If the range is{25,64}
it means. F(K) =25,64 for some value of k
for 25
25=k²+2k+1
k²+2k-24=0
k²+6k-4k-24=0
K(k+6)-4(k+6)=0
(k-4)(k+6)=0
k=-6,+4
for 64
k²+2k-63=0
k²+9k-7k-63=0
k(k+9)-7(k+9)=0
(k-7)(k+9)=0
k=-9,+7
so the domain of F(k)={ -9 , -6 , 4 , 7 }
<span>The answer is 25,200.
This can be solved by using proportion.
Set up the proportion as follows:
(10,800/30,000)=(x)/(70,000)
By cross multiplying you get:
(30,000)(x)=(70,000)(10,800)
x=[(70,000)(10,800)]/30,000
x=25,200 coats</span>
Step-by-step explanation:
sorry I don't know this answer
3:30 pm if you can do half hours. If not just do 4:00 pm
Subtract the number that got an A from total students:
118 - 35 = 83
83 students did not get an A