All categories

3 years ago

Find the EXACT value of sec (-120 degrees)

Mathematics

2 answers:

Mademuasel [1]3 years ago

7 0

Well sec(-120) = 1/cos(-120).

We know that cos(-120) = -1/2.

So, 1/(-1/2) = -2.

This means that sec(-120) = -2.

kenny6666 [7]3 years ago

3 0

Sec is 1/cos so sec -120 is 1/cos -120 which is -2

You might be interested in

If mark can make 42 cakes in 7 days how many can he make in 5 days

ipn [44]

42%7=6. 6 times 5 is 30. 30 cakes in 5 days.

6 0

4 years ago

What is Xavier’s available lot coverage?

slavikrds [6]

Answer:

Step-by-step explanation:

<h3>At first:</h3>

Given,

Back of lot of the trapezoid = 175

Front of lot of the trapezoid = 185

Length of lot of the trapezoid = 100

Therefore, 

Area of the trapezoid

$= \frac{a + b}{2} c$

[On putting the values]

$= \frac{175 + 185}{2} \times 100$

[On Simplification]

= 360 × 50

[On multiplying]

= 18000

Hence,

We got the Total Area as 18000.

As per given equation,

$\frac{40}{100} = \frac{x}{total \: area}$
To find the value of x

Solution ,

$= > \frac{40}{100} = \frac{x}{total \: area}$

[On putting Total Area = 18000]

$= > \frac{40}{100} = \frac{x}{18000}$

[On cross multiplication]

=> 40 × 18000 = 100 × x

[On Simplification ]

=> 720000 = 100x

[On dividing both sides with 100]

$= > \frac{720000}{100} = \frac{100x}{100}$

[On Simplification ]

=> x = 7200

Hence,

Xavier's avaliable lot coverage (x) = 7200 (Ans)

7 0

3 years ago

Given that ∠4 ∠ 4 has a measurement of 103°, what is the measurement of ∠2

irina1246 [14]

Answer:

103 = <2

Step-by-step explanation:

Angle 4 and angle 2 are vertical angles and vertical angles are equal

<4 = <2

103 = <2

5 0

3 years ago

Read 2 more answers

Which of the following savings plans is modeled by the table of values below? .

anyanavicka [17]

Answer:

"D"

tart at $10 then 4 each day

Step-by-step explanation:

6 0

3 years ago

To find the vertex, What must you do with the value you get from the formula −b2a

antoniya [11.8K]

So you have to answer all the questions for 4?

8 0

3 years ago