He practiced for 1 hour and 30 minutes
(7, -2).
Reflection will remain the same distance with the symmetrical line.
<h3>
Answer: <u>
100 ft</u>
is the hypotenuse</h3>
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Work Shown:
a = 60 and b = 80 are the two known sides
c is the unknown hypotenuse
Applying the pythagorean theorem gets us...
a^2 + b^2 = c^2
60^2 + 80^2 = c^2
3600 + 6400 = c^2
10,000 = c^2
c^2 = 10,000
c = sqrt(10,000)
c = 100
A quick way to see that 100 ft is the missing side is to note that a 6,8,10 right triangle scales up to 60,80,100 after multiplying all three sides by 10.
Or you could start with a 3,4,5 right triangle and multiply all three sides by 20.
To solve this, we are going to use the compounded interest formula:

where

is the final amount after

years

is the initial investment

is the interest rate in decimal form

is the number of times the interest is compounded per year

is the time in years
We know from our problems that she needs $20,857 for a down payment on a house in 9 years, so

and

. To convert the interest rate to decimal form, we are going to divide the rate by 100%

Since the interest is compounded quarterly, it is compounded 4 times per year; therefore,

.
Lets replace the values in our formula to find

:





We can conclude that the correct answer is: <span>
B. 17,633.17</span>
Answer:3
Step-by-step explanation:x/4=18/24 24 is 6 times greater than 4, so you divide 18 by 6 to get 3. Therefore, 3/4=18/24.