Richard simplified an expression in three steps, as shown: x to the power of negative 4 multiplied by y to the power of 2, over y multiplied by x to the power of 2 multiplied by x to the power of 2 multiplied by y to the power of negative 4, the whole to the power of 3 equals x to the power of negative 12 multiplied by y to the power of 6, over y to the power of 3 multiplied by x to the power of 6 multiplied by x to the power of 6 multiplied by y to the power of negative 12 equals x to the power of negative 12 multiplied by y to the power of 6, over y to the power of negative 36 multiplied by x to the power of 36.

Which is the first incorrect step and why?

Step 1, all the exponents are multiplied by 3
Step 2, the exponents in the denominator are multiplied
Step 3, the exponents of the same base are subtracted during division
Step 3, the exponents of the same base are added during division

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:

Which statement about the annual percentage rate (apr) is not true?