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a right-angled triangle has base 2x + 1, height h and hypotenuse 3x. show that h^2 = 5x^2 - 4x - 1

initially, explain Pythagorean's Theory --> a^2 + b^2 = c^2.explain c is the hypotenuse, a and b can be either base or height.using a as base and b as height, a = 2x+1. b = h. c = 3xsubstitute into for...

Answered by Mohammad A. • Maths tutor

3110 Views

Explain how the body responds to increases and decrease in blood glucose concentration:

When the concentration of glucose in the blood increases, insulin (a hormone) is secreted by the pancreas. It binds to cells, stimulating them to increase their uptake of glucose, hence decreasing the amo...

Answered by Mikhela S. • Biology tutor

4912 Views

Translate these sentences into arabic:

I love Lebanon:أحب لبنان -It is a beautiful and small country : انه بلد جميل وصغير-Tourists go there to see the beach: السواح يذهبون هناك لكي يروا البحر-I visit many historic places and enjoy the fo...

Answered by Dorine A. • Arabic tutor

2034 Views

What's the difference between a vector and a scalar?

A scalar is a single quantity giving an "amount" of something - it only has a magnitude. For example, temperature or energy are represented by a single value. On the other hand, a vector has bot...

Answered by Jasmine C. • Physics tutor

3620 Views

Show how you would calculate 53 + 39 in 8-bit binary?

First convert each number to binary. 53 = 00110101. 39 = 00100111.Then add the two binary numbers, considering each column of bits from right to left and using carry bits. 0011010100100111 +0100111...

Answered by Paolo M. • Computing tutor

2006 Views