The number of dogs in the animal shelter which comprise of cats, dogs, and rabbits is 84 dogs.
<h3>Equation</h3>
Total animals = 5 × 47
= 235
- Number of rabbits = 1/2(d + 20) - 5
- Number of cats = d + 20
- Number of dogs = d
235 = d + (d + 20) + 1/2(d + 20) - 5
235 = d + d + 20 + 1/2d + 10 - 5
235 = 2 1/2d + 25
235 - 25 = 2 1/2d
210 = 2 1/2d
d = 210 ÷ 2 1/2
d = 210 ÷ 5/2
= 210 × 2/5
= 420/5
d = 84 dogs
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Answer:
28
Step-by-step explanation:
1) subtract 12 from both sides
2) divide by negative 1
Answer:
Yes
Step-by-step explanation:
If you have an equalateral triangle with the angle in the bottem left corner, then flip it sideways,right and do the same with the other but, left, it can make a straight angle
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There are 2 ways to do this:
1) Transform tan into terms of sin.
where
Substituting back in gives:
2) Use a right triangle.
sin = opp/hyp --> opp = 2, hyp = 5
Use Pythagorean theorem to solve for adjacent side.
tan = opp/adj
The crane is 139.8cm tall.
<h3>what is angle of elevation?</h3>
The angle formed by the line of sight and the horizontal plane for an object above the horizontal.
Using Trigonometry
tan 30 = h/y
1/√3 = h/y
y= h√3
and, tan 25= h/y+62
0.96= h/(h√3 +62)
h= 0..96 (h√3 +62)
h= 0.96*h*1.732+0.96*62
h=0.796h +28.52
0.2404h= 28.52
h= 139.8 cm
Hence, whooping crane is 139.8 cm.
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