Senator Smith's percentage rating must increase by 13% in other to undo the previous decreases.
Initial rating = 62%
April rating = 57%
May rating = 57% - 8% = 49%
Final rating after decrease = May rating = 49%
In other to return to initial rating :
Initial rating - Final rating
62% - 49% = 13%
Hence, in other to undo the decrease in April and May rating, Senator Smith's percentage rating must increase by 13%
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32/36 for number 13
3/7 = 9 to 21 for number 14
We have the function
and we want to know if the function is growing or decaying.
The first thing we need to do is convert the decimal into a fraction. To do this we are going to add the denominator 1 to the decimal, and then we'll multiply both numerator and denominator by a power of 10 for every number after the decimal point:
Now we can rewrite our function:
Lets replace
with some integers to see how our function behaves; keep in mind that t<span>o raise a fraction to an exponent, we just raise both the numerator and denominator to the exponent:
-</span>
<span> </span>
-
-
Notice that the denominator is growing more faster than the denominator; therefore the function is
decaying.
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</span>
1.
mean=average of all them
(a+b+c+d+e+f+g+h)/8=75
a+b+c+d+e+f+g+h=600
(a+b+c)/3=60
a+b+c=180
subsitute
a+b+c+d+e+f+g+h=600
180+d+e+f+g+h=600
minus 180 both sides
d+e+f+g+h=420
divvide both side by 5
(d+e+f+g+h)/5=84
the mean is 84
2.
1/3 are increased by 6
that means 30 of them are increased by 6
30*6=180
adds 180 to total
180/90=2
increases mean by 2
47+2=49
new mean is 49
c.
v=hpir^2
h=50ft, or 12*50in or 600in
r=1
v=600pi1^2
v=600pi
use 3.14
v=1884 cubic inches