Answer:
Question 13: For age groups y=1 and y=1.3 response is 8 microseconds.
Question 14: The club was making a loss between 11.28 and 4.88 years.
Step-by-step explanation:
Question 13:
The age group y for which the response rate R is 8 microseconds is given by the solution of the equation
We graph this equation and find the solutions to be
Since only positive solutions for y are valid in the real world we take only those.
Thus only for age groups y=1 and y=1.3 the response is 8 microseconds.
Question 14:
The footbal club is making a loss when 
Or
We graph this inequality and find the solutions to be
and 
Since in the real world only positive values for t are valid, we take the the second solution to be true.
Thus the club was making a loss in years
Answer:
17
Step-by-step explanation:
Answer:
The simple interest was earned is $116
Yes; the answer is $116
Step-by-step explanation:
- The rule of the simple interest is:
→ <em>I = P r t</em>, where I is the interest, P is the money invested, r is the rate
of interest in decimal, and t is the time of investment
- Casey deposited $1,450 in a bank account with an interest rate of 4%
- We need to find the amount of interest Casey earned in two years
- The interest is simple
∵ P = $1450
∵ r = 4% = 4/100 = 0.04
∵ t = 2 years
∵ The interest is simple
∴ <em>I = Prt</em>
- Substitute the values of P , r , t in the rule
∴ I = 1450 × 0.04 × 2 = 116
∴ <em>The simple interest was earned is $116</em>
* <em>Yes; the answer is $116</em>
Answer:
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
equate to zero
so
substitute in the formula
therefore
StartFraction 2 Over 11 EndFraction plus-or-minus StartFraction StartRoot 15 EndRoot Over 11 EndFraction
