How do you fine arccot(-sqrt(3))?

Answers

Answer 1
[tex]arccot{(- \sqrt{3}) }=arccot(-\cot{ \frac{\pi}{6} )=-arccot{(\cot{ \frac{\pi}{6})}=- \frac{\pi}{6}[/tex]
Answer 2

Answer:The answer is be And i’m Strongly positive about this because i just got it right!

Step-by-step explanation:


Related Questions

What is the radius of a sphere that has a surface area of 196π sq ft?

Answers

4πr^2=196π r^2=49 r=7

Please!!!!!!!!! I need this answers ASAP Pleas !!!!!!!!

Question 1
If y varies directly with x and y = 4 when x = 12, then what is the value of y when x = 60?

Question 2
If y varies directly with x and y = 3 when x = 12, then what is the value of y when x = 40?

Question 3
Suppose p varies directly with d, and p = 7 when d = 3. What is the value of d when p = 28?

Question 4
What is the direct variation equation for the table of ordered pairs?

x y
80 56
90 63
100 70

Question 5
What is the direct variation equation for the table of ordered pairs?

x y
60 48
70 56
80 64

Answers

1) 20
2) 10
3) 12
4) y = 0.7x
5) y = 0.8x

Answer:

1) 20

2) 20

3) 12

4) 0.7

5)0.8

Step-by-step explanation:

when it asks questions like question 1 and 2 and 3 just take what the number is multiplied by

Jared is 10 years old and Peter is 15 years old. Together they run 150 yards. How far does each brother run.

Answers

10x + 15x = 150 x = 6;
 
Jared = 10(6) = 60

Peter = 15(6) = 90
So it would look like this.

10x +15x = 150y

x is now 6

So 10(6) and 15(6)

Peter ran 60 yards.

Jared ran 90 yards.



Laura is baking a cake. The recipe says that she has to mix 64 grams of chocolate powder to the flour. Laura knows that 1 cup of that particular chocolate powder has a mass of 128 grams. She added two over three of a cup of chocolate powder to the flour. Should Laura add more chocolate powder to make the exact recipe or did she go over and by what amount?

She went over by one over three of a cup

She needs to add one over three of a cup

She needs to add one over six of a cup

She went over by one over six of a cup

Answers

The answer is She went over by one over six of a cup

1 cup of that particular chocolate powder has a mass of 128 grams: 1c = 128g

64 grams of chocolate powder is x cups.
1c = 128g
x = 64g

1c : 128 g = x : 64g
x = 1c : 128 g * 64 g
x = 0.5 c
64 grams of chocolate powder is 0.5 cups = 1/2 cups

She added two over three of a cup of chocolate powder: 2/3 cups

She need to add 1/2 cups: 1/2 = 3/6 cups
She added 2/3 cups: 2/3 = 4/6 cups

So she added 4/6 - 3/6 = 1/6 cups more.

This table represents an exponential function.

What is the ratio of outputs for any two inputs that are 2 apart?

Divide the larger output by the smaller output.

Enter your answer in the box as a decimal to the nearest hundredth.

This is how the table looks

Number of Years from Now Value of a Scooter ($)
0|45
1|48.24
2|51.71
3|55.44
4|59.43

Answers

Answer:

it is 1.15 the dude on top is right it is 1.15 i took the test and it 1.15

Step-by-step explanation:

The output of the defined number operation indicates the operations involved in the function.

The ratio of outputs for any two inputs that are 2 apart is approximately 1.149.

Reasons:

The table is presented as follows;

[tex]\begin{array}{|cc|c|}Number \ of \ years \ from \ Now&&Value \ of \ a \ Scooter\\0&&45\\1&&48.24\\2&&51.71\\3&&55.44\\4&&59.43\end{array}\right][/tex]

The ratio of the outputs for two inputs that are 2 apart, with the larger output divided by the smaller output are;

[tex]Between \ 0 \ and \ 2; \dfrac{51.71}{45} = 1.149 \overline 1[/tex]

[tex]Between \ 1 \ and \ 3; \dfrac{55.44}{48.24} \approx1.1493[/tex]

[tex]Between \ 2 \ and \ 4; \dfrac{59.43}{51.71} \approx 1.149294140[/tex]

Therefore;

The ratio of outputs for any two inputs that are 2 apart is approximately 1.149.

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Solve the equation below for y.
8x - 2y = 24
A. y= 4x - 12
B. y= 12 - 4x
C. y = 8x - 24
D.y = 4x - 8

Answers

A

Because 8x - 2y = 24 is equal to -2y = -8x + 24 is equal to y = 4x - 12.

The given equation, when solved for y gives y = 4x - 12.

Hence, option A is correct.

Given is an equation 8x - 2y = 24, we need to solve for y.

To solve the equation for y, you need to isolate y on one side of the equation.

Let's do that step by step:

Start with the original equation:

8x - 2y = 24

Get rid of the constant term on the left side by subtracting 8x from both sides:

-2y = -8x + 24

Now, we want to solve for y, so we need to get rid of the coefficient of y (-2).

To do that, divide both sides by -2:

y = (-8x + 24) / -2

Simplify the right side of the equation:

y = -8x / -2 + 24 / -2

Simplify further:

y = 4x - 12

So, the solution for y is:

A. y = 4x - 12

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A projectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 640t. After how many seconds does the projectile take to reach its maximum height? Show your work for full credit.

Answers

It would only be 1 second.

h(1)=−16(1^2)+(640)(1)

After simplification, the answer would be h = 624.

If you substituted 2 for t, you would see that h would get smaller. Each time you increased t, h would get smaller.

According to the diagram, a 13-foot ladder leans against a 12-foot wall. The distance from the base of the ladder to the base of the wall is 5 feet. Based on this information, which trigonometric ratio has the value 125?

tan C

cos C

tan A

sin A

Answers

The correct answer is tan A

Answer:

tan A

Step-by-step explanation:

Using the notation SOH CAH TOA

sin = opp/hyp

cos = adj/hyp

tan = opp/adj

from the triangle,

hyp = 13 while opp and adj are 12 and 5 respectively

therefore, the ratio 12:5

= tan = opp/adj = 12/5

What is the side length of a cube with a volume of 4913 m3? m

Answers

We Know, volume of cube, m³ = 4913
m = ∛4913
m = 17

So, your final answer is 17

Hope this helps!

Help!!!!!: Ben opened a credit card at a department store with an APR of 27.99% compounded monthly. What is the APY on this credit card?
2.33%
31.88%
39.27%
55.98%

Answers

The answer is B. 31.88%

Answer:

31.88%

Step-by-step explanation:

The monthly added compound interest will be:

3.89 %

The new APY interest on the credit card = 3.89 + 27.99

                                                                    = 31.88 %

what does the expression 15 - 3[2+6 (-3] simplify to?

Answers

Use pemdas to solve. Answer is 63
You start by doing order of operations. First parenthesis, in this case [2+6(-3)]. Which leaves you with [8(-3)]. Multiply and you have -27. Now for 15-3 which is 12. You're left with 12-27 which is simplified.

Which polynomial expression represents the area of the outermost square tile, shown below?

A square shaped tile with length x plus three is shown

x2 + 6x + 6

x2 + 9x + 6

x2 + 6x + 9

x2 − 6x + 9

Answers

Answer:

The correct answer is C,  "x2 + 6x + 9."

Step-by-step explanation:

I just got it correct on the test.

Final answer:

To find the area of a square tile with sides of length x + 3, we square the binomial, resulting in the polynomial expression x² + 6x + 9, which represents the area of the square tile.

Explanation:

The question asks which polynomial expression represents the area of a square tile with sides of length x + 3. To find the area of a square, you multiply the length of one side by itself. In this case, the length of each side of the square is (x + 3), so the area of the square is (x + 3)(x + 3), or (x + 3)².

To expand this expression, we use the formula for squaring a binomial: (a + b)² = a² + 2ab + b². Applying this formula to our expression, we get:

a = x

b = 3

(x + 3)² = x² + 2(3)x + 3²

(x + 3)² = x² + 6x + 9

Therefore, the correct polynomial expression that represents the area of the square tile is x² + 6x + 9.

Write the fraction as a percent. If necessary, round to the nearest tenth of a percent. 18/25

47.3%
48.6%
72%
73.4%

Answers

18/25 = 0.72
0.72 = 72% 

Which shows the conversion of 0.56 mm to inches?

There is 0.03937 inch in 1 millimeter.

A.
0.56 mm × 0.03937 in./mm = 0.022 inches

B.
0.56 mm × 0.03937 in./mm = 2.2 × 10^-3 inches

C.
0.56 mm + 0.03937 in./mm = 0.59937 inches

D.
0.56 mm ÷ 0.03937 in./mm = 14.22 inches

Answers

The answer is letter A: 0.56mm*0.03937inches/1mm = 0.0220472 inches
You can round it 0.022 inches

In order to purchase a home, a family borrows $159,000 at 6.5% for 30 years. Use the table to find their monthly payment. Round the answer to the nearest cent.

a. $954.00                 c. $1,186.14
b. $1,006.47               d. $1,276.36

Answers

So, the given figure above shows us the monthly payments and interest in a $1000 of mortgage. So the interest rate monthly for 30 years is 6.33 dollars. So now, since it is stated that you are going to borrow $159,000, we will just have to multiply 6.33 by 159 and the result would be $1006.47. Therefore, the answer would be option B. Hope this answer helps.

Answer:

B

Step-by-step explanation:

Which graph shows the axis of symmetry for the function f(x) = (x – 2)2 + 1?

Answers

What are the options?

Answer:

B

Step-by-step explanation:

A video rental company offers a plan that includes a membership fee of $6 and charges $2 for every DVD borrowed. They also offer a second plan, that costs $48 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans cost the same amount. What is that total cost of either plan? How many DVDs is that?

Answers

The number of DVD's you need to rent for the plans to cost the same is ($48-$6)/$2 = 21 DVDs

I need help on geometry proofs<br />

Answers

Make a table. On the left will be the thing you are trying to prove, on the right will be the proofs. (L=left R=Right) Use correct symbols because I can't enter them through Brainly.

1L. line AS congruent line DS           1R. Given

2L. line BS congruent line Cs            2R.  Given

3L. Angle ASB congruent Angle DSC     3R. VAT or Vertical Angle Theorem 

4L. Triangle ABS congruent Triangle DCS  4R. SAS or Side-angle-side Postulate

5L. angle A congruent angle D                     5R. CPCTC
(Corresponding Parts of Congruent Triangles are Congruent) 


A baseball that usually cost $65 is on sale for $55.25. what is the percent off?

Answers

15% is the answer for your problem

logarithm equation. Show the steps to solve. 400/1+e^-x=350

Answers

400 / ( 1 + e^(-x)) = 350
1 + e^(-x) = 400/350
1 + e^(-x) = 8/7
e^(-x) = 8/7 - 1
e^(-x) = 1/7
1/e^(x) = 1/7
e^(x) = 7
x = log ( base e ) 7 or:
x = ln 7
x = 1.94591

Is 69 a prime or composite number

Answers

composite number. 69=3×23

Answer:

composite

divisible by 3,1,69,23

Have a nice day!

Step-by-step explanation:

Solve the inequality W > Y plus H all divided by P for H.

Answers

Here is the answer to the given question above. So based on the given equality, W > y+h / P
So in order to solve this, let us eliminate the denominator by multiplying both sides by P so we get Wp > y + H. So to get the value of H, we are going to transfer y and it would look like this. Wp - y > H. So this is the final answer. Hope this helps.

Answer:

WP − Y > H

Step-by-step explanation:

I did the test and got it right

What is the length of the hypotenuse of a right triangle with leg lengths of 8 inches and 15 inches?
A. 13 inches

B. 17 inches

C. 21 inches

D.25 inches

Answers

Answer:

B.17 INCHES

Step-by-step explanation:

Answer:

the answer is B

Step-by-step explanation:

just helping the other guy get brainliest.

let f(x) = x 8 and g(x) = x2 - 6x - 7. find f(g(2)). select one:a. -7b. -3c. 10d. 33

Answers

I hope this helps you



x=2


g (2)=2^2-6.2-7


g (2)=4-12-7


g (2)= -15


f (g (2))=f (-15)= -15+8


f (-15)= -7

Which is larger 5 miles or 26,300 ft?

Answers

5 miles.
1 mile = 5,280 ft.

5,280 × 5 = 26,400 ft.

So 5 miles is bigger.

to express the polynomial d^2+d^3-d+3 in standard form, which term should be written first?
*the quartic term
*the constant term
*the cubic term
*the quadratic term ...?

Answers

When you want to write a polynomial, you should write the term with the highest degree first.
Here, it should go like this: d^3 + d^2 - d + 3
This means that the term which should be written first is the cubic term. 

Answer:

Option 3- the cubic term

Step-by-step explanation:

Given : Polynomial [tex]d^2+d^3-d+3[/tex]

To find : To express the polynomial  in standard form, which term should be written first?

Solution :

The given polynomial [tex]d^2+d^3-d+3[/tex]

The standard form of polynomial is arranged according to the higher degree to the lowest degree.

The degree is the power, first the higher degree then the lower and last the constant term.

In our given polynomial the highest degree is 3 so it is the first term of the polynomial.

The standard form is [tex]d^3+d^2-d+3[/tex]

Therefore, The required result is the cubic term is written first.

graph of y=3 tan x ...?

Answers

The graph of y = tan x

will look like a stretched tan (x) by a factor of 3

It's not horizontal line

hope this helps

why must s-phase occur before mitosis?
...?

Answers

Here is the answer of the given question above.
S phase happens after G1 phase and this is a crucial period because this is when DNA is copied. G2 phase then happens, which is prior to mitosis. Once this is complete, this then mitosis happens wherein the cells divides the contents of the nucleus between two daughter cells. Hope this answer helps.

Which expression has the most number of significant figures?
A. 190
B. 1.8
C. 26
D. 206

Answers

figure are significant if they are a number greater than 0, if they're after a decimal place, or if they're a 0 in between significant numbers

190 has 2 sig figs
1.8 has 2 sig figs
26 has 2 sig figs
206 has 3 sig figs

thus, the answer is 206
D because the 0 is in between the 2 and 6 and in a it can be rewriten as 19. x 10

The table below shows the temperature (in °F) t hours after midnight in Phoenix on March 15. The table shows values of this function recorded every two hours.

Estimate the value of T′(8). Give units in your answer.
What is the meaning of T′(8)?


t 0 2 4 6 8 10 12 14
T 73 73 70 68 73 80 86 89

Answers

We need to estimate the value of T'(8) and then we need to give the meaning of this value. Since we have a table and not an expression of a function our goal is to find the Average Rate of Change between two points.


For a nonlinear graph whose slope changes at each point, the average rate of change between any two points [tex](x_{1},f(x_{1}) \ and \ (x_{2},f(x_{2})[/tex] is the slope of the line through the two points. So:


[tex]ARC=\frac{f(x_{2})-f(x_{1})}{x_{2}-x_{1}} =\frac{Change \ in \ y}{Change \ in \ x}=m_{sec}[/tex]


1. Estimated value of T′(8).


T'(8) means the derivative of the function T(t) when t = 8 hours. So, we can estimate this value using the average rate of change:

[tex]ARC=\frac{T(8)-T(6)}{8-6} =\frac{73-68}{8-6}=\frac{5}{2} \ degrees \ per \ hours[/tex]


2. The meaning of T′(8)

This means the average temperature after midnight in Phoenix on March 15, from t = 6 to t = 8 hours, that is, for each hour the temperature rises 5/2 degrees on the Fahrenheit scale. The points have been plotted in the Figure bellow.

The rate of change of the temperature is 3 degrees Celsius per hour. This response means that temperature has an instantaneous increase rate of 3 degrees Celsius per hour at [tex]t = 8\,h[/tex].

We can estimate the rate of change of the temperature, in degrees Celsius per hour, by calculating the average of two consecutive secant lines, whose expression is presented below:

[tex]T'(t) \approx \frac{1}{2}\cdot \left[\frac{T(t+\Delta t)-T(t)}{\Delta t} + \frac{T(t)-T(t-\Delta t)}{\Delta t} \right][/tex] (1)

If we know that [tex]\Delta t = 2[/tex], [tex]T(6) = 68[/tex], [tex]T(8) = 73[/tex] and [tex]T(10) = 80[/tex], then the estimated value of the rate of change of the temperature is:

[tex]T'(8) = \frac{1}{2}\cdot \left[\frac{80-73}{2}+\frac{73-68}{2} \right][/tex]

[tex]T'(8) \approx 3\,\frac{^{\circ}C}{h}[/tex]

The rate of change of the temperature is 3 degrees Celsius per hour. This response means that temperature has an instantaneous increase rate of 3 degrees Celsius per hour at [tex]t = 8\,h[/tex].

We kindly invite to check this question on rates of change: https://brainly.com/question/18904995

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