Answer:
Step-by-step explanation:
Given that,
Radius of a cone, r = 13 cm
Slant height of the cone, l = 20 cm
We need to find the surface area of the cone. The formula for the surface area of the cone is given by :
Put all the values,
So, the surface area of the cone is .
Answer:
y = (-2/3)x - 10
Step-by-step explanation:
The equation of a line that has a slope of -2/3 and a y-intercept of -10 is
y = (-2/3)x - 10. Compare this to y = mx + b; the formats are the same.
Answer:
Step-by-step explanation:
it is related as all integers are rational numbers
1 hour is equivalent to 60 minutes
3/4 hours is - 60 minutes x 3/4 = 45 minutes
3 hours are equivalent to 60 minutes/hr x 3 hr = 180 minutes
it takes Cindy 45 minutes to complete a puzzle
so it takes her 45 minutes for - 1 puzzle
then in 180 minutes she can make - 1/45 x 180 = 4 puzzles
in 3 hours she can complete 4 puzzles
Answer:
The area of the composite area is 400 square millimeters.
Step-by-step explanation:
The area of the composite figure (), in square millimeters, is found by multiplying the area of the equivalent rectangle, in which a semicircle of the original rectangle is move to the opposite side of the figure, so that quantity of area is conserved:
(1)
Where:
- Width, in millimeters.
- Height, in millimeters.
If we know that , the area of the composite figure is:
The area of the composite area is 400 square millimeters.