(C) c varies directly as a and inversely as b. If c= 15 when a = 18 and b = 40, find c when a = 36, and b = 25. = с

c = 48

Step-by-step explanation:

Given c varies directly as a and inversely as b then the equation relating them is

c = ← k is the constant of variation

To find k use the condition c = 15 when a = 18 and b = 40 , then

15 = ( multiply both sides by 40 )

600 = 18k ( divide both sides by 18 )

= k

= k

c = ← equation of variation

When a = 36 and b = 25 , then

c = = = 48

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.