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
pav-90 [236]
3 years ago
10

How do i solve 4x^2-9?

Mathematics
2 answers:
BabaBlast [244]3 years ago
5 0
Use the PEMDAS method!
Irina18 [472]3 years ago
3 0

Answer:

x = 3/2 or x = -3/2

Step-by-step explanation:

Solve for x over the real numbers:

4 x^2 - 9 = 0

The left hand side factors into a product with two terms:

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

Split into two equations:

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

Add 3 to both sides:

2 x = 3 or 2 x + 3 = 0

Divide both sides by 2:

x = 3/2 or 2 x + 3 = 0

Subtract 3 from both sides:

x = 3/2 or 2 x = -3

Divide both sides by 2:

Answer:  x = 3/2 or x = -3/2

You might be interested in
Which expression is equivalent to 2n + 3n - 0.32n? A.5.32n
il63 [147K]

Answer:

B. 4.68n

Step-by-step explanation:

Given

2n + 3n - 0.32n

= 5n - 0.32n

= 4.68n

Hope it will help :)❤

3 0
3 years ago
You are buying a $14.95 item that has 4.5% sales tax. You give the cashier a $20 bill. How much change do you get back?
adell [148]

Answer:

$4.38

Step-by-step explanation:

First, we need to find out how much the item costs with the sales tax. 4.5% is also equal to 0.045. We can multiply 14.95 by 0.045 to get the sales tax. This would end up to be 0.67275 which we can round to 0.67. We can now add 0.67 to 14.95 to get $15.62. Since we gave the cashier a $20 bill we need to subtract 20 by 15.62 to get $4.38.

7 0
3 years ago
Read 2 more answers
Select the situation that describes the following expression.<br>co<br>alယ​
Mazyrski [523]

Answer:

what are the things at the end.

Step-by-step explanation:

8 0
3 years ago
How do we define​ argument?
Tamiku [17]

Answer:

an exchange of diverging or opposite views, typically a heated or angry one.

7 0
3 years ago
Read 2 more answers
Find the value of the y-intercept of the line whose equation is 17x-12y=-36
Nastasia [14]
-12y = -17x - 36

divide through by -12:-#y = -17/-12 x + 3
slope =  17/12
5 0
3 years ago
Other questions:
  • A fruit punch recipe calls for 18 cups of soda and 6 cups of grape juice.
    15·1 answer
  • Ive been stuck on this question for 4 hours someone please help me
    7·1 answer
  • I need help <br> I need help<br> Anyone please
    12·1 answer
  • I need help with this.
    15·2 answers
  • Simplify this expression. 2√5(13+√2)
    13·2 answers
  • A flat surface that extends without end in all directions and is named by three points that are not on the same line is known as
    11·1 answer
  • A muffin recipe calls for 4 cups of sugar and yields 36 muffins. If China only wants to make 24 muffins, how much sugar will she
    13·2 answers
  • Please solve this 15 points
    15·1 answer
  • What is the circumference of a circle with a radius of 3 inches? Use 3.14 for pie
    10·2 answers
  • HELP DUE IN 10 mins The construction worker works for $5.50 per hour, but he does not get paid for his lunch time. He spent 3.8
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!