TutorMe homepage
Subjects
PRICING
COURSES
Start Free Trial
Serisha G.
Tutor Satisfaction Guarantee
Geometry
TutorMe
Question:

The semicircle of area 1250 pi centimeters is inscribed inside a rectangle. The diameter of the semicircle coincides with the length of the rectangle. Find the area of the rectangle.

Serisha G.

Let r be the radius of the semicircle. Area of the semicircle is known; hence 1250Pi = (1/2) Pi r2 (note the 1/2 because of the semicircle) Solve for r: r = 50 Length of rectangle = 2r = 100 (semicircle inscribed) Width of rectangle = r = 50 (semicircle inscribed) Area = 100 * 50 = 5000cm^2

Basic Math
TutorMe
Question:

Solve: 3(x+5) + 2 = -1

Serisha G.

A. 3x + 15 + 2 = -1 B. 3x = -1 -2 -15 C. 3x = -18 D. x = -6

Algebra
TutorMe
Question:

A car travels from A to B at an average speed of 50 km/hour. At what average speed would it have to travel from B to A to average 60 km/hour for the whole trip?

Serisha G.

Let d be the distance between A and B T1 = d / 50 : travel time from A to B Let S be the speed from B to A T2 = d/S : travel time from B to A 60 = 2d/(T1 + T2) : average speed for the whole trip 60 = 2d/(d/50 + d/S) : substitute T1 and T2 S = 75 km/hour : solve the above equation for S.

Send a message explaining your
needs and Serisha will reply soon.
Contact Serisha
Start Session
FAQs
What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Session" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.