Area of a Triangle
Find a side
Find an angle
Logarithms
ExponentiaApplications
100

Find the area, to the nearest tenth, of triangle PQR, given r=4, p=9 and 

m angle Q = 32



9.5 square units

100

Given triangle ABC, b=27,  m angle B = 53 and m angle C = 21 .  Find c, to the nearest tenth.

12.1

100

Given triangle ABC, a=19, b=32, c=24.  Find the measure of angle A, to the nearest degree.

36 degrees

100

Evaluate log7(2401)

4

100

Kyle bought a new car at a cost of $55,000, in his favorite color yellow.  The car depreciates approximately 18% of its value each year.  Find the value of the car after 3 years.

$30,325.24

200

Find the area, to the nearest tenth, of triangle ABC, given a=21, c=17 and 

m angle B=141

112.3 square units

200

Given triangle ABC, a=36,  m angle B = 72 and m angle C = 19 .  Find b, to the nearest tenth.

34.2

200

Given triangle XYZ,  m angle Y = 128, y=42, x=37.  Find the measure of angle X, to the nearest degree.

44 degrees

200

Evaluate log4(1/1024)

-5

200

John deposits $1000 into an account that accrues 0.4% annual interest compounded quarterly.  What is the value of his investment, to the nearest dollar, after 5 years?

$1020

300

Find the measure of side x, to the nearest tenth, given the area of triangle XYZ is 45.8 square units, z=18 and

m angle Y=58

x = 6

300

Given triangle XYZ, x=19, y=14,  m angle Z = 98.  Find z, to the nearest tenth.

25.1

300

Given triangle ABC, a=3, b=4, c=5.  Find the measure of angle C.

90 degrees

300

Put in equivalent logarithmic form:

3^(x-1)=14


log3(14)=x-1

300

When Angela was born, her grandmother deposited $5,000 in a trust fund for her that pays 3.75% interest compounded continuously.  How much money, to the nearest dollar, will Angela have in her trust fund on her 21st birthday?

$10,989

400

Find the measure of side l, to the nearest whole number, given the area of triangle LMN is 6.89 square units, m=2 and

m angle N = 100

7

400

Given triangle PQR, r=5, p=8,  m angle Q = 33.  Find q, to the nearest tenth.

4.7

400

Given triangle ABC,  m angle C = 105, b=11, c=26.  Find the measure of angle B, to the nearest degree.

24 degrees

400

Put in equivalent exponential form:

log2(x)=6

26=x

400

An isotope of cesium (cesium-137) has a half-life of 30 years.  If 52.0 grams of cesium-137 disintegrates over a period of 45 years, how many grams of cesium-137 would remain?  Round to the nearest hundredth of a gram.

18.38 grams

500

Find the area of triangle RST, to the nearest tenth, given r=14, 

m angle S=65 and m angle T = 24

36.1 square units

500

Two forces of 130 N and 90 N are acting on an object so that the angle between them is 54 degrees.  Find the magnitude of the resultant force, to the nearest tenth.

196.9 N

500

Find to the nearest degree, the measure of the angle between two applied forces of 8 and 10 pounds if the resultant is a force of 5 pounds.

150 degrees

500

Solve log5(x-3)=2

28

500

The population P (in thousands) of Allen, Texas from 2016 to 2020 can be modeled by  P=84e^(0.067t) , where t is the year, with t=6 corresponding to 2016.  According to the model, when will the population of Allen be approximately 300,000?

2029