Brainliest & points asap ! ( i need someone to check the answers for me or hep me with the right one ) solve by using the quadratic formula. 8. x^2 + 7x -3= 0x= 7.40 and x=0.40 9. 5x^2 -8x -4=0 x=1.49 and x=0.11 10. 3x^2 + x -1= 0 x= -2 and x= 1.67

Ok a point t on a segment with endpoints d(1, 4) and f(7, 1) partitions the segment in a 2: 1 ratio. find t. you must show all work to receive credit.

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?