Answer:
77 litres
Step-by-step explanation:
1L = 0.26 gal
0.26 gal = 1L
Divide both sides by 0.26
1 gal = 1 ➗ 0.26
1 gal = 3.85 L
Now multiply both sides by 20
20 gal = 3.85 × 20
20 gallons = 77 litres
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Answer:
???
Step-by-step explanation:
Answer:
Yes ,0.3434434443 is a rational number.
Answer:
a = 1√6
b = -2
Step-by-step explanation:
Hello,
To solve this trigonometric problem, we need to convert this values into fractions
a).
Sin45° = 1/√2
cos30° = √3/2
Sin60° = √3/2
Sin45° / (cos30° + sin60°) = [(1/√2) ÷ (√3/2 + √3/2)]
(1/√2) ÷ (√3/2 + √3/2)
Add √3/2 + √3/2
1/√2 ÷ 2√3/2
1/√2 × 2/2√3
2/2√(2×3)
2/2√6
1/√6
b
Cos 180° = -1
Sin150° = ½
Tan135° = -1
2cos180° - 2sin150° - tan135°
(2 × -1) - (2×½) - (-1)
-2 - 1 + 1 = -2
Sin is the measure of the opposite leg over the hypotenuse from the given angle:
opposite/hypotenuse
We must find the sin of Angle A, and in order to do so we must find the opposite leg and hypotenuse:
opposite leg/hypotenuse
8/10
Simplify:
8/10 = 4/5
Hence, the sin of <A is 4/5
