Answer:
38°
Step-by-step explanation:
The measure of required angle can be obtained by using cosine law.
From the given triangle we find that:
a = 5, b = 3, c = 7,
Since,
cos (A) = (b^2 +c^2 - a^2) /2bc
Therefore,
cos (A) = (3^2 + 7^2 - 5^2) /(2*3*7)
cos (A) = (9 + 49 - 25) /(42)
cos (A) = (33) /(42)
cos (A) = 0.785714286
A = arccos(0.785714286)
A = 38.213210675°
A = 38°
Answer:
Box of oat:
24*5*25(all in cm)=3000 cm3
cereal:
26*4*2.8=291.2 cm3
oat is grater by 2708.8
Step-by-step explanation:
28mm was changed to 2.8 cm
Answer:
yea you correct
Step-by-step explanation:
nice work
Answer:
14
Step-by-step explanation:
7x2=14
X+2x+3x=120, x=20, the parts are 20, 40, 60
