Answer:
Step-by-step explanation:
The last one
This is a compound interest problem, therefore s(t) should be in the form:
![s(t) = a(r)^{t}](https://tex.z-dn.net/?f=s%28t%29%20%3D%20a%28r%29%5E%7Bt%7D%20)
where:
t = time in years
s(t) = the value of your item after t years
a = the initial value of your item
r = rate
Therefore, we already know that a = 245$.
Now, we can calculate r:
![r^{t}=\frac{s}{a}](https://tex.z-dn.net/?f=%20r%5E%7Bt%7D%3D%5Cfrac%7Bs%7D%7Ba%7D)
![r = \sqrt[t]{ \frac{s}{a} }](https://tex.z-dn.net/?f=r%20%3D%20%20%5Csqrt%5Bt%5D%7B%20%5Cfrac%7Bs%7D%7Ba%7D%20%7D%20)
![r = \sqrt[5]{ \frac{560.50}{245} }](https://tex.z-dn.net/?f=r%20%3D%20%5Csqrt%5B5%5D%7B%20%5Cfrac%7B560.50%7D%7B245%7D%20%7D%20)
= 1.18
Therefore, the correct answers are
a = 245 and
r = 1.18
Answer:
C
Step-by-step explanation:
Now there are 6+4+8+1+1=20 dads in the Dads Club.
Fewer than 3 children have
- 1 child - 6 dads
- 2 children - 4 dads.
So, 6+4=10 dads have fewer than 3 children.
The probability that the dad of Dads Club has fewer than 3 children is
![Pr=\dfrac{10}{20}=0.5 \text{ or } 50\%.](https://tex.z-dn.net/?f=Pr%3D%5Cdfrac%7B10%7D%7B20%7D%3D0.5%20%5Ctext%7B%20or%20%7D%2050%5C%25.)
The probability that the next dad to join Dads Club has fewer than 3 children is reasonable to be 50%.
Answer:
Downwards ↓
Step-by-step explanation:
a°=90° (right angle)
c°=45° (diagonal)
b°=180-63 (angles on a straight line)
=117°
If you graph 4 separate triangles with the four different points, (2,3) and (1,5) form a right triangle.