5) The height of a rocket after it is launched
For this case, what you should do is remember the kinematics expressions where we have:
a
v = a * t + vo
y = a * t ^ 2 + vo * t + i
Where,
a: acceleration
v: speed
y: vertical position
t: time
vo: initial speed
yo: initial position
We observe that the expression for the given position is given by a quadratic expression.
X² + 10x +2 = 0 .Complete the square of (x² + 10x + ??)
We know that (10x) is equal to twice the square root of the 1st (x) by ??
10x = 2.x.(??) and ?? = 5 and its square is 25. Then I have to add 25 and subtract 25 so that not to change the equation:
(x² + 10x + 25) -25 +2 =0
(x+5)² -23
Answer:
<h2>$36.00</h2>
Step-by-step explanation:
$12.00 - the total cost of 4 of equally priced gloves
$12.00 : 4 = $3.00 - the cost of 1 glove
The cost per glove is increased by $1.00. Therefore new cost of 1 glove is
$3.00 + $1.00 = $4.00
The total cost of 9 of gloves at the new price:
9 × $4.00 = $36.00
Answer:
0.055
Step-by-step explanation:
file is attached with explanation
Multiplying a - and a + equals a - , -8r18
