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
Annette [7]
2 years ago
14

What is the value of the expression?

Mathematics
1 answer:
mr Goodwill [35]2 years ago
5 0

Answer: B.792

Step-by-step explanation:

You might be interested in
A 3x4x5 rectangular cuboid (e.g. a brick) is painted blue and cut into 1x1 cubes. what is the expected value for the painted sid
Anton [14]

Answer:

8 cubes are painted on 3 sides

24 cubes are painted on 2 sides

22 cubes are painted on 1 sides

6 cubes are painted on 0 side

E = 3 * 8/60 + 2 * 24/60 + 1 * 22/60 + 0 * 6/60 = 47/30 = 1.567

4 0
3 years ago
What is 9 to the power of -3
larisa86 [58]

Answer: 1/729

.........................

3 0
3 years ago
The rotation of q h j 180° about the origin
IrinaK [193]
Could you please give me more of a description?
7 0
3 years ago
Need some help with this please
saveliy_v [14]
-0.83 for it’s the lowest number
5 0
3 years ago
A helicopter is flying above a town. the local high school is directly to the east of the helicopter at a 20° angle of depressio
guapka [62]
Answer: 4.5 miles

Explanation:

When you draw the situation you find two triangles.

1) Triangle to the east of the helicopter

a) elevation angle from the high school to the helicopter = depression angle from the helicopter to the high school = 20°

b) hypotensue = distance between the high school and the helicopter

c) opposite-leg to angle 20° = heigth of the helicopter

d) adyacent leg to the angle 20° = horizontal distance between the high school and the helicopter = x

2) triangle to the west of the helicopter

a) elevation angle from elementary school to the helicopter = depression angle from helicopter to the elementary school = 62°

b)  distance between the helicopter and the elementary school = hypotenuse

c) opposite-leg to angle 62° = height of the helicopter

d) adyacent-leg to angle 62° = horizontal distance between the elementary school and the helicopter = 5 - x

3) tangent ratios

a) triangle with the helicpoter and the high school

tan 20° = Height / x ⇒ height = x tan 20°

b) triangle with the helicopter and the elementary school

tan 62° = Height / (5 - x) ⇒ height = (5 - x) tan 62°

c) equal the height from both triangles:

x tan 20° = (5 - x) tan 62°

x tan 20° = 5 tan 62° - x tan 62°

x tan 20° + x tan 62° = 5 tan 62°

x  (tan 20° + tan 62°) = 5 tan 62°

⇒ x = 5 tant 62° / ( tan 20° + tan 62°)

⇒ x = 4,19 miles

=> height = x tan 20° = 4,19 tan 20° = 1,525 miles

4) Calculate the hypotenuse of this triangle:

hipotenuese ² = x² + height ² = (4.19)² + (1.525)² = 19.88 miles²

hipotenuse = 4.46 miles

Rounded to the nearest tenth = 4.5 miles

That is the distance between the helicopter and the high school.
5 0
3 years ago
Read 2 more answers
Other questions:
  • A model train is 6 inches the real train is 42 feet what is the scale factor in inches
    15·2 answers
  • What is the sum of 2 4/5 + 1 3/9 =
    14·2 answers
  • What is the answer step by step?
    8·1 answer
  • 1.) One side of a rectangle is 7 inches and the other side is x inches. What values of x will make the perimeter at most 26 inch
    7·1 answer
  • Scale factor from A to B is 4:5.<br> Help
    10·2 answers
  • Convert 576,904,320 using scientific notation
    13·1 answer
  • Hello someone please help me !!
    13·2 answers
  • What is the value of x in the figure?<br> 60°<br> (2x)
    12·2 answers
  • Using the following quadratic formula, which choice is the standard form equation?
    12·1 answer
  • Find the value of x
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!