A student is converting a quadratic from vertex form to standard form, but there is a mistake. Identify the step that contains the mistake and the correction. STEP 1 y=2(x-5)^2 -1 correct
STEP 2 y=2(x^2+25)-1 this could be incorrect
STEP 3 y=2x^2-50-1 this could also be incorrect
STEP 4 y=2x^2-51 correct
CORRECTIONS BELOW...
a. step 2 y=2(x^2-10)-1
b. step 2 y=2(x^2-10x+25)-1
c. step 3 y=2x^2-25-1
d. step 4 y=2x^2-49
PLEASE HELP ME

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0

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