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Solve algebraically: 2x - 5y = 11, 3x + 2y = 7

Here we have two simultaneous equations with two unknowns. In order to solve this, we must first elimate one of the variables. To do this we will first make the coefficient (the number before) of one of the ...
GD
Answered by Georgia D. • Maths tutor
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Which equation of motion should I use?

There's a handy trick for choosing which of the equations of motion, or SUVAT equations, you need to use given a set of terms – let’s call it the VUAST trick. For these kinds of questions, there are always 3...
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Answered by Ben T. • Maths tutor
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Which places do these point to? Write the answer in English

Example- Biblioteca (library) 1.)a) Catedral -----> b) Ayuntamiento -----> c) Polideportivo -----> d) Centro comercial ---> d) Autopista - ------>
AK
Answered by Ateeq K. • Maths tutor
3988 Views

Explain the sliding filament model of muscular contraction

The presence of calcium ions causes tropnonin to detach from tropomyosin-this exposes the mysoin head binding sites. Myosin head groups attach to the surrounding actin filaments forming a cross bridge. The h...
KD
Answered by Karishma D. • Biology tutor
7805 Views

Describe how the cardiac cycle is coordinated with reference to the sinoatrial node (SAN), the atrioventricular node (AVN), and Purkinje tissue.

The SAN is the pacemaker, situated at the top of the right atrium. The SAN initiates a wave of excitation at regular intervals. The wave of excitation quickly travels over the walls of both atria. As it pass...
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Answered by Karishma D. • Biology tutor
14343 Views