What is the value of 2x(3+x2) when x=−2?

Answers

Answer 1

Answer:

4

Step-by-step explanation:

hope this helps :)


Related Questions

help me please and thank you​

Answers

answer is A

since you’re finding out the number of minutes, that means that x is a certain number being multiplied by 9


Order|2.25|| –1,5), 2, 2, and -2 from least to greatest.
.

Answers

Answer:

-2, -1 ,2 ,2 ,2.22.25 that's the answer

PLEASE HELP!!
What two rational expressions sum to 3x-4/x^2+x-12 ? enter your answer so that each rational expression is in simplified form​

Answers

3x/(x-3)(x+4) + -4/(x+4)(x-3)

The rational expression [tex]\frac{3x - 4}{x^2 + x - 12}[/tex] can be written as the sum of two partial fractions as [tex]\frac{3x}{(x+4)(x - 3)} - \frac{4}{(x+4)(x-3)}[/tex].

What is a partial fraction?

For the decomposition of a rational equation, partial fractions are used. Each component of an algebraic expression that is divided into a sum of two or more rational expressions is referred to as a partial fraction.

Given, A rational expression [tex]\frac{3x - 4}{x^2 + x - 12}[/tex].

Now, x² + x - 12 can be written as

x² + x - 12.

= x² + 4x - 3x - 12.

= x(x + 4) - 3(x + 4).

= (x + 4)(x - 3).

Therefore, [tex]\frac{3x - 4}{x^2 + x - 12} = \frac{3x - 4}{(x + 4)(x - 3)}}[/tex].

[tex]\frac{3x - 4}{x^2 + x - 12} = \frac{3x}{(x+4)(x - 3)} - \frac{4}{(x+4)(x-3)}[/tex].

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HELP NEEDED ASAP Question: Use the Pythagorean Theorem to find the distance between the points (1, 4) and (-5, -4) on the coordinate plane. (please give answer and explanation)​

Answers

Step-by-step explanation:

the distance between the points (1, 4) and (-5, -4) on the coordinate plane =

√(-5-1)² + (-4-4)²

=√(-6)²+(-8)²

=√36+64

=√100

= 10 units

What is the LCM for 12 and 14 step by step Ladder method or factors method

Answers

12, 24, 36 , 48, 60, 72, 84

14, 28, 42, 56, 70, 84
The LCM is 84
The LCM for 12 and 14 would be 2

1. 12|14
2. 6 | 7
3. 4 | (none)
4. 3 | (none)
5. (none) | (none)
6. 2 | (none)
7. (none) | 2

WHOEVER GETS THIS RIGHT WILL HAVE 60+ POINTS (MATH) NO BAD ANSWERS ORELSE REPORTING

Answers

9514 1404 393

Answer:

  a. 2x +y = 10; 2x +3y = 22

  b. 6 minutes

Step-by-step explanation:

a) The problem statement tells you that ...

  x = minutes around the block

  y = minutes around the park

  2x +y = 10 . . . . twice around the block and once around the park: 10 min

  2x +3y = 22 . . . twice around the block and 3 times around the park: 22 min

__

b) Subtracting the first equation from the second gives ...

  (2x +3y) -(2x +y) = (22) -(10)

  2y = 12 . . . . . . . . simplify

  y = 6 . . . . . . . . . divide by 2

It takes you 6 minutes to jog around the park.

Answer:

Part A) The system of equations is

[tex]2x+y=10[/tex]

[tex]2x+3y=22[/tex]

Part B) The number of minutes it takes you to jog around the park is [tex]6[/tex] mins

Explanation:

Part A) Write a system of linear equations

Let [tex]x[/tex] ----> the number of minutes it takes you to jog around the block

Let [tex]y[/tex] ----> the number of minutes it takes you to jog around the park

we know that [tex]2x+y=10[/tex] ----> equation A

and [tex]2x+3y=22[/tex] ----> equation B

Part B) How long does it take you to jog around the park?

Multiply equation A by [tex]-1[/tex] both sides

[tex]-1(2x+y)=-10[/tex] ----> [tex]-2x-y=-10[/tex] ----> equation C

Adds equation B and equation C

[tex]2x+3y=22[/tex]

[tex]-2x-y=-10[/tex]

____________

[tex]3y-y=22-10[/tex]

[tex]2y=12[/tex]

[tex]y=6[/tex] minutes

Find the value of [tex]x[/tex]

[tex]2x+(6)=10[/tex]

[tex]2x=10-6[/tex]

[tex]x=4/2=2[/tex] minutes

Credit:

(This answer was originally made by calculista. All credit goes to them.)

What is the tangent ratio of angle xº?

Answers

Answer:

option number 2

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[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Here's the Solution :

Using Trigonometry,

[tex] \tan(x) = \dfrac{6}{8} [/tex]

Help solve this pleASE

Answers

Answer:

i have no idea 5

Step-by-step explanation:

i need help too please help

Write an equality and then solve it. Sonya is a waitress. She earns $200 a week plus 15% tip in the cost of each meal she serves. What is the least amount of the total cost of the meals she serves in order for her to earn at least $450 each week. Answer this seriously or you’ll be reported

Answers

Answer:

$1666.67

Step-by-step explanation:

$450 is the total amount she earned and $200 is the weekly wage she received. That means that $250 came from tips.

$200 + .15 (x) = 450

.15x=250

x=$1666.67

Is (1,-4) a solution to the equation y=-2/?
A yes
В. no

Answers

Answer: B.no

Step-by-step explanation:

To figure this out, plug (1, -4) into the equation y=-2x. 1 is the x value, so we plug it into the x. -4 is the y value, so we plug it into the y spot. In the end we get -4=-2(1). Is this true? No, it isn't. Therefore it is not an answer

(b) it takes 44 pounds of seed to completely plant an 8
-acre field.
How many pounds of seed are needed per acre?
pounds per acre
Check

Answers

Answer:

5 pounds and 8 ounces of seed per one acre.

Step-by-step explanation:

We have our two values, 44 pounds and 8 acres.

It also says it takes 44 pounds of seed for every 8 acres of farmland.

So to get the value of how much seed per one acre we need, we divide 44 by 8.

Doing so yields us 5.5 pounds, which can be converted to 5 pounds and 8 ounces. (remember 16 ounces is 1 pound)

1) 0.0 + 5.5 = 5.5

2) 5.5 + 5.5 = 11.0

3) 11.0 + 5.5 = 16.5

4) 16.5 + 5.5 = 22.0

5) 22.0 + 5.5 = 27.5

6) 27.5 + 5.5 = 33.0

7) 33.0 + 5.5 = 38.5

8) 38.5 + 5.5 = 44.0

In a piggy bank on his dresser, Tom has a total of $2.85 in pennies and quarters. If
the number of pennies is 5 more than three times the number of quarters, how
many pennies and quarters does he have in his piggy bank?

Answers

Set the number of Pennies as X and the number of quarters as Y.

3Y+5=X
0.01X+0.25Y=2.85

X=35 Y=10

35 Pennies and 10 Quarters

Number of pennies in piggy bank will be 35.

Number of quarters in piggy bank will be 10.

What is linear expression?

A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power.

Given that;

Total cost in piggy bank with pennies and quarters = $2.85

And, The number of pennies is 5 more than three times the number of quarters.

Let Number of quarters = x

And, Number of pennies = y

                                       = 5 + 3x

Since, Total cost in piggy bank with pennies and quarters = $2.85

So, we can formulate;

0.25x + 0.01y = $2.85

Substitute the value of y as;

0.25x + 0.01(5 + 3x) = 2.85

0.25x + 0.05 + 0.03x = 2.85

0.28x + 0.05 = 2.85

x = 10

And, y = 5 + 3x = 5 + 3 × 10 = 35

Thus,

Number of pennies in piggy bank will be 35.

Number of quarters in piggy bank will be 10.

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tell me whether (-1,2) is a solution of 8x+y>-6

Answers

Answer:

(8(-1)+2>-6

-8+2>-6

-6>-6

Step-by-step explanation:

Can someone help me please?and if you don’t know the answer don’t answer.

Answers

Answer:

a=3, b=3, c=5, d=2

Step-by-step explanation:

prime factorization of 600: [tex]2^{3}[/tex] × 3 × [tex]5^{2}[/tex]

What is the base of the expression 11^12

A.3

B.11

C.12

D.21

Answers

Answer:

21

Step-by-step explanation:

cus i got it right  on my test

which list contians three multiples of 3

Answers

Answer:

Without any answers, I can't give you information. But if the numbers in the list would be able to be divided by 3, resulting in a whole number - no fractions or decimals - then it's considered a multiple of 3.

Step-by-step explanation:

x2 = 10 A)x = ±5 B)x = ±100 C)x = ±3.5 D)x = ±10
help

Answers

Answer:

5x = 10. Dividing each side of 5x = 10 by 5 gives x = 2. ... Choices B, C, and D are incorrect and may result from errors in applying the.

Step-by-step explanation:

Answer: x=√10 or x=−√10

Step-by-step explanation:

Divide: 83.5 ÷ 6.25 The first step in solving 83.5 ÷ 6.25 is to multiply the divisor and dividend by . The new division problem is .

Answers

I believe it is 13.36

Answer:

1: B

2: C

(I need 20 characters so bla bla bla bla bla bla bla)

please answer the 5 Question please ASAP
you will get Brainlist are you guy not answering my Question :( :( :p

Answers

Answers:

3y + x >_ 10

Graph D

-2y > 8x + 4

-2y + 2x >_ 7x + y + 5

3y + x < -x - y - 8

Ok last one,
Find the x-intercept of the following equation. Simplify your answer.

4x + 13y = 6


x-intercept =

Answers

Answer:

 x-intercept = 6/4 = 3/2 = 1.50000

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    4*x+13*y-(6)=0

Step 1: Equation of a Straight Line

Solve   4x+13y-6  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  4x+13y-6  = 0 and calculate its properties

Graph of a Straight Line :

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is 6/13 so this line "cuts" the y axis at y= 0.46154

 y-intercept = 6/13  =  0.46154  

Calculate the X-Intercept :

When y = 0 the value of x is 3/2 Our line therefore "cuts" the x axis at x= 1.50000

 x-intercept = 6/4 = 3/2  =  1.50000  

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 0.462 and for x=2.000, the value of y is -0.154. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of -0.154 - 0.462 = -0.615 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

   Slope     = -0.615/2.000 = -0.308  

Geometric figure: Straight Line

 Slope = -0.615/2.000 = -0.308

 x-intercept = 6/4 = 3/2 = 1.50000

 y-intercept = 6/13 = 0.46154

4a) The vertices of a triangle are P(-7, -4) Q(-7, -8) and R(3, -3). What are the
coordinates of P' after a reflection over y=x? Please type your answer as
coordinates (x,y) with no spaces.

Answers

Answer:

P' (-4 , -7)

Step-by-step explanation:

reflection over y=x, (x,y) -> (y,x)

3 In a class of 52 students, 16 are science students. If I of the boys and I of the girls are science students, how many boys are in the class?​

Answers

Answer: So group 3 of 16 contains 2 are boys . Means 16 +16 are tow groups are of boys. Then remaining 16 are girls. It completed the all conditions. 2/3 class retio. Total 48 students and 16 girls.

Step-by-step explanation:

Hope this helps!

I need help please and thank you​

Answers

your

Step-by-step explanation:

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Which statement about the relation is true?
A.The relation is a function of x because each value of x corresponds to only one value of y
B.The relation is not a function of x because all functions are linear.
C.The relation is not a function of x because all functions have positive slope.

Answers

Thats a tough one in my opinion? How do you solve it

HELP asap pleasee
The coordinates of the vertices of the triangle shown are P(-7, 6), Q(5,-4), and R(-7, 4). Which measurement is closest to the length of PO in units? es A) 14.4 units B) 14.8 units 15.2 units D) 15.6 units​

Answers

Step-by-step explanation:

the length of PQ =

√(-7-5)²+(6+4)²

=√(-12)²+(10)²

= √144+100

=√244

= 15.6 units (D)

What is the domain and range of the following function

Answers

Answer:

DOMAIN: (INFINITY, -INFINITY)

RANGE: (-infinity, INFINITY)

Step-by-step explanation:

hm good luck cus I'm a savage

Answer:

domain: (–∞,∞)    or  all real numbers

range: (–∞,∞)       or  all real numbers

Step-by-step explanation:

domain is left to right (x-axis). looking at the graph, as you go from left to right, the x-values are infinitely getting more negative and positive.

range is bottom to top (y-axis). as you go from bottom to top, the y-values are infinitely getting more negative and positive.

I need this problem solved ASAP. Thank you!

Answers

There is no problem to solve in your picture

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Answers

Hello.

Have a beautiful and joyful day ahead.

Answer:

Step-by-step explanation:

was there a actual question ?

have a good day

Determine the Area of the triangle. Round to the nearest TENTH.

Answers

Answer:

57.1 sq in

Step-by-step explanation:

Answer:

Area = [tex]57.1cm^{2}[/tex]

Step-by-step explanation:

[tex]\frac{(10cm)(12cm)sin(72)}{2}[/tex]

= 57.1cm^2

Explain why:
2⁴ = 16.

Answers

Answer:

Well, 2 to the 4th power is just: 2 x 2 x 2 x 2 which when multiplied, you get 16.

Step-by-step explanation:

Say you multiply the first two 2's, you get 4, then you multiply the last two 2's,

You're left with 4x4 which is equal to 16.