Answer:
Step-by-step explanation:
Sample more families
sample families that have children who are not in seventh grade
sample families whose answer to the survey question is predetermined
Answer: 1.41 seconds
Step-by-step explanation:
The problem gives the initial velocity by saying "dropped." This indicates a velocity of zero. Acceleration can also be found because the object is in free fall. It would experience the acceleration of gravity. We can use the kinematic equation:

The velocity term completely cancels because the object was dropped with an initial velocity of 0.


Answer:
X = 5 + (Gr)/3
Step-by-step explanation:
Step 1: Write equation
3X - Gr + 5 = 20
Step 2: Subtract 5 on both sides
3X - Gr = 15
Step 3: Add Gr to both sides
3X = 15 + Gr
Step 4: Divide both sides by 3
X = 5 + (Gr)/3
Answer:
x = - 6 , x = 1
Step-by-step explanation:
to find the zeros let f(x) = 0 , that is
x² + 5x - 6 = 0
consider the factors of the constant term (- 6) which sum to give the coefficient of the x- term ( + 5)
the factors are + 6 and - 1 , since
6 × - 1 = - 6 and 6 - 1 = + 5 , then
(x + 6)(x - 1) = 0 ← in factored form
equate each factor to zero and solve for x
x + 6 = 0 ⇒ x = - 6
x - 1 = 0 ⇒ x = 1
If the regular price is x, the discount would be x - (30x)
Also the guitar is $31.5