Answer: There is a bunch of spelling mistakes in ur thing
Step-by-step explanation:
<span>From the pythagorean theorem, we know that x^2 and y^2 = 15^2, where x and y, where x is the base moving from the wall and y is the distance of the ladder sliding down. This means that y = sqrt(225 - x^2). Plugging in x = 13 gives us y = 2sqrt(14). Differentiating both sides of the original equations gives us dy/dt = 13 x 4 / 2sqrt(14) = 52/2sqrt(14) = 26/sqrt(14) ft/s.</span>
Answer:
110 or something really close to that number
Step-by-step explanation:
Answer:
x = 7 or x = 1
Step-by-step explanation:
For this equation: a=-1, b=8, c=-7
−1x2+8x+−7=0
Step 1: Use quadratic formula with a=-1, b=8, c=-7.
x= ( −b±√b2−4ac
)/2a
x=
(−(8)±√(8)2−4(−1)(−7))/ (2(−1)
)
x= (−8±√36
)/-2
x=1 or x=7
√4=2, and √45=√(9*5)=√9 *√5=3√5
so you have 2/(3√5)
Multiply both top and bottom by √5 to eliminate the √ in the denominator:
(2√5)/15 is the final answer.
