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
12345 [234]
3 years ago
12

Solve the equation by completing the square. 3x^2-12x=96

Mathematics
1 answer:
olasank [31]3 years ago
8 0

Answer:

x = 8

or

x = -4

Step-by-step explanation:

3x² - 12x = 96

Divide both sides by 3

x² - 4x = 32

Add 4 to both sides

x² - 4x + 4 = 32 + 4

(x - 2)² = 6²

Find the square root of both sides

√(x - 2)² = √6²

x - 2 = +/- 6

x - 2 = +6 or -6

x - 2=+6

x=6+2

x=8

x - 2=-6

x=-6+2

x=-4

x = 8

or

x = -4

You might be interested in
In how many ways can a committee of four men and four woman be formed from a group of seven men and eleven women?
-Dominant- [34]
Choosing 4 men from seven can be done in 7C4 = 35 ways
(There are 7 to choose from then 6 and 5 and 4 = 7 x 6 x 5 x 4
but we don’t want them in order so we need to divide by 4! = 4 x 3 x 2 x 1)
Similarly choosing 4 women from 11 can be done in 11C4 = 330 ways.

Total number of ways to choose 4 men and 4 women = 35 x 330 = 11550
3 0
1 year ago
The volume of a sphere is 972(pi)ft3.
pav-90 [236]

Here are some simple equations that can be a life saver with this stuff :

vol of a sphere =

v = \frac{3}{4} \pi \: {r}^{3}

Circumference =

2 \times \pi \times r

sorry this might not be very helpful. I haven't don't this since last year. You basically have to work backwards. so plug in 972 for V and then do (3/4)×3.14.

then take the answer u got for ^^ and divide it by 2? not sure.

7 0
3 years ago
What's rate of $ 7.96 for 5 pounds
BartSMP [9]
To find the rate, we have to divide both numbers by 5. So the rate will be $1.592 for 1 pound.
7 0
3 years ago
HURRY WILL GIVE BRAINLIEST!!! A doctor’s orders are to give his patient 250 milligrams of an antibiotic medication. If there are
12345 [234]

Answer: I think 75

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Find all intercepts of y=x^2-2x-3
morpeh [17]
There is a math graping app called desmos it can help you graph the equation and give you the intercepts
3 0
3 years ago
Other questions:
  • What is the exact circumference of a circle with a radius of 17 mm?
    7·1 answer
  • If 4 numbers of puppets are sharing 1 cake equally write a fraction to show what part of the cake 1 of those puppets will be eat
    11·2 answers
  • How many centimeters are there in 3.5 inches?<br> 1 inch = 2.54 cm
    12·2 answers
  • Ana owns an airline and pays the airport $35.00 for each ticket sold. the amount Ana pays is given by f(x)=35x where x is the nu
    13·1 answer
  • Together, Tim and Allen worked 22 hours on a project. Allen worked one more than twice the amount of hours Tim worked. How many
    11·1 answer
  • 8n+7=31 what does n equal
    8·2 answers
  • I WILL GIVE BRAINLIEST ONLY IF YOU ANSWER WELL
    11·2 answers
  • Ayuda la tengo que entregar hoy
    11·1 answer
  • If 3x+2=5/9, what is the value of −3x+8?
    10·1 answer
  • 1.99x+6=2.50x can someone help me
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!