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
Pepsi [2]
3 years ago
5

In triangle ABC, ZA and B are complementary, where cos A = 0.5.

Mathematics
1 answer:
Marizza181 [45]3 years ago
7 0

Answer: Angle B measures 30 degrees.

Step-by-step explanation: First of all, angles A and B are complimentary, which means they both add up to 90. Also the cosine of angle A has been given as 0.5

The value in degrees, of an angle whose cosine is 0.5000 is equal to 60 degrees (this can be verified with a table of values, or by checking the second function Cosine of a calculator).

Where angle A has been determined to be 60 degrees and angles A and B are complimentary, angle B is derived as follows;

Angle A + Angle B = 90 {Complimentary angles equal 90}

60 + Angle B = 90

Subtract 60 from both sides of the equation

Angle B = 30 degrees

You might be interested in
Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AC=14 and DC=5, what is the length of BC in simplest radica
juin [17]

Answer:

Step-by-step explanation:

3 0
3 years ago
One half of a number p is at least 100
4vir4ik [10]

so then P could be any number greater then or equal to 200,hope this helps,please vote me brainliest


5 0
3 years ago
Read 2 more answers
Which of the following is not part of the converse of the triangle proportionality theorem?
professor190 [17]
Converse-if a line drawn frm one side of a triangle to the other side divides the 2 sides in equal ratio then the line is parallel to the third side.
3 0
4 years ago
Read 2 more answers
A zookeeper is monitoring the population of gazelles. The herd needs three times more males than females to thrive, and the zoo
avanturin [10]

Answer:

0 < x ≤ 12 and 0 < y ≤ 36

Step-by-step explanation:

Here,  x represents the number of female gazelles and y represents  the number of male gazelles.

The zoo only has room for 12 female gazelles.

∵ The number of rooms must be more than or equal to the total female gazelles ,

12 ≥ x

Also, number of animals can not be negative,

And, it must be greater than 0.

⇒ 0 < x ≤ 12,

⇒ 3(0) < 3x ≤ 3(12)

⇒ 0 < 3x ≤ 36

∵ Number of males gazelles = 3 × number of female gazelles

⇒ y = 3x

⇒ 0 < y ≤ 36

Hence, the constraints to represent a thriving population of gazelles at the zoo are,

0 < x ≤ 12,

0 < y ≤ 36

7 0
3 years ago
Read 2 more answers
Which number sentence does the following number line represent?
siniylev [52]

Answer:

Last option: 3+(-7)=-4

Step-by-step explanation:

The number line can help us to make additions and subtractions.

To add a positive number we need to move the point to the right and to add a negative number we need to move the point to the left.

You can observe in the figure that the point on the number line is moved from 3 to -4, then it is moved 7 places to the left. Therefore, you can express it in the following form:

3+(-7)

This is:

3+(-7)=3-7=-4

Then the number line represents this number sentence:

3+(-7)=-4

7 0
3 years ago
Other questions:
  • Sketch a line passing through the point and having slope m.<br><br> (0,6), m=-3
    6·2 answers
  • jane baked 56 cookies for her friends she gaved each friend 7 cookies how many of her friend got cookies
    9·2 answers
  • An investigation of the ability of a hybrid tomato plant to produce a certain protein found that the amount x of the protein pro
    7·1 answer
  • Population of 2,400 increased by 80%
    6·1 answer
  • The legs of a isosceles right triangle both measure 10 inches find the length of the hypotenuse
    8·1 answer
  • What is your favorite breed of dogs? and what is 1 + 10??? I need help
    15·2 answers
  • Solve for x 18=r/2 as a fraction​
    13·1 answer
  • The graph of a function f is shown below. Find f(-1).
    13·1 answer
  • Pls help will give brainiest. Find the length of side A.
    9·1 answer
  • You are creating a 4 letter password using only the 26 lowercase letters from the alphabet, how many unique passwords could you
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!