Answer:
81
Step-by-step explanation:
15-24/2
15-12
3
the answer is 3
Answer:
Step-by-step explanation:
x+y=17 is NOT the equation for any circle. You have omitted the exponents. The equation for the circle should be
x^2 + y^2 = 17.
:::::
Plug the coordinates of D into the equation.
(-4)² + (-1)² = 17, so D is on the circle.
Plug the coordinates of E into the equation.
1² + 4² = 17, so E is on the circle.
:::::
Slope of DE = (-1 - 4)/(-4 - 1) = 1
Slope of perpendicular to DE is -1.
Midpoint of DE: ((-4+1)/2, (-1+4)/2) = (-1.5, 1.5)
Point-slope equation for perpendicular bisector:
y-1.5 = -(x+1.5)
y = -x
:::::
Center of circle is (0,0)
0 = -0, so y=-x passes through the center.
Answer:
If you use the formula Hypotenuse^2 = sum of square of sides
you get 13.64 as your answer
Answer: 31
Step-by-step explanation:
This is solved Using the theory of sets.
Teachers in Albers school = 44
Teachers in Bothel school = 74
Let the number of teachers that work in both schools be denoted as "x"
This implies that:
Number of teachers in Albers only = 44 - x
Number of teachers in Bothel only = 74 - x
And total number of teachers in both schools = 87,
then
x + (44-x) + (74-x) = 87
118 -x = 87
31 = x
This means the number of teachers that teach in both schools = 31.