Answer:
m.p=rs1800
discount=10%
discount amount=discount%of mp=10/100×1800=rs180
profit=8%
sp=mp-discount=1800-180=1620
cp=sp-profit%ofcp
cp+profit%ofcp=sp
cp+8/100×cp=1620
cp(1+8/100)=1620
cp=1620/1.08=1500
Multiply the like terms
(3x * -x) times (6 *2)
-3x. Times 12
To find the area of the circle use the A = πr²
r (or radius) = 1.5
Plug in 1.5 for r
A = π(1.5)²
Square 1.5
A = π(2.25)
A = 2.25π yd² is your answer
hope this helps
Answer:
sin(-255°) = √2 + √6/4
Step-by-step explanation:
We need to find sin -255°
We know that sin(-a) = - sin(a)
so, sin(-255°) = - sin 255°
We know that 180° + 75° = 255°
Now we can write sin(255°) = sin(180° + 75°)
We can use the identity:
sin(x+y) = sin(x) cos(y)+cos(x)sin(y)
x = 180° , y = 75°
Solving,
sin(x+y) = sin(x) cos(y)+cos(x)sin(y)
sin(180° + 75°) = sin(180°) cos(75°)+cos(180°)sin( 75°)
sin(180°) = 0
cos(75°) = √6 -√2/4
cos(180°) = -1
sin( 75°) = √2 + √6/4
Putting values,
sin(180° + 75°) = 0 (√6 -√2/4) + (-1)(√2 + √6/4)
sin(180° + 75°) = -(√2 + √6/4)
We know that sin(-255°) = -sin(255°)
Putting value of sin(255°)
sin(-255°) = -(-(√2 + √6/4))
sin(-255°) = √2 + √6/4
Step-by-step explanation:
The parabola has a line of symmetry at x=0 so that means we can reflect the function across the y axis and it will remain unchanged so the answer is even function.
