Answer:
180° -x
Step-by-step explanation:
The reference angle is the smallest positive angle between the terminal ray and the x-axis. For a 2nd-Quadrant angle such as 150°, the reference angle is ...
180° -x
_____
If your answer choice is really 180' -x, then the correct answer is "none of the above." 180' is 3°, since there are 60 minutes in a degree.
Answer : The number of larvae is greatest at 5 degrees Celsius.
Given the equation
x is the temperature of water in degrees Celsius, and y is the number of insect larvae in the water
Peak of the graph is the vertex
Now we find out the vertex from the given equation
To find x coordinate of vertex we use formula x=
a= -2, b= 20
So x=
x =
x = 5
Now we find out y
Plug in 5 in the place of x
y= 450
Vertex is (5,450)
It means the number of larvae reaches the maximum of 450 at 5 degree Celsius
Hence , the number of larvae is greatest at 5 degrees Celsius.
Answer:
24 + 12 = 36
Step-by-step explanation:
find the volume of the upper left part by finding the dimensions
it already gives 2 side lengths: 2 and 2. To find the 3rd side length you can take 5 - 2 to get 3. 3*2*2 = 12
find the volume of the bottom portion by finding the dimensions. we are given 2 sides again: 2 and 2. to get the upper long side, we can do 4 + 2 to get 6. 6*2*2 = 24
24+12= 36cm^3
Okay, Do you know how to find the surface area?
Area of a circle = 3.14 x r^2
=3.14 x 8.5^2
= 226.865