Answer:
the traingle that have 0 reflectional is the scalene traingle then its number one all defferent sides
give me brainliest if it true
<u>Given</u>:
The height of the bird at time t is given by the function ![h(t)=-4.9t^2+6t+50](https://tex.z-dn.net/?f=h%28t%29%3D-4.9t%5E2%2B6t%2B50)
We need to determine the time it takes the worm to be eaten by the bird.
<u>Time taken:</u>
The time can be determined by substituting h(t) = 0 in the function.
Thus, we have;
![0=-4.9t^2+6t+50](https://tex.z-dn.net/?f=0%3D-4.9t%5E2%2B6t%2B50)
Switch sides, we get;
![-4.9t^2+6t+50=0](https://tex.z-dn.net/?f=-4.9t%5E2%2B6t%2B50%3D0)
Let us solve the equation using the quadratic formula.
Thus, we get;
![t=\frac{-6 \pm \sqrt{6^{2}-4(-4.9) 50}}{2(-4.9)}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B-6%20%5Cpm%20%5Csqrt%7B6%5E%7B2%7D-4%28-4.9%29%2050%7D%7D%7B2%28-4.9%29%7D)
Simplifying, we get;
![t=\frac{-6 \pm \sqrt{36+980}}{-9.8}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B-6%20%5Cpm%20%5Csqrt%7B36%2B980%7D%7D%7B-9.8%7D)
![t=\frac{-6 \pm \sqrt{1016}}{-9.8}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B-6%20%5Cpm%20%5Csqrt%7B1016%7D%7D%7B-9.8%7D)
![t=\frac{-6 \pm 31.87}{-9.8}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B-6%20%5Cpm%2031.87%7D%7B-9.8%7D)
The values of t are given by
and ![t=\frac{-6 - 31.87}{-9.8}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B-6%20-%2031.87%7D%7B-9.8%7D)
and ![t=\frac{-37.87}{-9.8}](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B-37.87%7D%7B-9.8%7D)
and ![t=3.9](https://tex.z-dn.net/?f=t%3D3.9)
Since, the value of t cannot be negative, then ![t=3.9](https://tex.z-dn.net/?f=t%3D3.9)
Thus, the time taken by the bird to eat the worm is
seconds.
Hence, Option B is the correct answer.
Answer:
As sunlight passes through the atmosphere, it heats up the surface of Venus. Most of this heat cannot escape back into space because it is blocked by the very thick atmosphere of Venus. The heat becomes trapped and builds up to extremely high temperatures
Step-by-step explanation:
im not sure if that is what you are looking for but there
Answer:
B. 30
Step-by-step explanation:
3x + 2x + x = 180 (angle sum of a triangle is 180)
6x = 180
x = 30
Answer:The answer is 183, hope I helped.