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
olga2289 [7]
3 years ago
15

Whats his mistake and the correct awnser

Mathematics
1 answer:
HACTEHA [7]3 years ago
8 0

Answer:

θ ≈ 35.7°

Step-by-step explanation:

His mistake was in using the wrong trig. ratio

Instead of using cosine he should have used the sine ratio

sinθ = \frac{opposite}{hypotenuse} = \frac{7}{12} , then

θ = sin^{-1} (\frac{7}{12} ) ≈ 35.7° ( to the nearest tenth )

You might be interested in
Write two subtraction equations to show how to find 15 - 7
pantera1 [17]
15-7=8         
i hope it helps
5 0
4 years ago
Read 2 more answers
Geometry: solve by factoring
Advocard [28]
5) x = 5,3

7) p = -4,-8
5 0
4 years ago
Find what percent 591 is of 2364
kati45 [8]
To find the percent you would divide 591 by 2364 
591/2364=.25
.25*100 = 25% 
Does that make sense?
3 0
3 years ago
Read 2 more answers
What is the measure of arc BC?<br> 130<br> 65<br> 32.5<br> 180
ale4655 [162]

Answer:

The measure of arc BC is 130° ⇒ 1st answer

Step-by-step explanation:

In a circle:

  • The measure of an arc is equal to the measure of the central angle subtended by it
  • The measure of an arc is equal to double the measure of the inscribed angle subtended by it
  • Central angles subtended by the same arc are equal in measures
  • Inscribed angles subtended by the same arc are equal in measures
  • The measure of central angle is double the measure of the inscribed angle which subtended by its arc

∵ Angle BDC is an inscribed angle

∵ It is subtended by the arc BC

- By using the 2nd fact above

∴ The measure of arc BC = 2 × the measure of ∠BDC

∵ The measure of angle BDC is 65 degree

∴ The measure of arc BC = 2 × 65°

∴ The measure of arc BC = 130°

The measure of arc BC is 130°

7 0
4 years ago
Can someone help me? please
Black_prince [1.1K]

Answer:

I can but not willing right now so sorry

4 0
3 years ago
Other questions:
  • Simplify. (2x^2 + 7x + 10) - (x^2 + 2x - 9)
    9·1 answer
  • - 1/2 (x+2) + 1 1/2x = 3
    7·1 answer
  • Three cubes of the same metal, whose edges are 6, 8, 10 cm are meltedand formed into a single cube. Find the diagonal of the sin
    7·1 answer
  • Find the area of a rectangle with length (2x + 3) and width (x - 4).
    9·1 answer
  • Work out 72 cents as a percentage of 83 cents.
    9·2 answers
  • Identify the segment bisector of RS. Then find RS. I need help
    8·1 answer
  • Find the missing measures.
    9·1 answer
  • Find each x-value at which f is discontinuous and for each x-value, determine whether f is continuous from the right, or from th
    7·1 answer
  • Ann is participating in a 4-day cross country biking challenge. She biked for 65, 69, and 45 miles on the first three days. How
    15·1 answer
  • Quadrilateral ABCD is similiar to quadrilateral EFGH. The lengths of the three longest sides in quadrilateral ABCD are 60 feet,
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!