1. the number of calories burned at the gym is normally distributed with a mean of 425 and a
standard deviation of 51. find the z-scores for each data value.
a) 268
b) 512
c) 450

-2 is the right

.19875994384

step-by-step explanation:

1699/ 8548

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!