Answer:
3.88
Step-by-step explanation:
→ Calculate the exact value of each number
19 ÷ 5 = 3.8
3.88 = 3.888888888
15 ÷ 4 = 3.75
√15 = 3.8729
Answer:
Step-by-step explanation:
If he digs at a rate of feet every hour, and he needs hours, we want to find feet.
Ninjnhbgvyvfcfcyvybhbunubujjun
Answer:
tripling the height (8.4 ft) will triple the volume of the barrel (from 857.39 to 2,572.17)
Step-by-step explanation:
Answer:
Option (2)
Step-by-step explanation:
Step 1.
Step 2.
(cosA - cosB)² + (sinA - sinB)² = [cos(A - B) - 1]² + [sin(A - B) - 0]²
Step 3.
cos²A + cos²B - 2cosAcosB + sin²A + sin²B - 2sinAsinB = cos²(A - B) + 1 - 2cos(A - B) + sin²(A - B)
Step 4.
2 - 2cosAcosB - 2sinAsinB = 1 - 2cos(A - B) + 1
Step 5.
cosAcosB + sinAsinB = cos(A - B)
Therefore, Option (2) will be the answer.