C because I rounded up to 5 which would be 75 and it was a little less so C
Answer:
168
Step-by-step explanation:
a^2 x b^2 = c^2
7^2 x 24^2 = c^2
49 x 576 = c^2
28224 = c^2
√28224 = √c^2
168 = c
Distance of earth from the sun = 1.5 x 10⁸ km
speed of light = 3 x 10⁸ m/s
time in minutes = ?
by using the formula,
Distance = velocity x time, we get
time = distance/velocity
time = t = (1.5 x 10⁸) / (3 x 10⁸) = 0.5 seconds
convert 0.5 seconds to minutes = 0.00833333
it takes 0.00833333 minutes to travel from the sun to the earth
Just like simplifying any other fraction.
Divide the top number and bottom number
by their greatest common factor.
The greatest common factor of 40 and 2 is 2 .
The derivative of :
y = ( 2 x - 7 )³ - we will use the chain rule :
y = u³
y` = 3 u² · u`
y` = 3 ( 2 x - 7 )² · ( 2 x - 7 ) `
y ` = 3 ( 2 x - 7 )² · 2
y ` = 6 ( 2 x - 7 )²