Mathematics College

simplify the expression -2x(x+3)

A: -x -6
B: -x + 6
C: -2x + 6
D: -2x - 6​

Answers

Answer 1

Simplify the expression -2x(x+3)

-2x(x+3)

-2x²-6x

I don't know if I'm wrong because my answer isn't an option.

Related Questions

Find all exact solutions on the interval [0,2π) csc^2(x)-9= -5

Answers

Answer:

d

Step-by-step explanation:

Which difference is about 10?

A. 33.2-28.4


B. 70.9-58.7


C. 42.5-16.8


D. 65.7-65.6

Answers

the correct answer should be B

Answer:

Step-by-step explanation:

b

The average vertical jump for a player on the high school basketball team is 30 inches. The actual height varies by
at most 2 inches. Write and inequality that gives the range of the actual height h (in inches) of the players' verticals.

Answers

Answer: 28 <= h <= 32

Step-by-step explanation:

the actual height can be at most 2inches higher or lower than the average

Alex and her friends went out to lunch at the diner. The bill for lunch was $34.56 which included an 8% sales tax. How much was the price of the lunch before tax? ​

Answers

Answer:

34.48

Step-by-step explanation:

8% as a decimal is 0.08

34.56 - 0.08 = 34. 48

If you earn 12000 per month and you except your earnings to increase by 10% per year,how much do you think you will be making per year in 5 years?(round hundredths place)

Answers

Step-by-step explanation:

1 month=12000/=

12months=144000000/=

1 year=144000000

5years=720000000/=

7200000.000/=

Question in the picture

Answers

Answer:

hope this helps.......

Which equation is the inverse of 2(x - 2)2 = 8(7 + y)?
O -2(x - 2)2 = -8(7 + y)
O yx2-
o yo hx²-x-6
y=-2+ 28+4x
O y=2+28+4x

Answers

Answer:

-2(x-2)2=-8(7+y)

Step-by-step explanation:

Inverse means just -

Lets solve afterwards

[tex]\\ \sf\longmapsto -2(x-2)2=-8(7+y)[/tex]

[tex]\\ \sf\longmapsto (-2x+4)2=-56-y[/tex]

[tex]\\ \sf\longmapsto -4x+8=-56-y[/tex]

[tex]\\ \sf\longmapsto -4x+y=-64[/tex]

[tex]\\ \sf\longmapsto 4x-y=64[/tex]

Answer:

-2(x - 2)2 = -8(7 + y)

Step-by-step explanation:

2(x - 2)2 = 8(7 + y)

(2x - 4)2 = 56 + y

4x - 8 = 56 + y

4x - 8 - 56 = y

4x - 64 = y

If option A

-2(x - 2)2 = -8(7 + y)

(-2x + 4)2 = - 56 - y

- 4x + 8 = - 56 - y

- 4x + 8 + 56 = - y

- 4x + 64 = - y

4x - 64 = y

(RIGHT)✔

I’ll give BRAINLIEST pls help

Answers

Answer: EQUATIONS OF HORIZONTAL AND VERTICAL LINES. In general, linear equation is a function whose graph is a straight line and it is typically written as. y = mx + b, where m is the slope and b is the y-intercept. An horizontal lines goes left and right and its equation is in the form of. y = b,

Step-by-step explanation:

tonight's attendance was 100 more than double the attendance last night. If 500 attended tonight, how many attended last night?

Answers

Answer: 200

Step-by-step explanation: 200 doubled would be 400 and it says that tonights attendence was 100 more than the doubled which would add up and equal 500 (400+100=500) so 200 is your answer.

Which ordered pairs is a solution to -5x + 3y > 12?
(3,9)
(-5,5)
( (3-6)
0 1(-2,-5)
(2,8)
)
O 1 (-6,0)

Answers

Answer:

(-5,5)

Step-by-step explanation:

if you replace x and y with the numbers, the answer will be true.

Who can answer this?

Answers

Answer:

B

Step-by-step explanation:

B
Explanation: it’s mirroring the other side

EVALUATE THE FUNCTION REQUESTED. WRITE YOUR ANSWER AS A FRACTION IN LOWEST TERMS
I WILL GIVE BRAINLIEST I NEED THIS ANSWER ASAPP!

Answers

Answer:

• From trigonometry ratios:

[tex]{ \boxed{ \rm{ \sin(A) = \frac{opposite}{hypotenuse} }}} \\ [/tex]

opposite → 28hypotenuse → 35

[tex]{ \rm{ \sin(A) = \frac{28}{35} }} \\ \\ { \boxed{ \boxed{ \rm{ \: \sin(A) = \frac{4}{5} \: }}}}[/tex]

Order of operations
18 ÷ 9 - 4 x 15

Answers

Answer: I'm almost 100% its -58

it's considered theft when someone forces you to give them $1,000. why is it generally not considered theft when the government forces you to give them $1,000 in taxes?

Answers

Answer:

The government has more power than a normal person. I don't support what the government is doing but they do have power.

its because the government has more control than a normal person. it would be considered theft if it was only the normal person

Which of the following values of x would not be in the domain of the function defined by f(x) = x-2/x+3?

Answers

Answer:

x = 7 is not there in the domain of the function.

Step-by-step explanation:

The value of x = -3 would not be in the domain of the function

We have the following information available from the question is:

The function is :

[tex]f(x) =\frac{x-2}{x+3}[/tex]

Determine the values of x would not be in the domain of the function

Now, According to the question:

The function is :

[tex]f(x) =\frac{x-2}{x+3}[/tex]

Let the denominator equal to zero: x + 3 = 0

Rearrange unknown terms to the left side of the equation.

x + 3 = 0

x = -3

Hence, The value of x = -3 would not be in the domain of the function.

Learn more about Function at:

https://brainly.com/question/30721594

#SPJ3

(b) A number increased by -8 is greater than 12

Answers

Answer:

x+-8 > 12 Hope this helps.

A piece of wire 3/7 m long as we cut into six pieces of the same length what is the length of each piece

Answers

Answer:

Each piece is 1/7 m long

Step-by-step explanation:

Wire length = 3/7 m

Pieces = 6

1 piece = 3/7 ÷ 6

= 3/7 ÷ 6/1

= 3/7 × 1/6

= 1/7 m

Add 2/5 + 3/6 + 1/4 0 1 11/60 O 13/20 o 17/20 1 13/60 ​

Answers

Answer:

Step-by-step explanation:

-(8/11)/(-3/5) = -(8/11)*(-5/3)

-(8/11)*(-5/3) = 40/33  [ or 1 7/33]

I can't interpret the rest of the question.  I see:

"Add 2/5 + 3/6 + 1/4 0 1 11/60 O 13/20 o 17/20 1 13/60"

What is the total price of a $45.79 item when a 7% sales taxe is added

Answers

Answer:

The total price after tax is $48.99

Step-by-step explanation:

Answer:

you have to put the 45.79/ 7% That's the taxes and you have to check your work first if you get something else different than a higher number you divide it again in long division and then if that doesn't work try to multiply in decimals

Please help me I don’t understand this

Answers

Answer:

V/pi^2 = h

Here is your answer my dear friend-

C. r^2 = Vpi h

please help this is due in 10 minutes!!!!!!

Answers

Answer:

Step-by-step explanation:

you just gotta add all the side-lengths together and consider each grid square as 10 instead of 1.

so 70 + 40 + 20 + 60 + 20 + 40 i believe.

this all equals 250.

ask your teacher if its a type, because there's no 250 on there. grab a calculator or something as proof.

Eggs cost $5.40 per doven how many is twenty five eggs cost

Answers

Answer:

135.000

Step-by-step explanation:

5.40 x 25 = 135.000

Answer:

135.000

Step-by-step explanation:

5.40×25= 135.000

Describe the domain and range of this function

Domain:

Range:

Find the following values:

f(18)=
f(5)=
f(17)=

NO LINKS/NO ASSESSMENTS!!! ​

Answers

Answer:

According the graph we have:

Domain: set of input values [0, 26]Range: set of output values [0, 20]f(18) = 16f(5) = 2f(17) = 14

In the diagram shown, C is the midpoint of BD. What is the
length of AC?
Set up an equation based on the given information, solve
for x, and plug answer back in to answer the question

Answers

Answer:

AC = 20

Step-by-step explanation:

C is the midpoint of BD.

That means that BC = CD

BC = x + 4

CD = 3x - 10

x + 4 = 3x - 10                       Subtract x from both sides

4 = 3x - x - 10                       Combine

4 = 2x - 10                            Add 10 to both sides

4 + 10 = 2x - 10 + 10            Combine

14 = 2x                                 Divide by 2

14/2 = 2x/2                          Combine

7 = x

AC = AB + BC

AC = 2x - 5 + x + 4

AC = 3x - 1

AC = 3*7 - 1

AC = 21 - 1

AC = 20

Please help me ASAP

Answers

the answer should be A

PLEASE HELP ME AND HURRY TOO NO LIBKS PLEASE I WILL GIVE BRAINLIEST

Answers

first one is denominator, then opposite of denominator.. i would wait for someone else to answer. but i’m pretty sure that’s correct. sorry if it is incorrect.. good luck on the rest of your assessment!!

HELP PLEASEEE, I WILL MARK BRAINLEST!

Answers

9514 1404 393

Answer:

∠a = 133°∠b = 15°∠c = 75°∠d = 58°

Step-by-step explanation:

We don't know the definitions, properties, postulates, or theorems on your list, so we'll use the following:

a right angle measures 90°a straight angle measures 180°the acute angles in a right triangle total 90°an exterior angle of a triangle is equal to the sum of the remote interior anglesthe measure of an angle is equal to the sum of the measures of its parts.

__

∠a = 180° -47° = 133°; reasons 2, 5. The angles form a straight angle.

∠b = 47° -32° = 15°; reason 4

∠c = 90° - ∠b = 90° -15° = 75°; reason 3

∠d = 90° -32° = 58°; reasons 1, 5. The angles form a right angle. If you want to get picky, we know it is a right angle by reasons 1 and 2. The marked right angle and the sum of 32° and ∠d together form a straight angle.

I need help with this problem, if someone could help me? Please don't guess I really need to understand this algebra.

Answers

Hi, sir or ma'am, you said you needed help but you provide no information on what to help you with, no picture or anything.

Answer:

You need to upload an image of what you are talking about

Step-by-step explanation:

Which is f(–3) for the quadratic function graphed?

–9
–3
0
9

Answers

Answer:

-9

Step-by-step explanation:

The answer is -9 since it is seeking for the point at x=-3.

James bought a cak that had 1, 890 calories for 9 servings. What is the calories per serving the cake ?

Answers

Answer:

210 calories per serving

Step-by-step explanation:

Divide 1,890 by 9you will get 210so the calories per serving of the cake is 210

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