Answer:
Step-by-step explanation:
By the Pythagorean theorem, triangle BCD has
and triangle ABD has
.
Substituting the first equation into the second equation for 
gives the equation
Now triangle ABC has
Expanding out the left side, 
.
Now substitute the equation from before, 
, into the new equation.
We work to isolate 
by adding 
to both sides of equation and subtracting 
from both sides.
Divide both sides by 2 and you get 
Assume that x is positive and square root both sides to get the final result of
Probably it's all wrong
4.5 = 10 %If is the same then 4.5*20+45=135
If not then
FV=P(1+r)n45* (1+0.1)20 = 45*6.727=302.737
Answer:
$39.95
Step-by-step explanation:
Thus, a product that normally costs $799 with a 5 percent discount will cost you $759.05, and you saved $39.95. You can also calculate how much you save by simply moving the period in 5.00 percent two spaces to the left, and then multiply the result by $799 as follows: $799 x . 05 = $39.95 savings.
Hi There!
Answer: c. 7
Why: 84 / 7 = 12 and 49 / 7 = 7
Hope This Helps :)
