Answer:I think A
Step-by-step explanation:
Hopefully I am right
Answer:
Angle OAB = 90°
Reason: tangent theorem of a circle
Step-by-step explanation:
The diagram given shows a tangent line of the given circle with center O. The tangent touches the circle at point A.
The diagram also shows the radius of the circle, OA, drawn from the center to the circle to meet at the point of tangency.
Thus, according to the Tangent Theorem of a circle, the point at which the radius drawn from the center meets the point of tangency = 90°. The tangent is perdendicular to the radius drawn to meet at the point of tangency.
Therefore, angle OAB = 90°
Answer:
P(A) = 37/100, P(A) = 37%
Step-by-step explanation:
Probability of an event = 
There are no equations to choose from but it should look like the following.
a= # of adult tickets
s= # of student tickets
QUANTITY EQUATION
a + s= 560
COST EQUATION
$8a + $3s= $2905
***If you have to also solve for the number of adults and students, here are the steps.
STEP 1:
multiply quantity equation by -8
-8(a + s)= -8(560)
-8a - 8s= -4480
STEP 2:
add cost equation and step 1 equation
$8a + $3s= $2905
-8a - 8s= -4480
a term cancels out to zero
-5s= -1575
divide both sides by -5
s= 315 students
STEP 3:
substitute s=315 in quantity equation
a + s= 560
a + 315= 560
subtract 315 from both sides
a= 245 adults
ANSWER:
Quantity Equation
a + s= 560
Cost Equation
$8a + $3s= $2905
Hope this helps! :)
