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
Dmitry_Shevchenko [17]
3 years ago
12

What is the value of the discrinant of the quadratic equation -2x^2=-8x+8

Mathematics
1 answer:
Serga [27]3 years ago
7 0

Answer:

Step-by-step explanation:

-2x²=-8x+8 means : -2x²+8x-8

the discrinant of the quadratic equation is : delta = b²-4ac

when a=-2 and b=8 and c= -8

calculate delta = (8)²-4(-2)(-8) ......continu

You might be interested in
A bag of fertilizer covers 3000 square feet of lawn. Find how many bags of fertilizer should be purchased to cover a rectangular
kvasek [131]

Answer:

14 bags

Step-by-step explanation:

Dimension of lawn : 230 feet by 180 feet

area of rectangle is given by length * width

Since lawn is rectangular area of lawn = 230 feet * 180 feet = 41,400 sq. feet

Given that one bag of fertilizer covers 3000 square feet of lawn.

Thus , to find no. of bags required to cover whole lawn will be

total area of lawn/area which one bag of  fertilizer covers

no. of bags required to cover whole lawn = 41,400 sq. feet/3000 sq. feet

    = 13.8 bags.

As no. of bags cannot be fractional , hence rounding bag to nearest unit place is 14 bags.

8 0
3 years ago
Help please I will give brainleist
Natali5045456 [20]

Answer:

The answer is 80%

8 0
2 years ago
The question is: find 55% of $4.80...how do I find the answer?
tresset_1 [31]
4.80 = 100%
   x   = 55%

Cross Multiply

100 * x = 55 * 4.80
100x = 264
x = <u>264</u>
      100
x = 2.64

Solution: $2.64
6 0
2 years ago
Read 2 more answers
PLEASE HELP DUE TOMORROW!!!!!!​
vampirchik [111]

Answer:

X=35

Step-by-step explanation:

X=35 because a straight line is 180 degrees. Take away 60 degrees and you're left with 3x + 15 = 120. Simplify to 3x=105, and then divide 3x by 3. Do the same to the other side. X will now equal 35. Hope this helps :)

7 0
3 years ago
How to solve a system of equations using elimination?
Nastasia [14]
If  you have a problem like: 
4x+2y=20
2x+2y=16
 You would subtract
4x-2y=20
-2x+2y=16
You would get the new problum
2x=4
You now want to divide the 2 on both sides to solve for x
x=2

Now that you've solved for X you want to solve for y. So use substitution to solve for y. You would want to substatute the x for the 2 in either of the problums. I'll use the first one.
4(2)+2y=20

You first want to multiply te 4(2) you would get a new problum.
8+2y=20

Now you want to subtract the 8 on both sides.
2y=12

The last step to solve for y is to divide the 2 on both sides.
Y=6

So your answers would be
x=2
y=6


5 0
3 years ago
Other questions:
  • Find the length of KNJ
    11·1 answer
  • Show how to add 2 1/2+4/5 using a number line
    15·1 answer
  • The biology club has 18 members 3 girls and 15 boys.What is the ratio of girls to boys in the biology club?
    15·1 answer
  • When using Cramer's Rule to solve a system of equations, if the determinant of the coefficient matrix equals zero and at least o
    15·1 answer
  • Help! I don't know how to do this! I will mark Brainliest!
    14·2 answers
  • The revenue from manufacturing and selling x units of toaster ovens is given by:
    13·1 answer
  • Linda needs to come up with a 10 percent down payment on a house priced at $127,400.
    15·1 answer
  • How many reflectional symmetries does the regular hexagon have?
    8·1 answer
  • Can anyone say me the answer from 4 d​
    12·1 answer
  • A square field has an area of 4823m²(show your work! ) ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!