Answer:
2.5 x 60
Step-by-step explanation:
im pretty sure thats how you get your answer
Answer:
scientific phenomena
Step-by-step explanation:
Answer: ![7.6\°](https://tex.z-dn.net/?f=7.6%5C%C2%B0)
Step-by-step explanation:
You need to draw a right triangle as the one attached, where
is the angle of elevation from the fire to the top of the fire tower.
You need to use the Inverse trigonometric function Arctangent:
![\alpha= arctan(\frac{opposite}{adjacent})](https://tex.z-dn.net/?f=%5Calpha%3D%20arctan%28%5Cfrac%7Bopposite%7D%7Badjacent%7D%29)
Observe the triangle. You can identify that:
![opposite=120\\adjacent=900](https://tex.z-dn.net/?f=opposite%3D120%5C%5Cadjacent%3D900)
Then, you can substitute values:
![\alpha= arctan(\frac{120}{900})](https://tex.z-dn.net/?f=%5Calpha%3D%20arctan%28%5Cfrac%7B120%7D%7B900%7D%29)
Finally, evaluating, you get that the angle of elevation from the fire to the top of the fire tower is the following:
![\alpha =7.59\°](https://tex.z-dn.net/?f=%5Calpha%20%3D7.59%5C%C2%B0)
Rounded to the the nearest tenth of a degree:
![\alpha\approx7.6\°](https://tex.z-dn.net/?f=%5Calpha%5Capprox7.6%5C%C2%B0)
Answer:
C
Step-by-step explanation:
Let length of rectangle be "l"
Let width of rectangle be "w"
We know,
LENGTH is 2 MORE THAN WIDTH, we can write:
l = w + 2
Also, note the perimeter is the sum of all 4 sides of a rectangle, thus:
length + width + length + width
Now,
The perimeter is given as 72, so we can write:
l + l + w + w = 72
2l + 2w = 72
We have 2 equations that we need to solve and find the length (l).
The first equation is:
l = w + 2
Rearranging, we have:
w = l - 2
We put this into 2nd equation and find the value of l:
![2l + 2w = 72\\2l + 2(l-2) = 72\\2l+2l-4=72\\4l-4=72\\4l=76\\l=\frac{76}{4}\\l=19](https://tex.z-dn.net/?f=2l%20%2B%202w%20%3D%2072%5C%5C2l%20%2B%202%28l-2%29%20%3D%2072%5C%5C2l%2B2l-4%3D72%5C%5C4l-4%3D72%5C%5C4l%3D76%5C%5Cl%3D%5Cfrac%7B76%7D%7B4%7D%5C%5Cl%3D19)
The length is 19 meters, the correct answer is C
Answer:
49 eggs are left
Step-by-step explanation:
9*6-5
54-5
49