First: Equations are solved. is an expression, and expressions can be simplified.
Now suppose . Imagine a right triangle with one angle (not the one opposite the hypotenuse, of course) labeled . This relation suggests that
and under the hood, we're assuming that , because otherwise we wouldn't be able to properly alternate from to so seamlessly.
Now,
so the given expression is the same as the tangent of that same angle .
If , then in the triangle, the leg opposite the angle occurs with the length of the hypotenuse in a ratio of to 2. By the Pythagorean theorem, the remaining side - call it - satisifies
and we have
Answer:
i believe the answer is 46. good luck!
Answer: a) A = 3
b) P = 4
c)
<u>Step-by-step explanation:</u>
Period (P) is the reciprocal of the frequency (f)
f = → P =
y = A cos (Bx - C) + D
- A = 3
- → → 4B = 2π → →
- C = none given
- D = none given
B, equal to because when you see the lines on the outside of any number, negative or positive, it's that number but positive. So now your expression is 8_8 and 8 equals 8. so your final answer is b, 8 is equal to 8
Answer:
The number of letters in the one street be 220 .
Step-by-step explanation:
As given
A postman has to deliver 450 letters .
The number of letters delivered in one street is twice the number delivered in other .
Let us assume that the number of letters delivered in second street be x.
Let us assume that the number of letters delivered in first street = 2x
As given
If he is left with 120 letters .
Thus
The number of letter delivered in one and other street = 450 - 120
= 330
Than the equation becomes
x + 2x = 330
3x = 330
x = 110
The number of letters in the one street = 2 × 110
= 220
Therefore the number of letters delivered in first street be 220.