Answer: 4/1
Step-by-step explanation:
Given that you did not include the diagram showing the circle, the tangent line and the points Q, R, and S, I am going to give you the explanation to answer the question.
1) The tangent lines to a circle form a 90° angle with the radius at the point of intersection.
2) Therefore, if the point of intersection of the tangent line and the circle is named R, and the points S and Q are one the center of the circle and the other is on the line RQ, then you know that the segment SR is a radius and the line RQ is the tangent, which means that they are perpendicular, i.e. the angle QRS is measures 90°.
In this case the answer is m angle QRS = 90°.
3) Otherwise the angle is different to 90° and you need to observe the figure to conclude whether it is greater than 90°, less than 90° or there is not enough information.
We know there were 21 vehicles so one of the equations is:
c+b=21
We can find the second equation with the other given information:
30b+4c=318
We can use manipulate the first equation then use substitution to solve the system:
c=21-b
We can plug this into the second equation:
30b+4(21-b)=318
30b+84-4b=318
26b+84=318
26b=234
b=9
Now we can plug this into one of the original equations to solve for c (the first equation is easier):
c+9=21
c=12
You can check your work by plugging the answers into the two equations:
12+9=21
21=21
(30)(9)+(4)(12)=318
270+48=318
318=318
There are 9 buses and 12 cars.
Answer:
the evaluation gives 5 as the result
Step-by-step explanation:
We just replace -6 instead of "c" in the expression and perform the appropriate operations:
X=14 this was easy ggvvhbbbn jkjk. jon.
