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Vicknesh B.
MATHS TUTOR FOR 7 YEARS
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Trigonometry
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Question:

P and Q (500 meter) are two stations for tracking a weather balloon. At a particular instant (point R), the angle of elevation of the weather balloon from P and Q are 50 degree and 12 minute and 70 degree and 36 minute respectively. Calculate the height of the weather balloon from the ground. Give your answer in the nearest meter.

Vicknesh B.

In QRS h = tan 70 degree and 36 minute x h =2.84 x h = 2.84x In PRS h = tan 50 degree and 12 minute 500 + x h = 1.2 500 + x h= 600 + 1.2x 2.84x = 600 + 1.2x 1.64x = 600 x = 365.85 h = 2.84 x 365.85 = 1039 The height of the weather balloon from the ground is 1039 meter.

Basic Math
TutorMe
Question:

Which of the following is closest to 28.7 × 8.9? A. 280 B. 310 C. 2,400 D. 2,800

Vicknesh B.

A

Algebra
TutorMe
Question:

2(a -3) + 4b - 2(a -b -3) + 5

Vicknesh B.

Multiple factors. = 2a - 6 + 4b -2a + 2b + 6 + 5 = 6b + 5

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