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
inessss [21]
3 years ago
8

Write a second inequality with the same meaning -12<= a

Mathematics
1 answer:
alexira [117]3 years ago
7 0

Answer:

a\geq-12 or -48\leq4a

Step-by-step explanation:

You might be interested in
Find the range of the function shown on the grid. "Brainliest only if correct"
kicyunya [14]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
Simplify the expression. show work. <br> 9xy^ - 11xy^
kap26 [50]
^ means to the power of with nothing after it, it's miss-used. Solving without the ^ symbol it is -2xy with the ^ symbol it's irrational and cannot be solved.
4 0
3 years ago
A chemist has one solution that has 50% acid. She has another solution that is 25% acid. How many liters of the 50% acid solutio
Tatiana [17]

Answer:

Step-by-step explanation:

Let's begin by assigning letters to represent our two unknowns:

   x (liters of 25% solution)

   y (liters of 50% solution)

 

Our system of equations will consist of two equations:

   Equation #1 (total volume of solution)

   Equation #2 (total concentration of acid)

 

Our total volume of solution is 10 liters, which can be expressed as the sum of our unknowns:

   Equation #1:  x + y = 10

 

Our total concentration of acid can be expressed as the sum of the individual acid concentrations to make up the concentration of the final solution:

   Equation #2:  (0.25)(x) + (0.50)(y) =

                            (0.40)(10)

 

We can use Equation #1 to express one unknown in terms of the other and then plug that expression into Equation #2 to solve for one of the unknowns:

   x + y = 10

         y = 10 - x

 

Now we'll plug our expression for y in terms of x into Equation #2 and solve for x:

   0.25(x) + 0.50(10 - x) = 0.40(10)

   0.25x + 5 - 0.50x = 4

   -0.25x = 4 - 5

   -0.25x = -1

          x = (-1)/(-0.25)

          x = 4 (liters of 25% solution)

 

Now we'll plug our value for x into Equation #1 and solve for y:

   4 + y = 10

         y  = 10 - 4

         y = 6 (liters of 50% solution)

 

Finally, we will verify the correctness of our answers by plugging these values into Equation #2 to see if the sum of the component acid concentrations equals the final solution concentration:

   0.25(4) + (0.50)(6) = 0.40(10)

   1 + 3 = 4

         4 = 4 (our answers are correct)

8 0
2 years ago
Identify the vertex of y = x2 + 4x + 5.
Xelga [282]
ANSWER

The vertex is (-2,1)

EXPLANATION

We want to find the vertex of

y = {x}^{2} + 4x + 5

We complete the square to obtain,

y = {x}^{2} + 4x + {(2})^{2} - {(2})^{2} + 5

The first three terms forms a perfect square trinomial.

y = {(x + 2})^{2} - 4 + 5

The vertex form is

y = {(x + 2})^{2} + 1


This equation is in the form;

y = a{(x -h})^{2} + k


where (h,k)=(-2,1) is the vertex.
4 0
3 years ago
Read 2 more answers
If 10% of 50% of a number is 30 less than one- quarter of the number what is it?
densk [106]
Make an equation.

.1 X .5 X n = .25 X n - 30
.05n = .25n - 30
30 = .20n
150 = n
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is  8x8x8x7x7=<br>using write with exponents
    5·2 answers
  • Gwendoline has 17 tonnes of jam. She give exactly one-sixth to lucinda.
    11·1 answer
  • What is the perimeter of an equilatal triangle with side length 4.6mm?
    14·1 answer
  • The perimeter of a triangle is 240. Its sides are proportional to 3:4:5. The largest side of the triangle is
    8·1 answer
  • What are three rational numbers between -1 and -2
    13·1 answer
  • if the temperature at 9:00 pm was 12 degrees farenheit,and after 6 hours the temperature dropped to 6 degrees Fahrenheit below 0
    11·1 answer
  • Factor: y = x^7 + 65x^4 + 64x​
    5·1 answer
  • Help is a quizz !!!! The question is what mistake did the make in simplifying the expression ? (explain )
    9·1 answer
  • Graph the following features: Slope = 1/3 Y-intercept = 3
    6·2 answers
  • Which of the following equations represents the graph of a line parallel to the x-axis and passing through the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!