If x = -2, calculate 3x^2. *
O
A. -36
B.-12.
O C. 12
OD. 36

If X = -2, Calculate 3x^2. *OA. -36B.-12.O C. 12OD. 36

Answers

Answer 1
The correct answer of your question is 12

Related Questions

The slope of the line that passes through the points (6, w) and (10, 4) is 8. What is the value of w?

Answers

Answer:

My student the slope paserea the Pointe 6w and 10,4 is8

w= -28

To find slope, you would use the equation
y-y1/x-x1

So: 4-w/10-4

We know it must equal 8 so let’s set is equal to 8 and solve :D

4-w/10-6=8

4-w/4=8

4-w=32

-w=28

w=-28

What’s 16.001 to the nearest one? help me pleaseee

Answers

Answer:

16

Step-by-step explanation:

I think you're referring to the nearest whole number, which should be 16 because that's after the decimal point

Answer: 16
The number directly after the decimal is less than 5, therefore it remains the same

question is in the picture :) please help I missed the lesson and my teacher isnt any help :/ ​

Answers

Answer:

x = 23

Step-by-step explanation:

This entire angle makes up 90° b/c of the square box

65 + x + 2 = 90

x + 67 = 90

x = 23

Answer: x=23

Step-by-step explanation:

This is a right angle. A right angle is 90°. It already gives us 65°. So 90-65=25°. We now know (x+2) ° = 25°. 25-2=23.

We can prove this is correct by answering the problem they gave us. (23+2) is 25. 25+65=90° 90° is a right triangle which also happens to be the triangle they have shown us.

pls send this answer pls pls pls
no fake answer pls pls

Answers

Answer:

6.75×10^5

Step-by-step explanation:

that's the answerrr

Answer:

6.75x10^5

Step-by-step explanation:

An online games club charges $5.75 for the first game download and $2 for each additional
download per month. Write a rule for describing the total monthly fees f as a function of
additional downloaus d. What are the fees for 15 game downloads in a month?

Answers

Answer:

a) The rule is;

f = 5.75 + 2d

b) f = $33.75

Step-by-step explanation:

Here, we want to write a rule

The rule is that we have a standard download fee of 5.75 for the first download, and then a download fee of $2 per download for the rest

We have this as;

f = 5.75 + 2(d)

f = 2d + 5.75

Now for 15 downloads;

first download is $5.75, remaking 14 is at a rate of $2 per one

Thus, we have the fee value as;

f = 5.75 + 2(14)

f = 5.75 + 28 = $33.75

De las 30 preguntas del examen de matematicas, por cada respuesta correcta se obtenian 5 puntos y por cada respuesta incorrecta, o pregunta no contestada,se perdian 2 puntos teodolindo obtuvo 94 puntos en este examen ¿cuantas respuestas correctas tuvo?

Answers

Answer:

Teodolindo obtuvo 22 respuestas correctas y 8 respuestas incorrectas o no contestadas.

Step-by-step explanation:

Un sistema de ecuaciones lineales, también conocido como sistema lineal de ecuaciones o simplemente sistema lineal, es un conjunto de ecuaciones lineales (es decir, un sistema de ecuaciones en donde cada ecuación es de primer grado), en el cual se relacionan dos o más incógnitas.

En los sistemas de ecuaciones, se debe buscar los valores de las incógnitas, con los cuales al reemplazar, deben dar la solución planteada en ambas ecuaciones.

En este caso se debe establecer un sistema de ecuaciones, donde las variables son:

x: cantidad de respuestas correctasy: cantidad de respuestas incorrectas o no contestadas

Siendo 30 preguntas en el examen, se tiene la ecuación:

x + y= 30

Por cada respuesta correcta se obtenían 5 puntos y por cada respuesta incorrecta o pregunta no contestada, se perdían 2 puntos. Teodolindo obtuvo 94 puntos en este examen. Entonces se representa esta situación mediante la expresión:

5*x - 2*y= 94

Entonces el sistema de ecuaciones a resolver es:

[tex]\left \{ {{x+y=30} \atop {5*x-2*y=94}} \right.[/tex]

El método de sustitución consiste en despejar o aislar una de las incógnitas (por ejemplo,  x ) y sustituir su expresión en la otra ecuación. De este modo, obtienes una ecuación de primer grado con la otra incógnita,  y . Una vez resuelta, calculas el valor de  x  sustituyendo el valor de  y  calculado.

Entonces, despejando el valor de x de la primer expresión obtienes:

x= 30 -y

Reemplazando en la segunda ecuación obtienes:

5*(30 -y) - 2*y= 94

Resolviendo:

5*30 - 5*y - 2*y= 94

150 - 5*y - 2*y= 94

- 5*y - 2*y= 94 -150

-7*y= -56

y= (-56)÷(-7)

y= 8

Reemplazando el valor de y obtenido en la expresión x= 30 -y se obtiene:

x= 30 - 8

x=22

Teodolindo obtuvo 22 respuestas correctas y 8 respuestas incorrectas o no contestadas.

Solve the system by substitution.

Y=3/4x-3
Y=1/4x+1

Answer must be in (y,x) or something like that
Will mark brainliest if correct.

Answers

As we know y=3/4x-3
Let's put it in the second equation
3/4x-3=1/4x+1
3/4 x -1/4 x = 1+3
2/4 x = 4
X= 4*4/2
x=8
Put x= 8 in first equation
y= 3/4 *8 -3
y=6-3
y=3
Check the answer
3=3/4 *8 -3
3=6-3
3=3
Correct
So(y, x) = (3,8)
Because x=8 and y=3

math!! <<<<<< please help

Answers

Answer:

a₆ = 972

Step-by-step explanation:

Is it correct?

a₄ = 3a₃ = 3 × 36 = 108

a₅ = 3a₄ = 3 × 108 = 324

a₆ = 3a₅ = 3 × 324 = 972

Answer:

Step-by-step explanation:

Remark

You could do this two ways: one with a formula and one without. I'll do it both ways.

With Formula

a_n = 4 * 3^(n - 1)

a_6 = 4 * 3^(5)

a_6 = 4 * 243

a_6 = 972

Without

a1 = 4

a2 = 4 * 3^(2 - 1)

a2 = 4 * 3

a2 = 12

a3 = 3* a_n-1

a3 = 3 * 12

a3 = 36

a4 = 3*a_3

a4 = 3*36

a4 = 108

a5 = 3 * a_(n - 4)

a5 = 3 * 108

a5 = 324

a6 = 3 * 324

a6 = 972 which is the same answer you got by using a formula

I need help please, If triangle JKL is congruent to QRS, find each missing value

Answers

Answer:

x = 5, y = 17, z = 8

Step-by-step explanation:

   Since the triangles are congruent to each other, corresponding angles and sides are congruent to each other.

JL corresponds with QS so...

3x - 1 = 14

3x = 15

x = 5

RS corresponds with LK so...

y + 10 = 27

y = 17

Angle L corresponds with angle S so...

180 - 58 - 87 = 4z + 3

35 = 4z + 3

32 = 4z

z = 8

please help my grade is a 68 i need a 70 at least

Answers

Answer:

10s²-6s+9

Step-by-step explanation:

C = -3 + 5s²

B = -2s + 5

2(-3 + 5s²) = -6 + 10s²

3(-2s + 5) = -6s + 15

10s² - 6s + 9

If two’s company and three’s a crowd, what are four and five?

Answers

Answer:

nao sei sorrry

Step-by-step explanation:

Answer:

a nine!

Step-by-step explanation:

HELP again…
What’s is the equation of the graphed line written in standard form

Answers

I’m sorry if I am wrong but I honestly think its the first answer...

Mr. White is renting an medium truck for one week and a few additional days d. He does not have to pay a per mile fee. Evaluate the expression 421 + 130d to find how much he will pay for a 12-day rental.

Answers

Answer:

1,981

Step-by-step explanation:

Total rental cost = 421 + 130d

d = 12

Total rental cost = 421 + 130(12)

= 421 + 1,560

= 1,981

He will pay a total of 1,981 for a 12-day rental.

Ryan and Allison want to build a ramp to help their elderly cat, Simms, walk up the bed. They
need the ramp to make a 35° angle with their bedroom floor. How long must the ramp be to
reach the top of their bed that is exactly three feet off the ground

Answers

Answer:

Step-by-step explanation:

pls help me it's due today​

Answers

Answer:

16m² + 4m - 6

Step-by-step explanation:

Hello There!

For this one all we need to do is combine like terms

7m²-(-9m²)=16m²

2m-(-2m)=4m

-3-3=-6

so the answer would be

16m² + 4m - 6

Show your work on a separate sheet of paper then choose one answer choice.
5x - 7 = 4x - 1?

Answers

Answer:

x= 6

Step-by-step explanation:

Isolate all variables on their own and numbers on the other

5x -4x +7-7  = -1 +7 +4x -4x

5x -4x = -1+7

Solve for x

x = 6

A popular band wants to sell $84,000,000 worth of tickets on its upcoming tour. If each ticket
costs $28, how many tickets will the band have to sell to meet its goal?
tickets

Answers

Answer:

3000000 is needed to meet the goal $84,000,00

Step-by-step explanation:

Divide 84,000,000 by 28

84000000/28

= 3000000

Dion predicted that he would sell 87 art prints. He actually sold 100 art prints. What are the values of a and b in the table below?

Percent Error

Item
Approximate value
Exact value
Error
Absolute error
Ratio
Percent error
Art prints
87
100
a
b


a = negative 13; b = negative 13
a = negative 13; b = 13
a = 13; b = negative 13
a = 13; b = 13

Answers

Answer:

A

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Find the surface area of this rectangular prism. Be sure to include the correct unit in your answer.
4 ft
3 ft
8 ft

Answers

I believe that The answer is 8feet

Graph the equation
y = -3. Determine the
slope of the line

Answers

Answer:

The slope is 0

Step-by-step explanation:

The line is horizontal.  All horizontal lines have a slope of 0.

The graph is attached.

A phone company charges for service according to the formula: C(n) = 27 + 0.03n, where n is the number of min talked, and C(n) is the monthly charge, in dollars.

The rate of change in this equation is:

The initial value in this equation is: ​

Answers

Answer:

0.03

27

Step-by-step explanation:

Use the formula y=mx+b

m= slope

b= y-int

Rate of change can also be interpreted as the slope.

0.03

The initial value can be interpreted as the y-intercept.

27

Ian and Rachel each made a trail mix. The amounts of ingredients they have are shown. Ian used all of the coconut, dried cranberries, and dried bananas to make his trail mix. Rachel made 2 cups of trail mix containing all of the almonds, pumpkin seeds, and granola. How much trail mix did Ian make? How much more trail mix did Rachel make than Ian? Trail Mix Ingredients 4 cup almonds 4 cup pumpkin seeds 4cup coconut 4cup dried cranberries 1 4cup walnuts 1 cup granola4cup dried bananas

Answers

Answer:

The values written as Trail mix ingredients is not well written below is the trail mix ingredients

answer :

i) Ian made : 1 3/4 cups  of trail mix

ii) Racheal made 1/4 more cup of trail mix

Step-by-step explanation:

Given that :

Trail Mix Ingredients

3 /4 cup almonds

1 /4 cup pumpkin seeds

2 /4 cup coconut

3 /4 cup dried cranberries

1 2 /4 cup walnuts

1 cup granola

2 /4 cup dried bananas

i) Ian used all of coconut , dried cranberries and dried Bananas

= 2/4 + 3/4 + 2/4

Amount of trail mix made = 7/4  = 1 3/4 cups

ii) Racheal made 2 cups of trail mix containing ; all almonds , pumpkin seeds and granola

= 3/4 + 1/4 + 1 = 2 cups of trail mix

Hence Racheal made (  2 - 1 3/4 ) more trail mix than Ian

                      = 1/4 more cup of trail mix was made by Racheal

Find the x- and y-intercepts of the graph of 4x + 4y = 20. State your answers as
whole numbers or as improper fractions in simplest form.

Answers

Answer: x-intercepts = (5,0)

y-intercepts = (0,5)

Step-by-step explanation:

Plug y=0 into the equation and solve the resulting equation 4x=20 for x

Plug x=0 into the equation and solve the resulting equation 4y=20 for y

Melissa buys a Television set whose marked prize was rupees 45000 , her then gets a discount of 15% and pants a sales tax of 12% , how much does he pay for the television set ​

Answers

Answer:

43650 rupees

Step-by-step explanation:

Discount = D

Tax : T

D = 15% of 45000

D = (45000 x 15) ÷ 100

D = 675000 ÷ 100

D = 6750 rupees

The price after the discount :

45000 - 6750 = 38250 rupees

T = 12% of 45000

T = (45000 x 12) ÷ 100

T = 540000 ÷ 100

T = 5400 rupees

Melissa will pay :

 (45000 - 6750) + 5400

= 38250 + 5400

= 43650 rupees

Which of the following angle relationships in △ABC are correct? Select all that apply. There is a triangle ABC in which the length of side AB is 3.1, the length of side BC is 3, and the length of side AC is 2.9.
A. m∠A < m∠C B. m∠B = m∠C C. m∠A < m∠B D. m∠B < m∠A < m∠C

Answers

9514 1404 393

Answer:

  A, B, D

Step-by-step explanation:

The sides in order from smallest to largest are ...

  AC, BC, AB

Then the opposite angles in order from smallest to largest are ...

  B, A, C

Let's consider the choices:

A. m∠A < m∠C --- true

B. m∠B = m∠C --- true

C. m∠A < m∠B --- false

D. m∠B < m∠A < m∠C --- true

The population of Houston was 1,900,000 in 2000. It grew to 2,100,000 in 2010.
Find the percent of increase.
a. 10.5%
b. 20%
c. 21%
d. 40%
plz help will say branliest

Answers

The answer would be A.
1.220500
2. 420,000
3.441,000
4. 840,000

a car covers a distance of 450 miles in one minute where is a train covers 69 km in 45 minutes find the ratio of their speed​

Answers

Answer:

69 plus 45 mius 450 equals 98

Help plz 20 points do all work

Answers

Answer:

1.7x+1y

2.9x+8n

3.-1r-4n+9y

4.17y-9x

5.-9n-r

Step-by-step explanation:

Combine Like Terms!

Hope this helps! :)

Answer:

1. 8x + 3y - x - 2y

= 8x - x + 3y - 2y

= 7x + y

2. 3n - 7n - 2n + x + 8x

= 3n - 9n + 9x

= - 6n + 9x

3. 2r - 5n + 9y - 3r + n

= 2r - 3r - 5n + n + 9y

= -r - 4n + 9y

4. 12y - 6x + 5y - 3n

= 12y + 5y - 6x - 3n

= 17y - 9n

5. - 13n + 4n - r

= -9n - r

6. 7xy - 8x + 6xy - y

= 7xy + 6xy - 8x - y

= 13xy - 8x - y

7. - 14r - 10n - 3r - 9n

= -14r - 3r - 10n - 9n

= - 17r - 19n

8. 6r + 9r - 2r - 13n

= 6r + 7r - 13n

= 13r - 13n

9. n + r + x - 3x +4r

= n + r + 4r + x - 3x

= n + 5r - 2x

10. 15y - 7x + 9z + 4z - 3x

= 15y - 7x - 3x + 9z + 4z

= 15y - 10x + 13z

Step-by-step explanation:

You just have to group like terms and then 'add' or 'subtract'.

Please Help Quick ASAP Hurry
Figure ABCD is a parallelogram.Which statement must be true?
a. AB is congruent to BC
b. AB is parallel to BC
c. AD is parallel to BC
d. \ is congruent to \C

Answers

Answer:

Step-by-step explanation:

Answer:

a. AB is congruent to BC   Not True

b. AB is parallel to BC        Not True

c. AD is parallel to BC        True

d. \ is congruent to \C        Not True

Step-by-step explanation:

A tree is 40 feet tall.
A basketball hoop is 10 feet tall.
What is the difference in height between the tree
and the basketball hoop?
What is the difference in height between the
basketball hoop and the tree?
What is the distance between the heights of the
tree and the basketball hoop?
What is the distance between the heights of the
tree and the basketball hoop?

Answers

Answer:

1. 30

Step-by-step explanation:

40-10=30

Answer:

b its b

Step-by-step explanation:

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