2 years ago

If angle c=60° , b=5 ,a=4 then find the value of the c ?

Mathematics

1 answer:

Lyrx [107]2 years ago

5 0

Answer:

c=sqrt21

Step-by-step explanation:

angle c is the angle between a and b, so use the cos law

c^2=a^2+b^2-2*a*b*cosC

c^2= 16+25-2*4*5*1/2

c^2=21

c=sqrt21

You might be interested in

Find the average rate of change for f(x)=-4x² over the interval -4≤x≤-2. Enter your answer as a number. *

Soloha48 [4]

Answer:

Step-by-step explanation:

8 0

3 years ago

Find (x - 6)2

Sever21 [200]

Its 4-6=2 its easy because just keep useing numbers until the become two

7 0

3 years ago

Read 2 more answers

D=DVDs and G=Games solve for 2D+3G=15.50 and 3D+1G=12.05

kogti [31]

We have

1G = 12.05 - 3D;

Then,

2D + 3( 12.05 - 3D) = 15.50;

2D + 36.15 - 9D = 15.50;

- 7D = - 20.65;

D = 2.95;

Finally, G = 12.05 - 3 x 2.95;

G = 3.20;

3 0

3 years ago

Please help with this question i will mark brainliest!

Blababa [14]

Answer:

hi im going to work on this i wiil comment answer in a minute

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

____times 10=662.2 ____times 100=403 ____times 1000=108

Nutka1998 [239]

Answer:

66.22 times 10=662.2

4.03 times 100=403

0.108 times 1000=108

Step-by-step explanation:

662.2 ÷ 10

403 ÷ 100

108 ÷ 1000

6 0

2 years ago

Read 2 more answers

If angle c=60° , b=5 ,a=4 then find the value of the c ?​

If angle c=60° , b=5 ,a=4 then find the value of the c ?