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
statuscvo [17]
3 years ago
6

What is the simplified expression for

Mathematics
2 answers:
agasfer [191]3 years ago
8 0
1.3 for decimal form and 4/3 for extract form
Nadusha1986 [10]3 years ago
3 0
Exact form : 4/3
decimal form : 1.3
You might be interested in
Factor 4x^4+7x^2-2=0
natulia [17]

Answer:

(2x-1)(2x+1)(x^2+2) = 0

Step-by-step explanation:

Here's a trick:  Use a temporary substitution for x^2.  Let p = x^2.  Then 4x^4+7x^2-2=0 becomes 4p^2 + 7p - 2 = 0.  

Find p using the quadratic formula:  a = 4, b = 7 and c = -2.  Then the discriminant is b^2-4ac, or (7)^2-4(4)(-2), or 49+32, or 81.  

Then the roots are:

       -7 plus or minus √81

p=   --------------------------------

                        8

p = 2/8 = 1/4 and p = -16/8 = -2.

Recalling that p = x^2, we let p = x^2 = 1/4, finding that x = plus or minus 1/2.  We cannot do quite the same thing with the factor p= -2 because the roots would be complex.

If x = 1/2 is a root, then 2x - 1 is a factor.  If x = -1/2 is a root, then 2x+1 is a factor.  

Let's multiply these two factors, (2x-1) and (2x+1), together, obtaining 4x^2 - 1.  Let's divide this 4x^2 - 1 into 4x^4+7x^2-2=0.  We get x^2+2 as quotient.

Then, 4x^4+7x^2-2=0 in factored form, is (2x-1)(2x+1)(x^2+2) = 0.

6 0
3 years ago
Write an algebraic expression for two fifths the cube of a number
pashok25 [27]
N - the number

\dfrac{2}{5}n^3
7 0
3 years ago
What decimal number is between 4.0 and 4.5?
dybincka [34]
The answer is
4.25. 
All you have to do is find the difference (0.5), half it (0.25) and add it to the smallest number.
8 0
3 years ago
Reflex angle of 95 degrees
Helen [10]

Step-by-step explanation:

a a reflex angle is more than 180° but less than 360° so in this case the reference angle of 95 degrees we are going to take 360° - 95 degrees to get255°

8 0
3 years ago
Please help!!!!!! find the area of the whole rectangle.
Olegator [25]

Answer:

Step-by-step explanation:

The area of a rec tangle is A x W

but first you have to find the area of the triangle wich is going to be 127.5.

Then you have to multiply 127.5 times 15.

And that will give you 1,912.5.

I think this is correct, but im not sure.

8 0
3 years ago
Other questions:
  • A fountain originally cost $100, but is on sale for 35% off. If a customer buying the fountain has a coupon for $12 off any purc
    7·2 answers
  • What is the equation of a line, in slope-intercept form, that passes through (−8, 1) and has a slope of 5/6 ?
    10·1 answer
  • Convert a person's weight of 164 pounds to kilograms. Show steps
    9·2 answers
  • Solve for x in the equation 2x^2 - 5x + 1 =3
    7·2 answers
  • Derek has $20 to spend on used books. Hardcover books cost $5 each and paperbacks cost $2 each. Complete the equation which dete
    7·1 answer
  • Round to nearest tenth 8 divided by 6.403
    11·2 answers
  • -21/3 - (-5) =
    10·2 answers
  • Is 27/160 inch a large amount to grow in one month?
    12·1 answer
  • Each edge of this cube is 6.7 cm long.<br> Work out <br> a) volume<br> b) surface area
    5·2 answers
  • Carter and Isabella run a carwash business. They split the revenue 50/50. They are deciding on if they should join forces with C
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!