Amath placement test has a mean of 42 and standard deviation of 5. the english replacement test has a mean of 64 and standard deviation of 9. ricky scores 46 on the math test and 70 on the english test on which test did ricky score higher and why

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

The square root of 9x plus 7 plus the square rot of 2x equall to 7

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k