Answer:

Step-by-step explanation:
The given equation is :

Where
s is displacement
u is the initial velocity
a is acceleration
t is time
If u = 0, the above equation become,

Hence, the value of t is equal to
.
Answer:
-0.6666.... = - 
Step-by-step explanation:
Repeating decimals can be written as either 0.6666..., or as 0.6 with a small line over the top of the 6 to indicate it repeats. Repeating fractions are not put into fractions in the traditional way. If we had the terminating decimal 0.4, then we know to put the 4 over 10 and reduce:

However, with repeating decimals, instead of putting the number of the decimal over a value of 10, we put it over a value of 9. So, for the equivalent fraction form of -0.6 (repeating) we would get:

7y^3(3y^2-2)-(3y^2-2)
(3y^2-2)(7y^3-1)
Answer:
470?
Step-by-step explanation:
I am not fully sure of the answer
Answer:
- Equation 1 has exactly one solution.
- Equation 2 has infinitely many solutions.
- Equation 3 has no solution.
Step-by-step explanation:
We are given three equations to solve. First, let's solve the equations for x.
<u>Equation 1</u>
<u />
<u />
Therefore, we determined that for the first equation, x = -5. We can check our solution by substituting it back into the original equation.

Since we got a true statement, there are no other values of x for which we get a true statement. Let's test this with the opposite value: positive 5.

Therefore, for Equation 1, there is exactly one solution.
<u>Equation 2</u>
<u />
<u />
We get a true statement by solving for x (which ends up canceling out of the equation entirely). Therefore, we can check <u>any value</u> in place of x to see if we get a true statement. For this instance, I will use -3.

We still get a true statement, so Equation 2 has infinitely many solutions.
<u>Equation 3</u>
<u />
<u />
We get a false statement. Therefore, Equation 3 has no solution.