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
Archy [21]
3 years ago
7

Need help please math questions # 12 and 14

Mathematics
2 answers:
pshichka [43]3 years ago
5 0

Answer:

\large \boxed{\text{ Q12. 0.85 m; Q14. 24 750 ft}}

Step-by-step explanation:

Question 12.

If Jeff is using a right triangle, the third angle of the triangle is 45°.

They have an isosceles triangle, so the distance from the foot of the elevator to the base of the cliff is x ft.

We can use Pythagoras' Theorem:

The square on the hypotenuse is equal to the sum of the squares of the other two sides.

d² = x² + x²

1.2² = 2x²

1.44 = 2x²

x² = 0.72

x ≈ 0.85 m

Question 14

Hugo's angle of descent is the same as the angle of elevation from the point of touchdown.

The glidepath distance is the horizontal distance from the  point where they start the descent to the point of touchdown (side c in the diagram).

Thus we have a right triangle in which ∠B = 22° and b = 10 000 ft.

\begin{array}{rcl}\tan B & = & \dfrac{b}{c}\\\\\tan 22^{\circ} & = & \dfrac{\text{10 000 ft}}{c}\\\\0.4040 & = & \dfrac{\text{10 000 ft}}{c}\\\\c & = & \dfrac{\text{10 000 ft}}{0.4040}\\\\ & = &\text{24 750 ft}\\\end{array}\\\text{The length of Hugo's glide path is $\large \boxed{\textbf{24 750 ft}}$}

icang [17]3 years ago
3 0

Answer:

Step-by-step explanation:

You might be interested in
Solve for t 16−2t=t+9+4t
Brums [2.3K]

Answer:

Step-by-step explanation:

16-2t=t+9+4t  

7=7t  
t=1

8 0
2 years ago
Help with this one!!!<br><br><br> Show steps please:)
Ymorist [56]
<h3>Answer:  7.20</h3>

Work Shown:

18% = 18/100 = 0.18

18% of 40 = 0.18*40 = 7.20

4 0
3 years ago
Read 2 more answers
Please help! urgent! how do I put this in slope- intercept form?? *Y=MX+B*
kap26 [50]

3x-5y=10\\\\&#10;5y=3x-10\\\\&#10;y=\dfrac{3}{5}x-2

3 0
3 years ago
Solve for r.<br> 7(r + 1) = 20.3
docker41 [41]

Answer:

r = 1.9

Step-by-step explanation:

7r + 7 = 20.3

<u>     - 7      - 7  </u>

7r = 13.3

divide by 7

r = 1.9

4 0
2 years ago
Read 2 more answers
The average commute times for employees of a large company is 23 minutes.
Travka [436]

Answer:

x¯ = 26 min

μ = 23 min

Step-by-step explanation:

I took the test and these were the answers.

4 0
3 years ago
Other questions:
  • Use rhombus TQRS below for questions<br> what is the value of x?<br> what is the value of y?
    5·1 answer
  • The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. Find the number.
    10·1 answer
  • Ross calculated the missing side length of one of these triangles using the Pythagorean Theorem. Which triangle was it? Four tri
    14·2 answers
  • A balloon rising at a constant rate will rise farther in 60 seconds than in 45 seconds. Which inequality shows this in function
    6·1 answer
  • In a plane, line b is parallel to line f, line f Is parallel to line g, and line h is perpendicular to line b. Which of the foll
    15·1 answer
  • Consider the functions f(x) = 5x – 2, g(x) = 5x² + 2 and r(x) = –2x + 4.
    13·2 answers
  • 2.
    6·1 answer
  • An amount of money that is deposited or borrowed that earns or is charged interest is called a what?
    15·1 answer
  • Help, i dont know any of this lol
    9·1 answer
  • Can someone help what is the unknown number in sequence 2 in the chart
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!