Which of the following expressions would you use to find the area of a trapezium?
12×(sum of parallel sides)×(height)
12×(sum of non parallel sides)×(height)
Product of base and height
Question 153(ii)
In a repeater machine with 0 as an exponent, the base machine is applied 0 times. What do you think the value of 6o is ? You have seen that a hook up of repeater machines with the same base can be replaced by a single repeater machine. Similarly, when you multiply exponential expressions with the same base, you can replace them with a single expression. Asif Raza thought about how he could rewrite the expression 220×25. Asif Raza's idea is one of the product laws of exponents, which can be expressed like this Multiplying Expressions with the same base ab×ac=ab+c Actually, this law can be used with more than two expressions. As long as the bases are the same, to find the product you can add the exponents and use the same base. e.g. 32×33×310=32+3+10=315
Which of the following would you use to measure the weight of a rock ?
Which of the following would you use to measure the weight of a stone?