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
andreev551 [17]
3 years ago
15

If a road has a grade of 30°, this means that it's angle of elevation is 30°. If you travel 1.5 miles on this road, how much ele

vation have you gained in feet (5280 ft = 1 mile)? Round to the nearest foot.
Mathematics
1 answer:
irina [24]3 years ago
3 0

Answer:

3960 feet.

Step-by-step explanation:

sin 30 = elevation / hypotenuse

sin 30 = e / 1.5

e = 1.5 * sin 30

e = 1.5 * 0.5 = 0.75 miles

= 0.75 * 5280

= 3960 feet.

You might be interested in
Divide 2/8 by 9/18 . Input your answer as a reduced fraction.\
Katen [24]

\large\displaystyle\text{$\begin{gathered}\sf \boldsymbol{\sf{\frac{2}{8}\div\frac{9}{18}   }} \end{gathered}$}

\large\displaystyle\text{$\begin{gathered}\sf Simplify \ \frac{2}{8} \ to \ \frac{1}{4}. \end{gathered}$}

\large\displaystyle\text{$\begin{gathered}\sf \boldsymbol{\sf{\frac{1}{4}\div\frac{18}{9}   }} \end{gathered}$}

\large\displaystyle\text{$\begin{gathered}\sf Use \ this \ rule: a\div \frac{b}{c}=a\times \frac{c}{b}a \end{gathered}$}

\large\displaystyle\text{$\begin{gathered}\sf \boldsymbol{\sf{\frac{1}{4}\times\frac{18}{9}   }} \end{gathered}$}

\large\displaystyle\text{$\begin{gathered}\sf Use \ this \ rule: \frac{a}{b} \times \frac{c}d{}=\frac{ac}{bd}. \end{gathered}$}

\large\displaystyle\text{$\begin{gathered}\sf \boldsymbol{\sf{\frac{1\times18}{4\times9} \ \to \ \ Multiply  }} \end{gathered}$}

\large\displaystyle\text{$\begin{gathered}\sf \boldsymbol{\sf{ \frac{18}{36}= }}\boxed{\large\displaystyle\text{$\begin{gathered}\sf \boldsymbol{\sf{\frac{1}{2}  }} \end{gathered}$}} \end{gathered}$}

8 0
2 years ago
Read 2 more answers
Factor 64v^3 + 192v^2 -56v - 168​
Kaylis [27]

Hello from MrBillDoesMath!

Answer:

8(v+3) ( -1/2 (sqrt(14) - 4 v) (4 v + sqrt(14)) )


Discussion:

Given

64v^3 + 192v^2 - 56 v - 168      

Factor 64v^2 from the first two terms. Factor 56 from the last two terms:

64v^2(v+3) - 56(v  + 3)     => factor (v+3) from both terms

(v+3) (64v^2 - 56)             => factor 8 from both terms in the right ()

8(v+3)(8v^2-7)                   => factor 8y^2-7

8(v+3) ( -1/2 (sqrt(14) - 4 v) (4 v + sqrt(14)) )



Thank you,

MrB

4 0
3 years ago
Translate the following sentences into a equation, then solve the equation.
Rainbow [258]

Answer:

Step-by-step explanation:

Let the two numbers be x and y

x = y - 5......(1)

2y = 3x.......(2)

Putting (1) into (2)

2y = 3(y - 5)

2y = 3y - 15

Collecting like terms

2y - 3y = -15

-y = -15

y = 15

Putting y = 15 in (1)

x = y - 5

x = 15 - 5

x = 60

6 0
3 years ago
Y={1 if x is rational 0 if x is irrational<br><br> How would you describe it's graph?
Setler [38]

The set of rational plus irrational numbers equals ALL REAL NUMBERS


Yes, it is a function because every x-value maps into only one y-value. In other words, because rational and irrational are mutually exclusive, x does not map into both 0 and 1


Domain is all real numbers.


Range is 0 or 1


y-intercept happens when x=0, so that is a rational number and y = 1


There are an infinite number of x-intercepts. Every irrational number is an x-intercept


Neither even or odd because it is not symmetric with either the y-axis or the origin.


The graph jumps between y=0 and y=1


Hope that helps Answer:


Step-by-step explanation:


6 0
4 years ago
15+25/5x7=<br><br> 15+25divide5x7=
jenyasd209 [6]
Its either 1.14 or 0.87 Hope this helps!
7 0
3 years ago
Read 2 more answers
Other questions:
  • A ticket cost $4.80 the new ticket price will be 1.25 times the old price what will the new ticket be
    10·1 answer
  • what is the area of an isosceles trapezoid, if the lengths of its bases are 16cm and 30cm and the diagonals are perpendicular to
    5·1 answer
  • 14+ х = 3х2<br> What is the answer?
    15·2 answers
  • If you first climb up 3 rungs then down 5 rungs and then up 10 rungs to get onto The top rung how many rungs are on the ladder?
    12·1 answer
  • This is probably easy I’m just slow in the head but plz help!Follow me on Instagram:itz_me_clarita
    13·2 answers
  • you order two servings of Pancakes in a fruit cup. The cost of the fruit cup is $1.50. You leave a 15% tip. Your total bill is $
    15·1 answer
  • If the pictured triangles are congruent what reason can be given
    10·1 answer
  • Which math expression means "the product of 16 and 26"?<br> 16 +26<br> O 16.26<br> 15 - 26<br> 26-16
    7·1 answer
  • Solve. Write the fraction in simplest form.
    11·1 answer
  • What is 6.9 times 10^-2 in standard form? thanks :)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!