Answer:
Scientific notation is a way to make these numbers easier to work with. In scientific notation, you move the decimal place until you have a number between 1 and 10. Then you add a power of ten that tells how many places you moved the decimal.
Answer:
r = 3.2
Step-by-step explanation:
If A varies inversely with the square of r, then A = kr^2
75 = k*4^2 = 16k
k = 75/16
Now A = (75/16)*r^2
48 = (75/16)*r^2
r^2 = 48(16/75) = 256/25
r = = 16/5 = 3.2
Answer:
( C ) 20 inch
Step-by-step explanation:
AB=28 inch ( given )
AP=26 inch ( given )
since that xy bisects and its perpendicular to AB and CD
then AX=48/2 = 24 inch
so by using Pythagoras theorem
then 26 squared - 24 squared = 10 inch
so XD+YD= 10 +10 =20 inch
<span>
<span>Using
the information give, we can create two equations with two unknows as shown
below:
50U+20E=10680 and
U+E=280.
Where U represents Unlimited ride passes
and E represents Entrance-only passes. We can use the second equation to find
the value of U in relation to E. So that U is represented as U=282-E. We then
proceed to substitute E in the first equation using the value we assigned it
in relation to U so that we can have only one unknown value in the equation.
So 50U+20E=10680 becomes 50(282-E)+20E=10680. Simplifying this equation,
14100-50E+20E=10680. Putting the unknowns on one side we end up with
14100-10680=50E-20E. Solving for E, we end up with E=114. U can also be
calculated by substituting the already known value of E in the simpler
equation U=280-114. This means that the value of U is 168. So the number of
unlimited passes that were sold is 168</span></span>
Answer:
16.76
Step-by-step explanation: