The ratio of two sides of one right triangle is the same of the corresponding sides of any its similar triangles.
Call a, b, c the sides of a right triangle and A, B, C the sides of any of its similar triangles.
Then a/b = A/B, which means that this ratio is a constant.
The same for a/c = A/C, and b/c = B/C.
Even, the same is true for the inverses: b/a = B/A; c/b = C/B, and d/a = C/A.
Then, you can define a function for every one of these ratios. Those functions are the trigonometric functions.
The group founded to prevent African Americans from exercising their civil rights was the Ku Klux Klan.
<u>Explanation:</u>
The Civil Rights Act of 1866 made African Americans(Radical Republicans) citizens of the US, prohibiting them from discriminating, which must be enforced in federal courts.
The Ku Klux Klan, generally known as the KKK or Klan, is an American white supremacist party that has the main goal of targeting the African people. The three eras of Klan are namely,
- Later Klans: 1950s–present
Each era has favored radical reactionary positions, such as white nationalism, anti-immigration and, in particular, the subsequent revivalism: Nordism and anti-Catholicism.
Discounts are used to reduce the original price of an item.
David will pay $25 and 92 cents for an item of $32, before tax
The discount (d) is given as:

The price (p) of the item is given as:

So, the amount (A) paid before tax is calculated using:

Substitute known values

Express percentage as decimal

Subtract 0.19 from 1

Multiply 32 and 0.81

Hence, David will pay $25 and 92 cents for an item of $32, before tax
Read more about discounts at:
brainly.com/question/11538623
Answer:
20
Step-by-step explanation:
40 - 15 = 25
25/1.25=20
Answer:
The first one and the last one
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