Explain why 4/10 : 2 and 4/10 * 1/2 both equal 2/10

A student measured the gram weight of a metal object to be 71.2g. According to the supplier the object weighs 70.9g. What is the error in the student's measurement?

How do you factorise x^2 - 9.

Q9: Angle V and ∠W share a side and the sum of their measures is 180°. What do you know about these angles? Select yes or no. They are complementary angles. They are a linear pair. They are vertical angles. They are supplementary angles.

Linda received the following scores on her essay tests. 64, 65, 63, 66, 60, 65, 66, 68, 69, 66, 63 How many modes does this set of scores have?

The ages of dogs at an animal shelter are normally distributed with a mean of 3.9 years and a standard deviation of 1.2 years. What is the age of a dog at the shelter with a z-score of - 1.7? 1.86 years 2.98 years 3.23 years 5.43 year

Which are the solutions of the quadratic equation? x2 = 9x + 6

Which is larger a cone or square pyramid?

Is 0.5 bigger than 0.40

The length of a ribbon is 3/4 meter. Sun yi needs pieces measuring 1/3 meter for an art project. What is the greatest number of pieces measuring 1/3 meter that can be cut from the ribbon?

How many more boxes of dog biscuits do you need in order for there to be more dog than cat treats in the store