Chapter 7 Topics
Find the six trig ratios given to a right triangle. Hyp-17 Adj-6 Opp-11
sin-11/17 csc-17/11
cos-6/17 sec-17/6
tan-11/6 cot-6/11
find angle a using angles sin
c-a=9
40 is the degree of b
c-b=5
x=20.9 yes, 159.1no
convert from log to exp
log. 20=2
4
4^2=20
Solve the exponential equation for x:
4x=24
x=2.2925
4x^3y^3/2x^2y^2 * 10x^3y^4/18y^2
10x^3y^3/9
What are the Opp, Hyp, and Opp of a triangle with with rations of sin-13/19 cos-8/19 tan-13/8
Hyp-19
Opp-13
Adj-8
solve this triangle using cos
it has an angle of 20 and 10 with a degree of 13
x=9.9
convert exp to log
8^3=21
log. 21=3
8
Johnny started his career with an annual salary of $20,000. Each year thereafter, his salary increased by 2.5%. Write and use an exponential growth function to find his salary when he retires in 20 years.
$32772.33
5pq/16p^3 dived by 40p^2q^2/8q^5
q^4/14p^4
find angle using trig function
it has two side lengths of 34 and 30
28.1
solve this triangle using sin
it has two degrees of 60 and 80 and a bottom length of 20.
x=22.7
condense this
4*log12-log4
log5184
Holly drank an energy drink with 250mg of caffeine. Each hour the amount of caffeine in her system decreased by about 10%. Write and use an exponential decay function to find the amount of caffeine in her system after 5 hours.
147.62mg
15a/8a^2 + 5a/8a^2
5/2a
find the angle of elevation
the angle of elevation of a fishing boat to the top of a light house is 4 degrees if the top of the lighthouse is 160 feet above sea level, how far is the boat from the lighthouse?
2288.1 ft
find this angle using cos
it has 3 side lengths of 33,46,24
no solution
expand this log
log2(a^4/b)
4*log2a - logb
The population of a town is declining at a continuous rate of 2.5%. If the current populations is 18,000 people, find the population in 6 years.
15,492 people
15a/8a^2 - 5a/8a^2
5/4a
if tan<0 and sec >0 which quadrants could the terminal side of 0 lie?
Q4
find angles using sin and cos
it has side lengths of 20,21,29
x= 29,43.6
solve equation with same base
log4(6x-a)=log4(2x)
a=4x
John invests 500$ in an account with a 8% interest rate. if he makes no other deposits or withdraws, find his account balance after 10 years if the interest is compounded monthly.
$1109.82
a/2/a^3/8
4/2a^2
use the unit circle and find tan 300 degree
- square root 3
find area of triangle
it has two side angles of 15 and 8 and degree of 108
57.1m
solve exp equation
2^x+4=2^8
x=4
convert e^x=25
ln25=x
2/x^2-12x+27 side length
bottom length x^2-9/4x^3+36x^2
x+3/x(x-9)(x+9)