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
Dafna1 [17]
3 years ago
11

What is the measure of angle A to the nearest degree?

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
5 0
There are several ways to find the angle at A.

One is to realize the bisector of angle A will make a right angle with BC, creating two congruent triangles with short leg 2 and hypotenuse 7. Then the sine of the half-angle at A will be 2/7, so
  A = 2*arcsin(2/7)
  A ≈ 2*16.6015° = 33.203°

The measure of the angle at A to the nearest degree is
  33°

_____
Another way to find the angle is to use the Law of Cosines. After solving for the angle (A) in terms of sides a, b, c, you find
  A = arccos((b²+c²-a²)/(2bc)) = arccos(7²+7²-4²)/(2*7*7))
  A = arccos(82/98) ≈ 33°

And you can always use a triangle solver application.

You might be interested in
The estimated difference between two numbers is 60. Find two numbers that when rounded to the nearest ten, have a difference of
Verdich [7]

Answer:

128 and 74.

Step-by-step explanation:

128 rounded to the nearest ten is 130, and 74 rounded to the nearest ten is 70. 130-70=60

7 0
3 years ago
When factored completely, the expression 3x? – 9x + 6<br> equivalent to<br> is
vodka [1.7K]

Answer:

Step-by-step explanation:

The given quadratic expression is

3x² - 9x + 6

Dividing each term in the expression by 3 in order to simplify it further, it becomes

x² - 3x + 2 = 0

We would determine two numbers such that their sum or difference is -3x and their product is 2x².

The two numbers are - 2x and - x.

Therefore,

x² - 2x - x + 2

x(x - 2) - 1(x - 2)

(x - 1)(x - 2)

When the expression is factored completely, it is equivalent to

(x - 1)(x - 2)

6 0
3 years ago
Find the GCF from the two numbers and rewrite the sum using nthe distributive property
Vadim26 [7]

Answer:

The greatest common factor is 6.

Step-by-step explanation:

Greatest common factor is 6. If you use the distributive property then the answer would be 6(4) + 6(6) or 6(4+6). Then you distribute the 6 to each digit and should get 24+36.

6 0
3 years ago
Input/output machine
Andreas93 [3]
An input is were you put a number to get the answer. a output is were you take away the answer to get the correct
8 0
3 years ago
you want to earn $100,000 in your company. your initial earnings for the year started at zero, and your artists music earns you
Setler79 [48]

simply divide the 100,000 by the 1.50 to get the outcome of total streams needed. you would need 66,667 streams in total

8 0
3 years ago
Other questions:
  • What do I needvbbdbdndjdjjdjdjdjd
    14·1 answer
  • The radius of a circle is 1 centimeter. What is the area of a sector bounded by a 90 arc
    5·2 answers
  • Does the blue line appear to be a line of symmetry
    13·1 answer
  • Which of the following are monomials?
    5·1 answer
  • Find f(5) and f(-1) for the equation:
    11·2 answers
  • G = -5r + 13<br> what does g equal to
    15·1 answer
  • Sing for a bicycle race. She recorded the distance he traveled in miles per hour on a graph. Determine the rate of change
    15·1 answer
  • Solve the system of equations using substitution or graphing.
    10·2 answers
  • I will mark u brainlest
    7·2 answers
  • Question:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!