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
hjlf
3 years ago
11

A right triangle ABC is shown 15 А 8 В What is cos A?

Mathematics
1 answer:
a_sh-v [17]3 years ago
8 0
Just put it in a calculator using the cos button and you should get your answer
You might be interested in
What number has 8 hundreds, 2 fewer tens than hundreds and 2 fewer ones than hundreds
Aleonysh [2.5K]
3 hundred 1 fewer hundreds
4 0
3 years ago
Three rays have a common vertex on a line. Write and solve equations to find the measures of m and n
lukranit [14]

Answer:

n = 90 - 62

n = 28º

m = 180 - (62 + n + 27)

m = 180 - (62 + 28 + 27)

m = 180 - 117

m = 63º

5 0
3 years ago
Emma is standing 10 feet away from the base of a tree and tries to measure the angle of elevation to the top. She is unable to g
Vaselesa [24]
The complete question in the attached figure 

step 1
find the tree height for an angle of elevation of 55°<span> 
tan 55</span>°=opposite side angle 55°/adjacent side angle 55°
opposite side angle 55°=the tree height h1
adjacent side angle 55°=10 ft
so
tan 55°=h/10-------> h=10*tan 55°-----> h=14.28 ft

step 2
find the tree height for an angle of elevation of 75° 
tan 75°=opposite side angle 75°/adjacent side angle 75°
opposite side angle 75°=the tree height h2
adjacent side angle 75°=10 ft
so
tan 75°=h2/10-------> h2=10*tan 75°-----> h2=37.32 ft

therefore

<span>the height of the tree is within the range [14.26,37.32]
</span>
Part 1) 4.2 ft

<span>the value is not in the interval [14.26,37.32]
therefore
 it is </span>Not Reasonable

Part 2) 14.7 ft

the value is in the interval [14.26,37.32]
therefore
 it is Reasonable

Part 3) 24.4 ft

the value is in the interval [14.26,37.32]
therefore
 it is Reasonable

Part 4) 33.9 ft

the value is in the interval [14.26,37.32]
therefore
 it is Reasonable

Part 5) 39.1ft

the value is not in the interval [14.26,37.32]
therefore
 it is Not Reasonable

Part 6) 58.7 ft

the value is not in the interval [14.26,37.32]
therefore
 it is Not Reasonable

4 0
3 years ago
Four lab rats stage a daring escape in broad daylight, eventually establishing a colony behind the
Andrei [34K]

Answer:

9 months.

Step-by-step explanation:

use a calculator

4 0
3 years ago
Read 2 more answers
What is the volume of a cylinder with a radius of 3 inches and a height of 5 inches ? Rounded to the nearest tenth .
Arisa [49]

Answer:

141.4

Step-by-step explanation:

Plug the numbers into the formula, V=πr2h, you know that your radius is 3 and your height is 5, so you get V=π(3)2(5), you just then put it in the calculator. You get 141.37, round to the nearest tenth 141.4

8 0
2 years ago
Read 2 more answers
Other questions:
  • What’s 5.5454 rounded to 2 decimal place
    13·1 answer
  • A psychology professor assigns letter grades on a test according to the following scheme. A: Top 9% of scores B: Scores below th
    11·1 answer
  • I need help what is -5/7+1/5
    8·2 answers
  • The United States post office has two different priority mail flute rate boxes. Which box has the greater volume? Justify your a
    9·1 answer
  • Can someone please help me?
    5·2 answers
  • two fractions have a common denominator of 8. which of the following could be two fractions? a)1/2 and 2/3 b) 1/4 and 1/2 c)3/4
    9·2 answers
  • 1 and 2 thirds + 1 and a half ?
    9·2 answers
  • Signs for science project displays are cut from pieces of poster board that measure 1 yard on each side. Each sign is LaTeX: \fr
    12·1 answer
  • Beverly is painting a mural on a 1-square-meter section of a wall. She has completed a rectangular part of the mural that's is 5
    8·2 answers
  • What is the greatest common factor (GCF) of 54 and 45?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!