Here, Sequence : -2, -6, -18, -54
Common Ratio = a₂/a₁ = -6/-2 = 3
As the expression is in negative sign, it's sequence will be -3ˣ
Where x = number of terms in the sequence [ By this rule, you can calculate the unknown nth number]
In short, Option C is your answer!!!!
Let me know, if you have some doubt.
Answer:
1,2,3,4,5,6 possibilities, so 1,3,5 are odd. 3/6 probability. consecutive rolls mean multiplication. 3/6 times 3/6 times.... a total of 5 times.
Step-by-step explanation:
Answer:
-10 = a
Step-by-step explanation:
17 = a - 3 - За
Combine like terms
17 = -3 -2a
Add 3 to each side
17+3 = -3-2a+3
20 = -2a
Divide by -2
20/-2 = -2a/-2
-10 = a
Answer:
Circle: sin²(theta) + cos²(theta) = 1
Ellipse: sin²(theta) + cos²(theta) = 1
Hyperbola: sinh²(theta) - cosh²(theta) = 1
Step-by-step explanation:
Circle
Cartesian form from polar form:
x = rcos(theta)
y = rsin(theta)
x² + y² = r²sin²(theta) + r²cos²(theta)
x² + y² = r²(sin²(theta) + cos²(theta))
Using sin² + cos² = 1, we get
x² + y² = r²
Ellipse
x = acos(theta)
y = bsin(theta)
cos(theta) = x/a
sin(theta) = y/b
x²/a² + y²/b² = sin²(theta) + cos²(theta)
x²/a² + y²/b² = 1
Hyperbola
x = rcosh(theta)
y = rsinh(theta)
x²/r² - y²/r² = sinh²(theta) - cosh²(theta)
x²/r² - y²/r² = 1
89+92+95=276
360-276
84
David needs at least an 84 to get an A in the Economics course.
