Answer:
Attachment 1 : 5x + 6y = 5, Attachment 2 : 4cotθcscθ
Step-by-step explanation:
Remember that we have three key points in solving these types of problems,
• x = r cos(θ)
• y = r sin(θ)
• x² + y² = r²
a ) For this first problem we need not apply the third equation.
( Multiply either side by 5 cos(θ) + 6 sin(θ) )
r 
( 5 cos(θ) + 6 sin(θ) ) = 5,
( Distribute r )
5r cos(θ) + 6r sin(θ) = 5
( Substitute )
5x + 6y = 5 - the correct solution is option c
b ) We know that y² = 4x ⇒
r²sin²(θ) = 4r cos(θ),
r = 4cos(θ) / sin²(θ) = 4 cot(θ) csc(θ) = 4cotθcscθ - again the correct solution is option c
Here are the numbers of times 11 people ate out last month. 4, 6, 6, 5, 7, 4, 4, 5, 4, 5, 5 Find the modes of this data set. If
Ludmilka [50]
Answer:
4, 5
Step-by-step explanation:
put in order form least to greatest
4,4,4,4,5,5,5,5,6,6,7
whichever number occurs the most is the mode, if two numbers occur the same amount of times, they are bith the mode.
Mean is average example
mean of x,y,z is (x+y+z)/3
so 6 values
mean of 28
that means that they add up to 168
median means the middle number when you arrange them
range means the distance from smallest number to largest number
an example
18,27,29,29,29,36
To find the answer input a number for the y to find out the x, then solve and then input the same number for the x to find out the y, then solve again.
(3,3)
(6,6)
(9,9)
Answer:
your awnser should be. 4 1/3 - 2 4/5 = 1 8/15
