Enable contrast version

Tutor profile: Irvin O.

Busy in a lesson
Irvin O.
I'm a Teacher for almost 2-years and currently teaching at the University where I graduated from.
Tutor Satisfaction Guarantee

Questions

Subject: Trigonometry

TutorMe
Question:

Using sine law and cosine law, find the value of the missing side of the triangle given the sides B = 14 and C = 8, with angle c = 22.075.

Inactive
Irvin O.
Answer:

If we analyze the given, we can get the first missing angle using sine law. (Sine b) / B = (Sine c) / C Sine b = (B)(Sine c) / C Sine b = (14)(Sine 22.075) / 8 Sine b = 0.658 b = Sine^-1 (0.658) b = 41.124 Second step; we know that the sum of all angles of the triangle is equal to 180. Therefore; a + b + c + 180 a = 180 - b - c a = 180 - 41.125 - 22.075 a = 116.800 Last, we can now use the cosine to solve for the missing side A. A^2 = B^2 + C^2 - 2ABcos(a) A^2 = 14^2 + 8^2 -2(14)(8)cos(116.800) A^2 = 360.997 A = sq.rt of 360.997 A = 19 The answer is: 19

Subject: Geometry

TutorMe
Question:

Find the lateral area of the cone with an altitude of 15mm and base radius of 4mm? Use: LA = 3.14(r)(SL), SL refers to slant height.

Inactive
Irvin O.
Answer:

Given the equation to use, we have missing data which is the SL. But if we analyze the question, we can find it from the given altitude and base radius by just using the PYTHAGOREAN FORMULA: a^2 + b^2 = c^2... let say: a = altitude and b = base radius. Then, c will be the SL. a^2 + b^2 = c^2 15mm^2 + 4mm^2 = c^2 c^2 = 241 c = 15.52m = SL, substitute the values to the LA formula LA = 3.14(r)(SL) LA = 3.14(4mm)(15.52mm) LA = 194.93mm^2

Subject: Algebra

TutorMe
Question:

Find the value of the slope and y-intercept from the formula " 4y + 2x = 8 "

Inactive
Irvin O.
Answer:

We know that the formula is derived from slope-intercept formula, " y = mx + b ", where "m" is the slope and "b" is the y-intercept. First, we have to convert the formula to its original form: 4y + 2x = 8 4y = -2x + 8, then simplify it: y = (-2x + 8) / (4) y = -(1/2)x + 2 therefore; the value of slope(m) = -1/2 and y-intercept(b) = (0,2)

Contact tutor

Send a message explaining your
needs and Irvin will reply soon.
Contact Irvin

Request lesson

Ready now? Request a lesson.
Start Lesson

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 Lesson" 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.
BEST IN CLASS SINCE 2015
TutorMe homepage
Made in California by Zovio
© 2013 - 2021 TutorMe, LLC
High Contrast Mode
On
Off