Given that tan theta = -9/4, where 270° ≤ theta ≤ 360° a)state the 5 trigonometric ratios as a fraction b) determine the value of theta to the nearest degree

Answers

Answer 1

Answer:

Step-by-step explanation:

θ lies in 4th quadrant.

cos θ and sec θ are positive all other trigonometric ratios are negative.

sin θ/cos θ=-9/4

sin θ=-9/4 cos θ

we know sin² θ +cos ² θ =1

(-9/4 cos θ)²+cos ² θ =1

cos ²  θ (81/16+1)=1

cos ²θ((81+16)/16)=1

cos² θ=16/97

cos θ=4/√97

sin θ=-9/4*4/√97=-9/√97

sec θ=1/cos θ=√97/4

cosec θ=1/sin θ=-√97/9

cot θ=1/tan θ=-4/9

[tex]\ theta=tan^{-1}(-9/4) \approx 294 ^\circ[/tex]


Related Questions

For which function defined by a polynomial, are the zeros of the polynomial -2 and -7?

Answers

Answer:

Step-by-step explanation:

f(x)=a(x+2)(x+7)=a(x²+2x+7x+14)

or f(x)=a(x²+9x+14)

it has zeros as -2 and -7.

sin(Sin^-1 x) = x for -1 Please select the best answer from the choices provided
True?
False?
Thanks!

Answers

The answer will be ture

Answer:

True

Step-by-step explanation:

please help!
Will Mark Brainlest!

Answers

Answer:

Scale factor could be calculated by the ratio of a pair of corresponding sides:

Here, select the top sides, scale factor = 44/22 = 2

Hope this helps!

:)

It is multiplied by two

the altitudes of a triangle intersect at the______

Answers

Answer:

the altitudes of a triangle intersect at the "orthocenter".

Step-by-step explanation:

The orthocenter is the point where the three altitudes of a triangle meet if the triangle is acute.

Zachary is solving the following equation.

Three-fourths (x minus 8) = 12

Which is the best first step to begin to simplify the equation?

Answers

Answer:

look below

Step-by-step explanation:

first distribute 3/4 into (x-8)= 3/4x-6

3/4x-6=12

then add 6 to both sides to get rid of -6

3/4x=18

Now multiply 4 times 18 to get rid of division (72)

now you are left with 3x=72, so you now divide by 3 and you get x=24

Answer:

The correct answer is C

32/34 Marks
Show that 155 can be expressed as the sum of a power of 2
and a cube number.

Answers

Answer:

[tex] 155 = {2}^{7} + {3}^{3} [/tex]

Step-by-step explanation:

[tex] \because \: 155 = 128 + 27 \\ 128 = {2}^{7} \: \: and \: \: {3}^{3} \\ \\ \huge \red{ \boxed{ \therefore \: 155 = {2}^{7} + {3}^{3} }}[/tex]

Jeffrey loves living in the house where he grew up, but the house is starting to show its age. His latest project is to replace his kitchen countertops with granite, which he plans to pick up from the hardware store tomorrow. The granite weighs 16 pounds per square foot, and his pickup truck bed can safely hold half a ton of weight. If he also plans to pick up a 120-pound kitchen sink in the same trip, how many square feet of granite will his truck be able to carry?

Answers

Answer:

Jeffrey's pickup truck will be able to carry 55 square feet of granite.

Step-by-step explanation:

There are 2000 pounds in 1 Ton

Jeffrey's pickup truck bed can safely hold half a ton of weight.

So that means his pickup truck can hold

2000/2 = 1000 pounds

He also plans to pick up a 120-pound kitchen sink in the same trip.

So the remaining weight limit is

1000 - 120 = 880 pounds

Since the granite weighs 16 pounds per square foot

880/16 = 55 sq ft.

Therefore, Jeffrey's pickup truck will be able to carry 55 square feet of granite.

Answer:

The answer is 55

Step-by-step explanation:

Please answer correctly !!!!!! Will mark brainliest !!!!!!!!!! No explanation needed !!!

Answers

Answer: x = 2

Step-by-step explanation:

Answer:

x = ± 2

Step-by-step explanation:

Given

(x² + 4)² - 11(x² + 4) + 24 = 0

Use the substitution

u = x² + 4, then

u² - 11u + 24 = 0 ← in standard form

(u - 3)(u - 8) = 0

Equate each factor to zero and solve for u

u - 3 = 0 ⇒ u = 3

u - 8 = 0 ⇒ u = 8

Change u back into terms of x

x² + 4 = 8 ( subtract 4 from both sides )

x² = 4 ( take the square root of both sides )

x = ± [tex]\sqrt{4}[/tex] = ± 2

One value of x tat is a solution is x = 2

What is the equation of the line, in point-slope form, that passes through the points (-7, -10) and (-6, -8)?

Answers

Answer:

not sure if that is the Answers

The equation of a line is y = mx where m is the slope. That line passes through the origin. If you want it to pass through some point (a, b) you subtract the coordinates like this: y - b = m (x - a). That is the point-slope form, and you can rewrite it in other forms if it is convenient. You may do this with any point on the line.

Step-by-Answers

Hassan writes an algebraic expression with four terms. The x-term has a coefficient of 2, and the z-term has a coefficient of -1. The expression has a constant term less than zero. Which expression could he have written? 2 x + z + 5 minus 6 z squared
2 x minus z minus 5 + 2 z squared
Negative 2 x minus z minus 5 + 2 z squared
Negative 2 x + z minus 5 + 2 z
squared
Thank you in advice

Answers

[tex]2x - z - 5 + {2z}^{2} [/tex]

Step-by-step explanation:

The coefficient of x is 2= 2x

the coefficient of z is -1 which is = (-1)z= -z

the constant term is less than zero which means that the constant term is a negative number.

so the answer becomes

[tex]2x - z - 5 + {2} { (- 1)}^{2} [/tex]

which is =2x-z-3

Answer:

2 x minus z minus 5 + 2 z squared

Step-by-step explanation:

Olivia has $143 in the bank. She withdraws $40. Then she deposits &92. Write an addition expression to represent the situation. Then find the sum.

Answers

Answer & Step-by-step explanation:

Answer after you have shown organized work to get to the solution. 4. If you have ... content that you may have trouble with- search under 6th and 7th grade math. If you are ... Olivia has $143 in the bank. She withdraws. $40. Then she deposits $92. Write an addition expression to represent the situation. Then find the sum. 8

6a - 4b = 6b + 2a
solve for a

Answers

Answer:

[tex]a = \frac{5}{2}b[/tex]  

Step-by-step explanation:

6a - 4b = 6b + 2a

Combine like terms:

6a - 2a - 4b = 6b (Subtract '2a' from both sides)

4a = 6b + 4b (Add '4b' to both sides)

4a = 10b

[tex]a = \frac{5}{2}b[/tex]   (Divide both sides by 4)

Therefore, when simplified, [tex]a = \frac{5}{2}b[/tex].

Kelsi has 48 books 2/6 of those books are fantasy and sci-fi .3/8 of those books are sci-fi . How many of kelsi’s books are sCI-fi

Answers

Answer:

We know that 2/6 * 48 = 16 books are fantasy and sci-fi. Of those, 16 * 3/8 = 6 books are sci-fi.

Answer:

[tex]6[/tex]

Step-by-step explanation:

[tex]\frac{2}{6} \times 48[/tex]

[tex]16[/tex]

[tex]16 \times \frac{3}{8}[/tex]

[tex]\frac{48}{8}[/tex]

[tex]=6[/tex]

What does pi equal??





WILL GIVE BRAINLIEST!!!!!!!!:)

Answers

Answer:

The digits go on for infinity (3.14159. . .), but the simplified version is equal to 3.14.  

Step-by-step explanation:

cebOOK
Estimate the solution to the system of equations.
You can use the interactive graph below to find the solution.
y = -1 + 2
y = 3r -4

Answers

Answer:

r = 5/3

Step-by-step explanation:

Given the following exponential function, identify whether the change represents growth or decay, & determine the percentage rate of increase or decrease
y = 250 (1.078) ^x

Answers

Answer:

The exponential function represents growth, the percentage rate of increase is 7.8 %

Step-by-step explanation:

Please see the attachment.

The exponential function represents growth, the percentage rate of increase is 7.8 %

Two triangles are similar. The sides of one are three times as long as the sides of the other. What is the ratio of the areas of the smaller to the larger?

Answers

Answer:

1 : 9

Step-by-step explanation:

Given 2 similar figures with sides in ratio a : b , then

ratio of areas = a² : b²

Here the ratio of sides = 1 : 3 , thus

ratio of areas = 1² : 3² = 1 : 9

The ratio of the areas of the similar triangles is 1 : 9

What are similar triangles?

If two triangles' corresponding angles are congruent and their corresponding sides are proportional, they are said to be similar triangles. In other words, similar triangles have the same shape but may or may not be the same size. The triangles are congruent if their corresponding sides are also of identical length.

Corresponding sides of similar triangles are in the same ratio. The ratio of area of similar triangles is the same as the ratio of the square of any pair of their corresponding sides

Given data ,

Let the first triangle be represented as ΔABC

Let the second triangle be represented as ΔDEF

And , they are similar triangles

Now , the sides of one are three times as long as the sides of the other

Let's call the sides of the smaller triangle a, b, and c, and the sides of the larger triangle 3a, 3b, and 3c. Then we know that:

a : 3a = b : 3b = c : 3c

Simplifying this, we get:

1 : 3 = 1 : 3 = 1 : 3

This means that the corresponding sides of the two triangles are in a ratio of 1:3

Now, let's use the formula for the area of a triangle:

A = ( 1/2 ) x base x height

The base and height of the two triangles are also in a ratio of 1:3, so the ratio of their areas is:

(1/2) x 1 x 1 : (1/2) x 3 x 3

So , the ratio is 1 : 9

Hence , the ratio of the areas of the smaller triangle to the larger triangle is given by 1 : 9

To learn more about similar triangles click :

https://brainly.com/question/29378183

#SPJ2

Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!!!!

Answers

Answer:

f(x) = x^2 - 2x + 12

Step-by-step explanation:

the f(x) equation has a y-intercept of 12 because f(x)=x^2 - 2x has a y-intercept of 0 and the + 12 at the end shifts the function up 12 units putting the y-intercept at (0,12) while on the graph of the function g(x) it intercepts the y-axis at (0,1).

For how many teachers are both p Ar true and q false?
The diagram represents three statements about teachers:
p.9, andr
2.
OOOO
9
5
GA
7
9
2.
9
4.
6
Mark this and retum
Save and Exit
Next
Submit

Answers

Answer:

C. 5

Step-by-step explanation:

Believe in me

The number one is an example of an element in the set of natural numbers true or false

Answers

This is a true statement.

a ferris wheel with a 40-ft diameter rotates once every 30 seconds. the bottom of the wheel is located 1.5 feet above the ground. you get on at the very bottom of the ferris wheel at time t = 0 and then the ferris wheel begins to turn counter-clockwise. for the problems below, assume the wheel makes 2 full rotations.


a. at what times are you at the top of the ferris wheel? what is the height at the top of the ferris wheel?


b. at what times are you at the bottom of the ferris wheel? what is the height at the bottom of the ferris wheel?


c. at what times are you in the exact middle of the ferris wheel? what is the height of the exact middle of the ferris wheel?


d. write a cosine function to model your height above the ground over time, t.

Answers

Answer:

Step-by-step explanation:

Let y = -A cos B(t -c) + D

A, amplitude = 20ft

Period = 2π / B ( B = π / 15)

= 30

c = 0

Vertical shift D = 21.5 ft

Equation becomes

[tex]y= -20 \cos \frac{\pi}{15}( t-0)+21.5[/tex]

[tex]\to y=-20\cos \frac{\pi}{15} t+21.5[/tex]

a) Top of the ferris wheel is

t = 15sec, 45sec, height = 41.5ft

b) At the bottom of the ferris wheel

t = 0, 30sec, 60 sec

height = 1.5ft

c) Exact middle of the ferris wheel

t = 15/ 2 = 7.5sec, 22.5sec, 37.5sec, 52.5sec

d) [tex]f(t) or h = -20 \cos (\frac{\pi}{15} t)+21.5[/tex]

What is the awnser to(3+4)x6

Answers

Answer:

42

Step-by-step explanation:

(7)x6

42

Answer:

42

Step-by-step explanation:

Remember:

P arenthesess

E xponent

M ultiplictaion

D ivision

A ddition

S ubtraction

First,

3 + 4 = 7

Then,

7 x 6 = 42

Have a good day. :)

Hope this helps!

(brainliest would be appreciated)

guys can you please factor this out for me

21a+8xy^3 −24y^2−7axy

Answers

Answer:

(7 a - 8y^2) x (3-y)

Step-by-step explanation:

21a+8xy^3 −24y^2−7axy

factor out 3 from the expression

3( 7 a - 8 y^2) + 8y^3 - 7 a y

3(7 a - 8 y^2) - y x (-8y^2 + 7 a)

Factor out 7 a - 8y^2 from the expression

(7 a - 8y^2) x (3-y)

= (7 a - 8y^2) x (3-y)

PLZ HELP ME I WILL MARK BRAINLIEST AND GIVE POINTS
x/3 -2y = 14
2x + 6y = -6
Given the equations what is the value of x-y?
PLZ HELP WILL MARK BRAINLIEST

Answers

Answer:

17

Step-by-step explanation:

Based on the 2nd equation, it seems that x=-3-3y.  I got that by subtracting both sides by 6y and then dividing both sides by 2.  Now  substitute that in place of x in the first equation.  (-3-3y)/3-2y=14.  Simplify that and get               -1-y-2y=14.  Add 1 to both sides and simplify.  You get -3y=15.  Divide both sides by -3 and get y=-5.  Now substitute -5 into the equation for x. x=-3-3(-5)

x=-3+15=12

So x=12 and y=-5.  Now do 12-(-5)=12+5=17

There are some oranges and apples in a box.
The total number of oranges and apples is 54
The ratio of the number of oranges to the number of apples is 1:5
Work out the number of apples in the box.​

Answers

Answer:

45

Step-by-step explanation:

The total amount of oranges and apples in the box are 54.

54/(1+5)

54/6

= 9

Oranges to apples is in the ratio 1:5

1×9 : 5×9

9 : 45

The number of oranges in the box are 9.

The number of apples in the box are 45.

Answer:

45 apples and 9 oranges

Step-by-step explanation:

Total = 54

Ratio = 1:5

Total Parts = 1+5 = 6

Oranges:

=> [tex]\frac{1}{6} * 54[/tex]

=> 1*9

=> 9 oranges

Apples:

=> [tex]\frac{5}{6} * 54[/tex]

=> 5*9

=> 45 apples

Expand the brackets and solve
3(2x+1)=x-7

Answers

6x+3= x-7
6x+10=x
10=-5x
-2=x

Please help ! I really don’t understand:((

Answers

Answer: B

Step-by-step explanation:

just took that

Answer:

the answer is B

Step-by-step explanation:

what is the inverse of the function f(x)=2x-10 ?​

Answers

Answer:

1/2x +5

Step-by-step explanation: Right answer

Answer:

[tex]f^{-1} (x)=\frac{x+10}{2}[/tex]

Step-by-step explanation:

[tex]f(x)=2x-10[/tex]

[tex]y=2x-10[/tex]

[tex]y+10=2x[/tex]

[tex]\frac{y+10}{2}=x[/tex]

[tex]\frac{x+10}{2}=y[/tex]

[tex]\frac{x+10}{2}=f^{-1} (x)[/tex]

You buy 3 new shirts for $17 each and 5 new pairs of pants for $12 each. You give the cashier $110. Which of the following is a good estimation of the change you will get back?

Answers

Answer:No change

Step-by-step explanation:

3*17=51 + 5*12=60

So 51+60=111. So in reality you would still need to pay $1.

Answer:

you still owe 1 dollar to the store

If the 30/8 give me 3 6/8 explain to me how did I get 3 6/8 please

Answers

Answer:

See explanation.

Step-by-step explanation:

The question is not very clear, but I am assuming that you are asking how to get from 30/8 to 3 6/8

This is a mere simplification problem. We have simplified 30/8 into 3 6/8.

To start, let's check out the multiples of 8 that are less than 30

8, 16, 24. We want the largest multiple, 24. here we have

[tex]\frac{24}{8} + \frac{6}{8}[/tex]

Simplify 24/8 into 3.

Now you're done!

3 6/8!

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