Answer:
19
Step-by-step explanation:
Cause it’s angle on a straight line which is equals to 180
Y= 16(0.25)^x
The exponential equation represents an exponential decay because the rate of decay is 0.25 which is less than 1.
The general form equation is:
y(x)= a(1-r)^x such that r is the decay percent.
Answer:
$1.25
Step-by-step explanation:
0.35 x 8 = 2.80
7.20 + 2.80 = 10
10 divided by 8 = 1.25
Thank you :)
Answer:
6.5 feet
Step-by-step explanation:
Based on the Cosines Law, we have:
![cos(B) = \frac{c^{2} + a^{2} - b^{2} }{2 * a * c}](https://tex.z-dn.net/?f=cos%28B%29%20%3D%20%5Cfrac%7Bc%5E%7B2%7D%20%2B%20a%5E%7B2%7D%20-%20b%5E%7B2%7D%20%7D%7B2%20%2A%20a%20%2A%20c%7D)
If we isolate b (which is our x in this problem), we have
![b = \sqrt{a^{2} + c^{2} - 2 * a * c * cos(B)}](https://tex.z-dn.net/?f=b%20%3D%20%5Csqrt%7Ba%5E%7B2%7D%20%20%2B%20c%5E%7B2%7D%20%20-%202%20%2A%20a%20%2A%20c%20%2A%20cos%28B%29%7D)
We have
a: 2
c: 5
B: 131 (since it's the complement of the 49 degrees angle: 180 - 49).
So, we plug these numbers in the formula....
![b = \sqrt{2^{2} + 5^{2} - 2 * 2 * 5 * cos(131)} = 6.49](https://tex.z-dn.net/?f=b%20%3D%20%5Csqrt%7B2%5E%7B2%7D%20%20%2B%205%5E%7B2%7D%20%20-%202%20%2A%202%20%2A%205%20%2A%20cos%28131%29%7D%20%20%3D%206.49)
We round it up to the tenth of the unit... to get 6.5
Answer:
Option 2 and Option 5
Step-by-step explanation: