Verify the identity:

2 sec^2 x − 2 sec^2 x sin^2 x − sin^2 x − cos^2 x = 1

Answers

Answer 1

[tex]\mathrm{Solving}\: \mathrm{prove\:2\sec ^2\left(x\right)-2\sec ^2\left(x\right)\sin ^2\left(x\right)-\sin ^2\left(x\right)-\cos ^2\left(x\right)=1}\\steps \\2\sec ^2\left(x\right)-2\sec ^2\left(x\right)\sin ^2\left(x\right)-\sin ^2\left(x\right)-\cos ^2\left(x\right)=1\\\mathrm{Manipulating\:left\:side}\\2\sec ^2\left(x\right)-2\sec ^2\left(x\right)\sin ^2\left(x\right)-\sin ^2\left(x\right)-\cos ^2\left(x\right)\\=-1+2\cos ^2\left(x\right)\sec ^2\left(x\right)\\=1[/tex]Answer:

Step-by-step explanation:


Related Questions

plz help for a brainly

Answers

Answer:

364yd^2

Step-by-step explanation:

LxWxH

Answer:

its 364

Step-by-step explanation:

you do length times width times height

Type your answer and describe how
you found the answer
ROSS is a museum tour
guide at the Art Museum.
He charges $35 per person
for a 1 hour tour. He
typically has 54 people on
tours during the week. His
expenses for the week are
approximately
$108.63.
What is the amount of
profit that Ross will make?

Answers

Answer:

Ross's profit it 1,781.37

Step-by-step explanation:

$35 per person and 54 people= 35x54=1890

Profit= the amount of money he makes after his expenses.

1890-108.63=1781.37

Help me find the value of x plss

Answers

Answer:

Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication and division. To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.

Answer:

What do we see in triangle -- adj and hyp

cosine since it is SOH CAH TOA

cos(14)/1 =x/480

Answer = 465.74 the real rounding is 466

20 POINTS!!!!!The monthly salary of an employee with 33 hours of training can be written as

Answers

Answer:
B

Explanation:

Simplify the Expression and EXPLAIN what you did and WHY.

-3(4m+3)+2m

Answers

Answer:

-10m-9

Step-by-step explanation:

open the bracket by multiplication

-3 × 4m= -12m

-3 × 3= - 9

-12m - 9 +2m

arrange like terms together

-12m +2m -9

-10m -9

What is the theoretical probability that the spinner below will land on 6 if someone spins it 48 times?

Answers

Answer:

1/4 or 12*

Step-by-step explanation:

There are 8 possibilities.  2 of them are 6.

2/8=1/4

1/4 of 48 is 12

*The theoretical probability doesn’t change no matter how many times you spin the spinner.  It will always be 1/4.  (Or 0.25, or 25%). That could be what they’re asking.  If you spun it 48 times, it would probably land on a six 12 times.  That could also be what they’re asking for.  12:48 = 1:4.

In order to solve for the variable in the equation 2 (x + 3) + 5 x = 3 (2 x minus 1), Jaleesa begins by applying the distributive property, then combines like terms. Which equation is the result of these steps?
7 x + 6 = 6 x minus 3
2 x + 6 + 5 x = 6 x minus 3
2 x + 3 + 5 x = 6 x minus 1
7 x + 3 = 6 x minus 1

Answers

Answer: 7 x + 6 = 6 x minus 3

Step-by-step explanation:

2 (x + 3) + 5 x = 3 (2 x minus 1)Now you distribute.2(x) + 2(3) = 2x+6And 3(2x) minus 3(1) = 6x minus 32x+6+5x = 6x minus 3Then combine like terms2x +5x=7x and there are no other like terms on either side of the equation.7x+6= 6x minus 3

Answer:7x+6=6x-3

Step-by-step explanation:

The uniform cross section of a cabin storage compartment on a jet plane is a sector of a circle with radius 55cm, and angle Ө c . The container is 96 cm wide. The volume of the container is 0.2178 m3. What is the angle Өc?

Answers

Answer:

I don't recognize this problem, please make sure the input is complete.

Step-by-step explanation:

sry

Evaluate 12 ÷ 2 × 6.

Answers

division first
12 over 2 x 6
= 6 x 6
= 36

Answer:

[tex]36[/tex]

Step-by-step explanation:

1) Simplify 12 ÷ 2 to 6.

[tex]6 \times 6[/tex]

2) Simplify.

[tex]36[/tex]

therefor, the answer is 36.

GIVING OUT BRAINLIEST ANSWER !! PLS HELP ME OUT !! (last minute)

Answers

Answer:

.764

Step-by-step explanation:

do it on a calculator (TI84)

Answer:

45.6°

Step-by-step explanation:

take the inverse cosine of 7/10: [tex]cos^{-1}(\frac{7}{10})[/tex]

plug it into a graphing calc and you get ≈ 45.573°, they want 1 decimal place so it would be ≈ 45.6°

A cube with sides that are 2 cm has a mass of 48 g and its density would be
___________ g/cm3.

Answers

Answer:

6g/cm^3

Step-by-step explanation:

The density of the cube would be 6 grams/cm^3. I got this answer by first finding the volume of the cube, 2^3 which gives me 8 cm as the initial volume of the cube. Then, the 48 grams of mass the cube has allows me to divide 48 / 8 which gave me 6. And 6 would be the density of the cube in grams.

Answer: 6g/cm^3

Hope this helps!

Answer:

p = 6 g/cm³

Step-by-step explanation:

Given: cube sides= 2 cm and 48 g

To find: The cube's density

Formula: [tex]{p} \frac{m}{V}[/tex]

Solution: Measure the height, width, and depth of the shipment in inches.

Multiply the three measurements (height x width x depth).

Divide the total cubic inches by 1,728 (the number of cubic inches in a cubic foot).

Divide the weight (in pounds) of the shipment by the total cubic feet.

p = density

m = mass

V = volume

Which expressions are equivalent to 3 1/4 - (- 5/8)?

Answers

Answer:

3.875

Step-by-step explanation:

A farmer wants to know the effect of using various amounts of fertilizer in relation to the yield of his crops. Be subdivided a portion of his land into 10 separate but essentially equal plots. He divided the land so that all of the plots had equal exposure to sun, rain, and other environmental conditions. He randomly selected 2 of the 10 plots and spread 2 pounds of fertilizer over each of them. Then he randomly selected 2 of the remaining plots and spread 3 pounds of fertilizer over each of them. He continued with the last sets of plots in the same manner, spreading 4, then 5, then 6 pounds of fertilizer over each of them. Below is a computer output for linear regression of amount of fertilizer versus yield for the 10 plots of land.

Predictor Coef SE Coef T P
Constant 10.100 0.7973 12.67 0.000
Fertiz 1.150 0.1879 6.12 0.000

Required:
What is the equation of the least squares regression line from this sample?

Answers

Answer:

The equation of line is

[tex]\text{yield}=1.15\times \text{fertilizer}+10.1[/tex]

Step-by-step explanation:

The general equation of line is given as

[tex]y=mx+b[/tex]

where

y is the dependent variable which is yield in this case.

x is the independent variable which is fertilizer in this case

m is the coefficient of the fertilizer whose value is 1.150 from the given values.

b is the constant whole value is 10.100 from the given values.

Thus the equation becomes.

[tex]\text{yield}=1.15\times \text{fertilizer}+10.1[/tex]

Identify the area of the figure shown.

Answers

Answer:

54

Step-by-step explanation:

Find the area of the triangle:

1/2((3 + 5 + 3)*8) = A

1/2((11)*8) = A

1/2(88) = A

44 = A

Find the area of the rectangle:

2 * 5 = A

10 = A

Add the two areas:

10 + 44 = A

A = 54

John is 3 years older than Susan and khalid is 5 years younger than her . The sum of their ages is 40 .
Find their ages.

Answers

Answer:

John is 17,

Susan is 14,

and Khalid is 9.

Step-by-step explanation:

a = John's age

b = Susan's age

c = Khalid's age

Let's set our rules from the given information.

a = b + 3

c = b - 5

a + b + c = 40

Now, we can solve for b through substitution.

(b + 3) + b + (b - 5) = 40

3b - 2 = 40

3b = 42

b = 14

So, now that we have Susan's age, we can follow the rules and see if it holds.

17 + 14 + 9 = 40 Viola!

John gets his first job working at an ice cream shop because he loves ice cream. He gets paid $9 per hour. Create a table to demonstrate how much money John will make from 0 - 6 hours. Let x equal the number of hours worked, and let y equal the amount of money that he will make. Then, create a graph with your results.​

Answers

Answer:

1hr: $9

2hr: $18

3hr: $27

4hr: $36

5hr: $45

6hr: $54

Step-by-step explanation:

You can use Desmos, the graphing calculator (online tool)  

Help please!!!!!!!!!! Need ASAP!! Thank you!

Maria can stuff envelopes twice as fast as her friend James. Together they can stuff 6750 envelopes in 4.5 hours. How long would it take each of them working alone? Which of the following equations could be used to solve this problem?

Answers

I thinks it's the last one

hope this helps

Answer:

B. 4.5/t + 4.5/(2t) = 1

Step-by-step explanation:

Work = rate*timeMaria's rate = 6750/tJames's rate = 6750/2t

Their rate when working together:

6750/t + 6750/(2t) = 6750/4.5 ⇒ 1/t + 1/(2t) = 1/4.5 ⇒4.5/t + 4.5/(2t) = 1

Correct choice is B

1. You are rolling a pair of dice. What's the probability of getting different numbers on both dice?

Answers

Answer:

5/6

Step-by-step explanation:

Total outcomes:

6*6 = 36

Outcomes with same numbers on both dice:

6

Outcomes with different numbers on both dice:

36 - 6 = 30

Probability of different numbers on both dice:

30/36 = 5/6

Please!!!!! HELP!!!!!!!!!

Answers

for the first question
1. ( 5cm / 2km ) = ( xcm / 5km )
5*5 = 2x
25 = 2x
12,5cm = x
2. similar to (1) but having x as the km and 2 as the cm
5x = 2*2
x = 0,8 km
3. 192:2 to find the ratio of 1 cm to multiply by the length of the map
96*8.125=780cm
4. the are is (base*length)/2
use the same logic of (3) to find the real length of base
5*96=480cm
so for the the area (480*780)/2= 187200cm^2

please help me. Will mark u brainlyist.... Please don't put a randome answer if u don't know.

Answers

Answer:

105

Step-by-step explanation:

< 7 is also 105- they are alternate exterior angles

Product of ²/₇ with the reciprocal of ⁽⁻³⁾/₈ is​

Answers

Answer:

Step-by-step explanation:

Reciprocal of (-3)/8 = -8/3

[tex]\frac{2}{7}*\frac{-8}{3}=\frac{2*(-8)}{7*3}=\frac{-16}{21}[/tex]

#11-14 Answers are on the side

Answers

The difference between 7 and - 49 is one is positive one is negative and how they are graphed differently

a man diposited 80000 in a bank for 2 years at 10% per annum. after one year policy of bank change

Answers

Answer:

if you help me ill help you

Step-by-step explanation:

Carmen's father is 28 years older than her and 3 years ago he was 5 times her age. What are their ages?

Please help this is due today.

Answers

Answer:

[tex]b = 90[/tex]

[tex]c=80[/tex]

[tex]d =100[/tex]

Step-by-step explanation:

Given

See attachment

Required

Find b, c and d

First, we solve for b using:

[tex]b + 10 + b - 10 = 180[/tex] --- base angles of a parallelogram

Collect like terms

[tex]b + b =180+10-10[/tex]

[tex]2b = 180[/tex]

Solve for b

[tex]b = 180/2[/tex]

[tex]b = 90[/tex]

Then, we have:

[tex]d =b + 10[/tex]

[tex]c = b - 10[/tex] --- opposite angles

So, we have:

[tex]d =90 + 10[/tex]

[tex]d =100[/tex]

[tex]c = 90 - 10[/tex]

[tex]c=80[/tex]

What is the answer to this question?

Answers

Answer:

I dont know

Step-by-step explanation:

im trying to get brainly points lol

NOOOO LINKS FILES
At a contest, each diver was scored on a 1-10 scale for each of 8 divee. This data set shows the scores earned by one of the divers
83 8 6 8 834
Which value represents the median of the data set?
A.5
B.6
C.7
D.8

Answers

Answer:

6 is the median

Step-by-step explanation:

The median is the same as the number in the middle, and the number in the middle is 6.

multiplying and simplify radicals!

if u get it right I’ll give brainliest (show work pls!!!)

Answers

Answer: 8

Explanation: To multiply two square roots together, simply multiply the numbers inside the square roots together to get [tex]\sqrt{64}[/tex] which is 8.

Notice that when you multiply a square root times itself, the radical disappears, and you're left with the number inside the original square root.

Examine the figure of two parallel lines cut by a transversal.



What is the value of x?

Answers

Answer:

x=17

Step-by-step explanation:

The angles present are Alternative interior angles. That means that they are congruent. Meaning 4x+7 = 75. To solve for 7, you subtract 7 from both sides. That leaves you with 4x=68. Then you divide both sides with 4. Then you get x=17.

Hope this helps!

BTS!!

Answer:

x = 17

Step-by-step explanation:

75° and (4x + 7)° are alternate interior angles.

If two lines are cut by a transversal, then the alternate interior angles are congruent.

75 = 4x + 7

=> 4x = 68

=> x = 17

what is the answer for is I need help please. 4/5 - 1/4

Answers

Answer:

11/ 20  

Step-by-step explanation:

it cannot be reduced any further

Answer: 11/20 or in decimal 0.55

Step-by-step explanation:

Find the missing side of each right triangle (((((Pythagorean’s Theorem))))))))

Answers

Answer:

3

Step-by-step explanation:

36-27 = 9

[tex]\sqrt{9} = 3[/tex]

Other Questions
Anyone else keep seeing this person giving links? If u do, report them because they are scamming I need help please!! Wht might happen if a nation's population grows too slowly?A) There may be a strain on the country's infrastructure.B) There may not be enough workers to sustain economic growth.C) There may be an increased demand for consumer goods.D) There may not be enough agricultural production to meet demand. MAX POINTS PLEASE HELppart a. What are the values of x and y? If your answer is not a whole number, write it as a decimal and round to one decimal place if necessary. part b:Here is a triangular prism. What is the volume of the prism, in cubic centimeters? cubic centimetersWhat is the surface area of the prism, in square centimeters? cubic centimeters i need help with this pleasee Help Me Please!!!!!!!! Al contrario. T unca quieres lo que te quieren dar. Responde segn los modelos usando el pronombre demonstrativo correcto.Modelo: Quieres este libro?--No, no quiero se.1. Quieres estas fotos? ______________________2. Quieres esta pluma? ______________________3. Quieres este carro?_______________________4. Quieres estos sandwiches?_________________Modelo: Deseas ese traje?--No, ya tengo ste.1. Deseas esos cepillos? ____________________2. Deseas esas faldas? _____________________3. Deseas esa camisa? _____________________4. Deseas ese sombrero? ___________________Modelo: Te gustan esos libros?--S, pero me gustan ms aqullos.1. Te gusta ese restaurante? _________________2. Te gustan esas tiendas? __________________3. Te gustan esos zapatos? __________________4. Te gusta esa cancin? ___________________ 4. Using Source 2, why was the United States concerned about the potential for conflict?A. The United States no longer wanted to trade with other countries.B. The Louisiana Purchase caused invasions by other countries.C. Great Britain decided to sell their territorial claims to the United States.DThe United States and its territories were in close proximity to other territorial claims. Which of the following could you have seen if you had lived in the United States in the 1920s?soldiers marching off to the trenches in the Great Warengineers boarding ships to go build the Panama Canalflappers listening to jazz and doing the Charlestonpeople standing in long lines at telegraph offices I literally do not understand this at all. PLEASE HELP ASAP The lengths of a certain species of beetles are normally distributed with a mean of 1.9 centimeters and a standard deviation of 0.2 centimeters.What is the z-score of a beetle of this species with a length of 2.38 centimeters?Enter your answer in the box.Enter your answer, rounded to the nearest tenth, in the box. I NEED HELP PLSSS HELP SHOW WORK IF YOU KNOW An aqueous solution has a hydroxide-ion concentration of 1.0x10^-3M. What is the pH of the solution?a.11b.3c.-3d.7 3.COMPARE AND CONTRAST: Harriet Tubman: Conductor on the Underground Rallroad and "The People Could Fly" are about similar topics but indifferent genres. The first is a historical account of slavery in American history. The second is a fictional portrayal of the same topic or theme.How did Virginia Hamilton use historical facts in "The People Could Fly"? What changes does she make and what are the effects? Remember tosupport your analysis with evidence from the texts. Study the function below and then answer the questions that follow. Equation What is the domain of f(x)? What is the range of f(x)? Find the area of this circle.Use 3.14 to approximateA = ar220 ft List three reasons behind the fall of Delhi sultanate How does biomagnification put a top predator at a disadvantage?* I'll give you brainiest if there RIGHT and you get theme ALL Question 4 (1 point) In chapter 10, the word stupor in paragraph 1 means -Question 4 options:diseasedintoxicatedtrancetorporQuestion 5 (1 point) From Johnny's reaction to Dally's news about beating the Socs, the reader can conclude that Johnny thinks -Question 5 options:fighting is greatfighting solves problemsfighting is not goodfighting will only cause people to be arrestedQuestion 6 (1 point) How does Ponyboy feel about fights?Question 6 options:He will fight anytime, but he doesn't like them.He thinks it's a good chance to show off his muscles.He thinks it's action. Like a drag race or a dance or something.He likes stomping the other guy good.Question 7 (1 point) The only rule in the rumble is to use weapons.Question 7 options: True FalseQuestion 8 (1 point) What does Johnny mean when he says to Pony Boy, "Stay gold?"Question 8 options:Stay literally made of gold metalSave your money and accrue an investmentLive your lifeStay innocentQuestion 9 (1 point) What does Johnny leave Ponyboy?Question 9 options:His copy of Gone with the windHis knifeHis favorite bicycleHis book of Robert Frost poemsQuestion 10 (1 point) Dally runs out like the devil was after him when he finds out Johnny is dead. According to Pony, why is Dally having so much trouble handling Johnnys death?Question 10 options:Johnny said a lot of nice things about Dally and, while they didn't know each other well, Dally thought Johnny was pretty cool.Johnny was Dally's cousin and they were very close.Johnny was the only one he truly connected with and the only thing Dally loved; they were best friends.Dally is very emotional and actively gets upset about most things ASAPPPP18. The steps used to solve the equation 2x + 8 = 20 for x are shown below.2x + 8 = 20Step I: 2x = 12Step II: x = 6Which property makes Step I true?A. Division property of equalityB. Reflexive property of equalityC. Subtraction property of equalityD. Symmetric property of equality How quickly did Germany advance in the beginning of the Second World War