PLS HELP!!!!!
which polynomial is a perfect square trinomial?

A. 49x^2 - 28x + 16
B. 4a^2 - 20a + 25
C. 25b^2 - 20b - 16
D. 16x^2 - 24x - 9

Answers

Answer 1

Answer:

B

Step-by-step explanation:

We have to find which trinomial has:

1) two terms that are the perfect square of two numbers

2) a terms that is the double product of the two numbers

the first condition is satisfied by A and B, but only B satisfied the second., in fact the trinomial can be rewrite as: (2a-5)^2

Options C and D are traps because the square of a number can’t be negative


Related Questions

Find the value of x. Show your work of a piece of paper

Answers

Answer:

3

Step-by-step explanation:

x/1= 9/3

solve to get 3

Answer:

X = 3

Step-by-step explanation:

1. Find the difference between 1 and 3. The larger triangle is being multiplied by 3

2. To find x you must divide 9 by 3 since the bigger triangle is 3 times bigger then the smaller one. X then equals 3

Hope that helps

Let me know if it is confusing

Lorenzo reads at a rate of 45 words per minute. If he reads at a constant rate, how many words can he read in 6 minutes?

Answers

Answer:

270

Step-by-step explanation:

45 * 6 = 270

Name the quadrilateral that has a right angle and four congruent sides.
A. Parallelogram
B. Rectangle
C. Rhombus
D. Square

Answers

Answer:

D. Square

It is the only one with all right angles and sides the same length

3V3
х
60°
Find the values of x and y. Write your answers in simplest form.
X=
y=

Answers

Answer:

X=3

y=6

Step-by-step explanation:

[tex]tan60=\sqrt{3}=\frac{3\sqrt{3} }{x} \\\\x=3[/tex]

-----------

[tex]sin60=\frac{\sqrt{3} }{2} =\frac{3\sqrt{3} }{y} \\\\y=6[/tex]

hope it helps...

have a great day!!

Solve the system.
2x + y = 3
-2g = 14 – 6x
Write each equation in slope-intercept form.


Answers

Answer:

x = 2, y = -1

Step-by-step explanation:

Assuming it should be y not g

y = -2x + 3

-2y = -6x + 14

y = 3x - 7

-2x + 3 = 3x - 7

10 = 5x

x = 2

y = -1

Hey guys!
Please help me out with these questions. Tmrw I have an exam... Will mark BRAINILIEST for the answer explaining proper steps. If I sound rude, please forgive me, I'm just stressed out.....

Thanks ​

Answers

Answer:

Step-by-step explanation:

Please help me with this homework

Answers

to find the missing side of a right triangle you add the two sides and it equals the one side or a2+b2=c2
X = 12

You have to use Pythagorean Theorem here.

please help me this is geometry and i am so clueless!!!!!

Answers

Answer/Step-by-step explanation:

Problem 1:

E is the centroid of the triangle.

Centroid theorem states that the centroid is ⅔ of the distance of each vertex to the midpoint of the side opposite each vertex.

This implies that:

AE = ⅔(AD)

AE = 21

Therefore:

21 = ⅔(AD)

3*21 = 2(AD)

(3*21)/2 = AD

31.5 = AD

AD = 31.5

Problem 2: Apply the centroid theorem. Thus:

DE = ⅓(AD)

DE = 12

Therefore,

12 = ⅓(AD)

12*3 = AD

36 = AD

AD = 36

Tuesday Evaluate the Expression: Use PEMDAS. 80 - 42+8​

Answers

Answer:

30

Step-by-step explanation:

Using BODMAS

*80-50 (42+8)

*30

help please . thank you

Answers

PLEASE DONT USE THAT LINK

What is The difference of 3-3÷2

Answers

Answer:

1.5

Step-by-step explanation:

Answer:

1.5

Step-by-step explanation:

how do you solve this two step equation? 5 -2/3x =3​

Answers

Answer:

x = 3

Step-by-step explanation:

I will assume you meant 5 - (2/3)x = 3.  This simplifies to -(2/3)x = -2, or

(1/3)x = 1, so that x = 3.

                                                         2

"2/3x" could be interpreted as   ---------  which would give us a very different

                                                         3x                 result.  Use parentheses to

                                                                               lessen the chances of

                                                                                misinterpretation.

How do you work the problem 6y < 18 out

Answers

Answer:

y<3

Step-by-step explanation:

6y<18

y<18/6

y<3

I hope this helps

Answer: you can see what number times 6 gets you 18 so it would be y<3

Step-by-step explanation:

Find the 100th term for the sequence. -9,-4, 1, 6, 11, .......

Answers

Answer:

486

Step-by-step explanation:

for the 2nd term, add 5 to -9

for the 3rd, add 5 × 2 to -9

for the 4th, add 5 × 3 to -9

:

for the 100th, add 5 × (100 - 1) to -9

=> 5 × 99 + (-9)

=> 486

Given ^ABC~^EFD, find the value for x.

Answers

Answer:

4

Step-by-step explanation:

2x-3 = 5

2x = 8

x = 4

Hope this helps

I hope this helps you

in similar triangle sides are can be rate

ABC~EFD

AB/EF=BC/FD=AC/ED

5/2x-3=6/FD=4/9

9.5/4=2x-3

11.25+3=2x

2x=14.25

x=7.125

the differences of 4 and a number x is 14

Answers

Answer:

x=18

Step-by-step explanation:

x-4=14

  +4  +4

x=18

i think it might be 10? :)

What is the answer to this? Please help.

Answers

Answer:

1441.08 cubic inches

Step-by-step explanation:

Blue

V = L * W * H

L = 15

W = 9

H = 9

V = 9 * 9 * 15 =                       1215 CU IN

YELLOW

Diameter = 6

Height = 8

radius = d/2

radius = 6/2

radius = 3

Volume = pi*r^2 * h

Volume = 3.14*3^2 * 8

Volume =                                226.08    Add

                                               1441.08

 

15 is 9 than j what is j in this question

Answers

Answer:

6

Step-by-step explanation:

15 is 9 more hence you subtract 9 from15

Hope this helps

A ball is dropped from a height of 180 meters. The height of the ball can be represented by
-5t2 + 180, in meters, when t represents the time in seconds since the ball was dropped.
Which expression represents the height of the ball In factored form?

A) -5(t+6)^2
B) -5(t-6)^2
C) -5(t+6)(t-6)
D) (5t-3)(80t+3)

Answers

I think it is C but it also could be B as well

The price of a watch was increased by 20% to £198.
What was the price before the increase?

Answers

Answer:

$165 Hope this helps! May I have brainliest? I need to level up?

Step-by-step explanation:

To find the original price before the increase, divide the new price by 1 + the percent of increase.

198 / 1.20 = 165

The original price was $165

A spinner is divided into blue, green, and red parts. George spins the spinner 300 times. A table of outcomes is shown. Based on this data, what is the estimated probability of the spinner landing on red?

A) 0.45
B) 0.50
C) 0.34
D) 0.23

blue:91
green:107
red:102

Answers

The estimated probability of the spinner landing on red is 0,34

A population of 130,000 grows 4% per year for 16 years.

How much will the population be after 16 years?

Answers

Let's consider the scenario after each year:

After the zeroth year, the population is: 120 000(1 + 0.04)⁰

After the first year, the population is: 120 000(1 + 0.04)¹

After the second year, the population is: 120 000(1 + 0.04)²

...

Thus, we can find the general rule:

After the nth year, the population is: 120 000(1 + 0.04)ⁿ

And after the 16th year, the population is 120 000(1 + 0.04)¹⁶ = 224 758 (rounded to nearest whole number)

Here's a problem for you to try.
Find the sum and express it in simplest form.
(2x² + 3x - 4) + (x²-x-2)
Enter the correct answer.
OOD
DONE
Clow all
ĐOO

Answers


3x^2 + 2x - 6

Just add the same terms together. You don’t need to do anything else in this question.

The graph below shows the path of a submarine


What is the range of this function?

a) 0
b)-300 ≤ y ≤ 0

c)0 ≤ y ≤ 80

d)-300

Answers

Answer:

b

Step-by-step explanation:

a submarine cant go above 0 and it shows on the graph the lowest it will go is -300

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!

Answers

Step-by-step explanation:

X = 10 (use pyth)

Y = 11.18(use pyth)

NO SENDING VIRUS LINKS

During his geometry class, Marvin draws a circle with a compass.
The circle has a diameter of 7 inches.
22
What is the circle's circumference? (Use =
7
Round your answer to the nearest inch.
Answer:
inches.

Answers

22.99 in





Is the answer

helppppp I really need help

Answers

The answer is b I’ve done this before it’s not really that easy lol but yea it’s b

Cuantas cifras se emplean para numerar las 48 paginas de una revista?

Answers

Answer:

Para hacer una revista de más de 16 páginas, se cotejan múltiples 'secciones' dobladas ... Entonces 16, 32, 48 páginas etc. ... usted con información técnica sobre números de página, encuadernación y cualquier otra impresión, correo o logística relacionada preguntas. ... El uso de este sitio está sujeto a los Términos y condiciones de uso de nuestro sitio web, que están disponibles aquí.

Step-by-step explanation:

Mas de 16 páginas de una revista

can someone please explain i am having a hard time with the math homework​

Answers

Answer:

x= -1

Step-by-step explanation:

you have five of the bigger pieces and 6 of the smaller pieces and you have to get to a one. I plugged in the awnser choices and one worked for me

I need help and fast

Answers

B it is B not c or a it is b

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