Answer:
5, -7
Step-by-step explanation:
Answer:
120.105m^2
Step-by-step explanation:
Given data
Diameter of circular bed= 24+3m = 27m
radius= 27/2= 13.5
m
Diameter of side walk = 12
radius= 24= 12
m
Hence the area of the sidewalk is
Area= area of circular bed- area of side walk
Area=πR^2-πr^2
Area=π(R^2-r^2)
Area=π(13.5^2-12^2)
Area= 3.14(182.25-144)
Area= 3.14(38.25)
Area=120.105m^2
Hence the area of the side walk is 120.105m^2
X + y = -36
x * y = 160
x = -36 - y
(-36-y) * y = 160
-36y - y^2 = 160
y^2 + 36y + 160 = 0
y = -5.19 and x = -30.8
or
y = -30.8 and x = -5.19
You can write them in this form too
x+ysqrt(z)
Answer:
7
Step-by-step explanation:
Answer:
The correct option is c.
Step-by-step explanation:
Given that,
u = 7i+4j and v = 2i-3j
We need to find the product of u and v. The dot product of two vectors is given by :
So, the dot product of u and v is equal to 2.
