Answer:
1, 3, 5, 7
Step-by-step explanation:
You can use the identity ...
Then ...
So, {a, b, c, d} = {1, 3, 5, 7}.
Answer:
Step-by-step explanation:
Answer:
64
Step-by-step explanation:
We have two squares of 4x4 units and 4 rectangles of 4x2 units, therefore
Total Area is therefore 32 + 32 = 64 square units
9514 1404 393
Answer:
-101 feet
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you that the relevant relation is ...
Tan = Opposite/Adjacent
Opposite = Adjacent × Tan
height = (0.5 × 5280 ft) × tan(47°) ≈ 2831 ft
__
The usual relation between estimates and errors is ...
error = estimate - actual
Then ...
actual = estimate - error
For the given angle and error, the actual angle is ...
actual angle = 47° -(-1°) = 48°
actual height = (2640 ft)·tan(48°) ≈ 2932 ft
Then the change in the height of the mountain due to the error is ...
2831 ft -2932 ft = -101 ft
The error of -1° in angle estimate creates an error of -101 ft in the height estimate.
8.3 × 3 = 24.9
45 + 24.9 = 69.9
Hope this helps!