−13π/5 find the reference angle

Answers

Answer 1
I would convert to degrees first seems to make it easier.
[tex] \frac{-13 \pi }{5} [/tex]×[tex] \frac{180}{ \pi } [/tex]
= -468
by adding 360 twice we get the coterminal angle 252

252 is in the 3rd quadrant so 180 is the closest angle on the x-axis
ref angle = 252 - 180 = 72 

If necessary convert back to radians... [tex]72( \frac{ \pi }{180} )= \frac{2 \pi }{5} [/tex]

Related Questions

A volleyball curt is 61 feet lenght and 21 feet wide. How much rope will you use to mark the outline on the court?

Answers

So finding the rope is kind of like finding the perimeter. Add 61+61+21+21 and you will get 164 feet.

3 pounds of lawn seeds cover 1800 ft.². How many 4 pound bags are needed to cover 8400 ft.²

Answers

1800/3 = 600
Every pound covers 600 square feet
8400/600 = 14
14/4 = 3.5 (round up) so it would become 4.


You would need 4 bags

I hope this helps!

Help me please! 33 coins, consisting of nickels, dimes, and quarters, have a total value of $3.30. If there are three times as many nickels as quarters, and one-half as many dimes as nickels, how many coins of each kind are there?

Answers

There would be 6 quarters, 9 dimes, and 18 nickels

Answer:

6 quarters, 9 dimes, and 18 nickels

What is the value of x enter your answer in the box.

Answers

We can use vertical opposite angles. Which means the opposite angles where 2 lines intersects is the same.
3x + 50 = 6x - 10 (vert. Opp. Angles)
3x = 6x - 60
-3x = - 60
X = 20°

The table shows the mean daily temperature in North Dakota during a week in February. Which statment about the data is true?

Answers

The lowest mean temperature was on Friday.

Answer:

The lowest mean temperature was on Friday.

Step-by-step explanation:

TTM Answer

Graph a slope 3x-9y=9,3y=x+12,2x-6y=12

Answers

     [tex]3x-9y=9[/tex]                             Equation

[tex]-9y=-3x+9[/tex]                                 Subtract 3x from both sides

[tex]y= \frac{1}{3}x-1 [/tex]                      Divide by -9 on both sides

[tex]3x- 9( \frac{1}{3}x-1)=9[/tex]            Plug in for y

[tex]9=9[/tex]                                            Distribute -9 into the ( ) and simplify
 
     [tex]3y=x+12[/tex]                            
Equation

[tex]y= \frac{1}{3}x+4 [/tex]                     Divide by 3 on both sides

[tex]3( \frac{1}{3}x+4)=x+12[/tex]          Plug in for y

[tex]x+12=x+12[/tex]                               Simplify 

     [tex]2x-6y=12[/tex]                           Equation

[tex]-6y=-2x+12[/tex]                               Subtract 2x from both sides

[tex]y= \frac{1}{3}x-2 [/tex]                      Divide by -6 on both sides

[tex]2x-6( \frac{1}{3}x-2 )=12[/tex]         plug in for y

[tex]2x-2x+12=12[/tex]                           Distribute -6 into the ( )

[tex]12=12[/tex]                                       Simplify

Charles is going camping with his family their campsite is 7/8 miles away they walk at a steady speed 1 7/8 mph how many minutes will it take them to get to the campsite

Answers

r=d/t
15/8=7/8 divided by t
so t=7/8 divided by 15/8
     t=7/15
convert to minute
so 7/15*60=28 min is answer
message does it help u

If a cone shaped water cup holds 23 in.³ and has a radius of 1 inch what is the height of the cup use 3.14 for pie round into the nearest hundredth

Answers

The voolume of a cone is given by the formula:

[tex]V = \frac{1}{3} \pi r^{2}h [/tex]

You know the volume, the radius, and pi. Substitute those values into the formula and solve for h, the height.

[tex]23 = \frac{1}{3} (3.14) (1)^{2}h [/tex]

[tex]23 = 1.0466h [/tex]

h = 21.97 in.

-4(m-5)=-12 last question I’m stuck on

Answers

-4m+20 = -12
-4m = -32
m = 8
The answer is M = 8

Sales for a company were 6 million dollars more the second year than the first, and sales for the third year were tripled the sales for the second year. If sales for the third year were 24 million dollars, what were sales, in millions of dollars, for the first year?

Answers

Sales for the first year were 2 millions of dollars

Further explanation

Solving linear equation mean calculating the unknown variable from the equation.

Let the linear equation : y = mx + c

If we draw the above equation on Cartesian Coordinates , it will be a straight line with :

m → gradient of the line

( 0 , c ) → y - intercept

Gradient of the line could also be calculated from two arbitrary points on line ( x₁ , y₁ ) and ( x₂ , y₂ ) with the formula :

[tex]\large {\boxed {m = \frac{y_2 - y_1}{x_2 - x_1}}[/tex]

If point ( x₁ , y₁ ) is on the line with gradient m , the equation of the line will be :

[tex]\large {\boxed {y - y_1 = m ( x - x_1 )}}[/tex]

Let us tackle the problem!

Let:

Sales for the first year = s₁

Sales for the second year = s₂

Sales for the third year = s₃

Given:

s₂ = 6 + s₁

s₃ = 3s₂

s₃ = 24

Unknown:

s₁ = ?

Solution:

[tex]s_3 = 3s_2[/tex]

[tex]24 = 3s_2[/tex]

[tex]s_2 = 24 \div 3[/tex]

[tex]s_2 = 8[/tex]

[tex]s_2 = 6 + s_1[/tex]

[tex]8 = 6 + s_1[/tex]

[tex]s_1 = 8 - 6[/tex]

[tex]s_1 = 2[/tex]

Conclusion:

Sales for the first year = 2 millions of dollars

Learn moreInverse of Function : https://brainly.com/question/9289171Rate of Change : https://brainly.com/question/11919986Graph of Function : https://brainly.com/question/7829758

Answer details

Grade: High School

Subject: Mathematics

Chapter: Function

Keywords: Function , Trigonometric , Linear , Quadratic

The sales in the first year is [tex]\boxed{2{\text{million of dollars}}}.[/tex]

Further explanation:

The linear equation with slope m and intercept c is given as follows.

[tex]\boxed{y = mx + c}[/tex]

The standard form of the linear equation can be expressed as follows,

[tex]\boxed{ax + by = c}[/tex]

The formula for slope of line with points [tex]\left( {{x_1},{y_1}} \right)[/tex] and [tex]\left( {{x_2},{y_2}} \right)[/tex] can be expressed as,

[tex]\boxed{m = \frac{{{y_2} - {y_1}}}{{{x_2} - {x_1}}}}[/tex]

Explanation:

Consider the sale in the first year as [tex]x[/tex].

Consider the sale in the second year as [tex]y[/tex].  

Consider the sale in the third year as [tex]z[/tex].

Sales for a company were 6 million dollars more the second year than the first.

[tex]y = 6 + x[/tex]

Sales for the third year were 24 million dollars.

[tex]z = 24[/tex]

Sales for the third year were tripled the sales for the second year.

[tex]z = 3y[/tex]

Substitute 24 for z in above equation.

[tex]\begin{aligned}24&= 3y\\\frac{{24}}{3} &= y\\8&= y\\\end{aligned}[/tex]

Substitute [tex]8[/tex] for [tex]\text{y}[/tex] in equation [tex]y = 6 + x[/tex]

[tex]\begin{aligned}8&= 6+ x\\8 - 6&= x\\2&= x\\\end{aligned}[/tex]

The sales in the first year is [tex]\boxed{2{\text{million of dollars}}}.[/tex]

Learn more:

Learn more about inverse of the function https://brainly.com/question/1632445. Learn more about equation of circle brainly.com/question/1506955. Learn more about range and domain of the function https://brainly.com/question/3412497

Answer details:

Grade: High School

Subject: Mathematics

Chapter: Linear inequality

Keywords: sales, company, 6 million, dollars, second year, first, sales for second, sales for third year, tripled, first year, 24 million, millions of dollars.

Which of the following shows the proper steps for constructing an angle bisector?

Answers

The answer is B. It is the only one that shows an angle bisector.
An angle bisector is a line that split an angle into two. As you can see, B is the only choice that shows that.

Hope this helps!

Option 2 is the correct answer because it shows the proper steps for constructing an angle bisector using a compass and a straightedge.

Steps:

Draw the angle to be bisected.

Place the compass point at the vertex of the angle and draw an arc that intersects both sides of the angle.

Without changing the compass radius, place the compass point at each of the arc intersection points and draw two more arcs that intersect each other.

Draw a line from the vertex of the angle through the point of intersection of the two arcs.

This line is the angle bisector.

The other options are incorrect because they do not show all of the necessary steps, or they show the steps in the wrong order.

For example, option 1 shows the steps for constructing an angle bisector using a protractor, but this is not the method that was asked for.

Option 3 shows the steps for constructing an angle bisector using a compass and a straightedge, but it does not show the step of drawing the arc through the vertex of the angle.

Option 4 is incorrect because it shows the steps for constructing an angle bisector using a ruler and a triangle, but this is not the method that was asked for.

For such more question on bisector

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Solve the inequality and graph it...
9x -9 greater than or equal to 2(8x-15)

Answers

9x - 9 > = 2(8x - 15)
9x - 9 > = 16x - 30
9x - 16x > = -30 + 9
-7x > = - 21
x < = -21/-7
x < = 3

closed circle on 3, shaded to the left
closed circle on 3, shaded to the left cred to texascic

hope it helps

is 4 3/8 larger than 4.25 lb

Answers

Answer: Yes

Explanation:
4.25 
4[tex] \frac{3}{8} [/tex]    this can be written as a decimal by dividing 3 by 8
3 ÷ 8 = .375 
4.375 > 4.25

4 [tex]\frac{3}{8}[/tex] is  larger than 4.25 lb.

We'll convert the fraction 4 [tex]\frac{3}{8}[/tex]  to a decimal and compare it to the decimal 4.25.

First,

convert the mixed number 4 [tex]\frac{3}{8}[/tex] to an improper fraction:

4 [tex]\frac{3}{8}[/tex] = 4 + [tex]\frac{3}{8}[/tex]

Next,

convert [tex]\frac{3}{8}[/tex]  to a decimal:

3 ÷ 8

= 0.375.

Add the whole number part and the decimal:

4 + 0.375

= 4.375.

Now, we compare 4.375 with 4.25:

4.375 is clearly larger than 4.25.

So, 4 [tex]\frac{3}{8}[/tex]  is larger than 4.25 lb.

Use the Distributive Property to show that x+x=2x

Answers

x+x=2x
2x=2x the problem checks

Write an inequality that expresses the reason the lengths 5 feet, 10 feet, and 20 feet could not be used to make a triangle. Explain how the inequality demonstrates that fact.

Answers

The 2 smallest lengths in a triangle have to add up to be greater that the longest side of the triangle. In this case, the longest side is 20. The 2 smallest sides are 5 and 10. 5+10=15, but 15<20. This is why these 3 lengths can’t create a triangle.

how do you turn 3 7/8 into a decimal?

Answers

Use photomath it gives you the answer plus it gives you the steps on how to do it too
3 times 8 plus 7 = 31/8
then divide 31 by 8
= 3.875

Express -5 1/4 as a decimal

Answers

I believe it would be -5.25
-5.25 if you literally meant -5 1/4

what r the greatest common factor of 42 and 32

Answers

the greatest common factor of 42 and 32 is 2 i think
the greatest common factor of 42 and 32 is 2

use co.patible numbers to find two estimates 73÷4,858

Answers

NO.2 answer is 5088.052869

Noya needs to determine the number of books that will fit into a box. If the box has a length of 18 inches and each book is 2/9 of an inch thick, which expression can be used to determine the number of books that will fit into the box?

Answers

2/9 x = 18; If the total amount of space is 18 inches, and each book is 2/9ths of an inch thick, you have to use x to figure out the missing value of how many books will fit
- First  we know that each book is 2/9 inch thick
- The total  length of the box is 18 inches
- And we can fill the box with x Amounts of 2/9 inch books as long as the total  length DO NOT SURPASS 18 inches

So, the expression would be

[tex]2/9 x \leq 18[/tex]

In which x is the total number of books

can someone help me I need help with this question

Answers

To find the difference of 5 1/8 and 2 1/5 I would first turn the mixed numbers into improper fractions. Therefore, I would have 41/8 - 11/5. Then, I would find a common denominator which would be 40. I would have 205/40 - 88/40 and I would end up with 117/40. 

Can you please help me answer my question? I already asked it but it hasn't been answered. It is fro social studies: What were some accomplishments of Montezuma?

In each box, 15% of the total candies are cherry flavored. In a box of 20 candies, how many are cherry flavored? Enter the missing value in the box to complete the ratio table. Part Whole 20 15 100

Answers

15% of the total candy is cherry....and there are 20 candies...
so 15% of 20 is cherry...0.15(20) = 3...so there are 3 cherry flavored in a box of 20

In this circus there are hippopotamus’s, hummingbirds, a reindeer or 2,ducks and acrobats. Can you figure out how many there are of each from the following clues?

Five of the animals spend most of their time in the water.

There are four antlers.

There are 10 wings.

There are two birds that quack.

There are 50 fingers.

There are 40 feet.

Answers

5 hippopotamus's, 2 reindeer, 5 hummingbirds, 2 ducks, and 5 acrobats

To make a trail mix you must have 4 cups of pretzels and 2 cups of bread chips. What is the ratio of pretzels to bread chips.

Answers

It's 2:1
4:2 divided by 2 on both sides is 2:1
The answer is 2:1
Hope this helps! Let me know if you need any further assistance!

Which of the following inequalities is not true?

-22 < 3
|-1| ≥ 0
|-9| ≠ |9|
-7 ≤ -5

Answers

The inequality that is not true is |-9|≠|9| because the absolute value sign makes the number inside is positive making both sides equal to each other

What are the steps to solve this problem 0.000027 divided by 0.00000.9 in scientific notation explain

Answers

Please double-check the original problem.  0.00000.9 is bad form (because of your having two periods in it).

If you wish to divide 0.000027 by 0.000009, you could rewrite both numbers in scientific notation and then perform the division:

2.7E(-5)         27E(-6)
------------ =  ---------------- = 3
 9E(-6)             9E(-6)

2a/b= w. how do i solve for a in terms of b and w

Answers

2a/b = w

 divide both sides by 2 to get

a/b = w/2

now multiply both sides by b to get

a = bw/2

Plz help my little sis get her hw done

Answers

1) 10 times or (10x)
2) 1/10
3) 100,000
4) 100
5)1,000,000
6) 100
7) 10
8) 10
9) 100
10)10
11) 10
12) 10
13) 10

hope this helps

HELP!!

Lucita does the division problem 3.302 ÷ -1.27, and gets -0.026. She doesn't understand this result because she had estimated the answer to be -3. What was Lucita's mistake?

(A)The decimal point should be to the left of the 2.

(B)The decimal point should be to the left of the 6.

(C)Lucita's estimate is too low.

(D)Lucita's estimate is too high.

Answers

A is INCORRECT because Lucita's estimate is about right and if the decimal point was to the left of 2, then the answer would be -0.26 which is still too small.

B is CORRECT because again Lucita's estimate is about right and if the decimal is to the left of six the number would be -2.6 which is close to her estimate (-3)

C is INCORRECT because it is saying that -0.026 is the correct answer and Lucita's estimate was just too small which is incorrect since we know -0.026 is actually what is too small.

D is INCORRECT because it is saying that -0.026 is correct and if her estimate (-3) was too high, it would be bigger than the number she got which was -0.026 and regardless of anything we know -3 is not bigger that -0.026.

hope this helps C:

The decimal point should be to the left of the 6.

What is Division?

A division is a process of splitting a specific amount into equal parts.

A is INCORRECT because Lucita's estimate is about right and if the decimal point was to the left of 2, then the answer would be -0.26 which is still too small.

B is CORRECT because again Lucita's estimate is about right and if the decimal is to the left of six the number would be -2.6 which is close to her estimate (-3)

C is INCORRECT because it is saying that -0.026 is the correct answer and Lucita's estimate was just too small which is incorrect since we know -0.026 is actually what is too small.

D is INCORRECT because it is saying that -0.026 is correct and if her estimate (-3) was too high, it would be bigger than the number she got which was -0.026 and regardless of anything we know -3 is not bigger that -0.026.

Hence the decimal point should be to the left of the 6. Option C is correct.

To learn more on Division click:

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*I mark brainliest* Please help me on this question, explaining it, so I can understand this topic. Thank you.

Answers

answer d, because the equation is stating 3= $4.41, we are trying to figure out how much 4 cost
so d is correct as if u wanted to find out how much one thing cost u need to divide the number of the thing by its cost .An example is 20dollars for 4 apples. so 20/4=5 dollars for each apple. 

This equation shows how much 3 erasers cost, which in this case its 4.41. the equation equals to 4/x as the cost of 1 eraser is the same. so if u wanted to solve this equation, u can use the cross method to multiply it so 

3x=4.41*4
3x=17.64
x=5.88
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