Answer:
-2/7 0r 2/-7 or the negative sign is in the middle
Step-by-step explanation:
(-3/4)(-4/7)= 3/7
3/7 x -2/3= -2/7
The initial dimenssions of the park lot are:
length: 140 ft
width: 90 ft
initial area: 140 * 90 = 12,600 ft^2
Area increased 29% = 12,600 * 1.29 = 16,254 ft^2
width of the strips: x
New length: 140 + x
New width: 90 + x
New area: (140+x)(90+x) = 16,254
Solution of the equation:
12600 + 230x + x^2 = 16254
=> x^2 + 230x - 3654 = 0
Use the quadratic formula.
x = {-230 +/- √[ 230^2 - 4*1*(-3654) ]} / 2 =
x = 14.92
The other solution is negative so it is discarded.
Answer: 15 ft
Given data:
The first given length is AC=53.
The second given length is AB= 45.
The expression for the Pythagoras theorem is,
Here, consider only positive sign of BC length as side cannot negative.
Thus, the BC length is 28.
Answer:
Step-by-step explanation:
<u>There is a few ways to go about doing this problem. I am going to setup a function.</u>
x = seconds
f(x) = distance = How far
f(x) = (3.0* 10^8) x
<u>Insert 10^5 where x is located</u>
(3.0* 10^8) x
<u>Multiply</u>
(3.0* 10^8) (10^5)
<u>Do the math</u>
(3.0* 10^8) (10^5) = 3 * 10^13