Answer:
1 3/5
Step-by-step explanation:
The number 1.6 can be writen using the fraction 16/10 which is equal to 8/5 when reduced to lowest terms.
It is also equal to 1 3/5 when writen as a mixed number.
You can use the following approximate value(s) for this number:
1.6 =~ 1 1/2 (if you admit a error of -6.25%)
Answer:
9
Step-by-step explanation:
3½ + 5½ can also be phrased as 3.5 + 5.5
3.5 + 5.5 = 9
Answer:
θ = π n + π/2 for n element Z
Step-by-step explanation:
Solve for θ:
1 + 2 cos(2 θ) + cos^2(2 θ) = 0
Write the left hand side as a square:
(cos(2 θ) + 1)^2 = 0
Take the square root of both sides:
cos(2 θ) + 1 = 0
Subtract 1 from both sides:
cos(2 θ) = -1
Take the inverse cosine of both sides:
2 θ = 2 π n + π for n element Z
Divide both sides by 2:
Answer: θ = π n + π/2 for n element Z
Answer:
6.6% = tax rate
Step-by-step explanation:
The first step is to find out how much was paid in tax
24.91 - 23.37 =1.54
The tax is 1.54
The tax is the original price * tax rate
1.54 = 23.37 * tax rate
Divide each side by 23.37
1.54/23.37 = tax rate
.065896448= tax rate
Changing to percent form
6.6% = tax rate
