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Marina CMI [18]
3 years ago
7

Trignometric identites..

Mathematics
2 answers:
madam [21]3 years ago
7 0
TOA CAH SOH
Pythagoras Theorem
Sine rule
Cosine Rule
Monica [59]3 years ago
3 0

Answer:

tan(θ) =  sin(θ)/cos(θ)

Half Angle Identities

Note that "±" means it may be either one, depending on the value of θ/2

sin a/2

 

cos a/2

 

tan a/2

 

cot a/2

Step-by-step explanation:

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A plumber charges $17 to visit a client's home, plus an additional $36 per hour. What is the
larisa86 [58]

Answer:

I believe the duration for $89.00 is 2 hours

Step-by-step explanation:

We start off with the $17 dollars and calculate 36.00+36.00 for a total of $89. Therefore, (120 mins)/60=2 hours.

3 0
3 years ago
Read 2 more answers
10 x 1/2 + (-6) (-3)
torisob [31]
Equation

10x1/2+(-6) (-3)

Answer

23
5 0
2 years ago
Probability people where you at? 《brainlist if correct》
motikmotik
<h3>Answer:  5/9</h3>

As an approximate decimal, this is 0.5556 which converts to 55.56%

======================================================

Explanation:

Let's say there are 100 households (just for the sake of simplicity). We are told that 90% of them have answering machines. So that means 90 households have answering machines. In addition, 50 households have answering machines and call waiting. Those 50 households are part of the 90 mentioned previously.

We then select a house at random. Someone tells us (or we have some kind of prior knowledge) that whichever house is selected, they have an answering machine. We can ignore the 10 households that don't have an answering machine. Out of those 90 households, 50 have both features. So 50/90 = 5/9 is the probability of getting a household with both features.

The answer would be 1/2 or 50% if we didn't have the prior knowledge of the household having an answering machine. But with this prior knowledge, the conditions change and so does the probability.

----------------

You could also compute 0.50/0.90 to get the same answer.

3 0
3 years ago
Slope and your-intercept of y+2x=4
Kruka [31]
Y+2x=4 To get the answer subtract the 2x from both sides making it y = -2x+4 the slope is -2 and the y-intercept is 4
5 0
3 years ago
PLEASE HELP
Margaret [11]

Answer:

$21

Step-by-step explanation:

First, find the price without the discount by adding 12 to 30:

30 + 12

= 42

To find the original cost of each game, divide 42 by 2

42/2

= 21

So, each game was originally $21

5 0
2 years ago
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