Ving the Laws of Sines and Cosines: Mastery Test 5
Select the correct answer.
In AABC, BC = 12.35, AC = 8.75 centimeters, and mZB= 37°. What are
MZA and m2Cto two decimal places?
O A.
mzA=25.24º, m2(117.76°
OB.
mzA=58.15°,mzc84.85°
O C.
mzA=25.24º, mZc64.76°
OD
mzA58.15º, m2(31.85°

12 servings. 4 times 3= 12

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !