If 25 new born babies are randomly selected, what is the probability that the 25 babies

are born that their mean weigh less than 3100g?

a. What are the parameters?

b. Construct the normal distribution density curve, then shade your seeking area.

c. Find the Z-score, and construct the standard normal distribution density curve,

then shade your seeking area.

H. Find the probability.

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

the answer is d

step-by-step explanation:

y+3=-4(x-2)

y+3=-4x+8

  -3         -3  

y=-4x+5

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

55% are girls and 45% are boys : ) hope this

step-by-step explanation: