(5-1)3 +(11-2)2 +(7-4)3
(4)3+9(2)+3(3)
12+18+9
39
so the answer is 39
Y = -4x + 7
This is the equation of the line. The slope is -4. The Y- intercept is 7
Answer:
180degrees
Step-by-step explanation:
Given the expression cos^2x - cos x - 2 = 0
Let P = cos x
P^2 - P - 2 = 0
Factorize
P^2 - 2P + P - 2 =0
P(P-2)+1(P-2) = 0
P-2 = 0 and P + 1 = 0
P = 2 and P = -1
Since P = cos x
cos x = -1
x = arccos(-1)
x = 180degrees
Hence the require angle is 180degrees
For this case we can make the following rule of three:
4543 -----------> 423970 km ^ 2
x ----------------> 250 km ^ 2
Clearing x we have:
x = (250/423970) * (4543)
x = 2.678845201
Answer:
the population density of mountain lions per 250 kmsquared2 in California is:
x = 2.678845201
nearest whole numberx = 3
