since each person is to get 1 soft and 1 crispy taco, the number of tortilla type that Mathew would need to feed everyone is

= 60/10 = 6 packages of Soft tortillas

= 60/12 = 5 packages of Crispy taco shells

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Find the slope and the y-intercept of the following linear equation. 5. 3x + 2y = 14​

Answers

The slope and y-intercept of the equation are - 3 / 2 and 7 respectively.

How to find slope and y-intercept?

The slope and y-intercept of an equation can be easily found using slope intercept equation.

y = mx + b

where

m = slopeb = y-intercept

Therefore,

3x + 2y = 14

2y = -3x + 14

y = -3 / 2 x + 7

Therefore,

slope = - 3 / 2

y-intercept = 7

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Sara made hot chocolate mix to give to
her neighbors. She mixed 4 cups of sugar
with 2 cups of cocoa. Then she poured 12/2
cups of the mix in each jar. How many jars
did she fill?

Answers

4 cups + 2 cups = 6 cups

we can simplify 12/2 by dividing, giving us 6 cups.

(i’m not sure if you were given the amount of cups needed to fill a jar, but please comment and i’ll answer for you)

Find the slope of the line.

Answers

Answer:

2

Step-by-step explanation:

we know the line goes through the origin, so we have point (0,0). next, find another point the line goes through. for example, point (2,4)

the slope formula for points (x1, y1) and (x2, y2) is (y2 - y1) / (x2 - x1). plug in the 2 points to get (4-0)/(2-0) = 4/2 = 2

Urgent! Brainliest to whoever solves it
Quadrilateral HGFJ is a rhombus

Answers

Answer:

16cm and 48 degrees

Step-by-step explanation:

3z+35=47 solve
help, i need answer

Answers

Answer:

z=4

Step-by-step explanation:

subtract 47-35

3z=12

divide both sides by 3

z=4

please help i need to turn this in

Answers

Answer:

a) -3

b) 9

c) -3

Step-by-step explanation:

a)

[tex]2^5 * 2^{-8} = 2^a[/tex]

In cases where we have a multiplication with exponents we keep the integer as it is and we add the exponents. 5 + -8 = -3. Therefore a is 3.

b)

[tex]\frac{4^7}{4^-{2}} = 4^b[/tex]

In cases when we have a division with exponents we keep the integers as it is and we subtract the exponents. 7 - (-2) = 7 + 2 = 9. Therefore, b is 9

c)

[tex]\frac{7^9}{7^c} = 7^{12}[/tex]

We are dividing again however we are finding the denominator.

9 - (c) = 12

Subtract from both sides: -c = 3, To make c positive we just make the value negative, c = -3. Therefore c is -3

which equation represents circle n? (17 points & will mark branliest)

Answers

Answer:

c. (x+7)^2+(y-6)^2=50

Step-by-step explanation:

The equation of a circle is; (x+7)²+(y-6)² = 50

What is circle?

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.

The points on the circle are L(-2, 11) and centre is N(-7, 6)

Find the radius,

D = √(-7+2)²+(6-11))²

D = √25+25

D = √50

We know that, the equation of a circle is given by,

( x − a )² + ( y − b )² = r² , where ( a , b ) represents the centre of the circle,

Here, centre is N(-7, 6)

Therefore, the equation of a circle is;

(x+7)²+(y-6)² = 50

Hence, the required equation is (x+7)²+(y-6)² = 50

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PLEASE HELP ME WITH THIS!!!

Answers

Answer:

68 inches

Step-by-step explanation:

y = x + 2

x = 66

y = 66 + 2

y = 68

The box is 450 square. The length is 10 inches and the width is 5 inches. What is the height of the box

Answers

Answer:

9 inches

Step-by-step explanation:

I assume you mean the volume of the box is 450.

In that case, to figure out for the volume we multiply 10 by 5. This gives us 50.

450/50=9

The height of the box is 9 inches

Give brainliest please!

hope this helps :)

XY and BD are parallel lines
X is a point on AB and C is a point on BD.
XB = XC
a) Complete this sentence.
Angle XBC = 55° because = ?

b) Work out angle BXC.
Give a reason for each angle you work out.

Answers

Answer:

a) they are corresponding angles

b) B=55° (proven)

C=55 (Angles opposite equal sides)

B+C+X=180° ( sum of angles of a triangle)

55°+55°X=180

110°+X=180°

X=180°-110°

X=70°

Find the volume of the prism.
9km 8km 6km

Answers

The correct answer is option B which is the volume of the prism is 216 km³.

What is the volume of the prism?

A prism is a three-dimensional solid with a triangular base called a triangular prism. The volume of the triangular prism is equal to the product of the area of the base and the height of the prism.

The volume of the prism will be calculated by using the formula below:-

V  =  Area of the base   x   Height

Since the base is a right-angle triangle so we will calculate the area of the right-angle triangle.

V  =  Area of the triangle  x  Height

V  =  ( 1/2 ) x 8 x 6 x ( 9 )

V  =  216 km²

Therefore the correct answer is option B which is the volume of the prism is 216 km³.

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Why is y = 63?? Isn’t (x-5)+51+(y-6)=180??

Answers

Answer:

coz it is

Step-by-step explanation:

the angle is 57° , so y is 63 as 63-6 = 57

4gal 2qt - 3gal 3qt=
I need help with this one, it's just subtracting as is. Thank you

Answers

Answer:

= .75 gallons or 3 quarts

Step-by-step explanation:

Known

1 gallon = 4 quarts

Problem:

4 gallons 2 quarts - 3 gallons 3 quarts

⇒ 2 quarts: 0.5 gallons

⇒ 3 quarts: 0.75 gallons

Add on both sides

4 + 0.5 = 4.5 gallons

3 + 0.75 = 3.75 gallons

This leaves the equation at:

4.5 gallons - 3.75 gallons

This equals 3 quarts or 0.75 gallons.

Find the missing side of this right
triangle.
X

28
[?]
X =1
Enter the number that belongs in the green box.

Answers

Applying the Pythagorean theorem, the missing side of the right triangle is: √788.

What is the Pythagorean Theorem?

To find the hypotenuse (c) of a right triangle, having two other legs a and b, the Pythagorean theorem states that, c = √(a² + b²).

Given the following:

c = xa = 2b = 28

Plug in the values

x = √(2² + 28²)

x = √788

Missing side is: √788.

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