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
marishachu [46]
2 years ago
7

I need steps on how to do this!

Mathematics
1 answer:
pantera1 [17]2 years ago
5 0

Answer:

  3.856 seconds

Step-by-step explanation:

Set d=10 and solve for t.

  10 = -12t^2 -3t +200

  12t^2 +3t -190 = 0 . . . . . . subtract the expression on the right to put into standard form

This is a quadratic equation, so the quadratic formula can be used to find solutions. That formula tells you the solution to ...

  ax^2 +bx +c = 0

is

  x = (-b ±√(b² -4ac))/(2a)

__

We have a=12, b=3, and c=-190. The variable in our equation is t, not x. Putting these values into the formula, we find ...

  t = (-3 ±√(3² -4(12)(-190)))/(2·12)

  t = (-3 ±√9129)/24

  t = (-3 ±95.546)/24 = -4.106, +3.856

The coconut will be about 10 ft off the ground after 3.856 seconds.

You might be interested in
Free p0ints first come first serve
Ira Lisetskai [31]

Answer:

Tyty :)

Step-by-step explanation:

5 0
3 years ago
5=4b-12 hurry and make sure you put how you got the answer
PIT_PIT [208]

Answer:

4.25

Process:

  • 5=4b-12
  • 4b=12+5
  • 4b=17
  • b=\frac{17}{4}
  • b= 4.25
5 0
2 years ago
Read 2 more answers
Is this true or false need answer asap
VLD [36.1K]
Answer: True

Step-by-Step Explanation:

=> 2x + 3y = -7 (Eq. 1)
=> -x = 2y (Eq. 2)
=> x = 1, y = -3

Substitute values of ‘x’ and ‘y’ in Eq. 1 :-

=> 2x + 3y = -7
= 2(1) + 3(-3) = -7
= 2 + -9 = -7
=> -7 = -7
=> LHS = RHS

Therefore, it is a Solution.
3 0
2 years ago
HELPP PLEASE
umka21 [38]

Answer:

27.5 mm

Step-by-step explanation:

The game piece has the shape of two identical square pyramids attached at their bases. Given that the perimeters of the square bases are 80 millimeters, and the slant height of each pyramid is 17 millimeters.

Let the side length of each of the side of the base of the pyramid be b, hence:

perimeter = 4b

80 = 4b

b = 20 mm. half of the side length = b/2 = 20 / 2 = 10 mm

The slant height (l) = 17 mm, Let h be the height of one of the pyramid, hence, using Pythagoras theorem:

(b/2)² + h² = l²

17² = 10² + h²

h² = 17² - 10² = 189

h = √189

h = 13.75 mm

The length of the game piece = 2 * h = 2 * 13.75 = 27.5 mm.

6 0
3 years ago
Which expression is equivalent to (–3y – x) – (5y – 8x)? –8y – 8x –8y 7x 2y – 7x 8y 8x.
IRINA_888 [86]

The expression is equivalent to -8y + 7x.

Given

Expression; (-3y - x) - (5y - 8x)

<h3>How to find the equivalent expression?</h3>

To find the equivalent expression multiply the expression and add and simplify.

Then,

The expression is equivalent to;

 (-3y - x) - (5y - 8x)

-3y - x - 5y + 8x

-8y + 7x

Hence, the expression is equivalent to -8y + 7x.

To know more about expression click the link given below.

brainly.com/question/13040575

6 0
2 years ago
Other questions:
  • What is the least common multiple (LMC) of 8 and 12?
    6·1 answer
  • How can you graph m(x)=5x and then compare it to f(x)=x?
    15·1 answer
  • Find the length of AB
    11·1 answer
  • * WILL GIVE BRIANLIEST 5 QS PLZZ HELP MEH ;D*(07.01)What is the solution to the equation 5x = 40?
    8·1 answer
  • Greg and Lu are building a toy hydraulic crane, as shown in the picture.
    12·2 answers
  • The Children's Museum has a large fish tank with the dimensions shown. The tank does NOT have a cover. What is the surface area
    6·1 answer
  • Point T is on line segment
    14·1 answer
  • Need help ASAP please
    7·1 answer
  • How many blocks is it from the school bus stop to the theater bus stop?​
    10·1 answer
  • You need to graph the linear function plz help hurry
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!