Answer:
(9, 12)
Step-by-step explanation:
Given that :
u = (3, 4)
3u = 3(3, 4)
3u = 3(3, 4) = (9, 12)
Hence, 3u = (9, 12)
Answer: C = 1.69
Step-by-step explanation:
E is proportional to √C
To remove proportionality, introduce a constant (k).
E = k × √C
From question,
E = 40 and C = 25
So,
40 = k ×√25
40 = k × 5
k = 8
Now,
C = ?
E = 10.4
k = 8
E = k × √C
10.4 = 8 × √C
10.4 / 8 = √C
( 10.4 / 8 ) ^ 2 = C
C = 1.69
35 cards. 7 X 4 = 28. Add the 7 he gave to his friend, and you get 35.
No. Because the Tenths place is right after the decimal. So he will only have 1 decimal place. Welcome!