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
Sever21 [200]
3 years ago
10

For which of the following are x=4 and x=-4 solutions?

Mathematics
1 answer:
ELEN [110]3 years ago
5 0

Answer:

2x2 - 5x - 12 = 0.

(2x + 3)(x - 4) = 0.

2x + 3 = 0 or x - 4 = 0.

x = -3/2, or x = 4. I hope this helps

Step-by-step explanation:

You might be interested in
A gas at standard temperature and pressure was measured as having a mass of 1485 grams (g) in a volume of 750 liters (L). Which
tangare [24]

Answer:

Here we will use the relation:

Density = mass/volume.

We know that:

Mass = 1485g

Volume = 750L

Density = 1485g/750L = 1.98 g/L

We do not have the options in order to select the correct one, but knowing this density, we can suppose the possible gases.

Two "common" gases with densities similar to this one are:

Carbon Dioxide, with d = 1.977 g/L

Dinitrogen Monoxide, with d = 1.977 g/L

In both cases, if we round up we will get the same density that we calculated at the beginning, so either of these can be the correct option.

6 0
3 years ago
You should solve the answer for z not m pls
mariarad [96]

Step-by-step explanation:

we can factor out z

so that'll be

z((1/m)-(1/n))=1

divide by the value in parentheses on both sides

z=1/((1/m)-(1/n))

I can't tell if there's more the problem wants you to do. I could rewrite the equation on paper more easily, but I don't have one on hand

5 0
2 years ago
Read 2 more answers
Find the constant of proportionality k. Then write an equation for the relationship between x and y.
egoroff_w [7]

Answer:

k= 5

Equation is: y=5x

3 0
2 years ago
Terrance made a list of his expenses. He is creating a check-off matrix to organize when his bills are due. A check-off matrix i
valkas [14]

Complete the chart  by marking each of the expenses in the correct cell depending on whether the expense occurs montlhy, quarterly, annually, etc. as shown in the chart.

<h3>What is a check-off matrix?</h3>

This is a type of chart that is completed by adding X to the cells. In the case of expenses, check-off matrixes help you to visualize how often every expense occurs, and therefore it can be useful to control or monitor expenses.

This type of matrix often includes:

-Columns with the months of the year or the initals of these. June = J.

-Rows that show the expenses a person has.

<h3>How to do a check-off matrix?</h3>
  1. List the expenses
  2. Make an X in each of the cells that the each expense should occur.
  3. Verify the information once the chart is finished.

Below you can find the complete chart:

Learn more about expenses in brainly.com/question/24803457

#SPJ1

6 0
2 years ago
Which is the most effective brand name shoe. is it Experimental vs. Observational
balandron [24]

Answer:

nike its observational

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Find the perimeter of a rectangle that had a length of 2x+ 7 and a width of 5x
    8·1 answer
  • Which is bigger 0.6 or 0.58?
    5·1 answer
  • Rodell wants to find the favorite gaming app among the students at his school. He decides to poll the thirty students
    5·1 answer
  • What is the solution to 6y-(2y-5)=29
    7·1 answer
  • Find the slope of the line passing through the points <br> B) (5,-2) and (-3,4)
    8·1 answer
  • CORRECT ANSWERS ONLY PLES ASAP!!!!! It costs $2 to spin the spinner shown below. If you land on an even number, you win $8. If y
    8·2 answers
  • What % of 30 is 16.5
    11·2 answers
  • How would you describe the graph of the function in interval 2? Select all that apply.
    12·1 answer
  • a storm blew down many trees. several neighbors rented a chain saw for $232.85 and helped each other cut up and stack wood. the
    13·2 answers
  • HELP!!!!!!<br><br> Find the length of segment SV.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!