Answer:
10
Step-by-step explanation:
4 x 10 = 40
40 + 12 = 52
Answer:
the largest is 620cm the next is 4.4 dam and the smallest is 0.52 km
find the perimeter of a triangle with sides 15 inches, 15 inches, and 21 inches length
To find the perimeter of a triangle we add all the sides of the triangle
The length of the sides of the triangle are given as 15 inches, 15 inches, and 21 inches
Perimeter of a triangle =
15 inches + 15 inches + 21 inches = 51 inches
So 51 inches is the perimeter
Answer:
Step-by-step explanation:
For any circle point with coordinate of center (a,b) and radius r
equation of circle is given by
_______________________________________
Given
coordinate of center = (-5,2)
radius = 6
thus, equation of circle can be written by substituting a and b with (-5 ,2) and r =6 as shown below
Thus, equation of circle is
x(t) = 20t
y(t) = 40t - 5t^2
Since we are only interested in comparing the two at time t = 5 seconds, we plug in 5 everywhere we see the variable t and then compare x and y
x(5) = 20(5) becomes x(5) = 100
y(5) = 40(5) - 5(5)^2 becomes y(5) = 200 - 125 and then y(5) = 75
The ratio of y to x can be expressed as: y/x, so we can say the ratio is equal to 75/100 or 0.75
Answer: 0.75
