find the sum of x^2 + 3x and 2x^2 + 9x + 5

Answers

Answer 1

Answer:

[tex] 3 {x}^{2} + 12x + 5[/tex]

Step-by-step explanation:

[tex](x^2 + 3x) + (2x^2 + 9x + 5) \\ \\ = x^2 + 3x + 2x^2 + 9x + 5 \\ \\ = {x}^{2} + 2 {x}^{2} + 3x + 9x + 5 \\ \\ = 3 {x}^{2} + 12x + 5[/tex]


Related Questions

help me fast will give brainless

Answers

Answer:

b

Step-by-step explanation:

to solve for m, you need to leave the m by itself.

since 14(1/6) on the m side, it needs to be eliminated. To do that, you need to subtract 14(1/6) on both sides. Therefore, the answer is B.

HELP ME ASAP PLZZ
Which table represents the function y = 3x – 1?


Input x 1 2 3
Output y 4 7 10

Input x 0 1 2
Output y -1 -2 -3

Input x 0 1 2
Output y -1 2 5

Input x 2 3 4
Output y 2 4 6

Answers

Answer:

Input x 0 1 2

Output y -1 2 5

Step-by-step explanation:

just plug in all the answers for x and solve the equation. like this:

y=3*0-1=

y=0-1=

y= -1

---------------------

y=3*1-1=

y=3-1=

y=2

--------------------------

y=3*2-1=

y=6-1=

y=5

------------------------

all the results match with the table

hope I helped God bless you

Put these numbers in order from smallest to biggest. Standard form need help ASAP!!

Answers

C because when you expand all the numbers, they go in the same order as c has them.

Y=__X+__ ??? plz answerrr

Answers

Answer:

y=3 over -6x + 5

Step-by-step explanation:

put the 3 and -6 in a fraction

If every 7 minutes I get 10.64k dollars how long will it take for me to get 4.5 million dollars

Answers

Answer:

approx 2960.53 minutes

Step-by-step explanation:

I believe it is close to 200. .

8x8x8=_______=_______​

Answers

Answer:

8*8*8= 8^3= 512

Step-by-step explanation:

Answer:

8x8x8= 8^3 = 512

Step-by-step explanation:

Hope this helps

Simon set up his tent in his backyard last night. His tent is 6 feet tall. To secure it to the ground, he attached a rope from the top of the tent to the ground 8 feet away from the bottom of the tent as shown below. How many feet long, R, is the rope?

Answers

Length of Simon's tent = 6 feet

Distance from the bottom of the tent to the tent's base = 8 feet

Let the length of rope be R.

The tent and the rope forms a right angle triangle where the rope is the hypotenuse.

We know that :

[tex]\color{hotpink} \tt{hypotenuse}^{2} \color{plum}= {base}^{2} + {height}^{2} [/tex]

Which means :

[tex] = \tt {R}^{2} = {6}^{2} + {8}^{2} [/tex]

[tex] =\tt {R}^{2} = 36 + 64[/tex]

[tex] = \tt {R}^{2} = 100[/tex]

[tex] =\tt R = \sqrt{100} [/tex]

[tex]\hookrightarrow\color{plum}\tt \bold{R = 10 \: feet}[/tex]

Thus, the hypotenuse of this triangle = 10 feet

▪︎Therefore, the length of the rope = 10 feet

Rewrite the function by completing the square.
f(x) = x^2 – 8x – 2

Answers

Answer:

[tex](x-4)^2-18[/tex]

Step-by-step explanation:

[tex](x^2-8x-2)\\= (x^2-8x+16)-18\\= (x - 4)^2 - 18[/tex]

Answer:

-4 and -8 (Khan)

Please help due in 3 min

Answers

The color Orange is the answer

which of the following represents a function of protein within a organism ?


A.storing genetic information
B.storing energy
C.generating heat
D.fighting infection​

Answers

Answer:

A

Step-by-step explanation: ITS RIGHTTTTTTTTTTTTTTTTT

Use properties of operations to complete the equivalent expression. 5(y+9)=​___y+​___ 5(y+9)=nothingy+nothing

Answers

Answer:

5y+45

Step-by-step explanation:

PLEASE HELP LOTS OF POINTS !!

Answers

It would be 24 cm i’m pretty sure, cause if you

A new bank customer with ​$4,000 wants to open a money market account. The bank is offering a simple interest rate of 1.2​%.

a. How much interest will the customer earn in 30 ​years?
b. What will the account balance be after 30 ​years?

Answers

Answer:

Interest: $1440

Total Account Balance: $5440

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 1.2%/100 = 0.012 per year,

then, solving our equation

I = 4000 × 0.012 × 30 = 1440

I = $ 1,440.00

The simple interest accumulated

on a principal of $ 4,000.00

at a rate of 1.2% per year

for 30 years is $ 1,440.00.

The simple Interest is $1440 and the total Account Balance: $5440.

What is simple interest?

Simple interest is calculated just on the loan's principal amount, whereas compound interest is calculated on both the principal and the cumulative interest.

First, converting R percent to r a decimal,

r = R/100 = 1.2%/100 = 0.012 per year,

Then, solving our equation,

I = 4000 × 0.012 × 30 = 1440

I = $ 1,440.00

The simple interest accumulated,

on a principal of $ 4,000.00

at a rate of 1.2% per year

for 30 years is $ 1,440.00.

Therefore, the simple Interest is $1440, and the total Account Balance: $5440.

To know more about simple interests follow

https://brainly.com/question/2294792

#SPJ2

Anyone know the answer for this

Answers

Answer:

D is the answer.

8×2×3×6×5×4

helpppppppp meee
twentycharacters

Answers

Answer:

The answer is A

(multiple choice) plz help me!!

Answers

[tex]8 \sqrt{5} is \: the \: length[/tex]

Step-by-step explanation:

[tex]( {16})^{2} = ( {x})^{2} - ( {8})^{2} \\ 256 = {x}^{2} - 64 \\ 256 + 64 = {x}^{2} \\ \sqrt{320} = \sqrt{ {x}^{2} } \\ 8 \sqrt{5} = x[/tex]

solve for w a/h= l • w

Answers

A/h=I X W hope it helps.

List ALL the factors of 18 in increasing order

Answers

Answer:

try 45 its a great answer

Pamela is making cupcakes. The recipe uses 5 ounces of chocolate fudge to make 20 cupcakes.
How many ounces of chocolate fudge will be used to make 60 cupcakes?
A. 3 ounces
B. 4 ounces
C. 12 ounces
D. 15 ounces

Answers

Answer:

D 15 ounces

Step-by-step explanation:

If 5 ounces for 20 cupcakes

60/ 20 =3

5 x 3 = 15

Hope this helps ^-^

7. Calculate Rock A contains
10% quartz and 45% calcite.
The rest of the rock is mica.
What percentage of the rock
is mica?

Answers

Answer:

45% of the rock is mica

Step-by-step

10% + 45% = 55%. 100% - 55% = 45%

jerry observed 5 head in tosses of his coin. Do you think this was a fair coin?

Answers

It was 50/50 chances

Help me please !!!



And thank you

Answers

Answer:

804.4

Step-by-step explanation:

the formula for the volume of a cube is the side length cubed,

so:

(9.3)(9.3)(9.3) = 804.357

then round it to 804.4

hope this helped!

Which number line shows the solution to the inequality
4x + 52 92
- 4 2 0 2 4
(
HH
- 4-2 0 2 4
(
-4-2024
-4-2024

Answers

Answer: its C

Step-by-step explanation: I have the same worksheet

7 x n =42+7
A.6
B.7
C.42
D.56
E.294

Answers

Answer:

B 7

Step-by-step explanation:

7 x n = 42 +7

42+7=49

7xn=49

49÷7 = 7

n=7

Does (0, 0) make the equation y = 9x − 5 true?

Answers

Answer:

no

Step-by-step explanation:

y = 9x − 5

The point (0,0) means x=0 and y=0

Substitute this into the equation and see it is true

0 = 9*0 -5

0 = 0-5

0 = -5

This is not true so the point is not a solution.

Use the table and the graph to answer the questions.
Function 1
x −1 −2 −3
y 4 6.5 9
Function 2

(a) What is the rate of change for each function? Show your work.
(b) Which function has the greater rate of change?

Answers

Answer:

_24

Step-by-step explanation:

x −1 −2 −3

y 4 6.5 9

Function 2


What is the measure of

Answers

Answer:

<Ber=<kem(vertically opposite angle)

9x-17=3x+31

9x-3x=31+17

6x=48

x=48/6=8

<kem=3×8+31=55°is answer

What is the sum of (4x2+5x – 12) + (7x2 – 6x + 7)?

Answers

The sum of (4x2+5x-12) + (7x2-6x+7)= -x+17

What property is this?
5+(6+p) = (5+6) + p

Answers

Answer:

distributive property

Step-by-step explanation: I am 88% sure


Raja drew a circle and labeled the center S. He used the expression 12. to find the
circumference of the circle in inches. Which of the following could be the circle Raja drew?

Answers

Answer:a

Step-by-step explanation:

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