sue is creating a pattern using a computer art program. she made one triangle with a length of 4.2 inches and a height of 6 inches. She duplicated the triangle and reduced it to a length of 2.8 inches and a height of 4 inches. What is the scale factor of the dilation

Clara solved the equation 7/3x = −2/3 as shown → 7/3x( 3/7 ) = −2/3 ( 3/7 ) x = −14 what is clara’s error?

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.