i need some help with this question​

I Need Some Help With This Question

Answers

Answer 1

Answer:

(7w + 9x)(7w - 9x)

Step-by-step explanation:

 Given expression;

        49w²  - 81x²

Now to solve the problem;

         49w² - 81x² = 7²w² - 9²x²

                           

Using differences of two squares;

        x²  - y²   = (x + y)(x - y)

So;

7²w² - 9²x²  = (7w + 9x)(7w - 9x)


Related Questions

please help asap, the question is
Do you see a pattern? If so, explain your reasoning. and What predictions can you make about future rectangles in the set if your pattern continues?

Answers

Answer: the pattern is that the rectangles width and length get timed 2.

Step-by-step explanation: that pattern will continue until the rectangle will get bigger than the unobservant universe...

find the slope of the line passing through the points (-2,-8) and (7,-8)

Answers

Answer: 0/9

Step-by-step explanation: Hi there!

First, we have to put the points into the y2-y1/x2-x1 form.

Take the y value from the second point (-8) and the first point y value (-8)

and subtract.

-8 - (-8)

to get 0

Now we have to get our denominator by taking the x value from our second point and subtracting it by our first y point.

7 - (-2)

to get 9

so when we put that together...

we get 0/9

So the answer is 0/9.

Hope this answer helps you!

The linear model below shows the number of gallons of gas remaining in Sierra's car after she has driven x miles.

According to the model, how many gallons of gas does Sierra's car hold on a full tank (when the number of miles driven is zero)?

A. 16
B. 19
C. 15
D. 21

Answers

Answer:

The answer is 19

Step-by-step explanation:

In which quadrant does the terminal side of your angle lie if sec theta < o and cot theta < o ?

Answers

Answer:

The endpoint of an angle  

x

lies in the 4th quadrant. Here is why.

First of all, let's recall a few definitions.

Recall the definition of a trigonometric function  

sec

(

x

)

:

sec

(

x

)

=

(by definition)  

=

1

cos

(

x

)

Recall the definition of a trigonometric function  

cot

(

x

)

:

cot

(

x

)

=

(by definition)  

=

cos

(

x

)

sin

(

x

)

Step-by-step explanation:

jhyjyujtyuyju

During a soccer game, a goalie kicks a ball upward from the ground. The equation h(t)=-10t^2+40 represents the height of the ball above the ground in feet as a function of time in seconds. When the ball begins moving downward toward the ground, a player from the other team intercepts the ball with his chest 11 feet above the ground. How long after the goalie kicks the ball does the player intercept the ball?

Answers

Answer:

3.98 seconds

Step-by-step explanation:

The given relationship between height, in feet, and the time, in seconds, is

[tex]h(t)=-10t^2+40[/tex]

[tex]\Rightarrow t^2=\frac{40-h(t)}{10}[/tex]

[tex]\Rightarrow t= \pm\sqrt{4-0.1h(t)}\cdots(i)[/tex]

Let at time [tex]t_1[/tex], the ball was at the goalie, so, [tex]h(t_1)=0[/tex], and at the time [tex]t_2[/tex], the ball was intercepted, so, [tex]h(t_2)=11[/tex].

Now, the time to reach the player after the goalie kicks the ball

[tex]\Delta t=t_2-t_1[/tex]

By using equation (i)

[tex]\Delta t=(\pm\sqrt{4-0.1h(t_2)})-\left(\pm\sqrt{4-0.1h(t_1)}\right)\cdots(ii)[/tex]

Now, at the highest point, the slope of the graph must be zero.

So, [tex]\frac {dh(t)}{dt}=0[/tex]

[tex]\Rightarrow -20t=0[/tex]

[tex]\Rightarrow t=0[/tex]

As at the highest point, the time is zero, to before reaching the highest point ( when kikes by the goalie, [tex]t_1[/tex]) take the time with the negative sign and after the highest point (when the ball intercepted, [tex]t_2[/tex]) take the positive sign.

So, from equation (ii) become.

[tex]\Delta t=\sqrt{4-0.1\times 11}-\left(-\sqrt{4-0.1\times 0} \right)[/tex]

[tex]=\sqrt{3.9}-(-\sqrt 4)[/tex]

[tex]=1.98+2[/tex]

= 3.98 seconds

Hence, the time to reach the ball to the player after the goalie kicks the ball is 3.98 seconds.

What is 25 percent of 530?

Answers

It’s gonna be 132.5


:)))))))

What is the cost of juice in dollars per fluid ounce?

Answers

11 cents per fluid ounce

Which table was created using the equation y = 4x +4?

Answers

Answer:

x  -2, -1, 0 1 2

y-4 0 4 8 12

Step-by-step explanation:

i think...

Answer:

X   Y

1     8

2     12

3     16

4     20

5     24

Step-by-step explanation:

I'm not seeing a table so I assume you need to creat one

the number 0.16 to 4 significant figures is?​

Answers

Answer:

0.1600

Step-by-step explanation:

0.16 has 2 significant figures.  To make it 4 significant figures, add two trailing zeros.

I really don’t understand this question and I don’t know what to do

Answers

I would assume it is 0% for the minimum as there is a chance that rangers didn’t see anything and 65% for the highest as that is all the people that saw giraffe. I am really unsure though.

My second answer is minimum is 55.25% and the maximum is 65%. But once again I ain’t sure and logically I would go for my first answer

Which graph shows a set of ordered pairs that represent a function ?

Answers

Answer:

C

Step-by-step explanation:

if you draw a line between the points then draw vertical lines they dont cross more than one dot

How many terms are there in the following expression: 3a+3ab+7b-4d?

Answers

Answer:

3

Step-by-step explanation:

no need for 6AM and sons to know what u should be a good job of the first day and sons and peele is the only one who is the only person in this one who

Answer:

There are 4 terms.

Step-by-step explanation:

3a

3ab

7b

4d

Use the Distributive Property to simplify 17(2b + 3)​

Answers

the answer is 34b + 51

Answer:

34b+51

Step-by-step explanation:

When you distribute, you multiply the number on the outside of the parentheses by everything inside of the parentheses. So...

17(2b+3)​

34b+51

Because you can't tell what x is, this is the most simplifying you can do.

Hopefully this helped you out...have an amazing day :3

What is the slope of the graph of 5x – 2y = 20? a.) -10
b.)-2/5
c.)5/2
d.) 5

Answers

Answer:

The slope of the graph is 5 / 2

To determine the slope of the graph of [tex]5x-2y=20[/tex] is equal to: C. [tex]\frac{5}{2}[/tex]

Given the following equation:

[tex]5x-2y=20[/tex]

To determine the slope of the graph:

The standard form of an equation of line is given by the formula;

[tex]y=mx+b[/tex]    ....equation 1.

Where:

x and y are the points.m is the slope.b is the intercept.

[tex]5x-2y=20\\\\2y = 5x-20\\\\y = \frac{5}{2} x -10[/tex]   ....equation 2

Comparing eqn. 1 and eqn. 2, w have:

Slope, m = [tex]\frac{5}{2}[/tex]

Read more: https://brainly.com/question/18123312

You deposit $900 in a savings account that earns a simple interest rate of 4.5% per year. You calculate you will earn $1215 in interest over 3 years. Is your answer reasonable?

A. Yes; the interest will be much less than the total in the account

B. No; the interest will be much less than the total in the account.

C. No; the interest will be more than the total in the account.

D. Yes; the interest will be more than the total in the account.

Answers

Answer:

a..

Step-by-step explanation:

yes the interest  will be much less than total than the account

The answer is not reasonable because the interest will be much less than the total in the account.

In order to determine if the answer is reasonable, we have to determine the simple interest that would be earned and the total amount in the account.

Simple interest = amount deposited x time x interest rate

$900 x 0.045 x 3 = $121.50

The total amount in the account in three years = amount deposited + interest earned

$900 + $121.50 = $1021.50.

To learn more about simple interest, please check: brainly.com/question/9352088?referrer=searchResults

help. you are converging 8 centimeters to meters. how will the number of meters compare to 8? explain​

Answers

Answer:

0.08

Step-by-step explanation:

Because one cm to meters is 0.01 and times it by 8

=0.08

two solutions to the inequality p ≤ 16.

Answers

Answer:

The inequality says p is equal to 16 and less than 16.

So from under 16 (even negative), you can give a solution.

Examples: -3; 2

Hope this helps!

1, 2, 3, 4, 5, 6, 7 are all possible answers. Any number less than or equal to 16.

AYEEEEE i need help again because i dont know nothing

Answers

Answer:

its D

Step-by-step explanation:

"For whatever reasons, Ray, call it . . . Fate, Call it Luck, Call it Karma. I believe everything happens for a reason. I believe that we were destined to get thrown out of this dump."-Dr. Peter Venkman (GhostBusters)

Im imposter yay

Which statement about the graph is true?
•The period of the graph is 2pi/3
•The amplitude of the graph is 2 units •The domain of the graph is from –3 to 3 and is inclusive.
•The graph represents a reflection over the x-axis of the function y = 3sin(2x)​

Answers

Answer:

D. The graph represents a reflection over the x-axis of the function y = 3sin(2x).

Step-by-step explanation:

The statement fourth the graph represents a reflection over the x-axis of the function y = 3sin(2x) is true option (D) is correct.

What is trigonometry?

Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.

We have shown a trigonometric graph in the picture.

The maximum value graph achieve is 3

The minimum value graph achieve is -3

The midline y = 0

The parent function will be f(x) = sinx

Transformed function:

y = 3sin(2x)

Thus, the statement fourth the graph represents a reflection over the x-axis of the function y = 3sin(2x) is true option (D) is correct.

Learn more about trigonometry here:

brainly.com/question/26719838

#SPJ2

67.5 Divided by 2.25 show work please:(!!

Answers

Answer:

The right answer for your question is 30 because if you divide 67.5 by 2.25 then,the quotient would be 30.

Hope it helps you.

The required solution will be 30 which is determined by 67.5 divided by 2.25.

What is the division operation?

The basic arithmetic operations are division, multiplication (the opposite of division), addition, and subtraction. Arithmetic operations are methods for combining integers to generate new numbers. The division is defined as the number of times a given number is divided by another number.

67.5 Divided by 2.25

67.5 ÷ 2.25

Convert the dividend and divisor to integers by multiplying each by 100, making them 6750 and 225 respectively.

⇒ 6750 / 225

Apply the division operation, and we get

⇒ 30

Thus, the required solution will be 30 which is determined by 67.5 divided by 2.25.

To learn more about the division operation click here :

brainly.com/question/25870256

#SPJ2

Zach's car travels 21 miles on 1 gallon of gas. Using the answer choice from the previous question, Determine how far Zach travels on a trip if he uses 16 gallons of gas.

Answers

Answer:

336 miles

Step-by-step explanation:every gallon goes 21 miles so

2gallons= 42 miles

3gallons =63 miles

16 gallons  x 21 miles

Answer:

336

Step-by-step explanation:

for every one gallon he goes 21 miles

21+21=42         2 gallons

42+42=84       4 gallons

84+84=168      8 gallons

168+168=336  16 gallons

Y is greater than or equal to 3 and less than 7

Answers

Answer:

y = 3to6

Step-by-step explanation:

Answer:

3 ≤ y < 7

Step-by-step explanation:

≥ means greater than or equal to

≤ means less than or equal to

< means less than

> means greater than

Given y is greater than or equal to 3

y ≥ 3

y less than 7

y < 7

Joining both of them together

3 ≤ y < 7

Adrian bought 20 chicken wings for $44.00. How much does each wing cost?

Answers

Answer:

my crushes name is Adrian but the answer is $2.20

Step-by-step explanation:

Is this a geometric sequence? 100,50,10,5, 1,...

Answers

Answer:

No

Step-by-step explanation:

What is 8.51736 rounded to the nearest ten-thousandth?

Answers

I believe it’s 8.518
the answer is 8.5

hope this helps

Select two ratios that are equivalent to 6:106:106, colon, 10. Choose 2 answers: Choose 2 answers: (Choice A) A 20:1220:1220, colon, 12 (Choice B) B 32:5032:5032, colon, 50 (Choice C) C 3:53:53, colon, 5 (Choice D) D 24:4024:4024, colon, 40 (Choice E) E 14:8014:80

Answers

Answer:

C. 3 : 5

D. 24 : 40

Step-by-step explanation:

Select two ratios equivalent to 6 : 10

Checking all options

A. 20 : 12

20 / 12

= 10 /6

= 10 : 6

B. 32 : 50

= 32 / 50

= 16 / 25

C. 3 : 5

3 / 5

= 6 / 10

3/5 is equivalent to 6 / 10

D. 24 : 40

24 / 40 = 12 / 20

= 6 / 10

= 6 : 10

Options C and D are correct

Answer:

the anwser is c. and d.explanation:khan acadmey says so

For the function y=7−3x, what is the ordered pair for x=5?

Answers

Answer:

The ordered pair is (5,-8)

Step-by-step explanation:

Here, we are interested in writing the ordered pair for x = 5

We need to get y.

We can get y by substituting into the given equation;

y = 7 - 3(5)

y = 7-15

y = -8

The ordered pair is (5,-8)

A city planner wants to build a bridge across a lake in the park. To find the length of the bridge, he makes a right triangle with one leg and the hypotenuse on land and the bridge as the other leg. The length of the hypotenuse is 340 feet and the other leg is 160 feet. Find the length of the bridge

Answers

Answer:

The length of the bridge is 300 feet.

Step-by-step explanation:

Let A represent the length of one leg.

Let B represent the length of the other leg (i.e length of the bridge)

Let C represent the length of the Hypothenus.

From the question given above, the following data were obtained:

Length of Hypothenus (C) = 340 feet.

Length of one leg (A) = 160 feet.

Length of the bridge (B) =.?

The length of the bridge can be obtained by using the pythagoras theory as illustrated below:

C² = A² + B²

340² = 160² + B²

115600 = 25600 + B²

Collect like terms

115600 – 25600 = B²

90000 = B²

Take the square root of both side

B = √90000

B = 300 feet

Therefore, the length of the bridge is 300 feet

√2+√2 =
A. 3√2 or B. 2√2
Which one? ​

Answers

Answer:

B

Step-by-step explanation:

Can i plz have brainliest :)

Determine if the following is a PROPORTIONAL
relationship or NONPROPORTIONAL relationship.
y = -2x + 2

Answers

The following equation is proportional
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This excerpt most supports the conclusion that Gilgamesh is aL Which step in the rule-making process requires the involvement of the Office of Budget and Management?initiatingcommentingissuingproposing Mark M. Upp has just been fired as the university book store manager for setting prices too low (only 20% above suggested retail). He is considering opening a competing bookstore near the campus, and he has begun an analysis of the situation. There are two possible sites under consideration. One is relatively small, while the other is large. If he opens at Site 1 and demand is good, he will generate a profit of $50,000. If demand is low, he will lose $10,000. If he opens at Site 2 and demand is high he will generate a profit of $80,000, but he will lose $30,000 if demand is low. He also has decided that he will open at one of these sites. He believes that there is a 50% chance that demand will be high. He assigns the following utilities to the different profits:U = 50,000 = ? U(-10,000) = 0.22U = 80,000 = 1 U(-30,000) = 0For what value of utility for $50,000, U(50000), will Mark be indifferent between the two alternatives? 7. What is the speed of the sound in air of 250 C temperaturesA. 336m/s B.325m/sC.346m/sD.355m/s8. Calculate the speed of sound if the temperature of the vibrating water is28-A.346m/sB.347.8m/sC. 350m/sD.349.1m/s9. An echo occurs when soundA. is trarismitted through a surfaceB. is reflected from a distant surface.C. changes speed when it strikes a distant surface.D. all the above10. The change in direction of a sound wave around corners is calledA. diffraction B. interferenceC. refractionD. reflection11. You can hear noises a long distance away over water at night becauseA. of lowered temperature. B. water conducts sound better at night. C. Sound is reflected off water more enight. D. Of refraction of sound in air.12. What is the BEST reason why a lot of people love to sing inside the bathroom?A. because of privacyB. because the bathroom creates an aurally pleasing acoustic environmentC. because of resonanceD. because the small dimension of the bathroom makes someone comfortable13. The technique used by bats to find their way or to locate food isB. RADARC.ECHOLOCATIOND. FLAPPINGA. SONAR14. What kind of wave is sound wave?A. shock wave.B. standing wave.C. transverse wave.D.longitudinal wave.15. When does resonance occur?A. when objects of different natural frequencies are forced to produce vibrationB. when objects vibrateC. when sound is reflectedD. when one object vibrates at the same natural frequency of a second object 3. Subtract 1.7 - 0.8 = _____ tenths - _____ tenths = _____ tenths = ______ what are the tenths How did Canada expand the union to become a 'sea to sea' nation hii i need help with a geometry problem. the picture is attached. i'll mark you brainliest!! NEED HELP ASAP PLEASE. Assume you invested $100,000 into your lawn mowing business, but you could have invested in a similar operation with the same risk and received a 20 percent return. You should expect a normal profit of $ _____________ . (Answer to the nearest whole number of THOUSANDS of dollars) help please i need helpp Langston is completing a research project about the famous German pianist and composer Ludwig von Beethoven for school. Which text would best fit his particular academic purpose? A. A historical account about the life of Beethoven B. A blog by a piano teacher about her favorite German music C. A movie review about a film on the life of a famous German pianist D. A magazine article about the most popular pianists in the last decade How did the closing of the woodward department store affect the downtown eastside Fill in the blank with the Spanish equivalent of the word in parentheses:Tengo (twenty three) aos.veintidsveinteveintitrsdiecinueve Determine the slope and y intercept please answer 4y+20=x . 17 points A number n minus 3 is at least 5. f(x)=-5/2 x-3A. Create a linear function g(x) such that f(x) = g(x) has exactly one solution. g(x) = ? B. What is the exact solution to f(x) = g(x)? x = ?Step by step Which sentence uses the word painting as a gerund?A. Joe thought about taking an online landscape painting class.B. When Margo is painting, she uses a mixture of vegetables and office supplies.C. Painting is one of the most enjoyable pastimes I know.D. Lauren was painting her room green but decided to change the color to purple instead what country of germany Gametes produced by an organism contain a combination of genes from that organism. In every gamete, this combination isA. the same because it is created from the same DNAB. the same because chromosomes are copied prior lo melosisC. different due to DNA replication prior to mitosisD. different due to independent assortment during meiosis what chemical is C2H4O2