Answer:
-3
Step-by-step explanation:
-3/4 divided by 1/4
Multiply 1/4 by the reciprocal
-3/4 x 4/1
= -12/4 = -3/1
= -3
Hope this helps!
It covers approximately a 70% of the Earth's surface, formed by a combination of Hydrogen and Oxygen atoms and with an average area of 361 times ten to the power of six km2. (361x 10**6 km2)
Answer:
<em>156°</em>
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
cos(N) = sqrt(3)/2
sin(M) = sqrt(3)/2
M=60
Answer:
c. 108.4
Step-by-step explanation:
cos theta = (u dot v)/ (||u|| ||v||)
where dot stands for dot product and || || is the magnitude
u = (1,5) v= (7,-4)
u dot v = (1*7 + 5*-4) = 7-20 = -13
||u|| = sqrt( 1^2 +5^2) = sqrt(1+25) = sqrt(26)
||v|| = sqrt(7^2 + (-4)^2) = sqrt(49+16) = sqrt(65)
cos theta = -13/ sqrt(26) sqrt(65)
cos theta = -13 /sqrt(1690)
theta = arccos (-13/sqrt(1690))
theta = 108.43