1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Maksim231197 [3]
3 years ago
7

Find the compliment of an angle whose supplement is 115 degrees.

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

25°

Step-by-step explanation:

A supplementary angle refers to two angles that measure up to 180° degrees when added together.

Let x = one of the angles

Let y = 115°

x + y = 180^{\circ}

x = 180 - y

x = 180 - 115

x = 65°

To find the complementary angle;

A complementary angle refers to two angles that measure up to 90° degrees when added together.

Let a = one of the angles.

Let b = 65°

a + b = 90^{\circ}

a = 90 - b

a = 90 - 65

a = 25°

<em>Therefore, the complement of an angle whose supplement is 115 degrees is 25 degrees. </em>

You might be interested in
Find all solutions ​
Anton [14]

Answer:

The solutions of the equation are 0 , π

Step-by-step explanation:

* Lets revise some trigonometric identities

- sin² Ф + cos² Ф = 1

- tan² Ф + 1 = sec² Ф

* Lets solve the equation

∵ tan² x sec² x + 2 sec² x - tan² x = 2

- Replace sec² x by tan² x + 1 in the equation

∴ tan² x (tan² x + 1) + 2(tan² x + 1) - tan² x = 2

∴ tan^4 x + tan² x + 2 tan² x + 2 - tan² x = 2 ⇒ add the like terms

∴ tan^4 x + 2 tan² x + 2 = 2 ⇒ subtract 2 from both sides

∴ tan^4 x + 2 tan² x = 0

- Factorize the binomial by taking tan² x as a common factor

∴ tan² x (tan² x + 2) = 0

∴ tan² x = 0

<em>OR</em>

∴ tan² x + 2 = 0

∵ 0 ≤ x < 2π

∵ tan² x = 0 ⇒ take √ for both sides

∴ tan x = 0

∵ tan 0 = 0 , tan π = 0

∴ x = 0

∴ x = π

<em>OR</em>

∵ tan² x + 2 = 0 ⇒ subtract 2 from both sides

∴ tan² x = -2 ⇒ no square root for negative value

∴ tan² x = -2 is refused

∴ The solutions of the equation are 0 , π

4 0
3 years ago
Read 2 more answers
How do I do this? It is a regular hexagon with a height of 30. We have to find the perimeter of it.
Sliva [168]

Answer:

The radius of a hexagon is called the apothem, which in this case is 15.

We need to know the side length which is found by the equation:

side length = apothem * 2 * (tan (180 / #sides))

side length = apothem * 2 * (tan (180 / 6))

side length = 15 * 2 * (tan (30 degrees))

side length = 30 * .57735

side length = 17.3205

We need the perimeter of the hexagon which equals the side length times six.

perimeter = 6 * 17.3205 = 103.923

Source: https://www.1728.org/polygon.htm

Step-by-step explanation:

8 0
3 years ago
Nam has a bag of 8 chips numbered 1 to 8. He will perform an experiment to model the theoretical probability of pulling a chip w
Radda [10]
B is the correct answer I believe
8 0
3 years ago
Read 2 more answers
Solve each equation.<br> 1. x+6=4<br> 2.x- -4 = -6<br> 3.2(x-1)=-200<br> 4.2x+-3=-23
ziro4ka [17]

Step-by-step explanation:

1) x+6 =4

x. =4-6

x. =-2

2) x-(-4) =-6

x+ 4. =-6

x. =-6-4

x. =-10

3)2(x-1)=-200

2x-2 =-200

2x. = -200+2

2x. = -198

x. = -198/2

x. = -99

4)2x+(-3) =-23

2x-3. =-23

2x. =-23+3

2x. =-20

x. =-20/2

x. = -10

3 0
2 years ago
. Find the number of doughnuts for the workers if there are typically 3
Elena-2011 [213]

Answer:

25 doughnuts

Step-by-step explanation:

for 15 workers,

the numbers of doughnuts =

5 doughnuts/3 workers × 15 workers

= 75/3 doughnuts

= 25 doughnuts

7 0
2 years ago
Read 2 more answers
Other questions:
  • The given figure is a square pyramid the side length of the base of the pyramid is 5 inches the height if the pyramid is 3.3 inc
    5·1 answer
  • Simplify showing all steps:<br> <img src="https://tex.z-dn.net/?f=4i%28%20%5Cfrac%7B1%7D%7B2%7Di%29%5E2%28-2i%29%5E2" id="TexFor
    6·1 answer
  • Which equation can be used to calculate the surface area of the triangular prism net show below?
    6·2 answers
  • Dora cut a piece of string that is 33 centimeters long. What is the length of the peice of string in meters?
    12·1 answer
  • Is one for greater than listen or equal to 0.4
    9·1 answer
  • I need to solve the equation please help me
    8·1 answer
  • What is blessed and watches over you?
    13·2 answers
  • Use the fact that 135 X 37= 4,995 to find the value of 1,350 X 3,700?
    13·1 answer
  • A machine stamps 330 parts in 11 minutes. Find the unit rate in parts per hour.
    10·1 answer
  • What is the greatest common factor of 57 and 76?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!