Prove that:

( sec 4A - 1 ) / ( sec 2A - 1 )

=

tan 4A . cot A

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Answers

Answer 1
GangbbsnnanMmajajajnqj
Prove That: ( Sec 4A - 1 ) / ( Sec 2A - 1 ) =tan 4A . Cot APls Help Pls Help Pls Help Pls Help Pls Help
Answer 2

Answer:

sec 1A = tan 2A

Step-by-step explanation:

BABAOEY


Related Questions

PLEASE HELP ME WITH THIS PROBLEM!!!!!!!!!!

The following figures are not drawn to scale but AB and CD are straight lines. Find x.

Answers

Answer: x = 30

Step-by-step explanation:

Since AB and CD are straight lines, vertical angles formed by them are congruent. Angle DOB is equal to angle AOC which is equal to 2x. Since you know that a straight angle is equal to 180 degrees, you can say :

2x + 90 + x = 180

3x + 90 = 180

3x = 90

x=30

Hope this helped :)

HELP HELP HELP
A house painting company charges $350 plus $15 per hour. Another company charges $275 plus $20 per hour. Write an equation that represents when both companies will cost the same amount. How long will the job be when both companies charge the same amount? How much will they charge?


Question 1: Write an equation.


Question 2: How long will the job be when both companies will cost the same amount?


Question 3: How much will they charge?

Answers

Answer:

BelowI hope it helps ♥

Step-by-step explanation:

1.  Equation representing when both companies will cost the same amount :

[tex]350 + 15x = 275 + 20x[/tex]

2. Let x equal the number of hours a job takes , then the first house painting company will charge 350+15x , the second house painting will charge 275 +20x. If the two companies charge the same amount , we will have;  

[tex]350 +15x = 275+20x\\\\350 - 275 = 20x - 15x\\\\75 = 5x\\\\\frac{75}{5} = \frac{5x}{5} \\\\15 = x\\\\x = 15\:hours[/tex]

3. For a job that takes 15 hours , the first company will cost ;

[tex]350 + 15(15) = 575[/tex]

For a job that takes 15 hours , the second company will cost ;

[tex]275+20x\\\\275+20(15)\\\\275 +300\\\\=575[/tex]

What’s the answer pls answer fast

Answers

Because you know there are 209 total seats, if there were 181 economy seats, there would be 28 first class seats.
181-28= 153
So 181 would be your answer.

I need help solving these problems.

Answers

I can’t see the picture very well

Two siblings Edwin and Rhea are both going skiing but choose different payment plans. Edwin's plan charges $45 for rentals and $5.25 per lift up the mountain. Rhea's plan was a bundle where her entire day cost $108. Set up an inequality that models the number of trips, n, up the mountain for which Edwin will pay more than Rhea. Solve the inequality. Also, what is the greatest amount of trips that Edwin can take up the mountain and still pay less than Rhea? Explain how you arrived at your answer.

Answers

Answer:

n>12

Step-by-step explanation

45+5.25n>108

-45 -45

5.25n > 63

then divide both sides by 5.25

n>12

which expression can be used to solve 3/5 divided by 7/10?

Answers

Answer:

C

Step-by-step explanation:

Keep Change Flip

Keep the first; change divided by multiply; then flip the last

You pick a ceratin amiunt of

Answers

Answer:

Okay so if your current scores are 93, 97, 89 and 81, You would have to score at least a 90. Even if you scored a 100%, the highest you would be able to make is a 92 average.

Step-by-step explanation:

Here's the thing about average, all you do is take all of the numbers, add them up, then divide them by the number of numbers there are.

For example, 93 + 97 + 89 + 81 = 360. There are 4 numbers so you would take 360 and divide it by 4 which gets you 90. 90 is your average.

To figure out the highest score you are able to get, take the highest score you can possibly score (100) and add it to the mix. 93 + 97 + 89 + 81 + 100 = 460. Now, there are 5 numbers. So you take 460 and divide it by 5 which will get you 92.

Hope I helped.

Select the correct answer.
Which equation represents the vertical line passing through (7,-3)?
A.
x = -3
B.
y = -3
C.
x = 7
D.
y = 7

Answers

Answer:

C. [tex]x=7[/tex]

Step-by-step explanation:

So we know that a vertical line is represented by [tex]x=[/tex] so we can already rule out two of the options. We also know that since the line runs vertically, all points will start with the same [tex]x[/tex] coordinate. This means that the correct answer is [tex]x=7[/tex]

Answer:

the answer is c x=7

Step-by-step explanation:

This type of triangle always has two congruent legs and two congruent
base angles. *

Answers

Answer:

Isosceles is correct........

Answer:

isosceles triangle

Step-by-step explanation:

Dived 41.04 by 1.6.

Answers

Answer:

25.65

Step-by-step explanation:

Answer: 25.65

No explanation lol

PLEASE HELP I WILL MARK

Answers

Answer:

2. 5

3. 2 dollars a peice

that is all i know sorry

Step-by-step explanation:

hope it heps you

Answer(s):

5 miles per hour

2 dollars per battery

6 pages in a minute

10 miles per gallon

2 inches per hour

Step-by-step explanation:

30/6=5

24/12=2

40/8=6

60/6=10

16/8=2

9
2 points

Item 9 is unpinned. Click to pin.

Fill in the blanks by creating the line perpendicular to
y
=
1
3
x

3
y=
3
1

x−3 that goes through (-1, -4) in slope intercept form.

FOR YOUR ANSWER, ONLY TYPE NUMBERS.
y =
Question Blank

x -
Question Blank

Answers

Answer: uhh

Step-by-step explanation:

I really don’t know how to do it.

what is
5y+3=4y+8=146

Answers

Answer: y=15

Step-by-step explanation:

Solution for (5y+3)+(4y+8)=146 equation:

Simplifying

(5y + 3) + (4y + 8) = 146

Reorder the terms:

(3 + 5y) + (4y + 8) = 146

Remove parenthesis around (3 + 5y)

3 + 5y + (4y + 8) = 146

Reorder the terms:

3 + 5y + (8 + 4y) = 146

Remove parenthesis around (8 + 4y)

3 + 5y + 8 + 4y = 146

Reorder the terms:

3 + 8 + 5y + 4y = 146

Combine like terms: 3 + 8 = 11

11 + 5y + 4y = 146

Combine like terms: 5y + 4y = 9y

11 + 9y = 146

Solving

11 + 9y = 146

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-11' to each side of the equation.

11 + -11 + 9y = 146 + -11

Combine like terms: 11 + -11 = 0

0 + 9y = 146 + -11

9y = 146 + -11

Combine like terms: 146 + -11 = 135

9y = 135

Divide each side by '9'.

y = 15

Please help and thank you for helping me out

Answers

Step-by-step explanation:

1. d=30

2. b=8

3. n=-7

5. v=17

6.x=-13

7. b=48

If Syn spends 15 minutes running, he burns 200 calories. How long will it take Syn to burn 150 calories?

Answers

Answer:

11 minutes and 15 seconds (11.25 minutes/ 11 and 1/4)

Step-by-step explanation:

create the corresponding ratio by dividing 200 by 15, 200 calories per 15 minutes. Which equates to 40 calories every three minutes which means 40/3 or 13 1/3 calories every minute. You can verify this by multiplying 15 and 40/3 to get 200 again.

The last step is to divide the calories burned by the corresponding ratio (40/3)

150/(40/3) = 11.25

and .25 or 1/4 of 60 seconds(in a minute) is 15 since 60/4 = 15.

Factor each of the following polynomials completely
1. 4x + 8
2.9x² - 25
3.x² + 4x + 4​

Answers

Answer:

ok:

Step-by-step explanation:

1. 4(x+2)

2. (3x + 5)(3x - 5)

3. [tex](x+2)^2[/tex]

Answer:

1. 4(x+2)

2. (3x+5)(3x-5)

3. (x+2)(x+2)

Step-by-step explanation:

If 247 players separated into 13 equal teams, how many players will be on each team?

Answers

247 divided by 13 = 19 so there will be 19 players on each team

4. Determine the value of x.

Answers

Answer:

x=16

Step-by-step explanation:

(16*3)-2

48-2

46

134+46=180

16 is the value of x

what is the y-intercept

Answers

Answer: D. (0, 1)

Step-by-step explanation: y - intercept is when x = 0. Anything to the power of 0 is 1. So, it would be D. (0, 1)

What is 80% as a fraction in reduced form?

Answers

Answer:

45

Step-by-step explanation:

Answer:

4/5

Step-by-step explanation:

421 × 18 ≈ ____ × ____ = ____

Answers

Answer:

Step-by-step explanation:

3473 8209ewu8wpwads =a d=waduwa sd a-= dwausS-d wa-sd was-d-aaa-d w=a dwa98-dhs;odwa s7dwa=w=da=da-dad-a w8ahspd-wasd wa-d 8-wasdwaf 0rgk9r8f

Answer:

18 x 421 = 7578

Step-by-step explanation:

421 x 18 = 7578

Think about the expression (x-8)(x+4)

Answers

Answer:

x*x +4*x-8*x -8*4

x^2+4x-8x-32

x^2-4x-32

in this picture lines AB and CD are parallel. Find the measures of the following angles. Explain your reasoning.

Answers

Answer/Step-by-step explanation:

1. <ABC and <BCD are alternate interior angles. Alternate interior angles are equal, therefore, since m<ABC = 38°, then m<BCD = 38°

2. m<ECF = m<BCD (corresponding angles)

m<ECF = 38° (substitution)

3. m<DCF + m<ECF = 180° (linear pair)

m<DCF + 38° = 180° (substitution)

m<DCF = 180° - 38° (Subtraction property of equality)

m<DCF = 142°

The measure of the following angles are as follows;

∠BCD = 38°

∠ECF = 38°

∠DCF = 142°

Angles form when a transversal cut parallel lines

When a transversal line cut across parallel lines, the angles form include corresponding angles, alternate angles etc.

Therefore,

∠BCD = 38 degrees(alternate angles)

∠ECF = 38 degrees(corresponding angles)

∠DCF = 180 - 38 = 142 degrees(angles on a straight line)

learn more on angles here: https://brainly.com/question/18346402

#SPJ2

Which don’t lie??????????!!!!!

Answers

Answer:

I think its -12. If you apply y2-y1/ x2-x1 to the equation.

Answer:

i belive that it might be c

Step-by-step explanation:

which is -12

Solve for b: 3ab = -7

Answers

Since we are solving for b, you need to get it by itself. So you would divide both sides by 3a. That would leave b= -7/3a.

Hope this helps!!

Which explains how you round 212.809 to the nearest hundredth?

Answers

Answer:

212.81

Step-by-step explanation:

The Hundredth is the Underlined number:

212.8 0 9. 0 is in the Hundreths place so round either up or down. In this case we round up sence 9 is bigger then 5. So you would have a new number of 212.81. Hope This Helps! Rate Brainiest!

-Aslina

The total cost, y, for Leah and x friends to go to an amusement park can be modeled by a linear function. The amusement park charges an entrance fee of $45.25 per person and a parking fee of $10 per car. Leah's car has seating for a maximum of 6 people.

What is the domain of the function for this situation?

Answers

45x6=270.270 is the total for the friends.However instead you have to do 45x7=315.Because its Leahs friends and LEAH.So now the car.315+10=325.So your answer is 325

Whats is the answer of 1x3x4x6+1

Answers

Answer:

73

Step-by-step explanation:

Answer:73

Step-by-step explanation:

what is x and y equal to if x divided by y = 6

Answers

Answer:

x=12 a and y=2

Step-by-step explanation:

When rounded to the hundreds place, which of the numbers below round to 456,700?
A) 456,605
B) 456,739
C) 456,798
D) 456,698
E) 45,673

Answers

Answer:

If you can only pick one option I'd choose D.)

Step-by-step explanation:

Option D is only two numbers away from 456,700

The second closest number would be option B.)

Answer:

[tex]D) . \: 456,698 = 456,700 \: to \: the \: hundreds \: place.[/tex]

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