TutorMe homepage
Subjects
PRICING
COURSES
SIGN IN
Start Free Trial
Harish N.
Tutor
Tutor Satisfaction Guarantee
Trigonometry
TutorMe
Question:

SinA=1/2, find the value of CosA?

Harish N.
Answer:

By using the identity (SinA)^2+(CosA)^2=1 1/4+(CosA)^2=1 (CosA)^2=3/4 CosA=+ sqrt(3/4) or - sqrt(3/4)

Geometry
TutorMe
Question:

What is the perimeter of a rectangle when the length= 30 cm and the width=20 cm?

Harish N.
Answer:

The perimeter is when you add all four sides together. Two of the sides are the length (30). So 30+30= 60 cm, but we aren't done yet. Two of the sides are the width (20). So 20+20=40 cm. Now we have to add the two answers we got together so 60+40= 100 cm. The perimeter is 100 cm. (You also could ass 30+30+20+20= 100 cm).

Biology
TutorMe
Question:

What are the two types of cells that make up every living organism on Earth? Name at least three differences between the two.

Harish N.
Answer:

The two types of cells that make up every living organism on Earth are eukaryotic and prokaryotic cells. Three differences: -Eukaryotic cells have a nucleus, while prokaryotic do not. -Eukaryotic cells have a mitochondria, while prokaryotic do not. -Prokaryotic cells do not make up multi-cellular organisms (such as animals and plants), only bacteria.

Send a message explaining your
needs and Harish will reply soon.
Contact Harish
Ready now? Request a lesson.
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.