1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
beks73 [17]
3 years ago
12

Find tan2θ if θ terminates in Quadrant IV and cosθ =3/5 .

Mathematics
1 answer:
Liula [17]3 years ago
6 0

Answer:

The answer to your question is  \frac{-8}{3}

Step-by-step explanation:

Data

cos Ф = 3/5

tan2Ф = ?

Quadrant IV

Process

1.- Remember that tanФ = \frac{Opposite side}{Adjacent side}  and cos Ф = \frac{adjacent side}{hypotenuse}

then,    adjacent side = 3 and hypotenuse = 5

2.- Calculate opposite side

             O² = h² - a²

             O² = 5² - 3²

             O² = 25 - 9

              O² = 16

              O = 4

3.- Calculate the tan 2Ф

            tan 2Ф = 2(\frac{-4}{3})       The opposite side is negative in the fourth

                                           quadrangle

            tan 2Ф = \frac{-8}{3}

You might be interested in
Juan makes 75% of the goals he attempted during soccer practice. If he makes 30 goals at practice, how many does he attempt?
m_a_m_a [10]

Answer:

22.5

Step-by-step explanation:

30/4=7.5

7.5 times 3 = 22.5

Mark brainliest plz!

5 0
2 years ago
Rewrite the equation below so that it does not have fractions 3/4x-3=5/6
Slav-nsk [51]

Answer:

9x - 36 = 10

Step-by-step explanation:

3/4 x - 3 = 5/6

The least common multiple of 4 and 6 is 12.

Multiply both sides of the equation by 12.

12 * (3/4 x - 3) = 12 * 5/6

12 * 3/4 x - 12 * 3 = 10

9x - 36 = 10

5 0
2 years ago
Read 2 more answers
What equation represents a line that is parallel to y=3X +5
Lina20 [59]
A line that is parallel to another line will have the same slope, in our case, the slope of 3. Therefore, we can just change the y-intercept to create any line parallel to y=3x+5 (just remember to keep the slope the same). For example, y=3x+5, y=3x-9, and y=3x+6.2 are all equations that are parallel to y=3x+5.

:)

8 0
3 years ago
Please help with this question, thank you
Semmy [17]
Remark
The key step is just to subtract 5 from both sides. The pointed of the inequality still points away from the variable and towards the number. As long as that remains true, the correct answer can be found.

Solution
2.7 ≤ b + 5  Subtract 5 from both sides.
2.7 - 5 ≤ b
- 2.3 ≤ b      Write with the variable on the left.
b ≥ - 2.3  <<<< answer  
6 0
3 years ago
Read 2 more answers
The Hoover Dam generates an average of about 11,506,000 kilowatt-hours of electricity per day.
OLEGan [10]

Answer:

161,084,000

Step-by-step explanation:

7 x 11,506,000 = 80,542,000

80,542,000 x 2 = 161,084,000

6 0
2 years ago
Other questions:
  • Each year, taxpayers are able to contribute money to various charities via their IRS tax forms. The following list contains the
    9·2 answers
  • What is the solution to the system of equations graphed below? On a coordinate plane, 2 lines intersect at (4, 2).
    12·2 answers
  • 5.28 rounded to the nearest tenth
    11·2 answers
  • What is the value of the expression when x = 4?
    6·1 answer
  • True or false.
    9·1 answer
  • If a single die is rolled twice there are how many possible outcomes
    14·1 answer
  • The perimeter of the triangular park is 16x-4. What is the missing length? (Simply the answer)
    5·2 answers
  • Sally goes on a hike. The distance she walks compared to the amount of time she walks is shown on the graph. Which statement is
    6·1 answer
  • You are dealt one card from 52 card deck. Find the possibility that you are dealt a heart or a picture card
    13·1 answer
  • Choose the correct graph of the function y=√x+1.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!