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What is the multiplication rule of indices?

The multiplication rule is that when multiplying terms with indices, you add the indices up. In an example, if we had to simplify 3y² x 4y³ then we would first multiply the coefficie...

Answered by Daniel K. • Maths tutor

13167 Views

Find the length of the hypotenuse of a right-angled triangle using i) Pythagoras Theorem ii) Trigonometry. The triangle has sides of lengths 3cm and 4cm and an acute angle of 30 degrees.

Part iPythagoras Theorem states a² = b² + c² , where a is the hypotenuse.Using this the lengths can be substituted into the equation as b and c, a² = 3

Answered by Zaakir S. • Maths tutor

1637 Views

expand and simplify: 5(3a+6b)+ 3(7b+a)

first we expand the equation:(53a +56b) + (37b+3a)now we multiply15a+30b +21b+3anow simplify18a+51b

Answered by Muzaina R. • Maths tutor

1459 Views

3x + x = 12. Find x

Due to the fact that the two 'x' in the question do not have a power (Are not squared or cubed) they can be added. Thus:4x = 12Then we want to find 'x' so we isolate it in the equation. To do this, we nee...

Answered by Tanika D. • Maths tutor

1480 Views