Lesch-Nyhan syndrome is inherited through an X-linked recessive allele. Afflicted children can be identified by self-mutilation behavior (chewing off fingers) and damaged nerves. What is the probablity of an afflicted baby (identified as a FEMALE by ultrasound) of a heterozygous woman and a normal man?

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

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the exponential expression to find the value of the cd, in dollars, after t years will be:  

step-by-step explanation:

formula of compound interest:   , where final value after years,   initial value, rate of interest in decimal and number of compounding in a year.

oliver plans to purchase a $1,500 certificate of deposit (cd) at his bank. that means,  

the cd will earn 2.3% interest, compounded semi-annually.

so,   and  

now, plugging these values into the above formula, we will

(rounded to the nearest ten-thousandth)

so, the exponential expression to find the value of the cd, in dollars, after t years will be: