1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SVEN [57.7K]
3 years ago
8

Solve the following: 2(x+3)=x-4

Mathematics
1 answer:
Anon25 [30]3 years ago
7 0

Answer:

x = -10

Step-by-step explanation:

2(x + 3) = x + -4

Reorder the terms:

2(3 + x) = x + -4

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

(6 + 2x) = x + -4

Reorder the terms:

6 + 2x = -4 + x

Solving

6 + 2x = -4 + x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.

6 + 2x + -1x = -4 + x + -1x

Combine like terms: 2x + -1x = 1x

6 + 1x = -4 + x + -1x

Combine like terms: x + -1x = 0

6 + 1x = -4 + 0

6 + 1x = -4

Add '-6' to each side of the equation.

6 + -6 + 1x = -4 + -6

Combine like terms: 6 + -6 = 0

0 + 1x = -4 + -6

1x = -4 + -6

Combine like terms: -4 + -6 = -10

1x = -10

Divide each side by '1'.

x = -10

You might be interested in
What is the surface area of the solid figure represented by the net?
Ivenika [448]

Answer:

Option B. 373.80 square centimeters

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The surface area of the figure is equal to the area of its 5 faces (3 rectangular faces plus 2 triangular faces)

step 1

Find the area of its 3 rectangular faces

A_1=(5.6)(9.4)=52.64\ cm^2

A_2=(12.7)(9.4)=119.38\ cm^2

A_3=(13.9)(9.4)=130.66\ cm^2

step 2

Find the area of its 2 triangular faces

A_4=\frac{1}{2}(12.7)(5.6)=35.56\ cm^2

A_5=\frac{1}{2}(12.7)(5.6)=35.56\ cm^2

step 3

Find out the surface area

SA=A_1+A_2+A_3+A_4+A_5

substitute the values

SA=52.64+119.38+130.66+35.56+35.56

SA=373.80\ cm^2

6 0
3 years ago
Read 2 more answers
Does anyone know how to solve this question? I have been stuck on it for a while and I can't figure it out. Could someone explai
nignag [31]

The general formula for sine wave is given as:

y = A sin (w x) + B

where,

y = height of the ladybug

A = is the amplitude of the wave or the highest peak

w = the angular frequency = 2 π f

x = seconds after landing

B = y intercept of the function

 

A. The A in the function refers to how high and how low the wheels turn. So it has a maximum value of 7 in the top and also 7 in the bottom. The negative sign simply means that the wheel starts going down first rather than going up (classic sine is the reverse). Therefore the diameter of the wheel is:

diameter = maximum top + maximum bottom

diameter = 7 + 7 = 14 cm

 

B. From the equation,

w = 2 π f = 0.4 π

Calculating for frequency f,

f = 0.2 rev / s

 

The period p it takes to make one revolution is the reciprocal of f:

p = 1 / 0.2

p = 5 seconds

 

C. From B, it takes 5 seconds to complete 1 revolution and in 1 revolution there is 360°. Therefore:

degrees in 1 seconds = 360° / 5 seconds = 72° / 1 second

 

Hence, the ladybug turns 72° in 1 second.

 

D. The value of B gives the initial height of the ladybug. Therefore the minimum and maximum heights is:

h = B ± diameter

h = 11 ± 7

h = 4, 18

 

Hence the min height is 4 cm and max height is 18 cm above the ground.

 

E. Simply plug in x = 3

y = -7 sin(0.4π*3) + 11

y = -0.46 + 11

y = 10.54 cm above the ground

4 0
4 years ago
I think the answe is c can somebody help me out ?
Alekssandra [29.7K]
Answer:
angle V = 60 degrees
angle U = 90 degrees
angle W = 30 degrees
This is the last option

Explanation:
Part a: getting angle U:
Let's start by doing the Pythagorean check:
hypotenuse = sqrt [(side1)^2 + (side2)^2]
side1 = 3√3 and side2 = 3 cm
Substitute in the above equation:
hypotenuse = sqrt [ (3√3)^2 + (3)^2]
hypotenuse = 6 cm
This proves that the given triangle is right-angled at U
Therefore:
measure angle U = 90 degree

Part b: getting angle V:
cos theta = adjacent / hypotenuse
theta is angle V
adjacent side = 3 cm
hypotenuse = 6 cm
Therefore:
cos V = 3/6 = 1/2
V = 60 degrees

Part c: getting angle W:
We can get this using two methods:
Method 1:
Angles of triangle = 180
180 = 90 + 60 + angle W
angle W = 180 - (90+60) = 30 degrees
Method 2:
cos theta = adjacent / hypotenuse
theta is W
adjacent = 3√3 cm
hypotenuse = 6 cm
Therefore:
cos W = 3√3 / 6 = √3 / 2
W = 30 degrees

Hope this helps :)
5 0
4 years ago
!!!30 points and brainliest!!!
Inga [223]

5[x²+(2)²—(2)²]+32

5[(x+2)²—4]+32

5(x+2)²—20+32

5(x+2)²+12

Ans

8 0
2 years ago
Your neighbor pays you $17 for every 2 hours you work.You work for 8 hours on Saturday.How much does your neighbor owe you
White raven [17]
$68
divide 8 by 2 to get 4
multiply 17 times 4 to get 68
4 0
3 years ago
Read 2 more answers
Other questions:
  • A multiple-choice test contains 10 questions. there are four possible answers for each question. (a) in how many ways can a stud
    7·1 answer
  • The repeating decimal,0.27 repeting, is converted to the fraction 3/x. What is the value of x in the fraction?
    9·1 answer
  • Solve the following system of equations by graphing and select the correct answer below:
    5·2 answers
  • A circle has its center at (-2, 5) and a radius of 4 units. What is the equation of the circle? Answer choices:
    14·2 answers
  • Four lines are shown in the graph below.<br> Which line has the slope with greatest value?
    13·2 answers
  • Can someone help me?
    11·1 answer
  • Can someone help with trig identities?<br> (calculators are allowed)
    14·1 answer
  • Here are two sums:<br> 2/15 + 1/3 6/7 - 1/3 <br> which two sums is the closest value to 1/2?
    15·1 answer
  • Is the product of two irrational numbers always gonna be irrational
    11·1 answer
  • 9. What conversion factor can you use to convert miles to inches? Explain how you found it.​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!