ANSWER
EXPLANATION
The given geometric sequence is
400, 200, 100...
The first term is
The common ratio is
The nth term is
We substitute the known values to get;
sinθ=4/7
What is the exact value of cosθ in simplified form?
We know that : Sin²θ + Cos²θ = 1
Given : Sinθ
Given : θ lies in Quadrant II
We know that : Cosθ is Negative in Quadrant II
Option 3 is the Answer
B. 3d – $14.00 + $7.00 = $12.10; $9.55
C. 3d + $14.00 – $7.00 = $12.10; $1.70
D. 2d + $14.00 – $7.00 = $12.10; $2.55
Answer:
The equation to model this situation is 3d + $14.00 – $7.00 = $12.10 and the cost of one large drink is $1.7 .
Option (C) is correct .
Step-by-step explanation:
As given
John and 2 friends are going out for pizza for lunch.
They split one pizza and 3 large drinks. The pizza cost $14.00. After using a $7.00 gift certificate, they spend a total of $12.10.
let us assume that the numbers of large drinks are represented by d .
Than the equation becomes
Total money spend = Number of drinks × d + Pizza cost - Gift certificate amount .
Putting all the values in the above
12.10 = 3d + 14.00 - 7.00
Simplify the aboves
12.10 = 3d + 14 - 7
12.10 = 3d + 7
12.10 - 7 = 3d
5.1 = 3d
d = $ 1.7
Therefore the equation to model this situation is 3d + $14.00 – $7.00 = $12.10 and the cost of one large drink is $1.7 .
Option (C) is correct .
b) (y-1)^2 = 20(x-3)
c) (y-1)^2 = -20(x-3)
d) (x-3)^2 = 20(y-1)
Answer with Step-by-step explanation:
We have to find:
the standard form of the equation of the parabola that has a vertex of (3, 1) and a directrix of x = –2
General form of Parabola that opens left or right:
(y−k)²=4p(x−h)
Vertex =(h,k)
Directrix: x=h−p
Here, h=3,k=1 and h-p=-2 i.e. p=h+2=5
Hence, equation of parabola in this case equals
(y-1)²=4×5(x-3)
i.e. (y-1)²=20(x-3)
Hence, correct option is:
b) (y-1)²=20(x-3)
Answer: Just follow the chart
Step-by-step explanation: