Use your knowledge of special cases to solve the problem.

( 3a - 2b )2 = ??

a) 9a^2 + 12ab + 4b^2

b)9a^2 - 4b^2

c)9a^2 - 12ab + 4b^2

Answers

Answer 1

Answer:

C

Step-by-step explanation:

We want to simplify:

[tex](3a-2b)^2[/tex]

Recall the perfect square trinomial pattern:

[tex](a+b)^2=a^2+2ab+b^2[/tex]

Let a = 3a and b = -2b. Thus:

[tex](3a-2b)^2=(3a)^2+2(3a)(-2b)+(-2b)^2[/tex]

Simplify:

[tex]=9a^2-12ab+4b^2[/tex]

Our answer is C.


Related Questions

What is the x-intercept for (-4,-4), (2,-2)

Answers

i'm pretty sure it's (8,0)

Please help I’m struggling

Answers

ANSWERS:
m=4

m=18

j=38

n=5

hope this helps!

Please help me I need ASAP please please help me please please help please

Answers

Answer:

3

Step-by-step explanation:

i am so sorry if i am not correct

Find the value of x! First person to correctly respond gets brainliest!!

Answers

Answer:

180-33 = 147

Step-by-step explanation:

Find the missing sides of each triangle. Leave your answers in radical form

Answers

Answer:

youbhave give me more information.

Answer:

incomplete question

please write the whole question or diagram of the question

50 points Help Please!!!! Solving angle word problems with complementary and supplementary angles

Will give brainliest and 20 points!!!!!!

Answers

7 meters

Step-by-step explanation:

A robot’s height is 3 meters 40 centimeters. How tall is the robot in millimeters?

Answers

Answer:

3400

Step-by-step explanation:

if you add it all up in cm, which is 340cm then divide by 10 you get 3400.

A silk worm grows twice asd long as it was the day before .If the worm measures v40 mm on the 10 th day, on which day was it 2.5 mm long

Answers

Answer:

On the sixth day (10 - 4), the worm was 2.5mm long.

Step-by-step explanation:

Giving the following information:

Future Value= 40mm

Present Value= 2.5mm

Number of periods (n)= ?

Growth rate= 100% per day

First, we need to calculate the number of days it will take to grow from 2.5mm (PV) to 40mm (FV):

n= ln(FV/PV) / ln(1+i)  

n= ln (40 / 2.5) / ln (2)

n= 4

It will take 4 days.

On the sixth day (10 - 4), the worm was 2.5mm long.

PLEASE HELP FAST !!
3/2+19/3

Answers

Answer:

28/6 yeah thats right wasp

Answer:

Step-by-step explanation:

i need help with my last two questions:)

Answers

Answer:

5. (a)

6. (b)

I am hoping that this will help you

Write an equation of the line in slope-intercept form. (0,2) (3,3) ​

Answers

i dont see an image

Step-by-step explanation:

Answer: y = 1/3x +2

Step-by-step explanation:

The slope-intercept form of an equation looks like this:

y=mx+b

The m stands for the slope and the b stands for the y-intercept. We need two points on the line to write out this equation.

We have the two points you entered, so let's start by getting the slope. (1/3)

Now that we have the slope, we can plug it into our equation: y = 1/3x+b

To get b, our y-intercept, we just need to plug in one of the points you entered and solve. Now that we have both our m and b values, we can plug them in to get our equation: Y= 1/3x+2

Hope it helps.

What is the area of a triangle that has a height of 6 ft and a base length of 7 feet?

Answers

Answer: 21ft

Step-by-step explanation:

Answer:

the area of triangle is height ×base

6×7=42

i think this is the answer

A local theater is selling tickets for a play. Student tickets cost $4.50 and adult tickets cost $7.50 each. The theater can hold at most 800 people and would like to make at least $3000.
Write a system of inequalities

Answers

the question was which combination could they make to get at least $3000

any combination they make if they have 800 people they will always have more than $3000

What is the equation of the midline of the graph of y=2cos(x/4)−3

Answers

Answer:

y = -3

Step-by-step explanation:

y=2cos(x/4)−3

range of cos α : -1 ≤ cos α ≤ 1

-2 ≤ 2cos(x/4) ≤ 2

-5 ≤ 2cos(x/4)−3 ≤ -1       (-2-3= -5 and 2-3= -1) ....Range ( 2 x Amplitude)

midline: midline of y = -1 and y = -5        y = -3

10 minutes to answer

Write an expression equivalent to

4 - (-7)


help

Answers

11 because -7 subtracted by 4 add kore to the 7 so think of it this way -7 is a bad guy and 4 is a bad guy to because its a subtraction so if both bad guys combine you get 11 because a negative with negative makes a positive so its 11

Determine which is the graph of the given function.
-0.57+ 5 if x <1
=
-0.5(x + 5) if x 1

Answers

The answer is b hope it helps

what is x? plz help :)

Answers

Answer:

13

Step-by-step explanation:

using the Pythagorean theorem  a²+b²=c²

or the two shorter sides square added together equal the longest side squared

5²+12²

5²=25

12²=144

144+25=169

then we just have to take the square root of 169

√169=12

have a great day :D

Answer this question to get marked as brainliest!!!!!

Answers

Answer:

A) 80 degrees

Step-by-step explanation:

100-20=80

If g(x) = x2 + 2, find g(3). (2 points)
Оа
9
Ob
8
Ос
11
Od
6

Answers

the answer is 8 so Ob

Nathan usually drinks 37 ounces of water per day. He read that he should drink 62 ounces of water per day. If he starts drinking 62 ounces, what is the percent increase? Round to the nearest percent.

Answers

Answer:

68%

Step-by-step explanation:

The increase is (62 - 37), or 25, ounces.  Comparing this to the original quantity (37 oz), we divide 25 oz. by 37 oz., obtaining 0.676 (a ratio).  Multiplying this ratio by 100%, we get 68% (to the nearest percent).

1
The rate of population decline of Seaside
Harbor is modeled by the equation
-0.00810
P(t)=15000e
where t is the time
in years and 15,000 is the current
population. In approximately how many
years will the population of Seaside
Harbor be 9,000?

Answers

(−0.0081p)(t)=(15000)(2.718282)

Step 1: Divide both sides by -0.0081t.

−0.0081pt

−0.0081t

=

40774.227427

−0.0081t

p=

−40774.227427

0.0081t

Answer:

p=

−40774.227427

0.0081t

Karley added 14 bottle caps to her collection. She
now has 54 boule caps. Write and solve an equation to
find the number of bottle caps she originally had.
PLEASE ANSWER !!

Answers

Answer:

54 - 14 = 30

Step-by-step explanation:

what is the volume of the prism​

Answers

Answer:

600

Step-by-step explanation:

multiply w l h

10 x 5=50

50 x 12=160

simplify (2x+1)(x+8) - (x-3)(2x+1) ​

Answers

Answer:

22x+11 is your answer

Step-by-step explanation:

(2x+1)(x+8) - (x-3)(2x+1)

(2x+1)(x+8-x+3)

(2x+1)(11)

=22x+11

A triangle has sides with lengths of 20 centimeters, 48 centimeters, and 54 centimeters. Is the triangle a right triangle?

Answers

48 20 and 54 it going to make it all together it’s just 128

You spent $145 purchasing 3 student tickets and 7 adult tickets. Adult tickets cost $5 more than a student ticket. Find the cost of a student ticket. Find the cost of an adult ticket.

Answers

Answer:

$11 and $16

Step-by-step explanation:

let x be the cost of a student ticket then an adult ticket is x + 5 , then

3x + 7(x + 5) = 145 , that is

3x + 7x + 35 = 145

10x + 35 = 145 ( subtract 35 from both sides )

10x = 110 ( divide both sides by 10 )

x = 11

Student ticket costs $11 and adult ticket = x + 5 = 11 + 5 = $16

What factor is represented by the yellow shading in the model? [Hint: Include the overlapping area.]

Answers

Answer:

[tex]Fracton = \frac{1}{6}[/tex]

Step-by-step explanation:

Given

See attachment

Required

The fraction of yellow

From the attached image:

[tex]Yellow = 5[/tex]

[tex]Total = 30[/tex]

So, the fraction is:

[tex]Fracton = \frac{Yellow}{Total}[/tex]

[tex]Fracton = \frac{5}{30}[/tex]

Divide by 5/5

[tex]Fracton = \frac{1}{6}[/tex]

Answer: 4/5

Step-by-step explanation:

When calculating the discriminant if your answer was 16, what does that say about your roots?

Answers

Answer:

Your roots are equal to 16

7/8 ÷ 7/16 = Reduce your answer to the lowest terms.

Answers

I got 2/1= 2
You just divide and reduce

The weights in pounds of five cats are 12, 14, 12, 16, and 16. Find the mean, median, mode, and range of the data set.​

Answers

Jvucupjeghrjtkkffjjrhfb over cztTzvo xis divi. I thrush kB

Answer:

Mean: 14

Median: 14

Mode: 12, 16

Good luck!

Other Questions
Give gene combinations for each of the following dihybrid genotype:a) TTPPb) ttpp c) TtPP d) TtPp TIMEDDD!!! Question 36 (1 point)Which of the following is an example of culture?Comic booksClothing TrendsLanguageAll of the above Mr. Tough can grade the final exams in 12 hours. His assistant, Ms. Nice, can grade the same exams in 15 hours. What fraction of the exams can Mr. Tough grade in 1 hour, without any help? This is impossible. Please help me. I spent sooo loong on this and got it wrong. I don't have many points. Sorry about the 20 points. IT IS VERY URGENT!!!!!!!!!!!!!!!!! Please choose the right answer need help on question The area of the entire figure is 1 square unit A rectangular prism has a length of 5 cm, a width of 7 cm, and a height of 4 cm. What is the volume of the prism?Question 1 options:A: 39 cm cubedB: 16 cm cubedC: 140 cm cubed please help!!! please help!!Kari checks to see if the edge of the field can be lifted because she realizes that each previous task required a creative solution. Which sentence from the passage supports this statement? A. "She had to make choices about how she was going to complete each task." B. "So far each task had proved to be more complicated than it seemed at first." C. "She had been shoveling for days, but had she applied any original thought to the task?" D. "Kari gave the grass in her hands a shake and watched the pile of peppermint snow." Why did Major League Baseball owners support segregation by 1890?They feared that African Americans would not pay to watch white players.They wanted to pay their players less money than players in the Negro leagues earned.They feared that white audiences would not pay to watch African American players.They wanted their players to make as much money as players in the Negro leagues did. find the value of x. Round the length to the nearest tenth. How do you think the Lowell system affected production? Someone help plz make sure its right :) List the three parts of the cell cycle. Making the Most of MucusJust the name itself will make you giggle. It's a great word that conjures visions of slime and unpleasantness. It is perhaps the most annoying part of having a cold or allergies. Mucus, however, plays a very important role in defense of our bodies and our health. In fact, it's high time mucus got a lot more respect.First, there are some amazing facts about mucus that are worthy of respect. Humans produce about a liter of mucus every day, whether they are sick or not. Bony fish and some invertebrates (snails or slugs) also have mucus cells on the outside of their body. This external mucus creates a protective coating that prevents predators' toxins from doing harm. Humans produce mucus to protect our stomachs, our lungs, and several other systems.We tend to not like mucus because it is a considered a symptom or sign that something is wrong. We usually only see it when we are sick, and so we tend to dislike it. According to Michael M. Johns, III, MD, however, "mucus is incredibly important for our bodies." Johns, an assistant professor at Emory University, calls mucus "the oil in the engine" of our bodies. Without mucus, our engines, or bodies, would freeze up and stop working properly.Furthermore, mucus is not just the nasty gunk you see when you are sick. It lines the tissues in your mouth, your nose, throat, and lungs. It also is crucial in protecting your digestive system. Mucus puts a protective coating over the surfaces of these tissues, keeping them moist. Most of the time we don't notice mucus is making our lives better. It does its job quietly, making everything run smoothly, keeping our inner tissues soft and flexible enough to fight off invaders.Occasionally, though our mucus-making membranes go into overdrive. If you eat a hot pepper, your mucus membranes in your mouth and throat start producing extra mucus to protect you. If you come into contact with pollen, you may get a runny nose and start sneezing and coughing. When these things happen, your mucus systems start making more fluids to wash away the irritating particles. Mucus also has some antibodies that increase our ability to fight off bacteria and viruses.It's hard to appreciate what is essentially slime, but we have mucus for some very good reasons. It helps to keep us healthy and lets us know when our bodies are under attack. We would be wise to respect what our bodies do to keep us safe. So the next time you find yourself reaching for a tissue, remember mucus is your friend and ally.What's in a Name?Mucus is a great word, not only because it gives name to an important bodily function, but also because it is one of those words that simultaneously makes you feel grossed-out and giggly. Other words for this powerfully important human-health tool include slime and phlegm. Slang words for mucus include boogers and snot. All of these words have the same giggle-power, simply from the combination of consonants and vowels. By the way, mucus is an old word; it's been around since the mid-1600s and has roots back to Latin (mucere, to be moldy or musty) and Greek (myxa, mucus). While you may assume that words like snot and boogers are relatively new slang terms, they are not. Snot dates to 1560 and comes from an Old English word, gesnot, and has the same root as the word snout. The word booger is not quite as old but has been in use since the 1890s.Read this sentence from the main text:It's hard to appreciate what is essentially slime, but we have mucus for some very good reasons.What purpose does the word slime serve in this sentence? A. It introduces the idea that the presence of mucus has health benefits for most humans. B. It introduces the idea that bodies are under attack whenever there is mucus. C. It refers to most humans' opinion of mucus and contrasts with the more scientific term. D. It suggests mucus deserves the lack of respect it receives. 2. What was the instrumentation Franklin used to determine the structure of DNA?Multiple choice question.A)X-ray diffractionB)spectroscopyC)electron diffractionD)chromatography i missed a day of school and we started a new unit lol You start with a container that is 8L big and the temperature in the room is 326K.If the you take the container out in the heat at 352K, how big will it get? Madison had seven pizza boxes left over from her girls weekend and each pizza box there were 2/5 of a pizzas left how much total pizza was left from the weekend Plz help !! 7th grade math ! Write the quadratic equation whose roots are 6 and 3, and whose leading coefficient is 4.(Use the letter x to represent the variable.)