pls help... Prove (1+tanx)/(1+cotx)=tanx by algebra

Answers

Answer 1

[tex]\text{L.H.S}\\\\=\dfrac{1+\tan x}{ 1+ \cot x}\\\\\\=\dfrac{1+ \tan x}{ 1+ \tfrac 1{\tan x}}\\\\\\=\dfrac{1+\tan x}{\tfrac{\tan x+1}{\tan x}}\\\\\\=(1+\tan x) \times \dfrac{\tan x}{1+ \tan x}\\\\=\tan x\\\\=\text{R.H.S}\\\\\text{Proved.}[/tex]


Related Questions

What is the equation of the horizontal line through
(-7,-3)?

Answers


A horizontal line has a slope of
0
. We can use the point-slope form for a linear equation since we know the slope and the point (-7,-3)

Using y-y1=m(x-x1)
m=0
y1=-7
x1=-3

y-(-7)=0(x-(-3))
y+7=0(x+3)
y+7=0
y=0-7
y=-7

The graph of y = f(x) is shown on the grid.
Both graph M and N are translations of the graph y = f(x).
a) Write down the equation of graph M.
b) Write down the equation of graph N.

Answers

Both M(x) and N(x) are translations of f(x), the equations are:

N(x) = f(x + 4).

M(x) = f(x) + 4.

How to find the equations for the translations?

Remember that for a function f(x), a vertical translation of N units is written as:

g(x) = f(x) + N

If N > 0, the translation is upwards.If N < 0, the translation is downwards.

And for a function f(x), a horizontal translation of N units is written as:

g(x) = f(x + N).

If N > 0, the translation is to the left.If N < 0, the translation is to the right.

First, we can see that N is a translation of 4 units to the left, then:

N(x) = f(x + 4).

And M is a translation upwards of 4 units, then:

M(x) = f(x) + 4.

If you want to learn more about translations:

https://brainly.com/question/24850937

#SPJ1

1. Use rectangle ABDC below for parts a through d.
15 cm
B
8 cm
C
(a) Calculate the length of each side of the dilated image using a scale factor of 3. Show your work!
(2 pts)
A'B' = |
B'D' =
I
(b) Does the scale factor of 3 create an enlargement or reduction? (1 pt)
(c) Calculate the length of each side of the dilated image using a scale factor of Show your workl
(2 pts)
A'B' =
B'D' =
(d) Does the scale factor of create an enlargement or reduction? (1 pt)

Answers

Answer:

see the attachment photo!

A catapult hurls a pumpkin from a height of 32 feet at an initial velocity of 96 feet per second. the function h(t)=-16t^2+96t+32 represents the heights of the pumpkin h(t) in terms of time t. what is the max height the pumpkins will reach and what time will it reach that height?

Answers

The maximum height of the  pumpkin is 3 feet

We have given that,

A catapult hurls a pumpkin from a height of 32 feet at an initial velocity of 96 feet per second.

The function h(t)=-16t^2+96t+32 represents the heights of the pumpkin h(t) in terms of time t.

We have to determine the maximum height.

What is the maxima?

At the point of maxima f'(x)=0

first, find the maxima

Therefore differentiate the given function with respect to t we get,

[tex]h'(t)=-32t+96[/tex]

h'(t)=0

Then we get,

[tex]0=-32t+96\\-32t=-96\\t=\frac{-96}{-32} \\t=3[/tex]

Therefore the maximum height of the pumpkin is 3 feet.

To learn more about the maxima visit:

https://brainly.com/question/13995084

#SPJ1

4x = 20
How can I solve it quickly?
I don’t want only the results.

Answers

Answer:

5

Step-by-step explanation:

You need to do 4 divided by 4 on 1 side and 20 divided by 4 on the other side

4÷4= 1 so we are left with x

20÷4= 5 so we are left with 5

Therefore x=5

Hi student, let me help you out!

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We are asked to solve the equation 4x=20.

[tex]\triangle~\fbox{\bf{KEY:}}[/tex]

Remember, we need to get x all by itself.

Is x all by itself? No, there's a 4 multiplied by it.

So, we do the opposite operation.

The opposite of multiplication is..?

Division.

Thus, we divide both sides by 4.

x=5

[tex]\ddot\bigstar[/tex] Remember this...

[tex]\fbox{When\;solving\;equations\;,\;our\;goal\;is\;to\;find\;the\;value\;of\;the\;variable,\;which\;in\;this\;case\;was\;x}[/tex]

Hope it helps you out! :D

Ask in comments if any queries arise.

~Just a smiley person helping fellow students :)

Which of the following equations will produce the graph shown below?
+10
10-9-8-7-6-5-4-3-2-1-1 2 3 4 5 6 7 8 9 10
O A. 20x²-20y² = 400
OB.
B. 6x² + 6y² = 144
လ -
7 PTT || | |||||||||
ܚ ܐ ܕܬ ܘ ܟ ܗ ܗ ܙܪ ܣ ܣ
-3
-5
-7
-8
-9
-10

Answers

The equation that produces the circle in the given graph is; x² + y² = 16. The correct answer is option B.

The complete graph is attached with the answer below.

How to interpret the equation of a Circle?

A circle is a two-dimensional geometry on the plane having a centre point and the circular line is drawn equidistant from the centre point.

The general form of the equation of a circle is;

(x - h)² + (y - k)² = r²

where;

h, k are coordinates of the circle centre r is the radius

From the graph, we can see that the coordinates of the centre are; (0, 0).

Also, the radius is;

r = √(4² - 0²)

r = √16

Thus, our equation of the circle in the graph is;

(x - 0)² + (y - 0)² = (√16)²

x² + y² = 16

Therefore the equation that produces the circle in the given graph is; x² + y² = 16. The correct answer is option B.

Read more about Circle Equation at;

brainly.com/question/1559324

#SPJ1

What is the surface area of this shape(step by step if possible)

Answers

Answer:

Step-by-step explanation:

((8 x 10) x 3) + ((9 x 8)/2) x2 = (80 x 3) + (72/2) x 2
                                             = 240 + (36 x 2)
                                             = 240 + 72
                                             = 312

7x+16=8x+15 solve for x and y

Answers

Answer:

x = 1

Step-by-step explanation:

7x + 16 = 8x + 15

Step 1 : Subtract 15 on both sides

7x + 16 - 15 = 8x

7x + 1 = 8x

Step 2 : Subtract 7x on both sides

1 = 8x - 7x

1 = 1x

x = 1

(-11x^2 + 1.4x - 3) + (4x^2 - 2.7x + 8)

Answers

Answer :

[tex]\underline{\boxed{\sf{-7x^2 - \frac{13}{10} x +5}}}[/tex]

Solution :-

[tex]\sf{(-11x^2 + 1.4x - 3) + (4x^2 - 2.7x + 8)}[/tex]

Remove the parentheses:

[tex]\sf{-11x^2 + 1.4x - 3 + 4x^2 - 2.7x + 8}[/tex]

Convert decimal to fraction:

[tex]\sf{-11x^2 + \frac{14}{10} x - 3 + 4x^2 - \frac{27}{10} x + 8}[/tex]

Reduce fraction to the lowest term by canceling the greatest common factor:

[tex]\sf{-11x^2 + \frac{7}{5} x - 3 + 4x^2 - \frac{27}{10}x + 8}[/tex]

Combine like terms:

[tex]\sf{-7x^2 - \frac{13}{10} x +5}[/tex]

Which are rational numbers?
Check all that are true. 3/10 3/1 0/3 -191/32 3/456

Check all that are true

NEED ANSWER ASAPPPPP



Answers

3/0 and -191/32

lmk if this is wrong, I might be.

a company makes these biscuits at a cost of $1.35 per packet. these biscuits are sold for $1.89 per packet. calculate the percentage profit the company makes on each packet

Answers

Answer:

They Make 50 cents profit a pack

Step-by-step explanation:

1.89-1.35

If f(x)=√4x+9+2, which inequality can be used to find the domain of f(x)?
O √4x 20
O4x+920
4x20
√4x+9+220

Answers

Answer:

[-11/4, ∞)

Step-by-step explanation:

Given :

y = √(4x + 9 + 2)

Simplifying :

y = √(4x + 11)

Now, the term in the bracket has to be greater than or equal to 0 to be real.

Hence,

⇒ 4x + 11 ≥ 0

⇒ 4x ≥ -11

⇒ x ≥ -11/4 [Lower limit]

Infinity will be the upper limit as the numbers increase indefinitely.

The domain will be :

[-11/4, ∞)

25 is added to the product of a number and 2

Answers

Answer:

2x + 25

Step-by-step explanation:

Let that number be x.

Step 1 : Multiply x and 2.

x * 2 = 2x

Step 2 : Add 25 and 2x.

2x + 25

Hence,

25 is added to the product of a number and 2 is 2x + 25.

A set of 15 students took a math test. The test was out of 50 points and the scores were as followed: 23, 28, 29, 30, 30, 32, 33, 36, 36, 40, 41, 43, 45, 46, 48 1.
Find the Mean test score of the test
2. Find the Standard Deviation of the test 3. Using a Normal Distribution, what is the probability a student scores higher *than a 35 on the test
4. Using a Normal Distribution, what is the probability a student scores between a 30 and 40 on the test?​

Answers

Answer:

1. 33.6

Step-by-step explanation:

1. Mean = total score/number of tests

         = (23+28+29+30+30+32+33+36+36+40+41+43+45+46+48)/15

         =33.6

I don't know any of the others, but I hope that this will be helpful :)

IM IN NEED OF HELP ASAP!!

Answers

Answer:

B. [tex]\frac{14}{625}[/tex]

Step-by-step explanation:

Total paper in the hat:

2 blue + 6 red + 10 yellow + 7 purple = 25 total pieces of paper

P(AB) = 7 / 25 x 2 / 25

A is the probability of pulling a purple paper

B is the probability of pulling a blue paper

Answer:

14/625

Step-by-step explanation:

probability = favorable outcomes/total number of outcomes

First find the probability of drawing a purple piece of paper.

There are 7 pieces of purple paper.

Add all the amounts of colored paper together to get the total number of outcomes.

2 + 6 + 10 + 7 = 25

The probability of drawing purple is 7/25

Now find the probability of drawing  blue. There are 2 blue pieces of paper. Since he replaces the purple paper the total stays at 25.

The probability of drawing blue is 2/25

This is a compound probability problem, so multiply the two probabilities together.

7/25 x 2/25

14/625

13. a) Write 2 solutions of the equation 2x - 3y = 6
b) Write the equations two lines passing through the point (-3, 2)​

Answers

Answer:

y=4/3x+6

Step-by-step explanation:

Please help! Giving brainliest!

Answers

Answer:

P

Step-by-step explanation:

The middle is the middle of the angle ...point P

1 over 3b = 4 over 5 . Which of the following equals b in this equation? (4 points)

2 2 over 5
1 1 over 8
2 over 5
1 over 4

Answers

Answer:

none of the answers listed are equivalent to b (22/5, 11/8, 2/5, 1/4)

Step-by-step explanation:

[tex]\frac{1}{3b} = \frac{4}{5}[/tex]

to simplify, cross multiply

(1 · 5  =  3b · 4)

(5 = 12b)

divide both sides by 12 to isolate b,

[tex]\frac{5}{12} =\frac{12b}{12}[/tex]

[tex]\frac{5}{12} = b[/tex]

None of the answers listed are equivalent to 5/12

[tex]\frac{5}{12}[/tex] [tex]\neq[/tex][tex]\frac{22}{5}[/tex]

[tex]\frac{5}{12} \neq[/tex][tex]\frac{11}{8}[/tex]

[tex]\frac{5}{12} \neq[/tex][tex]\frac{2}{5}[/tex]

[tex]\frac{5}{12} \neq[/tex][tex]\frac{1}{4}[/tex]

Estimate the product of 4.87 × 19.39 using compatible numbers.

Answers

Answer:

95

Step-by-step explanation:

you will approximate 4.87 which will be 5, the same as 19.39 which will be 19. Then you will multiply and your answer is 95

HELP
Select the correct answer from each drop-down menu.
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
12 cm
The three-dimensional shape that this net represents is a
The surface area of the figure is
12 cm
12 cm
12 cm
square centimeters.
Reset
Next

Answers

The net represents a cube.

The net shows a cube with a side length of 12 cm, meaning its surface area is [tex]6(12)^{2}=\boxed{864 \text{ cm}^{3}}[/tex]

Answer:

cube864 cm²

Step-by-step explanation:

The Platonic solid with six (6) square faces is the cube. Its surface area is the sum of the areas of the square faces. Each of those is the square of its edge length.

__

The 3-dimensional shape represented by the net is a cube.

The area of the cube is ...

  6 × (12 cm)² = 6 × (144 cm²) = 864 cm²

Solve triangle abc round your answers to the nearest hundredth if necessary.

Answers

Step-by-step explanation:

where are the pictures ? or diagram?

answer the question please ​

Answers

Answer:

  (d)  108°

Step-by-step explanation:

An inscribed angle is half the measure of the arc it subtends. Conversely, the arc is twice the measure of the inscribed angle it subtends.

__

using the relation

We can define the vertex of the marked angle as point Q. Arc XY is twice the measure of inscribed angle XQY:

  arc XY = 2(54°) = 108°

URGENT



A watch keeps exact time, but it has only an hour hand. When the hour is is of the distance between the 4 and the 5, the correct time is???​

Answers

Answer:

It will be 4 30

Step-by-step explanation:

Mark me as a brainliest.

Her house is at (-4, 10). Her school is at (-4, 3). The community center is at (2, 3) The grocery store is at (-4, -6) Part A: Use absolute values to calculate the distance in units from Nina's house to her school. Show your work. (4 points) Part B: Is the total distance from Nina's house to the school to the grocery store greater than the total distance from Nina's house to the school to the community center? Justify your answer. (6 points)

Answers

For part A, we will see that the distance is 7 units. For part B, the distance from Nina's house to the school to the grocery store is larger.

How to find the distances?

Remember that the distance between two points (a, b) and (c, d) is:

[tex]D = \sqrt{(a - c)^2 + (b - d)^2}[/tex]

A) Her house is at (-4, 10), and her school is at (-4, 3), so the distance is:

[tex]D = \sqrt{(-4 - (-4))^2 + (10 - 3)^2} = \sqrt{7^2} = 7[/tex]

The distance is 7 units.

B) In the first case, the distance between the school and the grocery store is:

[tex]D' = \sqrt{(-4 - (-4))^2 + (3 - (-6))^2} = 9[/tex]

So the total distance is 9 + 7 = 16

And the distance between the school and the community center is:

[tex]D'' = \sqrt{(-4 - 2)^2 + (3 - 3)^2} = 6[/tex]

So the total distance is 6 + 7 = 13

So we can see that the total distance from Nina's house, to the school, to the grocery store is larger than the other.

If you want to learn more about distance:

https://brainly.com/question/23848540

#SPJ1

PLS HELP FAST
Points X and Y lie on (circle)P so that PX = 5 meters and m∠XPY = 90. Find the length of XY to the nearest hundredth.

Answers

Step-by-step explanation:

P means the center of the circle.

any point on the circle has therefore a constant distance from the center : the radius r.

r = 5 m

what we need to find is the length of the circle arc between the 2 points that represents 90° of the overall circle (360°).

90/360 = 1/4

so, we are looking for 1/4 of the overall circle circumference :

2×pi×r × 1/4 = 2×pi×5 × 1/4 = pi×10/4 = pi×5/2 =

= 7.853981634... m ≈ 7.85 m

help me thank u if u do

Answers

Answer:

Choice 4^th

Step-by-step explanation:

Given:

1/2+3/4+7/16 = __

To Solve:

Addition equation by finding a common multiple.

Solution:

Let the blank _ be x.

Then,

1/2+3/4+7/16 = x

Flip this equation:

x = 1/2+3/4+7/16

Now solve for x.

x = (1/2+3/4)+7/16 x = 5/4+7/16x = 27/16

Hence,

1/2+3/4+7/16 = 27/16

4^th Choice is accurate.

The function f(t) represents the cost to connect to the Internet at an online gaming store. It is a function of t, the time
in minutes spent on the Internet.
$0
0 f(t) = $5
30 < 1 ≤ 90
$10
> 90
Which statement is true about the Internet connection cost?
It costs $5 per hour to connect to the Internet at the gaming store.
The first half hour is free, and then it costs $5 per minute to connect to the Internet.
It costs $10 for each 90 minutes spent connected to the Internet at the gaming store.
Any amount of time over an hour and a half would cost $10.

Answers

The true statement about the Internet connection cost is D. Any amount of time over an hour and a half would cost $10.

How to explain the cost?

In this situation, the function is f (t), when t is a value between 0 and 30. The cost is $0 for the first 30 minutes

When t is a value between 30 and 90, the cost is US$ 5 if the connection takes between 30 and 90 minutes.

Here, the true statement about the Internet connection cost is D. Any amount of time over an hour and a half would cost $10.

Learn more about cost on:

https://brainly.com/question/13862342

#SPJ1

Rewrite using a single positive exponent. 3-6 -5​

Answers

Answer:

[tex]1 \div {3}^{( 30)} [/tex]

Step-by-step explanation:

There are exponent rules I posted above that are being used here.

We have (3^-6)^-5

Since we have a power times a power, we multiply 6 and 5 to get -30. Look at the first example in the photo.

So, we're left with 3^-30.

If you look at the photo, there's a rule for negative exponents.

Take the inverse of the base number, so 3 in this case:

1 / 3

and then make the exponent positive after taking the inverse.

So, we should get 1 / 3^30

Hope this helps!

Which inequality does the graph
represent?
y

−2 O 2 x
2

−2

Answers

Answer:

Step-by-step explanation:

I need help understanding this question

Answers

Answer: what question i don't see it but you can try reading it again and writing it down

Other Questions
A typewriter types 750 words per hour. If she works for 8 hours a day, find the number of words she type in a day. Why were Russian interests threatened by the Berlin-Baghdad railway? the railway would increase German power in Russia's sphere of influence the railway would restrict Russian access to Morocco all of these answers are correctthe railway would restrict Russian access to the Mediterranean Sometimes you need to use both -er and more with the same adjective.True or false Which instrument starts the theme in the opening fanfare "Sunrise" from Richard Strauss' Also Sprach Zarathustra, Op. 30? Alto voice Trumpet Tuba Violin The statement "child marriages are wrong" means that the speaker is saying "child marriages should be stopped". this is an example of: which one of the following characteristics shows discontinuous variation in humans?A. HeightB. Length of footC. WeightD. Tongue rolling 27 As shown in the diagram below, secants PWR and PTS are drawn to circle O from external point P.12/O.WTP5If m/RPS = 35and mRS = 121, determine and state mWT. Both Canada and the United States produce lumber and footballs with constant opportunity costs. The United States can produce either 10 tons of lumber and no footballs, or 1,000 footballs and no lumber, or any combination in between. Canada can produce either 8 tons of lumber and no footballs, or 400 footballs and no lumber, or any combination in between. a. Draw the U.S. and Canadian production possibility frontiers in the accompanying graphs, with footballs on the horizontal axis and lumber on the vertical axis. b. In autarky, if the United States wants to consume 500 footballs, how much lumber can it consume Which of the following desribes a displacement vs. time graph that looks likethis?TimeA. constant non-zero accelerationB. increasing velocityC. constant velocityD. decreasing acceleration How did military leaders prevent democracy in brazil?. Buying rental property is an investment option that carries a higher risk than some other options. However, the returns can be good. Assume you have purchased a single-family home that you intend to rent for $850 per month. You will have the following expenses:Monthly mortgage $390Monthly insurance $70Semi annual property taxes $380Repairs (yearly estimate) $500Monthly lawn care or snow removal $125The total yearly expenses for the rental property will be_____.00. What is an antonym for injection?a. electionb. insurrectionc. ejectiond. reflection A hydrogen atom initially in its ground state absorbs a photon with a wavelength of 97.25 nm. To which energy level is it excited Compare the words crowd and proud. how are they alike? how are they different? The pesticide DDT was found to be generally ---------to people, animals, and the environment.harmfulbeneficial 25) which code is used for a level 2 subsequent hospital visit by a consulting provider?a. 99291b. 99213c.99253d. 99232 1-A mi madre leenter answer(preocupar) mis caprichos.2-A algunos estudiantes lesenter answer(interesar) las rebajas.3- A nosotros nosenter answer (aburrir) hacer cola. It takes Kenesha 45 minutes to prepare 20 greeting cards. It takes Paula 30 minutes to prepare the same number of cards. Working together at this rate, how long will it take them to prepare the cards? how does oppenheimer describe people's reactions to certain advancements in physical scienceA. unsupportive of his countryB. uncertain about the futureC. underwhelmed by the bomb's powerD. excited for future discoveries. Ali had previously calculated the Economic Order Quantity required to efficiently control costs at his company. His calculations proved accurate in the short term. However, after a certain point, it was found that his calculations differed from the actual costs. What could have happened at this point to create a mismatch between Alis calculations and the actual expense?A. demand for the companys product changedB. the company had an excess of intermediate inventoryC. the storage capacity for output inventory was fullD. salary increases were put on hold