Answer:
78
Step-by-step explanation:
plug in -3 as x
6(2(-3)^2-5)
6(2(9)-5)
6(18-5)
6(13)
78
The USA has 250,000 rivers
c = $10 + $0.50s
Assuming you bought 10 songs; then
c = $10 + $0.50(10)
= $10 + $5
c = $15
Bear in mind that the $10 is only a one-time membership fee, so, any purchase of songs after your payment of the $10 will be computed by $0.50s.
Try this solution:
note, that sin(pi/2+x)**=cosx, it means sin(x+pi/2)= -4/5.
ps/ ** may be used the formula sin(a+b)=sinacosb+sinbcosa.
Answer:
Each Tomskian build 6 igloos per week.
Each Kyzylian build 5 igloos per week.
Step-by-step explanation: