It’s PreCal I just need a method to solve it

Its PreCal I Just Need A Method To Solve It

Answers

Answer 1

Answer:

see explanation

Step-by-step explanation:

Using the identities

tanx = [tex]\frac{sinx}{cosx}[/tex] , cotx = [tex]\frac{cosx}{sinx}[/tex]

Consider the left side

[tex]\frac{tanx}{tanx+cotx}[/tex]

= [tex]\frac{\frac{sinx}{cosx} }{\frac{sinx}{cosx}+\frac{cosx}{sinx} }[/tex]

= [tex]\frac{\frac{sinx}{cosx} }{\frac{sin^2x+cos^2x}{cosxsinx} }[/tex]

= [tex]\frac{\frac{sinx}{cosx} }{\frac{1}{cosxsinx} }[/tex]

= [tex]\frac{sinx}{cosx}[/tex] × [tex]\frac{cosxsinx}{1}[/tex] ← cancel cosx on numerator/ denominator

= sin²x

= right side


Related Questions

A quantity with an initial value of 380 decays exponentially at a rate of 1% every 4 hours. What is the value of the quantity after 174 minutes,

Answers

Answer:

377.24

Step-by-step explanation:

Solve for X. 2y-4x=10

Answers

Answer:

y = 5 + 2x

Step-by-step explanation:

Simplifying

2y = 4x + 10

Reorder the terms:

2y = 10 + 4x

Solving

2y = 10 + 4x

Solving for variable 'y'.

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

Divide each side by '2'.

y = 5 + 2x

Simplifying

y = 5 + 2x

HELPP ITS MY LAST QUESTION AND IM TIMED

Answers

Answer:

the correct answer is A less than my good sir ( or ma'am )

Step-by-step explanation:

Are the following triangles similar or not similar?

Answers

No, 47 equals 47, 66 does not equal 67, hence not similar

Please help due in 5 minutes !

Answers

Answer:

Step-by-step explanation:pentagon

Hexagon

Heptagon

Octagon

Nonagon

Decagon

I’m sorry if this is wrong

What is the slope of the line containing (-3,5) and (6,-1)?
A. 1
B. -2/3
C. 2/3
D. -1

Answers

-1-5
6-(-3)
-6/9=-2/3
-2/3 is the slope
the answer is b.-2/3

x + 6= 2x − 11
.........

Answers

17 is your answer. the step by step is in the picture

The answer to your question is: x = 17

What expression is equivalent to 6(3x+4)?

Answers

Hey there!

“Which expression is equivalent to 6(3x + 4)

6(3x + 4)

6(3x) + 6(4)

6(3x) = 18x

6(4) = 24

= 18x + 24

Possible answer: 18x + 24 ☑️

Good luck on your assignment and enjoy your day!

~Amphitrite1049:)

What is the value of sin 43° to the nearest ten-thousandth?

Answers

Answer:

0.6819

Step-by-step explanation:

The value of sin 43° to the nearest ten-thousandth will be 0.682

Sine functionIn trigonometry, the sine function can be defined as the ratio of the length of the opposite side to that of the hypotenuse in a right-angled triangleThe sine function sin x is one of the basic functions encountered in trigonometry

How to solve this problem?

The steps are as follow:

First take calculator and press the sin function buttonAfter entering the sin function button enter the value 43After entering the value 43 press the equal to buttonAnd the answer will be shown on screen will be 0.681999...As in the question stated we have round off to the nearest ten-thousandth

So, the  value of sin 43° to the nearest ten-thousandth will be 0.682

Learn more about sine function here:

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at a local gym you can either pay $90 for a monthly pass then pay for dollars each time you go to the gym or you can pay $13 each time you go with no monthly pass fee if you're going to the gym 17 times in a month which option is better​

Answers

Answer:1st option

Step-by-step explanation:

Graph the relation. Is the relation a function? Why or why not?
{(-5, 6), (-2, 3), (3, 2), (6, 4)}

Yes; there is only one domain value for each range value.

Yes; there is only one range value for each domain value.

No; a domain value has two range values.

No; a range value has two domain values.

Answers

Answer:

Yes; there is only one range value for each domain value.

Step-by-step explanation:

For a relation to be a function, every input, x-value, needs to have a unique output, y-value. This means that one x-value cannot have multiple y-values. So, in a function x-values will never repeat. Since x-values do not repeat in this relation, it is a function.

Please solve this for me

9x+6+45=100

Answers

I hope this helps with your answer

Answer:

9x+6+45=100

Transposing (45) to RHS

= 9x+6=100-45

= 9x6=55

Now, transposing (6) to RHS

= 9x=55-6

= 9x=49

Now, transposing (9) to RHS

= x=49÷9

= x=5.44.....

Therefore, value of x=5.44..............

please help and thanks!

Answers

Answer:    D: 17.3

Step-by-step explanation:

I believe its D because the house and the ground is a 90 degree angle, and at 60 degree angle is a 20 foot ladder. alright then 90 plus 60 = 150 degrees.

then add the twenty foot ladder with each choice for the answer:

A: 20 + 6.1 = 26.1

B: 20 + 10.0 = 30

C: 20 + 14.1 = 34.1

D: 20 + 17.3 = 37.3

The answer would be D because it is the closer number to 150. Because it says " which is the closest height up the house the ladder reaches?" The answer is D the closest number. I HOPE THIS HELPS YOU! =D

Why doesn’t a skip with ad button pop up anymore

Answers

I still get a skip add button?

Answer:

That is because the specific ad is being paid

Step-by-step explanation:

And by the way some ads on yt do have the skip ad

The prob is that some are being paid for people to watch

There are 50 U.S states. seven twenty-fifths of the state share a land border with Canada or Mexio of those 2/7 share a border with mexio how many states share a border with Canada?????

Answers

thirteen states share a border w canada

There are 20 states that share the border with Canada.

What is subtraction?

Subtraction is a mathematical operation. Which is used to remove terms or objects in the expression.

Given:

There are 50 U.S. states.

Seven twenty-fifths of the state share a land border with Canada or Mexico.

That means,

7[tex]\frac{20}{5}[/tex]

= 7 x 4

= 28

a number of 28 states share the border with Canada or Mexico.

Of those 2/7 share a border with Mexico,

that means, the number of,

= 28 - 28 x 2/7

= 28 - (4 x 2)

= 28 - 8

= 20 states share the border with Mexico.

Therefore, the required number is 20.

To learn more about subtraction;

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find the difference of (6x^2+3x-5) and (4x^2-2x+3)

Answers

Answer:

ummm

Step-by-step explanation:

cz points

Taylor's cat runs 15 miles in 30 minutes. At this rate how far will her can run in 3 1/2 hours?

Answers

Answer:

105 miles

Step-by-step explanation:

15 miles in half an hour so 30 miles each hour

30 miles*3 hours=90 miles

90 miles+15miles= 105 miles in 3 1/2 hours

You have $500 in a savings account. How long will it take to double that
amount at an 8% annual interest rate?

Answers

Answer:

Step-by-step explanation:

The formula for compound annual interest is  A = P(1 + r)t  where  

A = Accumulated or final amount  (double $500 = $1000)  

P = Principal or original amount  ($500)  

r = Rate as a decimal (0.08)

t = Time in years  

1000 = 500(1 + 0.08)t

2 = 1.08t  

Take the logarithm of both sides.  I prefer the natural logarithm ln, but if you're more comfortable with base 10 logs they will work just as well  

ln(2) = ln(1.08t)  

ln(2) = t*ln(1.08)

t = ln(2)/ln(1.08)

t = 9.0065 years  

Check:  500*1.089.0065 = $1000

find the perimeter and area:

1. square with a side 2.4 m in length find the perimeter and area

2. rectangle with length (x+3) and width 7

3. although a circle does not have sides, it does have a perimeter. what is the term for the perimeter of a circle? ​

Answers

Answer:

1= Perimeter =9.6

Area = 5.76m^2

Answer:

find the perimeter and area:

1. square with a side 2.4 m in length find the perimeter and area

answer:

length [l]=2.4m

area of square==2.4²=5.76m²

perimeter of square=4l=4×2.4=9.6m

2. rectangle with length (x+3) and width 7

answer:

length [l]=x+3

Breadth [b]=7

perimeter of rectangle =2{l+b}=2(x+3+7)=2x+20

area of rectangle=l×b=(x+3)×7=7x+21

3. although a circle does not have sides, it does have a perimeter. what is the term for the perimeter of a circle.

answer:

the term for the perimeter of a circle=2πr (when radius is given ) and πd (when diameter Is given)

I need Help with this
Fabiola's special seasoning mix has three ingredients. The recipe uses 4 parts thyme, 3 parts parsley, and 1 part green onion. If she is making 24 tbsp. of the mix, how many tbsp. of parsley does she need?
3
5
15
9

Answers

Answer: 9

Step-by-step explanation: First, you find how many parts are needed. 4+3+1=8

So, we then divide 24 by 8 to find out what one part is. This is 3

As she needs 3 parts of parsley, we multiply 3 by 3 (each part) to get 9 tbsp.

Fabiola's special seasoning mix of 24 tbsp. needs 9 tbsp. of parsley.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, Fabiola's special seasoning mix has three ingredients. The recipe uses 4 parts thyme, 3 parts parsley, and 1 part green onion.

Let, 'x' be the ratio multiplier.

Therefore, 4x + 3x + x = 24.

8x = 24.

x = 3.

So, She needs 3×3 = 9 tbsp. of parsley.

learn more about numerical expressions here :

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Please help it's due today. Also if you don't know please don't answer.​

Answers

I believe it's x= 20, hopes it help!

Answer:

x=20

Step-by-step explanation:

4 5 x

( 3 ) = 3

20 x

3 = 3

x = 20

Please help! (i'll give the best answer brainliest)

Answers

Answer:

I think False umm...

i'm so so sorry if im rong

Step-by-step explanation:

This statement is in fact true.

Please help! Will mark brainliest

Answers

Answer:

Marylin has the highest score: 87.5%

Step-by-step explanation:

Alyssa score: 21/25 = 84%

Jerrod: 80%

Francis: 88%

Marylin: 7/8 = 87.5%

A scientist is testing a new antibiotic on some bacteria she discovers the the antibiotic kills half of the Bactria every hour if she starts with 42000 bacteria what equation can be used to predict the number of bacteria after x hours
a). y= 42000(2)^x
b). y=42000(1/2)^x
c). y=42000(1.5)^x
d). y=(42000/2)^x

Answers

D because if you add all the bacteria and then you subtract and multiply than divide you get B

Solve each inequality -6b + 2 < 56

Answers

Answer:

b > - 9

Step-by-step explanation:

i hope i did okay i try my best

24 is 3/4% of what number

Answers

24 is 3/4 of the number 32

Answer:

32

Step-by-step explanation:

Alright, so think of the "what number" as x in this case. (Or any number/symbol you choose.)

So our simple equation looks something like this:

[tex]24= x *\frac{3}{4}[/tex]

So, to find out what the "what number" would be we'd flip the fraction around/find the reciprocal and multiply 24 by it. That gives us "x" or the number we're missing.

So: [tex]24 * \frac{4}{3} = x[/tex]

Doing the simple math we get:

[tex]24 * \frac{4}{3} = 32[/tex].

32 is your answer.

Hope this helps and have a nice day! Sorry I'm not great at explaining it!

Arun's family took a road trip to Niagara Falls. Arun fell asleep 69% of the way through the trip. If Arun fell asleep after they had travelled 690 miles, what was the total length of the trip?​

Answers

1,000 miles, also is this some sort of joke question?

Mia deposited $2,500 in an account that earned simple interest annually. She did not make additional deposits; she did not make withdrawals.



At the end of 6 years, the balance was $3,025. What is the interest rate on this account?

Answers

The percent is 5.25%

The interest rate on Mia's account is 20.17%.

What is the simple interest?

The borrowing amount is just the principal amount multiplied by the simple interest rate.

Given, Mia deposited $2,500 in an account that earned simple interest annually. She did not make additional deposits; she did not make withdrawals.

The formula to calculate the simple interest is;

                                                 S.I. = P x T x R / 100 ,

Where S.I. is simple interest , P is principal amount, T is time period and R is interest rate in a year.

We have, P = $2500 T = 6 years, S.I. = $3025

Substituting all the values in the formula;

3025 = 2500 x 6 x R / 100

R = 3025 x 100 / 15000

R = 20.17%

Therefore, the interest rate is 20.17%.

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Solve the equation. Explain your steps.

Answers

Answer:

x=-36

Step-by-step explanation:

x+1=-35 (divide both sides by 5)

x=-36 (subtract 1 from each side)

May you plz help me I am struggling with slopes

Answers

Answer:

(1,-5) basically x and y -5 is your y and 1 is your rise and run.

Step-by-step explanation:

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