What is the sum of 7z/x^2 - 4

What Is The Sum Of 7z/x^2 - 4

Answers

Answer 1

Answer:

9x-4 / (x²-4)

Step-by-step explanation:

common denominator is 'x²-4' which is (x-2)(x+2)

the term '7x' already has that denominator but 2/x+2 becomes 2(x-2)/(x²-4)

now you can add 7x to 2(x-2) which is 7x + 2x - 4 or 9x-4 and

your denominator remains as 'x²-4'


Related Questions

If p+q has a value of 12/5, and has a value of 4/5, what is the value of q? A. 5/8 B. 8/5 C. 1/3 D. 3/2 step-by-step

Answers

Answer:

Option B

Step-by-step explanation:

It's given that p + q has a value of [tex]\frac{12}{5}[/tex]

So the equation representing the relation will be,

p + q = [tex]\frac{12}{5}[/tex] --------(1)

Value of p is [tex]\frac{4}{5}[/tex]

p = [tex]\frac{4}{5}[/tex]

By substituting the value of p in the equation (1),

[tex]\frac{4}{5}+q=\frac{12}{5}[/tex]

q = [tex]\frac{12}{5}-\frac{4}{5}[/tex]

q = [tex]\frac{8}{5}[/tex]

Therefore, Option B will be the correct option.

PLEASE HELP I WILL MARK BRAINLIEST!!! :)

Answers

Answer:

1.c

Step-by-step explanation:

please click the heart and rate excellent and brainleist to☺️☺️

Critique the reasoning of others. Sally states that the equation g(x) = x2 + 3x − 10 represents a quadratic function that is the product of the expressions that define the two linear functions a(x) = x + 2 and b(x) = x − 5. Is Sally correct? Explain.

Answers

Answer:

Step-by-step explanation:

No, not quite. She's close.

The middle term (often called the linear term) is + which means that the absolute value of the factors must be plus.

(x + 5)(x - 3) is what should should think.

x + 5 = 0

x = - 5

x + 2 = 0

x = - 2

(x + 5)(x - 2)

x^2 - 2x + 5x - 10

x^2 + 3x - 10

A helicopter flies from the airport on a course with a bearing of 21 degrees. After flying for 99 ​miles, the helicopter flies due east for some time. The helicopter flies back to the airport with a bearing of 227 degrees. How far did the helicopter fly on the final leg of its​ journey?

Answers

Answer:

Step-by-step explanation:

From the question we are told that:

Initial bearing [tex]\angle _1=21 \textdegree[/tex]

Initial distance [tex]d_1=99miles[/tex]

Final bearing [tex]\angle _2=227 \textdegree[/tex]

Let [tex]\triangle OAB[/tex] be the perimeter travailed

[tex]\angle OAB=90+21=111 \textdegree\\\angle ABO=270-227=43 \textdegree[/tex]

 

Generally the equation for OB using sine rule is mathematically given by

[tex]OB=99*\frac{sin111}{sin43}[/tex]

[tex]OB=135.52miles[/tex]

Therefore the helicopter flight on the final leg of its​ journey is

[tex]OB=135.52miles[/tex]

Manny and james and idris equally shared 1/2 of a pie. which fraction of the whole pie did each of them receive? GIVEING BRAINLIEST​

Answers

Answer:

1/6 of whole pie

Step-by-step explanation:

Half a pie divided by three pie eaters is 1/6 pie each.

Answer:

0.16

Step-by-step explanation:

1/3 ÷ by 3 djsjsjjsjssj

Find the surface area of the following figure below. Use 3.14 for pi

Answers

Question:

Find the surface area of the following figure below. Use 3.14 for pi

Answer:

9

Step-by-step explanation:

The circle has the same value of the side which is 3 so the length and width is 3 too. So the formal is L x W = Area. So this means 3 x 3 = 9

-10x - 2 = -12
have to show work

Answers

Answer:

x=1

Step-by-step explanation:

-10x-2=-12

-10x=-10

x=-10/-10=1

The picture shows the step by step

The answer is x =1

WILL MARK BRAINLIEST.

Answers

Answer:

1. Proportional

2. Not proportional

3. Proportional

Step-by-step explanation:

You can tell because the line is straight, which shows how the graph is proportional. Hope this helps!

Pls help
Pls help
Pls help

Answers

Answer:

600ft²

Step-by-step explanation:

Oh boy, this is gonna be a long one, so proceed with caution:

So we're gonna start with the one to the very left, we can split this into three different rectangles:

So we got the length of the bottom minus the length we don't want there because we're doing the big rectangle:

35 - 10 = 25

25 x 20 = 500

So we're just gonna keep that on a back burner, cause now we gotta do the two smaller ones:

So we got the measure from the one side, but we gotta subtract the 10 from the other side:

20 - 10 = 10

10 x 10 = 100

Now we gotta add that all up:

500 + 100 = 600

So the area of the first shape is 600ft²

I gotta go, but hope this helps a little bit

On a coordinate grid, a trapezoid has vertices at (−6, 9), (−6, 6), (3, −9), and (3, 12). Each square on the grid represents 1 square foot. Explain how to find the area of the trapezoid.

Answers

Answer:

The area of the trapezoid is 108 square feet

Step-by-step explanation:

The given vertices of the trapezoid are;

(-6, 9), (-6, 6), (3, -9, and (3, 12)

Let the letters A, B, C, and D represent the vertices of the trapezoid, we have;

A(-6, 9), B(-6, 6), C(3, -9) and D(3, 12)

The drawing of the trapezoid on the coordinate plane created with MS Excel is attached

The area of a trapezoid, [tex]A_T[/tex] = (a + b)×h/2

Where;

'a', and 'b' = The length of the bases (parallel sides)

h = The height of the trapezoid (The distance between the bases)

Let 'a' represent the length of the long base CD and let 'b' represent the length of the short base AB

a = √((-9 - 12)² + (3 - 3)²) = 21

∴ a = 21 feet

Similarly, we have;

b = √((9 - 6)² + (-6 - (-6))² = 3

The height, h = The distance between AB and CD = AE

We note that sides AB and CD are parallel to the y-axis, therefore, the height which is the perpendicular distance to the between AB and CD will be parallel to the x-axis

Therefore, the t-coordinates of the points A and E are both equal to 9 and the length of AE = √((3 - (-6))² + (9 - 9)²) = 9

The height of the trapezoid, AE = 9 feet

∴ The area of the trapezoid, A = (21 + 3) × 9/2 = 108

The area of the trapezoid, [tex]A_T[/tex] = 108 ft.²

there is no answer for this on brainly, if you answer this, you're making history.

Answers

Answer:

103.62

Step-by-step explanation:

Formula: v = πr²[tex]\frac{h}{3}[/tex], v = πr²h

Given: π = 3.14, r = 3, h = 5

Sub: 3.14(3)²[tex]\frac{5}{3}[/tex]

Simplify: 3.14(9)[tex]\frac{5}{3}[/tex]

Simplify: (28.26)[tex]\frac{5}{3}[/tex]

Solve: 47.1

Given: π = 3.14, r = 3, h = 6

Sub: 3.14(3)6

Simplify: (9.42)6

Solve: 56.52

V = v1 + v2

V = 47.1 + 56.52

V = 103.62

The total volume of the figure is 103.62


Answer both parts of the question with all of the numbers pls

Answers

f(x) answers

2561024409616384

g(x) answers

512125025924802

If using the method of completing the square to solve the quadratic equation x^2+11x+30=0x 2 +11x+30=0, which number would have to be added to "complete the square"?

Answers

Answer:

(11/2)² or 121/4 would be added to the equation x ² +11x+30=0,  to "complete the square".

Step-by-step explanation:

x 2 +11x+30=0

Write the equation in the form of the square

(x)^2 + 2(x) (11/2)  + (11/2)^2  + 30 - 121/4= 0

Square of the first element + 2 into first element into 2nd element + square of 2nd element gives the complete square formula.

How we obtained the second element?

The mid term broken must always be equal to the mid term given.

Hence

2(x)    can only be equal to 11x if we multiply it by 11 and divide it with 2.

So the second term must be 11/2 .

To complete the square this second term ( 11/2)² is added and then subtracted to keep the equation equal to the original equation.

(x)^2 + 2(x) (11/2)  + (11/2)^2  + 30 - 121/4= 0

Putting it in the form of square

(x+ 11/2)^2  + 120-121/4= 0

Taking LCM and solving

(x+ 11/2)^2   - 1/4= 0

(x+ 11/2)^2  = 1/4

Taking square root on both sides

(x+ 11/2)   = ± 1/2

x= - 11/2  ± 1/2

x= -10/2= -5

x= -12/2= -6

Which of the following samples would meet the "random" condition?

Answers

Answer:

Brother there's nothing there

Step-by-step explanation:

please help with 15 i’m desperate please i’ll give u a brainliest

Answers

Answer:

A. -1/3 is the answer for this question

Answer:

m=-1/3 so the answer is A.

Step-by-step explanation:

Step One: Identify two points on the line.

Step Two: Select one to be (x1, y1) and the other to be (x2, y2).

Step Three: Use the slope equation to calculate slope.

m=4-(-1)/-12-3

m=-1/3

Hope this helped!!!

Find the area of the following
11cm
6cm​

Answers

Answer:

Area = lw

11 x 6 = 66

Answer is 66 cm squared

a truck driver drives at an average rate of 43 miles per hour . at the rate how many miles will he drive in 11 hours

Answers

Answer:

473 miles

Step-by-step explanation:

43 mph for 11 hours = 43×11 = 473

What subtraction sentence does this show?

A. 4.3 - (-0.9) = 5.2
B. 4.3 - 0.9 = 5.2
C. -4.3 - 0.9 = 5.2
D. -4.3 - (-0.9) = 5.2

Answers

Ummmmmmmmmmmmm
Mm A is correct I think. The question was unclear but A is the only correct function

What percent of the mornings was the pool temperature 80F or higher?

Answers

Answer:

50%

Step-by-step explanation:

Sam has a box shaped like a rectangular prism. It measures
1
6
inches in height, 1
3
in. wide and 1
2
in.
long. What is the volume of the box? Leave your answer as an improper fraction.

Answers

Answer:

Step-by-step explanation:

whats is the value of 4+4

Answers

Answer:

8 is the answer \(-ㅂ-)/ ♥ ♥ ♥(╯°□°)╯︵ ┻━┻

Answer: 8

Step-by-step explanation:

Find the unit rate.

486 games every 3 seasons

The unit rate is
games per season.

Answers

Answer:

I believe the answer is 162 per season is the unit rate , I am really sorry if I am wrong.

.......................................

Answers

Answer:

150

Step-by-step explanation:

PLS HELP dont guess pls and send any links ty

Answers

Answer:

A) 4/15

Step-by-step explanation:

There are 15 total numbers that becomes 15 total possibilities

There are 4 numbers less than 5, so there is a 4 out of 15 chance one of those numbers get picked

A regular pentagon has an apothem of 4 centimeters.
What is the area of the regular pentagon in square centimeters? Round your answer to
the nearest tenth.

Answers

Answer:

[tex] \boxed{A ≈ 58.1 \: cm^{2}} [/tex]

Step-by-step explanation:

When given a regular polygon.

s = a × 2 tan (π / n [radians]).

s = a × 2 tan (180 / n [degrees])

A = (n × s × a) / 2

Where s is the side length, n is the number of sides, a is the apothem length, and A is the area.

You may also see A = p × a.

Where p is the perimeter, the perimeter is the same as n × s.

The apothem is also known as the inradius.

______________________________________

Given a regular pentagon which has 5 sides, and an apothem of 4 cm.

s = 4 × 2 tan (180 / 5) = 4 × 2 × (0.726542528) = 8 × (0.726542528) = 5.81234022404.. ≈ 5.8 cm.

Now that we have sufficient information, we can now solve for the area.

A = (n × s × a) / 2

A = (5 × 5.81234022404.. cm × 4) / 2

A = (20 × 5.81234022404.. cm) / 2

A = (116.236804481.. cm²) / 2

A = 58.1234022404.. cm²

A ≈ 58.1 cm²

The area of the regular polygon is the amount of space it covers

The area of the regular polygon is 58.1 square centimeter

The given parameter is:

[tex]\mathbf{a=4}[/tex]

Start by calculating the side lengths using

[tex]\mathbf{s = 2a\ tan (\frac{180}{ n} )}[/tex]

Where n represents the number of sides.

In this case

[tex]\mathbf{n =5}[/tex]

So, we have:

[tex]\mathbf{s = 2a\ tan (\frac{180}{ 5} )}[/tex]

[tex]\mathbf{s = 2a\ tan (36)}[/tex]

Substitute 4 for (a)

[tex]\mathbf{s = 2 \times 4\ tan (36)}[/tex]

[tex]\mathbf{s = 8\ tan (36)}[/tex]

[tex]\mathbf{s = 5.8123}[/tex]

The surface area is then calculated as:

[tex]\mathbf{A = \frac{n \times s \times a}{ 2}}[/tex]

So, we have:

[tex]\mathbf{A = \frac{5 \times 5.8123 \times 4}{2}}[/tex]

[tex]\mathbf{A = 58.123}[/tex]

Approximate

[tex]\mathbf{A = 58.1}[/tex]

Hence, the area of the regular polygon is 58.1 square centimeter

Read more about areas at:

https://brainly.com/question/12000718

a) If the blue squares
weigh 3 pounds each,
how much does each
green triangle weigh?

Answers

Answer:

they weigh 2 pounds each

Simplify:3x×2x×x⁴ plz help me I am confuse I think the answer is 6x⁶ It is or not plz help me❤️❤️​

Answers

Answer:

6x^2^x^2+x^4

Step-by-step explanation:

Answer:

Yes your answer is correct

Step-by-step explanation:

First of all you multiply 3x with 2x which equals 6x power 2 because we sum the power. Then we multiply 6x power 2 with x power 4 which equals 6x power 6 because X is 1X so the answer is 6X power 6

Please help with this?
When solving the equation 3n2−15n=3 by completing the square, what is your first step?

Subtract 3 from each side of the equation.

Divide each side of the equation by 3.

Add 15n from each side.

Divide −15by 2 and square the result.

Answers

Answer: Subtract 3 from each side of the equation(A)

Step-by-step explanation:

3n2−15n=3

1:Subtract 3n2 from both sides.

-15n=3-3n2

2:Divide both sides by -15.

-15n/-15=3-3n2/-15

3:Dividing by −15 undoes the multiplication by −15.

n=3-3n2/-15

4:Divide 3−3n 2 ​ by −15

n=n2-1/5

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An equation is formed of two equal expressions. The first step in solving the given equation is to Subtract 3 from each side of the equation.

What is an equation?

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The solution of the equation 3n²-15n=3 can be done as,

3n²-15n=3

3n²-15n-3=3-3

3n²-15n-3=0

(3n²-15n-3)/3=0/3

n²-5n-1=0

Therefore, the first step in solving the given equation is to Subtract 3 from each side of the equation.

Learn more about Equation:

https://brainly.com/question/2263981

#SPJ2

Translate 5 units left and 3 units down.

Answers

Answer: B

Step-by-step explanation: Hope this help :D

The answer is definitely C

equations is the inverse of y = x^2-5?

Answers

Answer:

Step-by-step explanation:

1.  Interchange x and y.  We get:  x = y^2 - 5

2. Solve for y:  y^2 = x + 5, so that y = ±√(x + 5)

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