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gtnhenbr [62]
3 years ago
13

Find all solutions of the equation in the interval [0,2pi) 8sec^2x+4tan^2x-12=0

Mathematics
2 answers:
andrezito [222]3 years ago
6 0
Π/6+2πk
5π/6+2πk
you need to factor and use trig identities

____ [38]3 years ago
3 0
8(1+tan^2x)+4tan^2x-12=0.
8+12tan^2x-12=0
12tan^2x=4
tanx=1/sqrt(3)
x=atan(1/sqrt(3))
x=0.5236
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Avery has 2 blue marbles. One sixth of Avery's marble are blue. How many marbles does Avery have?
katrin [286]

Answer:

Step-by-step explanation:

The equation

2 = (1/6)x represents this situation.

2 is 1/6 of some value.  In this case, the value is the total number of marbles.  2 represents 1/6 of the total number of marbles is how to read that equation in context.  Solve that equation for x

2 = (1/6)x  

12 = x           (multiply both sides by 6 to get rid of the fraction)

6 0
3 years ago
A baseball team has three different pitchers. Randy pitched 3 innings and allowed 2 runs, Felix pitched 5 innings and allowed 4
seropon [69]
Randy averages .66 Runs per inning
Felix averages .8 Runs per inning
Johan averages .71 runs per inning

Therefore, Randy has the lowest number of runs allowed per inning.
3 0
3 years ago
HELP ME PLEASE!! Urgently needed!!!
elixir [45]
The equation for the first part would be 4.50p+40=112.
This is because he earns 40 dollars in wages which doesn't change but the number of shoes he commissions, which would be 4.50 per pair. varies based on how many he commissions.

The answer to your second part would be 16.
To find the number, you subtract 40 from each side which gets you 4.50 = 72. From there you just divide which gets you 16.

Another easy way to do it would just be substituting until you find the right number like on a calculator but if you don't have a calculator on hand (let's say for a test), than the first way would be more effective.
4 0
3 years ago
1. A bag has tiles with two-digit numbers (10-99) on them. A random tile is 4 points
stiks02 [169]

Answer:

<h2>B.</h2>

Step-by-step explanation:

The probabilty is defined as the ratio between the total events and the total outcomes possible.

In this case, we have 90 total outcomes, which are all two-digit numbers. The event is only one, the number 32. Using the definition, we have

P=\frac{1}{90}

Therefore, the right answer is B.

3 0
3 years ago
Read 2 more answers
A student solved this problem and said the answer was 8 3/4 hours.
aleksklad [387]
No way is this correct!
5-3/2-9/4=1 1/4
The answer is C.
7 0
3 years ago
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