The answer for the first one is 0.24 and the second is 0.055
<h3><u>Answer</u> :</h3>
For triangle : A + B + C = π
⇒ A + B = π - C
⇒ cot(A + B) = cot(π - C)
⇒ 
⇒ 
<u>Now 1st part of the given expression</u>!
⇒ 
⇒ 
⇒ 
⇒ 1 - cotB cotC
<u>Similarly 2nd part</u>!
⇒ 1 - cotA cotB
<u>Similarly 3rd part</u>!
⇒ 1 - cotC cotA
<u>LHS</u> :


= <u>RHS</u>
<h3>Hence Proved!!</h3>
Answer:
600 minutes
Step-by-step explanation:
Let's make the two equations equal to each other.
24 + .13x = .17x
Subtract .13x from both sides.
24 = .17x - .13x
24 = .04x
Divide by .04 on both sides to get the value of x.
24/.04 = 600
x = 600
Therefore, for 600 minutes of calls will the cost of the two phone plans be equal.
Isolate the q. Note the equal sign. What you do to one side, you do to the other.
Subtract 4 from both sides
8q + 4 (-4) = 20 (-4)
8q = 20 - 4
8q = 16
Next, divide 8 from both sides to isolate the q
8q/8 = 16/8
q = 16/8
q = 2
q = 2 is your answer
hope this helps
Answer: How fast was she going per hour? 12.5 miles.
#2 is 2.7 hours in 4.5 miles
Step-by-step explanation: