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
sp2606 [1]
3 years ago
13

John left his house in Irvine at 8:20 AM to drive to a meeting in Los Angeles, 45 miles away. He arrived at the meeting at 9:50

AM. At 5:30 PM, he left the meeting and drove home. He arrived home at 7:45 PM.
Mathematics
1 answer:
snow_lady [41]3 years ago
7 0
What’s the question?
You might be interested in
Which of the following is an irrational number?
11Alexandr11 [23.1K]
The correct answer is D <span>9.87 times 10 to the 4</span>
3 0
3 years ago
Read 2 more answers
What is (-5/8) x (2/3)?
frozen [14]
-5/12 would be the answer
3 0
3 years ago
Read 2 more answers
Write each expression as an algebraic​ (nontrigonometric) expression in​ u, u &gt; 0.
max2010maxim [7]

Answer:

\displaystyle \sin\left(2\sec^{-1}\left(\frac{u}{10}\right)\right)=\frac{20\sqrt{u^2-100}}{u^2}\text{ where } u>0

Step-by-step explanation:

We want to write the trignometric expression:

\displaystyle \sin\left(2\sec^{-1}\left(\frac{u}{10}\right)\right)\text{ where } u>0

As an algebraic equation.

First, we can focus on the inner expression. Let θ equal the expression:

\displaystyle \theta=\sec^{-1}\left(\frac{u}{10}\right)

Take the secant of both sides:

\displaystyle \sec(\theta)=\frac{u}{10}

Since secant is the ratio of the hypotenuse side to the adjacent side, this means that the opposite side is:

\displaystyle o=\sqrt{u^2-10^2}=\sqrt{u^2-100}

By substitutition:

\displaystyle= \sin(2\theta)

Using an double-angle identity:

=2\sin(\theta)\cos(\theta)

We know that the opposite side is √(u² -100), the adjacent side is 10, and the hypotenuse is u. Therefore:

\displaystyle =2\left(\frac{\sqrt{u^2-100}}{u}\right)\left(\frac{10}{u}\right)

Simplify. Therefore:

\displaystyle \sin\left(2\sec^{-1}\left(\frac{u}{10}\right)\right)=\frac{20\sqrt{u^2-100}}{u^2}\text{ where } u>0

4 0
3 years ago
5. What do you notice about the numbers in the last two columns of the table?<br> Answer?
Lostsunrise [7]
Photo????? i need more context:)
8 0
3 years ago
"What temperature is 23 degrees less than 8 degrees Fahrenheit?
Bumek [7]
-15 degrees Fahrenheit
7 0
4 years ago
Read 2 more answers
Other questions:
  • what are the steps required to determine the equation of a quadratic function given its zeros and a point?​
    8·1 answer
  • What is this in radical form?<br><img src="https://tex.z-dn.net/?f=%20%5Csin%282%5Cpi%29%20" id="TexFormula1" title=" \sin(2\pi)
    8·1 answer
  • I don’t know how to do this.
    15·1 answer
  • What is 6 x2 simplified?
    8·2 answers
  • Krystal's school is selling tickets to annual talent show.On the first day of the ticket sales the school sold 4 senior citizen
    13·1 answer
  • Help meh or i will die :P
    12·2 answers
  • The width w of a rectangular swimming pool is x+5 the area a of the pool is x^2+4-5
    14·2 answers
  • HELP I NEED HELP ASAP
    7·2 answers
  • 25% of what number is 20?​
    10·2 answers
  • If 7 4/5 of the total came to 109,200, what is the total?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!