Mathematics High School

Which trigonometric identity is the reciprocal of the cos identity?

A. cosec
B. sec
C. sin
D. cot

Answers

Answer 1

Step-by-step explanation:

The secant is the reciprocal of the cosine. It is the ratio of the hypotenuse to the side adjacent to a given angle in a right triangle.

Related Questions

Zayd can row 3/8 of a mile in 1/4 of an hour. What is the unit rate the describes the miles per hour?

Answers

Answer:

1.5mph

Step-by-step explanation:

Given parameters:

Distance sailed  = [tex]\frac{3}{8}[/tex]miles

Time taken  = [tex]\frac{1}{4}[/tex]hr

Unknown:

 Unit rate of sail in miles hour = ?

Solution:

This is also the speed of the sail. It is the distance divided by time taken.

 Speed  = [tex]\frac{distance}{time}[/tex]  

 Speed  = [tex]\frac{\frac{3}{8} }{\frac{1}{4} }[/tex]  

 Speed  = [tex]\frac{3}{8}[/tex]  x 4 = 1.5mph

Plz help out!! And no this is not a test :)

Answers

9514 1404 393

Answer:

  B = (-4, 5)

Step-by-step explanation:

Reflection over the origin changes the signs of the coordinates.

  (x, y) ⇒ (-x, -y)

  (4, -5) ⇒ (-4, 5)

Point B is (-4, 5).

Answer:

(-4,5)

Step-by-step explanation:

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i do not know

Q6: 24 students in a class took an algebra test.
If 18 students passed the test, what percent passed?
Answer:
%

Answers

Answer:

25%

Step-by-step explanation:

18/24 passed that reduces 3/4.

So 1/4 didn't pass

Saturday morning, 55% of the customers at The Gap spent over $50. If there were 300 customers at The Gap that morning, how many of them spent more than $500 ?

Answers

Answer:

165 customers spent more than $500.

Step-by-step explanation:

If you ment to put $500 for both, then you have to multiply 300 by 55%. This will give you 55% of 300 which is the amount of people that spent more than $500. You multiply them to get your answer.

the equation of the line that has a slope of

-23 that passes through the point (5, 1). Which form did you choose to write the equation in and why?

Answers

Y = -23x + b
1 = -23(5) + b
1 = -115 + b, b = 116
Y = -23x + 116
I choose the slope intercept form since it was easy to calculate. The slope was given, you just need to plot in the points to find the y- intercept.

Answer:

I used the y=Mx+b equation because it has a good job showing each of the elements in the equation.

Step-by-step explanation:

The slope is -2/3 so if you add it to (5,1) it would be (3,4) as you just add three and subtract to to the point. I’m going to use for this equation as it is more simple and it gives a good job showing what each element is in the equation. M is the slope, so now we have y= -2/3x +b. To find b, substitute x and y for a point on this line which I will use the point (3,4) for. Now, multiply -2/3 by 3 and you will get -2 after. Now you have 4=-2+b which the answer would be 6.

This is just an example of finding the equation, which form I used, and why.

Find the value of f(-3).

Answers

Answer:

It's 27

Step-by-step explanation:

what is the value of ? pls help

Answers

The value of ? is 85 degrees.

can someone please tell me how to solve this ​

Answers

Answer:

21.33 units (rounded)

Step-by-step explanation:

The height, x, can be determined through the Pythagorean Theorem:

a^2+b^2=c^2 (where b will be our height)

(22/2)^2+b^2=24^2

121+b^2=576

b^2=455

b=21.33072901

So the height is about 21.33 units

what is the inverse of R(x)= 2(4x)

Answers

Answer:

The inverse function is y=x−24 .

Step-by-step explanation:

Four groups of students will clean a total of 3.25 miles of the trail along Lady Bird Lake. Each group will clean the same length of the trail. What length of the trail will each group clean?

Answers

You should do 3.25/4. This will give you how much of the trail each group cleans. Have a nice day!!!

About this question, look at the photo

Answers

Answer:

27/20 or 1.35

Step-by-step explanation:

plz mark brainliest

(a–3b)(a+3b)+(2a–3b)2–4a(b–a)

Answers

Answer:

Step-by-step explanation:

5a²-9b²+4a-6b-4ab

Alyssa has 2.1 meters of ribbon to make bows. She needs to make 3 bows. If she uses an equal amount of ribbon for each of her bows, and uses all of the ribbons she has, how much ribbon will she use for each bow?

Use the Math Learning Center App, Number Pieces to show your thinking using place value blocks. Enter your answer and explain how you used the place value blocks to model the problem.

Answers

Answer:

0.7 ribbon

Step-by-step explanation:

To find how much is needed, use division.

So, to show your work:

2.1 divided by 3 = 0.7

I hope this is what you were looking for and I hope this is the correct answer for you!!!  :)

5. The largest mosaic in the world is on the walls of the central library of the

Universidad Nacional Autonoma de Mexico in Mexico City. The mosaic depicts

scenes from the nation's history and covers an area of 4000 m2. If the entire

mosaic were on one square wall, what would the dimensions be? Estimate your

answer to the nearest whole number and then use your calculator to get the

length to the nearest HUNDRETH.

Answers

Answer:

63.25m

Step-by-step explanation:

The area of the square wall = L² where;

L is the length of the wall.

Given

Area of the mosaic = 4000m²

Substitute into the formula and get L

4000 = L²

Square root both sides

√4000 = √L²

√4000 = L

Rearrange

L = √4000

L = 63.25m (to the nearest hundredth)

Hence the length to the nearest hundredth is 63.25m

a man earned and interest of 240 in 4 years at 20%per annum simple interest. calculate the principal​

Answers

Answer:

Step-by-step explanation:

P x 20/100 x 4=240

1/5 x 4p =240

   4/5p x5=240 x 5

        4p/4=1200/4

             p=300

       

We need I = prt.

240 = p(0.20)(4)

240/[(0.20)(4)] = p

Use your calculator to calculate the left side.

The results of a survey of customers at PetSmart showed that 27 owned dogs, 38 owned cats, and 16 owned both dogs and cats. How many people were surveyed?

Answers

Answer:

81 people

Step-by-step explanation:

addition pretty much

rewrite in simplest terms. 8(-5d-9) -3(-6d+10)

Answers

Answer:

− 22 d − 102

Step-by-step explanation:

what is the slope of (-3,-5) (-2,-2)

Answers

Answer:

m=3

Step-by-step explanation:

X=-4y + 4
2x + 8y =8
How many solutions are there?

Answers

Answer:

One solution.

Step-by-step explanation:

x+5y=20
x+3y=14

x=
y=

Answers

Answer:y  = − 1 5 x + 4

Step-by-step explanation:

Do elimination
x + 5y = 20
x + 3y = 14
Subtract both equations
2y = 6
y = 3
Plug in 3 for y and solve for x
x + 5(3) = 20
x + 15 = 20
x = 5
In conclusion, x = 5, y = 3

Please help me, please

Answers

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[tex] - 5 \: \: and \: \: 3[/tex]

Look :

[tex] - 5 + 3 = - 2[/tex]

[tex] - 5 \times 3 = - 15[/tex]

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Answer:

-5 and 3

Step-by-step explanation:

because -5 + 3 = -2 and -5 X 3 = -15.

-5 is bigger in -5 + 3 so your answer would be negative.

and for the multiplication on use the sleeping dog - - + you have a negative and a positive so the answer would be negative.  

If h(x) = [tex]\frac{2x+7}{x}[/tex] find [tex]h^{-1} (x).[/tex]

Answers

Answer: The answer is [tex]h^{-1}(x)=-\frac{7}{2-x}[/tex]

Step-by-step explanation: You meant to say that I was finding the inverse, so to find the inverse, interchange the variables and solve for y.

How do I work out the size of angle x

Answers

All 3 of your angles should add up to 180. That means you need to add 101 + 38 + x = 180. X = 41

please help me i would appreciate it greatly

Answers

Answer:

I would put B

Sorry if it's wrong I would have to know what the test is about to answer this

Step-by-step explanation:

Answer is D. a^10.
Step by step:
a^20-10
a^10

What is the answer to this math problem; 12 5/6x-14x+ 1/6x

Answers

Answer: wyd are you mad at me

Answer: Who are

Step-by-step explanation:

What is the product of the polynomials below?
(5x2 - x-3)(2x+6)
A. 10x3 + 28x2 + 12x +18
B. 10x2+28x2 + 12x +3
O C. 10x2 +28x2 - 12x-18
D. 10x2 +28x2 - 12x-3

Answers

It b because if you 5x5 10 and then multiple by 3

Find at least one solution to the following equation:
sin(x
2 − 1)
1 − sin(x
2 − 1) = sin(x) + sin2
(x) + sin3
(x) + sin4
(x) + · · ·

Answers

For |x| < 1, we have

[tex]1+x+x^2+\cdots=\displaystyle\sum_{n\ge0}x^n=\frac1{1-x}[/tex]

We have |sin(x)| ≤ 1, with equality when x = ± π/2. For either of these, the right side of the equation does not converge, since it's either an infinite sum of 1s or an infinite alternating sum of 1 and -1.

So for |sin(x)| < 1, we have

[tex]\sin(x)+\sin^2(x)+\sin^3(x)+\cdots=\dfrac1{1-\sin(x)}-1=\dfrac{\sin(x)}{1-\sin(x)}[/tex]

so the equation is equivalent to

[tex]\dfrac{\sin(x^2-1)}{1-\sin(x^2-1)}=\dfrac{\sin(x)}{1-\sin(x)}[/tex]

One obvious set of solutions occurs when x = x² - 1 :

x² - x - 1 = 0   →   x = (1 ± √(5))/2

i.e. the golden ratio φ ≈ 1.618 and 1 - φ ≈ 0.618.

Is the relation in the mapping below a function? Explain.
Domain
1,3,5,7
Range
2,4,6

Answers

Answer: No

Step-by-step explanation:

The range and the Domain aren’t equal

solve what is 1/2 x 15

Answers

Answer:

7.5

Step-by-step explanation:

it's basically just 15 divided by 2

The equivalent value of the expression (1/2 x 15) is 7.5.

What is algebraic expression?                      

In mathematics, an algebraic expression is an expression built up from constant algebraic numbers, variables, and the algebraic operations.

Given is to solve the expression as -

1/2 x 15

We can write the expression as -

{x} = 1/2 x 15

{x} = 15/2

{x} = 7.5 x 2/2

{x} = 7.5

Therefore, the equivalent value of the expression (1/2 x 15) is 7.5.

To solve more questions on expressions, visit the link below -

https://brainly.com/question/27911936

#SPJ5

Solve for the value of y.​

Answers

Answer:

y=6

Step-by-step explanation:

add both expressions together. 14y+6. Then set this equal to 90, because this is a 90 degree angle. Solve for y. 84=14y. y=6

Step-by-step explanation:

90= 6y+5+8y+1

14y=84

y=6

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