A trapezoid has a height of 16 centimeters, and one of the bases measures 15 centimeters. What is the measurement of the other base if the area of the trapezoid is 208 cm2?

The measurement of the other base is 11 cm.

Step-by-step explanation:

Area of Trapezoid = 1/2(base1 + base2) height

Given,

Area of Trapezoid = 1/2(15 + x) 16

208 = 8(15 + x)

208 = 120 + 8x

88 = 8x

x = 88/8

x = 11 cm

∴ The measurement of the other base is 11 cm.

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;