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
Ksivusya [100]
1 year ago
10

Help meeeeeeeeeeeeeee pleaseeeeeee

Mathematics
1 answer:
Rina8888 [55]1 year ago
8 0

Answer: 2.5, 5.4

Step-by-step explanation:

-16t^2 +126t=213\\\\16t^2 -126t+213=0\\\\t =\frac{-(-126) \pm \sqrt{(-126)^2 -4(16)(213)}}{2(16)}\\\\t \approx 2.5, 5.4

You might be interested in
3 more than a number then divided the result by 8
ziro4ka [17]

We are given statement : 3 more than a number then divided the result by 8.

We need to write an algebraic expression for it.

Let us assume unknown number be n.

3 more than n = (n+3).

Now, we need to divide that result (n+3) by 8.

So, we would get (n+3) divided by 8 = \frac{n+3}{8}.

<h3>Therefore, final expression is \frac{n+3}{8}.</h3>
5 0
4 years ago
Read 2 more answers
If u is a unit vector, find u · v and u · w. (assume v and w are also unit vectors.) equilateral triangle
serg [7]

solution:

we know that ,

u.v = ΙuΙ ΙvΙcosθ

here,

θ =60° (since the given triangle is equilateral triangle)

u.v = ΙuΙ ΙvΙcos60°

     = 1 x 1 x 1/2

u.v = 1/2

now, u.w = ΙuΙ ΙwΙcosθ

              = ΙuΙ x cos(60x2)

u.w = -1/2


5 0
3 years ago
Which are the roots of x^2-4x+4=20
Marysya12 [62]
X2+-4x+4=20 the final answer is 20!
3 0
3 years ago
What is a length of 6 ft and a width of 4 ft in area in meters
suter [353]
6 multiplied by 4 is 24 feet.  Then convert it to meters by multiplying .3048 by 24 which means the answer is 7.3152 meters
7 0
3 years ago
7. What are the solutions of the equation? x2 = 11x − 24
mote1985 [20]
Assuming you typed this correctly, and how you wanted it, then the answer(s) would be x=3, or x=8. Both answers are correct. If it were multiple choice, then the answer would look something like: X=3 or 8.
If you meant 2x, then the answer would be x=8/3. This is a fraction
7 0
3 years ago
Other questions:
  • 90+2x=4x <br> can you please help me solve with steps
    7·1 answer
  • A=1/2 x 19 4/5 (22 1/2 + 25)
    12·1 answer
  • Which answer choice is a solution to the equation 0.5x + 3.5 = 6?
    13·2 answers
  • 1) f(x)=-4x - 2)(x + 4)<br><br> Please help
    13·1 answer
  • Jeania's parents have given her a interest-free loan of $100 to buy a new pair of running shoes She has to
    14·1 answer
  • A storm caused a 9m hydro pole to lean over. The top of the pole is 7.5 m above the ground.
    14·1 answer
  • What is the greatest common factor of 3x^2+3x
    13·1 answer
  • HELP ASAP ! PLEASE I LOVE YOU MAY GOD BLESS YOU &lt;3 :)
    5·2 answers
  • Somebody please help
    12·1 answer
  • You have $15.00 to buy watermelon for a picnic. A watermelon costs $3.75. Which inequality represents the number 3 of watermelon
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!