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
sasho [114]
3 years ago
13

Twice a number plus 6 times the number is -72.

Mathematics
1 answer:
katen-ka-za [31]3 years ago
7 0

Answer:

The number is -9

Look at the attachment

You might be interested in
A rectangle is constructed with its base on theâ x-axis and two of its vertices on the parabola yequals=2525minusâxsquared2. wha
Nina [5.8K]
You should have drawn1 - x-axis and y-axis in light pencil.2 - graphed a down-facing parabola with the top of the frown on the y-axis at y = 2.  It should be crossing the x-axis at ±√2.  This should be in dark pencil or another color.3 - In dark pencil or a completely new color, draw a rectangle with one of the horizontal sides sitting on top of the x-axis and the other horizontal side touching the parabola at each of the top corners of the rectangle. The rectangle will have half of its base in the positive x-axis and the other half on the negative x-axis.  It should be split right down the middle by the y-axis.  So each half of the base we will say is "x" units long.  So the whole base is 2x units long (the x units to the right of the y-axis, and the x units to the left of the y-axis)  I so wish I could draw you this picture...   In the vertical direction, both vertical edges are the same length and we will call that y.   The area that we want to maximize has a width 2x long, and a height of y tall. So A = 2xy     This is the equation we want to maximize (take derivative and set it = 0), we call it the "primary equation", but we need it in one variable. This is where the "secondary equation" comes in.  We need to find a way to change the area formula to all x's or all y's. Since it is constrained to having its height limited by the parabola, we could use the fact that y=2 - x2 to make the area formula in only x's.   Substitute in place of the "y", "2 - x2" into the area formula. A = 2xy = 2x(2 - x2)   then simplify A = 4x - 2x3     NOW you are ready to take the deriv and set it = 0 dA/dx = 4 - 6x2       0 = 4 - 6x2   6x2 = 4    x2 = 4/6 or 2/3 So x = ±√(2/3) Width remember was 2x.   So the width is 2[√(2/3)]Height is y which is 2 - x2 = 2 - 2/3  =4/3
6 0
3 years ago
Ms hadley has an orange tree when she lived in california .less than 39 of the oranges were lost during the first month i need h
n200080 [17]

Answer:

Step-by-step explanation:boom boom boom boom i want you in my room lets spend the night together

7 0
2 years ago
Evaluate 3|-4|<br><br>12 <br><br>4<br><br>-12​
jeka94

Answer:

12

Step-by-step explanation:

Absolute value means take the positive value

3|-4|

3*4

12

5 0
3 years ago
Read 2 more answers
What is the relationship between 7 and —7?
Alex73 [517]

Answer: absolute value

Step-by-step explanation:

Sorry for my writing it’s horrible ik I’m in a hurry rn lol

4 0
3 years ago
Solve equation for x. State any restrictions. ax+2=bx+c
Marina CMI [18]

it says i need to have at least 20 characters so here you go buddy

7 0
3 years ago
Other questions:
  • What is the measure of ABD awnsers 39,49,141,51
    11·2 answers
  • Mr. Jensen is a salesperson for an insurance company. His monthly paycheck includes a base salary of $2,175 and a commission of
    5·1 answer
  • Kiemanh is solving the equation 15 r minus 6 r = 36. What is the value of r?
    5·2 answers
  • Evalute x divided by 80 for x = 8/9 , Thankss!!!!
    6·1 answer
  • Help with some of my homework, please and thank you
    10·2 answers
  • PLZZZZ GIVING BRAINILEST
    6·1 answer
  • ASAP! find the inverse of the function y=2x^2+2
    9·1 answer
  • What is the value of x?
    14·2 answers
  • The parking space shown at the right has an area of 330 ft². A custom truck has rectangular dimensions of 13.3 ft by 4.9 ft. Can
    10·2 answers
  • Please help i will give you 100 points
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!