The circumference of the Earth is approximately 131,000,000 ft a. Write this number in scientific notation and tell how you knew whether to use a positive or a negative exponent b. The circumference of Mars is 7.00 x 10^7 Which planet is larger, and by how many feet? Write the answer in both standard and scientific notation.​

x = 25/2304

step-by-step explanation:

go and ask your mom to you

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches