Find the exact value of cos⁻¹ (cos 5π/7 ). Write your answer in radians in terms of π. If necessary, click on "Undefined."

Answers

Answer 1

Answer:

Step-by-step explanation:

the cos^-1 and the cos function cancel each other and you are left with

5pi/7 Radians

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The picture is the question

Answers

Answer:

-4 points

Step-by-step explanation:

Since each incorrect answer is worth the same amount of negative points, use the equation below.

3x = -12 DIvide both sides by 3

x = -4 points

Choose the graph of the function given below.f(x) = 2x+1

Answers

graph of the function

A 4.0-kg cart moving due east at 9.0 m/s collides with a 3.0-kg cart moving due west. The carts stick together and come to rest after the collision. What was the initial speed of the 3.0-kg cart?

Answers

Since the carts stick together and come to rest after the collision, the initial speed of the 3.0-kg cart is 12 m/s.

Given the following data:

Mass of cart 1 = 4.0 kg

Velocity of cart 1 = 9.0 m/s

Mass of cart 2 = 3.0 kg

To find the initial speed of the 3.0-kg cart, we would apply the law of conservation of momentum:

For a perfectly inelastic collision:

$M_1V_1 - M_2V_2 = V_f(M_1 + M_2)$

When the carts stick together and come to rest after the collision, the final velocity is zero (0).

$M_1V_1 - M_2V_2 = 0\n\nM_1V_1 = M_2V_2\n\nV_2 = (M_1V_1)/(M_2)$

Substituting the given parameters into the formula, we have;

$V_2 = (4(9))/(3)\n\nV_2 = (36)/(3)$

Initial speed = 12 m/s

Find the solution of the equation 1/2x^2 -x +5=0

Answers

If you would like to solve the equation 1/2 * x^2 - x + 5 = 0, you can do this using the following steps:

1/2 * x^2 - x + 5 = 0 /*2
x^2 - 2x + 10 = 0
(x - 1)^2 + 9 = 0
1. x = 1 - 3 * i
2. x = 1 + 3 * i

The correct result would be x = 1 - 3 * i and x = 1 + 3 * i.

Which of the following numbers would you multiply -3/4 by to equal 1?
@Sbcardinals

Answers

Just multiply -3/4 by -4/3 :)

You have to multiply -3/4 by a negative number to make it positive and the 3/4 cancels out into 1 when multiplied by 4/3. Hope this helped!

millie has a box of 1 hundred cubes. she also has a bag of 70 cubes. how many trains of 10 cubes can she make?

Answers

she can make 17 trains of 10

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