Need help with math question
2 answers:
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Answer: 21 dogs
Step-by-step explanation:
We can set up a ratio.
Let x be the number of dogs.
We can cross multiply.
42 = 2x dogs
Therefore, there are 21 dogs
Answer:
B) A = 52.3°, b = 1.7 m, c = 2.8 m
Step-by-step explanation:
We know that it is a right angle triangle because C = 90°
because of that we can do 180 - 90 + 37.7
which is a=52.3
Because it is a right angle triangle, we can use sin, cos,tan
I will use sin to find the side of c
2.2 is a
sin 52.3 = 2.2/x
x= 2.2/ sin 52.3
x=2.78
You could do cos or tan but the pythagorean theorem for me is much faster
so it looks like this, a^2+b^2 =c^2
in this case we have both a and c we want b
so we rearrange
c^2-a^2=b^2
2.78^2-2.2^2= b^2
=b
1.7=b
therefore it would be this option B) A = 52.3°, b = 1.7 m, c = 2.8 m