Which equation is equivalent to x + x - (-3) = 12?
A. x2 + 3 = 12
B. x2 – 3 = 12
C. 2x + 3 = 12
D. 2x – 3 = 12

Answers

Answer 1

Answer:

C.) 2x+3 = 12

Step-by-step explanation:

x+x=2x

2x-(-3) is 2x+3

Rate this brainliest


Related Questions

12. If the points A(4,3) and B(x,5)
are on the circles with centre
O(2,3), the value of 'x' is

(a) 2
(b) 4
(c) 6
(d) 8​

Answers

Answer:

a) 2

Step-by-step explanation:

Just graph it

what plus 26 makes 90 with 60?

Answers

Answer:

60+26=86. 90-86=4. So 4 is the answer.

Step-by-step explanation:

Mathmatics 8th grade

Answers

Answer:

A.[tex]\frac{3}{8} , \frac{1}{2} , 1 , \sqrt{2} , 4[/tex]

Step-by-step explanation:

[tex]\frac{3}{8} < \frac{1}{2} \\\\\frac{1}{2} < 1\\\\1 < \sqrt{2} \\\\\sqrt{2} < 4[/tex]

Answer:

A. because the square root of 2 is 1.4 and 1/2 is equal to 4/8 which is bigger than 3/8 so this is the correct order.

Step-by-step explanation:

(Brainliest plz?)

-1/2x+3=-x+7 what does x equal

Answers

Answer:

x = 8

Step-by-step explanation:

-1/2x+3=-x+7

Add x to each side

-1/2x+x+3=-x+x+7

1/2x +3 = 7

Subtract 3 from each side

1/2x +3-3 = 7-3

1/2x = 4

Multiply each side by 2

1/2x *2 = 4*2

x = 8

A scientist collected two sample sets of snowfall data. Which statistic should he use to compare the spread of the two
sets of data?
3
O median
O mode
mean
• skandard deviation

Answers

Answer:

He would use mean as a statistic to compare the spread of the two sets of data.

Step-by-step explanation:

What is mean?

Arithmetic Mean represents a number that is obtained by dividing the sum of the values of a data set by the total number of values

What is statistic?

A statistic (singular) or sample statistic is any quantity computed from values in a sample which is considered for a statistical purpose.

The mean takes into account the whole spread of the data among the various statistic and is helpful in comparing data.

To know more about mean, statistic here

https://brainly.com/question/8723036

# SPJ2

Answer:

D. standard deviation

Step-by-step explanation:

100% on edge

-14+7-9r+13r someone please helpp !

Answers

Answer:

4r-7

Step-by-step explanation:

-14+7-9r+13r

combine like terms

4r-14+7

combine like terms

4r-7

hope this helped :)

Answer:

-7 + 4r

Step-by-step explanation:

You need to combine like terms for this problem. All the basic numbers(without the r) are added together. -14 + 7 = -7. Then the numbers with the r's are added together. -9r + 13r = 4r. This comes out to -7 + 4r

HELPPP pleaseeeeeeeee

Answers

Answer:

ok ok easy lol oh my good what I'm did do have he told ya he bc do is so in by he do oh my God he told

2(x + 4) = 3(2x - 2)



HELP!!!

Answers

Answer:

7/2 = x

Step-by-step explanation:

2(x + 4) = 3(2x - 2)

Distribute

2x+8 = 6x -6

Subtract 2x from each side

2x-2x+8 = 6x-2x -6

8 = 4x -6

Add 6 to each side

Add 6 to each side

8+6 = 4x-6+6

14 = 4x

14/4 = 4x/4

7/2 = x

Answer:

x= 7/2

Step-by-step explanation:

2x + 8 = 6x - 6

2x - 6x = -6 - 8

- 4x = -14

x = 7/2

Select all the sums that are positive.
A. -5 + (-2)
B. 5+(-2)
C -3 + 4
D. 0 +(-3)
E –2 +4

please help

Answers

a = -7 negative
b = 3 positive
c = 1 positive
d = -3 negative
e = 2 positive

What is (a+b)(x)?
Let a(x)=3x^2-5x+2 and b(x)=x^2+8x-10

Answers

Answer:

Step-by-step explanation:

3x^2 - 5x + 2 + x^2 + 8x - 10

4x^2 + 3x - 8

three solutions to x ≥ 7

Answers

Answer:

x=7

x=8

x=9

(any number greater than or equal to 7)

Step-by-step explanation:

Points A, B, and C are collinear. Point B is between A and C. Find the length indicated
2) AC = x + 2, BC = 1, and AB = 2x - 4.
Find x, AB, and AC.

Answers

Answer:

            x = 5             AB = 6             AC = 7

Step-by-step explanation:

Points A, B, and C are collinear and point B is between A and C then

AB + BC = AC

2x - 4 + 1 = x + 2

2x - 3 = x + 2

   +3          +3

2x  =  x + 5

  -x     -x

  x  =  5

AB = 2x - 4 = 2×5 - 4 = 10 - 4 = 6

AC = AB +BC = 6 + 1 = 7

Hello! I'm having a really hard time solving this by Elimination and could really use some help ​

Answers

Answer:

x= 3, y=0, z= 1

Step-by-step explanation:

Let's label the 3 given equations first.

2x +3y +4z= 10 -----(1)

3x +2y -4z= 5 -----(2)

x +4y +2z= 5 -----(3)

(1) +(2):

This is to eliminate the z term.

2x +3y +4z +3x +2y -4z= 10 +5

5x +5y= 15

Divide by 5 on both sides:

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

(3) ×2:

2x +8y +4z= 10 -----(5)

(2) +(5):

This is to eliminate z term.

3x +2y -4z + 2x +8y +4z= 5 +10

5x +10y= 15

Divide by 5 throughout.

x +2y= 3 -----(6)

(6) -(4):

x +2y -(x +y)= 3 -3

x +2y -x -y= 0

y= 0

subst. y=0 into (4):

x +0= 3

x= 3

subst. x=3, y=0 into (3):

3 +4(0) +2z= 5

3 +2z= 5

2z= 5 -3

2z= 2

z= 2÷2

z= 1

Sally bought 30 pounds of apples for $10. Use the ratio table to find the cost of buying 6 pounds of apples.

Answers

Answer:

6 : 2

Step-by-step explanation:

30 : 10

( 30 divided by 5 equals 6)

( 10 divided by 5 equals 2)

ratio is:

6 : 2

pls mark brainlest ;)

Hopefully this helps you :)

Please Help due tonight really need help It's a grade

Joey gets an allowance of $17 per week. He wants to buy a new basketball that costs $43.67. When will Jose be able to buy the basketball if he has already saved $22.22, but also has to pay $13.45 each week for snacks and school supplies? make an equation or inequality and solve. Show your work

Answers

Answer:

7 weeks

Step-by-step explanation:

Joey gets 17 per week

[tex]17x[/tex] with x the number of weeks

he wants to buy a basketball cap that 43.67

[tex]equation\geq 43.67[/tex]

he has already saved 22.22

[tex]+22.22[/tex]

has to pay 13.45 each week

[tex]-13.45x[/tex]

[tex]17x+22.22-13.45x\geq 43.67\\\\(17x-13.45x)+22.22\geq 43.67\\\\3.55x+22.22\geq 43.67\\\\3.55x\geq 43.67-22.22\\\\3.55x\geq 21.45\\\\x\geq \frac{21.45}{3.55} \\\\x\geq 6.04...[/tex]

but we don't wake a 0.4 of a week so we need the next whole number 7

so it will take 7

hey can someone help me?

Answers

I think it’s (4,2), If not I am so sorry.

Se sabe que los catetos de un triangulo rectangulo miden 0,4 cm y 0,3 cm. Micaela dice que su perimetro es igual a 1,2 cm ¿Sera cierto? De no ser asi , determina el valor del perimetro correcto

Answers

Answer:

El perímetro es de 1.2 cm

Step-by-step explanation:

La formula del perímetro de un triángulo rectángulo es:

p = cateto1 + cateto2 + hipotenusa

Para determinar el valor de la hipotenusa usamos el Teorema de Pitágoras:

hipotenusa² = cateto1² + cateto2²

hipotenusa² = 0.4² + 0.3²

hipotenusa² = 0.16 + 0.09

hipotenusa² = 0.25

√hipotenusa² = √0.25

hipotenusa = 0.5

entonces, el perímetro es:

p = 0.4 + 0.3 + 0.5

p = 1.2cm

por tanto

Micaela tiene razón, el perímetro es de:

1.2 cm

4d + 7e = 68 -4 - 6e = -72

Answers

Answer:

Step-by-step explanation:

4d + 7e = 68

-4d - 6e = -72

e = -4

4d  + 7(-4) = 68

4d - 28 = 68

4d = 96

d = 24

(24, -4)

Which best describes the dimensions of a plane?
O A plane has zero dimensions because it represents a location on the coordinate plane.
A plane has one dimension because it is made up of an infinite number of points.
O Aplane has two dimensions because it is a flat surface that has length and width but no depth.
O A plane has three dimensions because it is made up of exactly three noncollinear points.

Answers

Answer:

c

Step-by-step explanation:

7gd7ts7ts6rs6rsyrs6rstrar

Answer:

A plane has two dimensions because it is a flat surface that has length and width but no depth.

Step-by-step explanation:

wikipedia it

Can anyone good with math please help..

Answers

Answer:

b

Step-by-step explanation:

lamaoamapa9meudvudjege

in which quadrant does the point s(-3, -4) lie?

Answers

Answer:

It's in quadrant 3

what is the area of a pizza with a 9 inch radius?

Answers

Answer:

254.47

Step-by-step explanation:

A=πr2=π·92≈254.469

Discuss the continuity of the function (tan^-1 x)/x at x= 0

Answers

Step-by-step explanation:

This graph has a vertical asymptote at x=0, this means that it is not continues at x=0. However as the Limit, x approches 0, it is very close to 57.296.

If 5 km on a map equals 13 miles, then
how many km will 156 miles equal?

PLEASE HELP ME

Answers

Answer:

60 kilometers

Step-by-step explanation:

a.
7
L 1. Andrew's hobby is mountaineering. He
started his hike at 250 feet above sea level.
When he reached the peak of the mountain
he was at 1700 feet above sea level. How
many feet did Jake hike up the mountain?

Answers

Answer:1700

Step-by-step explanation:

In total, he traveled 1700 feet. He had to get to the 250ft starting point somehow, so you would count that as the overall total distance traveled.

Constanza le hizo una caja de regalo a su papá. La medida de una de las aristas de la caja es de 15 cm. Si la caja tiene forma de un cubo. ¿Cuántos cm2 de papel de regalo deberá ocupar como mínimo para forrar la caja?

Answers

Answer:

Constanza ocupará, como mínimo, para forrar la caja:

1350 cm²

para forrar la caja

Step-by-step explanation:

En un cubo cada una de las aristas que lo conforman miden lo mismo.

Un cubo tiene 6 caras.

La formula del área del área de las 6 caras del cubo es:

área total del cubo = a = 6*arista²

en este caso:

a = 6*(15cm)²

a = 6 * 225 cm²

a = 1350 cm²

Answer:1350 cm²

Step-by-step explanation:idfk

1. CD Express offers 4 CDs for $60. Nuse Place
offers 6 CDs for $25. Which store offers the
better buy?

Answers

Answer:

Answer 2.

Step-by-step explanation:

4 CDs for $60 vs 6 CDs for $25?

At CD Express you'll spend $240 while only spending $150 at Nuse Place.


Tamara wants to calculate the height of a tree outside her home. Using her clinometer, she measures the slope angle from 30 feet
away from the base of the tree and gets an angle of 62.
If Tamara's eye level is 5.5 feet above the ground, how tall is the tree? (Round your answer to the nearest hundredth)
Answer

Answers

Answer:

61.922 feet

Step-by-step explanation:

For this problem, we simply want to set up a trigonometric function that computes the height of the tree, and we want to add the height of Tamara.

We are given a distance from the tree of 30 feet with an angle from her eye-level to the top at 62 degrees.  So we can say the following:

y = tan(Θ) * x

Where Θ = 62 degrees, x = 30 feet, and y is the height of the tree from Tamara's eye level.

y = tan(Θ) * x

y = tan(62) * 30

y = 56.422

So we also need to include the height of Tamara to get the total height of the tree from the ground to the top.

56.422 ft + 5.5 ft = 61.922 ft

Hence, the total height of the tree is 61.922 feet.

Cheers.

The height of the tree is 61.92 feet.

Given information:

Tamara wants to calculate the height of a tree outside her home.

She is 30 ft away from the tree.

Tamara's eye level is 5.5 feet above the ground.

The angle of inclination of the top of the tree is 62 degrees.

Let h be the height of the tree.

See the attached image.

Use trigonometric ratios in triangle ABC to calculate the height of the tree as,

[tex]tan62=\dfrac{AB}{BC}\\1.8807=\dfrac{h-5.5}{30}\\h-5.5=56.4217\\h=61.9217\\h\approx61.92\rm\;ft[/tex]

Therefore, the height of the tree is 61.92 feet.

For more details, refer to the link:

https://brainly.com/question/14163589

Please help solve im stuck!

Answers

Answer:

Step-by-step explanation:

The statement that is not true (an exception is easily created) is C

Draw a 1 by 4 rectangle.

Underneath it draw a 2 by 2 rectangle.

They both have the same area (4 units) but they are not congruent. The corresponding lengths are not equal and that is another condition that must be met for there to be congruence. There are many others.

Draw a 2 by 2 square.

draw a triangle with a base of 1 and a height of 8. These two figures have the same area, but they don't even have the same number of sides.

C is simply not true.

At the local aquarium,one fish tank contained 1,080 clown fish and 60 parrot fish,for a total of 1,140 fish all together. What is the most reduced ratio of total fish to parrot fish

Answers

1,140:60 can you mark brainliest
Other Questions
Hows does the structure of the novel Labor unions formed as a way to help workers *A.Find better jobsB. Learn more skilled tradesC.Improve their working conditionsD. Increase the hours children could work How many states must approve of a proposed amendment before it becomes part of the Constitution? expand using pascal triangle (3x+2)^4 1. Kevin has noticed that if he drinks a large caffeinated soda right before a test, he hasmore energy and is able to focus better on the test. The last time he drank a soda beforetaking a test, he got a good grade, even though he hadn't studied the night before. Kevinwants to see if this is true for other people, also.Independent variable:Dependent variable:Hypothesis: what essential characteristics does a good experiment have?A. control group is given the experimental treatment. B. a single variable is tested C. a control is usedD. both B and C Which statement is false?Orthologs are homologs found in the same species.The function of a protein is a result of its amino acid sequence.Protein structure is commonly described at four levels.It is possible to change the amino acid sequence of a protein and have no effect on its functio Carrie is creating a personal balance sheet. The heading includes the period of time that the balance sheet represents. Which could be the header of Carrie's balance sheet? Help me please I am confused Why did civilizations first appear along river valleys? Solve the formula C = d for d What is the greatest common factor of 80 and 16? Cricket match Australia v England begins 10:00 UK time. Australian time is 11 hours ahead of UK time. What time will the game start in Australia (24 hr clock) Identities in maths 4sin30cos45 What is the answer? Active participation in civic life has its philosophical basis in 'the common good', which asserts which of the following selections?Select one:A. The cooperative efforts of citizens is the best way to ensure the betterment of allB. Very little of our lives is affected by the environment and community around usC. All men are created equal. D. Individual achievement is the best goal in life if you were in this situation who would you be ? ScenarioILL GIVE YOU BRAINLIST !!! SHOW WORK!!!!!! help I tried finding answers nothing showed so now Im here asking yall :) Which best states the author's purpose for naming and describing Esther Lobetkin in the text? to challenge ideas about a historical person to bring a person from history to life O to connect the past to the present O to show what it was like to work in a factory In which case would you revise a hypothesis Clare13478 9 10 113Tyler rode his bike 43 1/8 miles in 5 3/4 hours. How many miles did Tyler ride his bike per hour?Show Your Workoood7 1/2 miles per hour8 4/5 miles per hour7 1/6 miles per hour8 3/5 miles per hour