2ab x cos (C) = 7 because
a^2 + b^2 - 2ab x cos(C) = c^2
2ab x cos(C) = a^2 + b^2 - c^2
2ab x cos(C) = 2^2 + 2^2 - 1^2
2ab x cos (C) = 7
First get the difference between the 2008 price and 1990 which is $4.02-$1.37= $2.65. Then the difference you've got which is $2.65, divide it to the current market price which is $4.02 to get the how many percentage it increased since then, $2.65/$4.02= 0.65920398 then multiply it to 100. It would be 65.92 or 66% if rounded off to whole number.
Answer:
Eudora spent 0.5 hours from home to library and 1.5 hours from library to school
Step-by-step explanation:
Given
Home to Library:
-- Average Speed
Library to School
-- Average Speed
Total
Required
Determine the time taken from home to library and from library to school
Let the time spent from home to library be x. So, from library to school will be: 2 - x
So, we have:
Home to Library:
-- Average Speed
-- Time
Library to School
-- Average Speed
-- Time
Distance is calculated as:
Home to Library:
Library to School:
The total distance is 120km. So, we have:
Collect Like Terms
Solve for x
Recall that:
So, we have:
Answer:
from the first model y=F(t)........(1) we have the equation = 25004(1010-y) ..(2).
now you recall that t=0, from equation 1 we now y=F(0)=0.
now from equation 2 we substitute y ,
which implies number of frogs= 25004(1010-y) but y=0
therefore 25004(1010-0)= 25 254 040
Step-by-step explanation:
1. you define variables.
2. you define equations
3. substitute and solve
Answer:
c + 1 = 6
Step-by-step explanation:
First, make the equation equal to 6, because Anderson earns $6 per hour.
c + 1 represent how he earns $1 more than half of Carey's hourly rate (c)
So, the equation will be c + 1 = 6
