for 1st
use the formula of inlargement
A(x,y)when enlarging by scale factor k gives A'(kx,ky)
for 2nd
a=
(2a+3)-(a-5)(2a+2)+a^2
b=
3y(7y-8)
Answer:
0.08615514661
Step-by-step explanation:
I belive this is coorect.
Answer:
$125 per week
Step-by-step explanation:
Andrew earns $6.25 per hour. If he works for 4 hours, solution will be:
$6.25 × 4 = $25 per day.
If Andrew works 5 days per week, then he earns
$25 × 5 = $125 per week.
Therefore by estimate, Andrew earns $125 per week.
Cotxcos2x = 2cotx
cos2x = 2cotx/cotx
cos2x = 2
cos2x = 2cos²x - 1
2cos²x - 1 = 2
2cos²x = 2+1
2cos²x = 3
cos²x = 3/2
√cos²x = plus minus √(3/2)
cosx = plus minus √(3/2)
80 is the median, heres an easy way to look at it
74, 77,78,78,79,79,80,80,80,80,80,81,81,82,82,82,82,82
write that down and cross out one at a time on each end until you get to the last one, or two in the middle. If it comes down to 2 numbers add and divide by 2.
