9xsquared -49 factorise

Answers

Answer 1

Answer:

(3x-7)(3x+7)

Step-by-step explanation:

3^2 * x^2 -7^2 (expand that out)

(3x)^2 - 7^2

(3x-7)*(3x+7)

Answer 2

Answer:

(3x+7)(3x-7)

Step-by-step explanation:

Applying the Difference of Two Squares(D.O.T.S) formula:

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

9x²= (3x)²

49=7²

Put 3x as x and 7 as y into the D.O.T.S formula:

(3x+7)(3x-7)

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Related Questions

Based on past musical productions, a theater predicts selling 400−8p number of tickets when each ticket is sold at p dollars. Using the table from the last question answer the following questions:

1. For which ticket prices will the theater earn no revenue? Explain how you know.


2. At what ticket prices should the theater sell the tickets if it must earn at least $3,200 in revenue to break even (to not lose money) on the musical production? Explain how you know.

Answers

To earn at least $3,200 in revenue, the ticket prices should be $10 or $40.

What is an Equation

An equation is an expression that shows the relationship between two or more variables and numbers.

Revenue = number of tickets sold * price per ticket = (400 - 8p)p

Revenue = 400p - 8p²

For no revenue:

400p - 64p² =  0

p = $0 or p = $50

For revenue of atleast 3200:

400p - 8p² =  3200

p = $10 or p = $40

To earn at least $3,200 in revenue, the ticket prices should be $10 or $40.

Find out more on Equation at: https://brainly.com/question/1214333

What is the decimal equivalent of 1/3?

A. 3.1

B. 1.3
_
C. 0.3

D. 0.3

Answers

Answer: C.  0.3

Step-by-step explanation:

To convert 1/3 so you can write it as a decimal, simply divide the numerator by the denominator, like this:

= 1/3

= 1 ÷ 3

≈ 0.3333333

Therefore, the solution to 1/3 as a decimal is as follows:

1/3 ≈ 0.3333333

Answer:

0.3

Step-by-step explanation:

Use “Bus stop” long division.

1/3 is the same as saying 1÷3, or “how many times does 3 go into 1”

3|1.000

How many times does 3 go into 1? Zero remainder one. We take the one over into the next column. So now we have:

3|0.1000

0

So, how many 3s go into 10? Three with one remaining. We take the one into the next column again.

3|0.0100

0.3

How many 3s go into 10? 3 again, remainder 1.

3|0.0010

0.33

This process continues until you end up with no remainder - but that doesn't ever happen in the decimal expansion of 1/3,

1/3=0.333… with recurring (infinitely repeating) 3s, and that's why we tend to prefer factions where we can use them.

1/3=0.3

I HOPE THIS HELPED YOU.

can someone help me please I didn't understand ​

Answers

Answer:

ok so

Step-by-step explanation:

you would go through the answers and determine the answer by trying to imagine those answers at the end of the problem and which ever one matches up will be the answer

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A square has a side length of 6 inches. Which of the following is the length of its diagonal in inches?

(1.) 12

(2.) 6/3

(3.) 20

(4.) 10/2

Answers

Answer:

8.49inches(incorrect options)

Step-by-step explanation:

the diagonal in a square divided the square into 2 and equal right- angled triangles.

to find the length of the diagonal of the square pick one of the triangles and find the length using pythagoras theorem.

having sketch a diagram. the length of the diagonal becomes the hypotenuse and the the two sides of the square becomes the opposite and adjacent side.

hyp²=opp²+adj²

L²=6²+6²

L²=72

L=8.49inches

For problems 8-10, evaluate the expression if a = 4, b = 6, and c = 10.

Answers

Answer:

[8] 3

[9] 12

[10] 64

Step-by-step explanation:

[8] [tex]\frac{5(6)}{10}[/tex] = 3

[9] [tex]\frac{1}{2}(4)(6)[/tex] = 12

[10] [tex]4(6+10)=[/tex]64

[RevyBreeze]

Answer:

Hope this helps you..please follow + Mark me as brainlist

Need help finding the coordinate rule

Answers

Answer:

(x,y) --> (x+5, y)

Step-by-step explanation:

You are moving the image 5 units to the right so you would add 5 to each x coordinate.

Ben gets 14/20 in his Geography test. What percentage is this?

Answers

Answer:

70%

Step-by-step explanation:

Answer:

14/20 × 100=70% Hope this helps

Hey, I am a student and I am taking algebra 1 regents . Can someone help me with my question below and explain how you got your answer? can you also let me know how to do ti-84 and ti nspire calc? I am using the ti nspire at school and ti-84 at home.

Here's the question :

On the main floor of the Kodak Hall at the Eastman Theater, the number of seats per row increases at a constant rate. Steven counts 31 seats in row 3 and 37 seats in row 6. How many seats are there in row 20?

Answers

Answer:

65

Step-by-step explanation:

31, 6 = 37 t3 rows  and  6 seats so its going up 2 every row so you need 14 rows after row 6 so 14 x 2 + 37 = 65 seats

Common difference

(37-31)/(6-3)6/32

Row 2 has 29 seats

Row 1 has 27 seats

First term =27

Seats on row 20

27+19(2)27+3865

2. Which of the following is the correct value of ? Show your reasoning.

Answers

Answer:

b

Step-by-step explanation:

0.22x4

= 0.22+0.22+0.22+0.22

=0.88

Or

0.22*100=22

22*4=88

88:100=0.88

Jonell has finished 20% of an art project that has taken him a total of 3 hours so far. If he continues to work at the same rate, how many hours will it take for him to complete the entire project?

coins

Answers

Answer:

12 hours

Step-by-step explanation:

A principal becomes an amount of 1080 in one year at the rate 8% per annum. What is the principal ? ​

Answers

Question :-

A Principal becomes an Amount of Rs. 1080 in 1 year at the Rate 8 % per annum . What is the Principal ?

Answer :-

Principal is Rs. 135 .

Explanation :-

As per the provided information in the given question, we have been given that the Amount is Rs. 1080 , Time Period is given 1 year , Rate of Interest is 8 % . And, we have been asked to calculate the Principal .

For calculating the Principal , we will use the Formula :-

[tex] \bigstar \: \: \boxed{ \sf{ \: Simple \: Interest \: = \: \dfrac{P \times R \times T}{100} \: }} \\ [/tex]

Where ,

P denotes to the PrincipalR denotes to the Rate of InterestT denotes to the Time Period

Therefore , by Substituting the given values in the above Formula :-

[tex] \dag \: \: \sf{Simple \: Interest \: = \: \dfrac{Principal \: \times \: Rate \: \times \: Time}{100} } \\ [/tex]

[tex] \longmapsto \: \: \sf{1080 \: = \: \dfrac{Principal \: \times \: 8 \: \times \: 1}{100} } \\ [/tex]

[tex] \longmapsto \: \: \sf{1080 \: = \: \dfrac{Principal \: \times \: 8 }{100} } \\ [/tex]

[tex] \longmapsto \: \: \sf{Principal \: = \: \dfrac{1080 }{8 \times 1} } \\ [/tex]

[tex] \longmapsto \: \: \sf{Principal \: = \: \dfrac{1080 }{8} } \\ [/tex]

[tex] \longmapsto \: \: \textbf {\textsf {Principal \: = \: Rs. \: 135 }} \\ [/tex]

[tex] \underline {\rule {200pt} {4pt}} [/tex]

The principal amount of 1080 in one year at the rate of 8% per annum is 135.

What is the principal rate of the Simple Interest?

Simple interest is the credit of income associated with a deposit or an investment.

The formula for calculating the simple interest is:

[tex]\mathbf{S.I = \dfrac{P \times R \times T}{100}}[/tex]

where:

S.I = simple interestP = principal R = rate T = time

Making the principal the subject from the simple interest, we have:

[tex]\mathbf{P = \dfrac{100 \times S.I}{R \times T}}[/tex]

[tex]\mathbf{P = \dfrac{1080}{8 \times 1}}[/tex]

P = 135

Therefore, we can conclude that the principal amount of 1080 in one year at the rate of 8% per annum is 135.

Learn more about the principal amount of an investment here:

https://brainly.com/question/25545513

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if a length of a square is 3.2 cm square what is the perimeter and area​

Answers

Since all of a squares sides are the same length, we can use 3.2 cm in the following equations:

P= 2L + 2W and A= L x W

P= 2(3.2) + 2(3.2) which is the same as P= 4(3.2)

P= 12.8 cm

A= 3.2 x 3.2
A= 10.24 cm^2

if one pound = rupees 135 and dollar =105 rupees then convert the pound 63 into Dollar​

Answers

Answer:

Step-by-step explanation:

£63 = 135 × 63

       = Rs . 8505

Rs . 8505 = 8505 / 105

                 = $81


Choose TWO correct answers from the 5 choices.
Need answer ASAP thank you!

Answers

C- (-5,-10) and E- (-8,-6)

A triangle has two angles namely 130 degrees and 10 degrees. What is the number of degrees of the third angle?

Answers

Step-by-step explanation:

10+130+x=180

140+x=180

x=40

Identify the percent in 12 is 50% of 24

Answers

Answer:

50 percent of 24 is 12. 3.

Step-by-step explanation:

50 percent *24

= (50/100)*24

= (50*24)/100

= 1200/100 = 12

Now we have: 50 percent of 24 = 12

Question: What is 50 percent of 24?

We need to determine 50% of 24 now and the procedure explaining it as such

Step 1: In the given case Output Value is 24.

Step 2: Let us consider the unknown value as x.

Step 3: Consider the output value of 24 = 100%.

Step 4: In the Same way, x = 50%.

Step 5: On dividing the pair of simple equations we got the equation as under

24 = 100% (1).

x = 50% (2).

(24%)/(x%) = 100/50

Step 6: Reciprocal of both the sides results in the following equation

x%/24% = 50/100

Step 7: Simplifying the above obtained equation further will tell what is 50% of 24

x = 12%

Therefore, 50% of 24 is 12

Determine if (3,2) is a solution to the equation y = -x + 1

Answers

Answer:

The left side 2 does not equal to the right side − 2 , which means that the given statement is false. False

Step-by-step explanation:

Hopefully this helps :)

The diameter of a circle is 10 in .find the cirumference to the nearest tenth

Answers

Answer:

C ≈ 31.4 in

Step-by-step explanation:

the circumference (C) of a circle is calculated as

C = πd ( d is the diameter ) , then

C = π × 10 ≈ 31.4 in ( to the nearest tenth )

How many roots does the following parabola have?

Answers

Answer:

I think 2

Step-by-step explanation:

I think 2 tell me if I'm wrong

Which terms could have a greatest common factor of 5m2n2?.

Answers

Answer:

a common factor would be 5m^4n^3 or 15m^2n^2

Step-by-step explanation:

not sure what terms they want you to choose from but anything that starts with a number (5,10,15,) and "m" would any number 5 would go into

Type an equation for the line
shown in the graph.
(-2,3).
(2.5)

Answers

Answer:

y= 1/2x + 4

Step-by-step explanation:

the slope is one half and the y intercept is 4.

please give brainliest!!

Pls help!! Find the average rate of change of the function given over the interval

Answers

We need slope

(0,2)(-4,3)

Slope:-

[tex]\\ \rm\rightarrowtail m=\dfrac{3-2}{-4-0}[/tex]

[tex]\\ \rm\rightarrowtail m=\dfrac{1}{-4}[/tex]

Can somebody please help me please please please asap?

Answers

Answer:

Step-by-step explanation:

Write the fraction as a percent.


1/10
please help

Answers

Answer: the answer is 10%

Step-by-step explanation: 1/10. You have to get the denominator to 100 so, you would x10 the debonair. You do the same to the top and get 10/100. So, 10%

Answer:

10%

Step-by-step explanation:

So if 100% is one then what 100/10?

2 ( 3x + 2 ) = 2x + 28

Answers

Answer: x = 6

Step-by-step explanation:

1. Distribute

2. Subtract 4 from both sides of the equation

3. Simplify

4. Subtract 2x from both sides of the equation

5. Simplify

6. Divide both sides of the equation by the same term

7. Simplify

Hello, the answer would be X = 6

Hi can you please help me out

Answers

Answer: i thinks its C

Step-by-step explanation:

please help with this as well please

Answers

Answer:

the answer is 28 feet

Step-by-step explanation:

hdhbsn

Please find α/beta. EXPLAIN all the steps and use a trigonometric function.(give the value, explain and show all steps with a sentence for brainiest) ty

Answers

Answer: I don't know

Step-by-step explanation:  Use the fact that 180° is equivalent to \pi  radians as a conversion factor: 1=\frac{\pi \, \text{rad}}{180^{\circ}}=\frac{180^{\circ}}{\pi \, \text{rad}}.

225^{\circ}=225^{\circ}·\frac{\pi }{180^{\circ}}=\frac{5\pi }{4} rad

\frac{5\pi }{3} rad = \frac{5\pi }{3}·\frac{180^{\circ}}{\pi }=300^{\circ}

I know this is probably not right sorry if I wasted your time cause my friend told me this.

Find each missing measure. Round to the nearest tenth if necessary

Answers

Answer:

1 =68

2=68

3=125

Step-by-step explanation:

1.all interior angles adds up to 180:

180-39-73=68

2. opposite angles are equal so angles 1 and 2 are opposite therefore they are equal.

3. the sum of angles in a quadrilateral adds up to 360. so 360 - 90 - 68 -77= 125

WHAT IS THE ANSWER OF 3/4=6

Answers

Answer: The answer to this is "False"

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