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Karolina [17]
3 years ago
13

Which of the following angles is in the solution set of sec^2θ - 3secθ - 2 = 0 for 0° ≤ θ < 360°.

Mathematics
1 answer:
STALIN [3.7K]3 years ago
4 0
1 / cos^2 O - 3 / cos O - 2 = 0
1 - 3 cos O -  2 cos^2 O = 0

2 cos^2 O + 3 cos O - 1 = 0

cos O = 0.2807 , -1.78   ( -1.78 cannot be a solution)

O = 74 degrees  (from  0.2807) another solution is 360-74 =  286 degrees

Its D
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Direction: Read and analyze each question below, the write the letter of the correct answer.
Natali [406]

Answer:

1 is A

2 is A

3 is none of the above

Step-by-step explanation:

3 0
3 years ago
Do not understand!!!!!
Nadya [2.5K]
The answer to this equation is 2
7 0
3 years ago
Equation for y and what if equals too
katen-ka-za [31]

The answer is y = 35x + 20.

In order to find this, start with two ordered pairs. For the purpose of this problem, we'll use (1, 55) and (2, 90). Now we use the slope formula to find the value next to x in the equation.

m(slope) = (y2 - y1)/(x2-x1)

In this equation (x1, y1) is the first ordered pair and (x2, y2) is the second. Plug in to the equation and solve.

m = (90 - 55)/(2 - 1)

m = 35/1

m = 35

Now that we have the slope, plug that into the equation along with either point to find the intercept (the last number).

y = mx + b

55 = 35(1) + b

55 = 35 + b

20 = b

Now that we have the slope and intercept, we can use each to fill in those blanks.

y = 35x + 20

4 0
3 years ago
Read 2 more answers
A short-course meter pool is 25 meters long. A short-course yard pool is 25 yards long. Which one is longer and by how much (in
ch4aika [34]

Answer:

short course meter pool and its longer by 7.021 feet or 7.02 ft

Step-by-step explanation:

if you do 25 yards times 3 you get 75ft and if you covert 25 meters into ft you get 82.021 so sutract 82.02-75=7.02. Hope this helps ;-)

3 0
1 year ago
If m proportional to n and m=5 when n=4.what is the valuue of m?when n=18
Dovator [93]

Answer:

m=22.5

Step-by-step explanation:

m is proportional to n means there is some constant k such that:

m=kn

If m=5 when n=4 then we have the following equation to solve for our constant k:

5=k(4)

5=4k

Divide both sides by 4:

5/4 =k

So k=5/4 no matter what (m,n) pair they give you where the equation is m=kn.

m=(5/4)n

What is m when n=18?

m=(5/4)(18)

m=(5/2)(9)

m=45/2

m=22.5

5 0
3 years ago
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