Step-by-step explanation:
here,,
a=3,b=10,C=120°
c^2=a^2+b^2-2ab cos120°
=(3)^2 +(10)^2 _2 (3)(10)(-1/2) [cos120°=-1/2]
=9+100-(-30)
=109+30
=139
c=(139 )1/2=11.79
c=12
Answer:
25+40
Step-by-step explanation:
for the area of a triangle you multiple the base times the height. for the area of the square it is the length times width.
NOTE: to completely answer just add 25+40
Answer:
c.300
Step-by-step explanation:
25%-----75 studens
100%-----x students
x=100×75/25= 300
Answer:
1
Step-by-step explanation:
Solve. Remember to follow PEMDAS.
PEMDAS is the order of operation, and =
Parenthesis
Exponent (& Roots)
Multiplication
Division
Addition
Subtraction
First, divide 54 with -6:
54/(-6) = -9
Next, combine the terms.
10 + (-9) = 10 - 9 = 1
1 is your answer.
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1:4 is you answer. 4-3 is 1 and you do the same to 7
