Can some one help explain this

Can Some One Help Explain This

Answers

Answer 1

Answer:

[tex]4( {x}^{2} - 1) - ( {x}^{2} - 8x - 5)[/tex]

[tex]4 {x}^{2} - 4 - {x}^{2} + 8x + 5[/tex]

[tex]3 {x}^{2} + 8x + 1[/tex]

Answer 2
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Related Questions

What is the scale factor of this dilation?​

Answers

Answer:

the factor from 3 to 5 is

1 2/3

Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

Step-by-step explanation:

-3x - 5 = 16

add 5 to both sides of the equation

-3x = 21

divide both sides by -3

x = -7

---------------------

-4(y - 2) = 12

distribute the -4 to everything in the parentheses

-4y + 8 = 12

subtract 8 from both sides of the equation

-4y = 4

divide both sides of the equation by -4

y = -1

what is meaning of volume​

Answers

Step-by-step explanation:

Volume is the measure of the capacity that an object holds. For example, if a cup can hold 100 ml of water up to the brim, its volume is said to be 100 ml. Volume can also be defined as the amount of space occupied by a 3-dimensional object or solid shape.

Answer:

the amount of space that a substance or object occupies.

basically the volume of a container, like space in a container.

4^3 x4^5
A.16^8
B.16x15
C.4^15
D.4^8

Answers

the answer is in the picture

A 16^8 is the answer to your question hope this helps

Determine whether each expression represents the statement divide the sum 15 and 6 by the difference of 10 and 3.

Answers

Answer:

[tex]\frac{15+6}{10-3}[/tex]

Step-by-step explanation:

Sum of 15 and 6 = 15 + 6

Difference of 10 and 3 = 10 - 3

So, the expression is

[tex]\frac {15 + 6}{10-3}[/tex]

This is the required expression.

I need help with this​

Answers

Answer:

A. w+2

Step-by-step explanation:

(w²+2w)/ w =

w(w+2)/w = w+2

Answer:

a) w+2

Step-by-step explanation:

A=w^2+2w

width is w

let's consider length is x

area=length×width

so

[tex] {w}^{2} + 2w = xw[/tex]

[tex]x = \frac{ {w}^{2} + 2w}{w} = w + 2[/tex]

Please help me with this im pretty confused​

Answers

Answer:

11

Step-by-step explanation:

sqrt(121)

What number times itself gives 121

11*11 = 121

-11 * -11 = 121

Answer:

the square root of 121 is 11

which is the second option

The diagram shows a sector OAPB of a circle, centre O.
AB is a chord of the circle.
OA = OB = 5.4 cm.
Angle AOB = 72°

Calculate the area of the shaded segment APB.
Give your answer correct to 3 significant figures.

Answers

Answer:

4.44 cm²

Step-by-step explanation:

If the diagram attached below is required to complete the question,

Applying,

Area of the shaded segment(A) = Area of the sector- area of the triangle

A = (πr²∅/360)-(r²sin∅/)2................ Equation 1

Where r = radius of the circle, ∅ = angle at the center of the circle,π = pie

From the question,

Given: r = 5.4 cm, ∅ = 72°

Constant: π = 3.14

Substitute these values into equation 1

A = (3.14×5.4²×72/360)-(5.4²/2×sin72)

A = 18.31-13.87

A = 4.44 cm²

The volume of a sphere is 5,572.45 ft To the nearest foot what is the radius of the​ sphere? Use 3.14 for .

Answers

Answer: [tex]11\ ft[/tex]

Step-by-step explanation:

Given

The volume of a sphere is [tex]5572.45\ ft^3[/tex]

The volume of sphere with radius r is given by

[tex]\Rightarrow \dfrac{4\pi r^3}{3}[/tex]

Insert the values

[tex]\Rightarrow V=\dfrac{4\pi }{3}\times r^3\\\\\Rightarrow 5572.45=\dfrac{4\pi }{3}\times r^3\\\\\Rightarrow r^3=\dfrac{5572.45\times 3}{4\pi }\\\\\Rightarrow r^3=1330.992\\\\\Rightarrow r=10.97\approx 11\ ft[/tex]

Therefore, the radius is [tex]11\ ft[/tex]

Differentiate with respect to t
Assume x = x(t)
Assume y = y(t)
Assume z = z(t)

x^2 - y^3 + z^4 = 1

Answers

Answer:

[tex]\displaystyle 2x\frac{dx}{dt}-3y^2\frac{dy}{dt}+4z^3\frac{dz}{dt}=0[/tex]

Step-by-step explanation:

We want to differentiate the equation:

[tex]x^2-y^3+z^4=1[/tex]

With respect to t, where x, y, and z are functions of t.

So:

[tex]\displaystyle \frac{d}{dt}\left[x^2-y^3+z^4\right]=\frac{d}{dt}\left[1\right][/tex]

Implicitly differentiate on the left. On the right, the derivative of a constant is simply zero. Hence:

[tex]\displaystyle 2x\frac{dx}{dt}-3y^2\frac{dy}{dt}+4z^3\frac{dz}{dt}=0[/tex]

What is the value of z?
A.35 B.25 C.70 D.140

Answers

Answer:A

Step-by-step explanation:

Answer:

D is the correct answer or that question

Find the value of cos
I rounded to the nearest hundredth, if necessary.

Answers

Answer:

cos I= 3/5

Step-by-step explanation:

May someone solve and give explanation

Answers

Answer:

x = 15.7945

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA[Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

Step 1: Define

Identify variables

Angle θ = 33°

Opposite Leg = x

Hypotenuse = 29

Step 2: Find Angle

Substitute in variables [sine]:                                                                           sin33° = x/29[Multiplication Property of Equality] Multiply 29 on both sides:                    29sin33° = xRewrite:                                                                                                             x = 29sin33°Evaluate:                                                                                                           x = 15.7945

Which of the following transformations
carry this regular polygon onto itself?

Answers

Each of the five lines of symmetry can be used to map the pentagon to itself in reflection.

Which transformation will carry a regular Pentagon onto itself?

A polygon can change without changing its shape when it undergoes a transformation. Examples include rotation, reflection, and translation. A figure's translation is a change in position that necessitates knowledge of both the direction and the distance. The picture is the final shape that emerges from a transformation.

Five lines of symmetry make up a regular pentagon. Each of the five lines of symmetry can be used to map the pentagon to itself in reflection. Rotate the point 144 degrees in order to convert (0, -2). As a result, the 144° transformation translates the standard pentagon with the coordinates (0, -2) onto itself.

Putting a point, line, or other shape on top of a line. A regular polygon needs to be reflected over a symmetry line in order to map onto itself.

Therefore, the correct answer is option c) Reflection across L.

To learn more about transformation refer to:

https://brainly.com/question/29788009

#SPJ1

Find the area of the figure below.
A. 288.62
B. 266.22
C. 186.66
D. 236.6

Answers

Answer:

A

Step-by-step explanation:

hope this helps

A book store offers a sale on a new book. The sale is "buy two of the books and get the third book free." Tommy pays $26 for three of the books. What is the average amount of money that Tommy saved on each of his three books due to the sale? Round to the nearest cent.

Answers

Answer:

Salvo en cada library 4.33

Using the properties of equality to solve the equation -3x - 9 = -21, you would

add 9 and then divide by -3
add 9 and then multiply by -3
subtract 9 and then divide by -3
subtract 9 and then multiply by -3 ?

Answers

Add 9 and divide by -3

the difference of place values of the digit 3 in 53,230​

Answers

Mark Brainliest please

Answer:

Ones is place value and 3 is the value.

Step-by-step explanation:
5 ten thousand
4 thousands
2 hundreds
6 tens
3 ones

I need help with this one

Answers

Answer:

5

Step-by-step explanation:

584,772 rounds to 600,000

Answer: 5

Explanation: because since the 2nd number is bigger then 5 it gets rounded up and if add 1 to 5 it’s 6.
Hope I explained it to your understanding sorry.

Which set best represents the positive integers?
O A. {1, 2, 3, 4, ...)
OB. {0, 1, 2, 3, 4, ...)
O C. {..., -4, -3, -2, -1}
D. {..., -3, -2,-1, 0, 1, 2, 3, ...)-

Answers

Answer:

A

Step-by-step explanation:

The positive integers are numbers that start at 1 and go on towards the right: are natural numbers 1,2,3,4,5,6,7,...

Which equation is correct?
please help me :((

Answers

Answer:

sin x° = opposite ÷ hypotenuse

Step-by-step explanation:

Cosine is represented by the expression adjacent ÷ opposite and sine is represented by opposite ÷ hypotenuse. Only the fourth option lines up with the functions defined above.

If you are having trouble remembering the ratios for each trig function, you can use the acronym SohCahToa. This stands for:

S - sine

o - opposite

h- hypotenuse

C - cosine

a - adjacent

h - hypotenuse

T - tangent

o - opposite

a - adjacent


Find the area of the circle with a circumference of
30
π
. Use 3.14 for
π
. Round to the nearest hundredth.

Area in in decimal form: ______

Options:

Answers

Answer:

706.50 mm^2

Step-by-step explanation:

The formula to find the circumference is 2πr (r : radius)

if the circumference is 30π the the radius is = 15

to find the area we use the following formula :

π*r^2

r = 15 and π is given as 3.14

(3.14)*15^2 = 706.50 mm^2

Me ayudan Porfavor!!!

Answers

110ft²

Area of figure=(10×8)+(1/2×6×8)

=80+24

=112 ft²

=110 ft² (to nearest tenth)

Ill mark you brainlist plz help if you put something random I will report you! I

Answers

Answer:

4

Because the second number (y) is 4 on the grid. It rises to 4.

The function g(x) is defined by the equation g(x) = -3x² + x - 1.
Which is the value of g(1)?

Answers

Answer:

-3

Step-by-step explanation:

g(1) = -3x² + x - 1

      = -3([tex]1^{2}[/tex]) + 1 -1

      = -3(1) + 1 - 1

      = -3 +1 -1

g(1) = -3

Just put the 1 everywhere you see an x.

Solve

QUESTION 6 · 1 POINT
It takes George 16 minutes to sew one pillowcase. If he sews 6 pillowcases, how many minutes will
he have spent sewing? Do not include any units in your answer.

Answers

Answer: The answer is 96 minutes (or 1 hr 36 minutes)

Step-by-step explanation:

Since it takes George 16 minutes to sew one pillowcase, it would take him 96 minutes/1 hr 36 minutes to sew 6 pillowcases (16x6 or 16+16+16+16+16+16/6+6+6+6+6+6+6+6+6+6+6+6+6+6+6+6)

It should be 96 . May be wrong but I am pretty postive!

The temperature inside the freezer is −10°C and the temperature of the room is 32°C. How much higher is the temperature of the room than the temperature inside the freezer?

Answers

Answer:

42°C

Step-by-step explanation:

32-(-10) =

32 + 10 = 42

Minus a negative makes a positive

First one: 54 < -9c solve for c
Second one: 49> -7a solve for a

Answers

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Use the distributive property and combine like terms to write an equivalent expression: 5(3x + 2) - 8(x +1)

Answers

Answer:

7x + 8

Step-by-step explanation:

15x + 10 - 8x + 8

combine like terms

7x + 8

5(3x+2)-8(x+1)
= 15x + 10 - 8x - 8 (open parenthesis. first one multiple each term by 5. second one, multiply each term by -8)
= 7x + 2 (subtract like terms)

Ashima has a Cumulative or Recurring Deposit Account in a bank for 5 years at 9% p.A. At the time of maturity, she gets 51,607.50. Find the monthly instalment.

Answers

Answer:

Monthly deposit= $684.23

Step-by-step explanation:

Giving the following information:

Number of periods= 5*12= 60 months

Interest rate= (0.09/12)= 0.0075

Future value= $51,607.5

To calculate the monthly deposit, we need to use the following formula:

FV= {A*[(1+i)^n-1]}/i

A= monthly deposit

Isolating A:

A= (FV*i)/{[(1+i)^n]-1}

A= (51,607.5*0.0075) / [(1.0075^60) - 1]

A= $684.23

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