Answer: B: 140.4
Step-by-step explanation:
Answer:
G: 4,13 (4 lbs costs 13 dollars)
H: 1,3 (1lb costs 3 dollars)
Step-by-step explanation:
first, the horizontal line (the one going left to right) is the x axis.
the vertical line (up and down) is the y axis
look at the x axis first the point G is on the 4th mark
and then look at the y axis, the point G is on the 3rd mark
therefore, the coordinate is: 4,3
*tip: always put the x axis before the y!! a way to remember that is in the alphabet, x comes before y
(I know I already answered this in the comments but I wanted to explain it further, so here you are! )
Answer:
a
Step-by-step explanation:
4, 2, and 6 are all exterior angles. The triangle angles are adjacent (next to) to exterior angles. The angles that are not inside the triangle or vertical angles are exterior angles.
The formula for the circumference of a circle is π x diameter
Since we already know the circumference, we divide that by π to get the diameter:
circumference = π x diameter
so
circumference / π = diameter
Now lets do this:
31.4 / π = 9.9949... (this is the diameter)
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The formula for the area of a circle is π r²
To get the radius, we just halve the diameter:
9.9949.. / 2 = 4.99746...
Now that we know the radius we can use the formula:
π x r²
= π x 4.99746²
= 78.46ft²
So the area is:
78.46ft²