Answer:
x = 2 or x = -5
Step-by-step explanation:
It s given that, (x – 2)(x + 5) = 0
<u>To find the solution of given equation</u>
Let (x – 2)(x + 5) = 0
From this we get
either (x – 2) = 0 or (x + 5) = 0
If (x - 2) = 0 then x = 2
If (x + 5) = 0 then x = -5
Therefore the solutions of given equation (x – 2)(x + 5) = 0 are,
x = 2 or x = -5
Answer:
"The product of a rational number and an irrational number is SOMETIMES irrational." If you multiply any irrational number by the rational number zero, the result will be zero, which is rational. Any other situation, however, of a rational times an irrational will be irrational
A better statement would be:
"The product of a non-zero rational number and an irrational number is irrational
Answer:
C) 8
Step-by-step explanation:
The Distributive property says a(b+c)=ab+ac, using this knowledge, follow the steps provided below to solve the problem :)
1) Distribute -5 to a and 3:
-5a-15=-55
2) Add 15 to both sides:
-5a=-40
3) Divide both sides by -5:
a=8
Answer:
10.17
Step-by-step explanation:
Given the following Quadratic equation:
The steps to solve it are:
1. Substitute into the equation:
2. Use the Quadratic formula .
In this case:
Substituting values into the Quadratic equation, you get (Round the values to the nearest hundreth):
3. The positive value is the time that the rocket will hit the ground.
Therefore, the rocket will hit the ground after .