Mathematics High School

Express as a trinomial.

(2x+1)(x+9)

Answers

Answer 1

Answer:

2x^2 + 19x + 9

Step-by-step explanation:

Using the FOIL method (ask me via comments if you don't know what it is), we expand it to 2x^2 + 18x + x + 9, then we add like terms, equal to 2x^2 + 19x + 9.

Answer 2

The trinomial expression for (2x + 1)(x + 9) is [tex]2x^2 + 19x + 9[/tex].

To express (2x + 1)(x + 9) as a trinomial, you need to perform the multiplication.

Distribute each term from the first parenthesis to each term in the second parenthesis:

(2x + 1)(x + 9) = 2x * x + 2x * 9 + 1 * x + 1 * 9

Now, simplify the expression:

[tex]= 2x^2 + 18x + x + 9[/tex]

Finally, combine like terms:

[tex]= 2x^2 + 19x + 9[/tex]

So, (2x + 1)(x + 9) expressed as a trinomial is [tex]2x^2 + 19x + 9.[/tex]

To know more about trinomial, refer here:

https://brainly.com/question/16347049

#SPJ6

Related Questions

Plzzz help me!!! ASAP

Answers

The answer is 7 and 8

Which of the statements about the y-axis are true? I.The y-axis is a vertical number line that passes through the origin.II.The y-axis intersects the x-axis at the point (0 , 0).III.The y-axis is the first coordinate in an ordered pair that describes the vertical distance from the origin.IV.The y-axis is a horizontal number line that passes through the origin.​

Answers

Answer:

No i does not well it will be 0,5 or any other number but the x wont change

Step-by-step explanation:

Will mark brainliest if get the correct answer.

Answers

Answer:

Perimeter of rectangle before folded = 56 in

Total area after folding = 156 sq in

Step-by-step explanation:

Rectangle before folded:  l = 16 and w = 12

                                           P = 2(16) + 2(12) = 32 + 24 = 56 in.

Figure after folding:   Area of trapezoid + area of rectangle

Area of trapezoid = h([tex]b_{1} + b_{2}[/tex])/2 = 6(4 + 16)/2 = 60

Area of rectangle = lw = 16(6) = 96

Total area after folding = 60 + 96 = 156 sq in.

Note:  You could also find the area after folding by substracting the areas of the two triangles in the corners from the area of the original rectangle.  Your choice.  OK?

WILL GIVE BRAINLIEST IMMEDIATELY!!!!!!!
IF YOU PUT RANDOM NONSENSE ANSWERS OR ADVERTISE SCAM WEBSITES I WILL REPORT YOU AND EMAIL BRAINLY.
4. Consider the circle to the right.
Determine m∠KNY.
SHOW ALL, I REPEAT, ALL STEPS TO BE MARKED BRAINLIEST. I will give brainliest ASAP.

Answers

Answer: Hope this helps  

C. 65 this might be the answre bc of the diamiter.

I REALLY NEED BRAINLIEST!!

I think it is 65 hope this helps and i ne

Step-by-step explanation:

Answer: okay so this is a long process

Step-by-step explanation:

the measure of angle N is 65 degrees because when calculating the angle, it is always half of the arc it makes. K is 30 because the arc it makes is 60 degrees and half of 60 is 30. Y is 45 because half of 90 is 45. All of the inside angles of a triangle add up too 180 degrees. So add 30 to 45 and you would get 75, then subtract 75 from 180 to get 105. So the measure of KNY is 105 degrees.

A+6,when a=2?


Pls answer

Answers

Answer:

8

Step-by-step explanation:

a + 6; a = 2

2 + 6 = 8

Thus, The answer is 8

-TheUnknownScientist

Students in middle school and high school were surveyed about whether they have taken the SAT. Some of the survey results are listed here.

37% of middle school students have taken the SAT.
4% of high school students have not taken the SAT.

This information is shown in the two-way frequency table below. Drag numbers into the empty spaces to complete the table.

Answers

It’s a virus don’t believe it

find the mean of the data set down below. 7, -3, 6, -2, 8, 7, -4, 5, 3

Answers

The mean is the average of the numbers so the mean = 3

Please help meee! Math makes my brain hurt :(

Answers

The answer should be x=-2

Pls find B asap.....

Answers

Answer:

Point B is at coordinate point (7,9)

One positive number is 2 less than another. The sum of their squares is 34. What is the smaller number?

Answers

Answer:
The smaller number is 3. The number 3 squared is 9, plus the other number 5 squared, which is 25. when you add them, you get 34

Step-by-step explanation:
x = first number
y = second number
a. x+2 = y
b. x^2 + y^2 = 34
Replace y from equation a into equation b:
x^2 + (x+2)^2 = 34
Expand it
x^2 + x^2 + 4x + 4 = 34
2*x^2 + 4x = 30
2x^2 + 4x - 30=0
solving x:
x = -5 and x =3 , it says it is a positive number, then it is x is 3
and the second number, y = x + 2
y = 5
Lets test it!
3^2 + 5^ 2 = 9 + 25 = 34

Someone help me I need to get this finished by tomorrow ASAP

Answers

X=2 shown in the work below.

Solve it please 25 Points!

Answers

We can’t see the problems can you give us a link
We cant see problems

Heelp me, please.................

Answers

Answer:

B

Step-by-step explanation:

5. Krista wants to paint her
house. She buys 7 gallons of
paint. She uses of the paint on
the front of her house and then
buys 14 more gallons of paint.
How many gallons of paint does
she have left?

Answers

Answer:

7

Step-by-step explanation:

Silas was curious if sample minimum was an unbiased estimator of population minimum. He started with a large
normally distributed population of test scores whose minimum was 51 points.
He then took a random sample of 6 tests and calculated the minimum of the sample. He replaced those tests
and repeated this process for a total of 40 trials. His results are summarized in the dotplot below, where each
dot represents the minimum score from a sample of 6 tests.
:
..
TATUS
50
70
75
55
60
65
Sample minimum

Answers

Answer:

Sample minimum appears to be a biased estimator since it consistently overestimated the population minimum.

Step-by-step explanation:

I checked the answer

which value in the set (2,3,48,96) is a solution of the equation 24+x=72

Answers

Answer:

48

Step-by-step explanation:

24+x=72

Isolate x

24+x=72

-24    -24

x=48

Gina is 16 years older than her nephew Paul. In 3 years, she will be 3 times older than Paul. How old are Gina and Paul currently?

Answers

9514 1404 393

Answer:

Paul: 5Gina: 21

Step-by-step explanation:

In 3 years, the 16-year age difference will be 2 times Paul's age. (3p -p = 2p) Then, Paul will be 8.

Paul is 5 now, and Gina is 21.

Help Resa
Find the volume of this object.
Use 3 for a
Volume of a Cylinder
V= r2h
Volume of a Cone
V= Arh
3
7 cm
!6cm
V
V ~ [?]cm3
Enter

Answers

Answer:

Volume of given figure = 113.12 cm²

Step-by-step explanation:

Given:

Radius of cylinder = 4/2 = 2cm

Radius of cone = 4/2 = 2 cm

Height of cylinder = 7 cm

Height of cone = 6 cm

Find:

Volume of given figure

Computation:

Volume of given figure = Volume of cylinder + Volume of cone

Volume of given figure = πr²h + (1/3)πr²h

Volume of given figure = (22/7)(2)²(7) + (1/3)(22/7)(2)²(6)

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Volume of given figure = (22)(4) + (22/7)(4)(2)

Volume of given figure = 88 + 25.14

Volume of given figure = 113.12 cm²

3x+4y=25 x+5y=23
What does the variable of x and y represent in the system of equations

Answers

x= 1/27

Heart if it helps!

Point form : (3,4)
Equation form : x = 3 , y = 4

the last parttttttttt

Answers

Answer:

Step-by-step explanation:

35x2^10

Answer:

35,840

Step-by-step explanation:

(7 · 2^5) · (5 · 2^5) = (7 · 32) · (5 · 32) = 224 · 160 = 35,840

Please help!: Mrs. Carter baked a cake that was in the shape of a rectangular prism. The cake was 24 inches long, 15 inches wide and 3 inches high. She spread frosting on all four sides and the top. How many square inches of frosting did she use?

Answers

rectangle base: 24 x 15 = 360

triangle: 15 x 3 x 1/2= 45 x 1/2 = 22.5 x 4 (each side) 90 inches

total: 360 + 90 = 450 inches :)

someone please help me out on this problem

Answers

Answer:

[tex]x^{2}[/tex]+[tex]y^{2}[/tex]=9

Step-by-step explanation:

the equation for graphed circles centered at (0, 0) is

[tex]x^{2}[/tex]+[tex]y^{2}[/tex]=[tex]r^{2}[/tex]

and 3 is r (the radius)

May someone please help me with this:)

Answers

Answer:

i think its 64

Step-by-step explanation:

Volume of a cylinder is V=pi(r)2h

Radius =2.
Height =4.
Pi=3.14.

V= 3.14(2)2(4).

Volume = 50 .24 cm^2

help
i will give brainly

Answers

Answer:

I think its store A.

Step-by-step explanation:

Correct me if I am wrong please

Solve-2(x – 4)2 – 3 = 15 by using the square root property.

Answers

Answer:

[tex]x = -\frac{1}{2}[/tex]

The coordinates of ADEF are D(3,3), E(8,3), and F(6,9). If you translate ADEF 3 units right and 2 units down, what are the coordinates of D'?
The coordinates of D'are (Type an ordered pair.)
PLEASE HELP I WILL MADK BRAINLIEST

Answers

Answer:

D(6,1) E(11,1) F(9,8)

Step-by-step explanation:

Just add 3 to the first number of each of the points since you're moving it right by 3 units (right is a positive value) and subtract 2 from the second number (since going down is a negative factor)


In an exam a student scored 60 marks out of
a possible 80. What percentage is this?
?​

Answers

Answer:

75%

Step-by-step explanation:

Solve for x. Round answer to the nearest tenth.
17
54°
х

Answers

The question is unclear. Maybe you can edit it?

Plz help I’m bad with angles

Answers

Answer:

Complementary angles,7 & 83

Supplementary angles, 97 & 83

Vertical angles, 83 & 83

Step-by-step explanation:

Complementary angles add up to 90°

Supplementary angles add up to 180°

Vertical angles are equal

Harrison plays a game in which he uses a net to catch balls that are randomly launched from holes in the ground. The height of one ball after t seconds is represented by the function f(t) = –16t2 + 20t.



After how many seconds does the ball return to the ground? Round to the hundredths place as needed.

Answers

3 sishsusbsusbsusnsjsnsn
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