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
Makovka662 [10]
3 years ago
10

Solve for e. T=e29 ​​ e=±3T√T e=±3T e=±3T√ ​ e=±9T√ ​

Mathematics
1 answer:
Anon25 [30]3 years ago
4 0

Answer:

option (3) is correct.

e= \pm 3\sqrt{T}

Step-by-step explanation:

Given T=\frac{e^2}{9}

We have to solve for e.

Consider the given statement,

T=\frac{e^2}{9}

Cross multiply, we get,

\Rightarrow 9T={e^2}

Taking square root both sides , we get,

\Rightarrow \sqrt{9T}=e

We know square root of 9 is 3.

\Rightarrow \pm 3\sqrt{T}=e

Thus, option (3) is correct.

e= \pm 3\sqrt{T}

You might be interested in
Person 1 writes internal operating procedures 3 times faster than Person 2. Most of the procedures took 30 minutes each to creat
ad-work [718]

Person 1 takes 3 hour 10 minutes to complete 9 procedures

<em><u>Solution:</u></em>

From given question,

Person 2 takes 30 minutes per procedure

Person 1 writes internal operating procedures 3 times faster than Person 2

So we get, Person 1 takes 3 times faster than Person 2

Person 1 takes 10 minutes per procedure

But two of the procedures for Person 1 took an hour each

So person 1 takes 60 minutes each for two of procedures ( since 1 hour = 60 minutes )

<em><u>Calculate how long it took Person 1 to complete 9 procedures:</u></em>

So for first 7 procedures person 1 would take 10 minutes per procedure and for last two procedures person 1 would take 60 minutes per procedure

time $=7$ procedures $\times \frac{10 \text { minutes }}{1 \text { procedure }}+2$ procedure $\times \frac{60 \text { minutes }}{1 \text { procedure }}$

time=70 minutes +120minutes\\\\time=190minutes

We know that,

1 hour = 60 minutes

Therefore,

190 minutes = 60 minutes + 60 minutes + 60 minutes + 10 minutes

190 minutes = 1 hour + 1 hour + 1 hour + 10 minutes = 3 hour 10 minutes

Therefore Person 1 takes 3 hour 10 minutes to complete 9 procedures

7 0
3 years ago
A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed, t
7nadin3 [17]

To solve this problem, we can use the tan function to find for the distances covered.

tan θ = o / a

Where,

θ = angle = 90° - angle of depression

o = side opposite to the angle = distance of boat from lighthouse

a = side adjacent to the angle = height of lighthouse = 200 ft

When the angle of depression is 16°18', the initial distance from the lighthouse is:

o = 200 tan (90° - 16°18')

o = 683.95 ft

When the angle of depression is 48°51', the final distance from the lighthouse is:

o = 200 tan (90° - 48°51')

o = 174.78 ft

 

Therefore the total distance the boat travelled is:

d = 683.95 ft - 174.78 ft

<span>d = 509.17 ft</span>

4 0
3 years ago
The function f(x)=Acosh(Cx)+Bsinh(Cx). I need help determining the value of constant C&gt;0 when the second derivative f''(x)=25
Rus_ich [418]

Answer:

C = 5.

Step-by-step explanation:

First, you need to remember that:

For the function:

h(x) = Sinh(k*x)

We have:

h'(x) = k*Cosh(k*x)

and for the Cosh function:

g(x) = Cosh(k*x)

g'(x) = k*Cosh(k*x).

Now let's go to our problem:

We have f(x) = A*cosh(C*x) + B*Sinh(C*x)

We want to find the value of C such that:

f''(x) = 25*f(x)

So let's derive f(x):

f'(x) = A*C*Sinh(C*x) + B*C*Cosh(C*x)

and again:

f''(x) = A*C*C*Cosh(C*x) + B*C*C*Sinh(C*x)

f''(x) = C^2*(A*cosh(C*x) + B*Sinh(C*x)) = C^2*f(x)

And we wanted to get:

f''(x) = 25*f(x) = C^2*f(x)

then:

25 = C^2

√25 = C

And because we know that C > 0, we take the positive solution of the square root, then:

C = 5

6 0
3 years ago
3x+14=11 <br> a. 4<br> b.-1<br> c. 3
EleoNora [17]
For this question, you would go; 11 - 14 = -3 Then; -3 ÷ 3 = -1 The answer is b) -1 :)
6 0
3 years ago
3 in the power of ten word form
Ludmilka [50]

3 in the power of ten means "10^3."

10^3

How to solve exponents is to multiply the number as many times as it's exponent. So in this case you will have to multiply ten, three times.

10\times10\times10=1000

Which would mean that....

10^3=1000

The answer is 10^3.

Hope this helps.

3 0
4 years ago
Other questions:
  • The triangle shown below has an area of 22 units squared. The height is 4 units. Find the base of the triangle.
    6·2 answers
  • Write the function in vertex form. <br><br> y = 2x² + x
    9·2 answers
  • What is the mean median and mode of 99, 69, 96, 69, 78. Round to the nearest tenth if necessary
    15·1 answer
  • What was the first year that the amusement park had more than 12 million visitors?
    12·1 answer
  • Find the slope and y-intrcept of <br><br>y=5/3x -4 ​
    12·1 answer
  • Given a graph of a function, explain how to find the rate of change and how to determine whether it is a linear or nonlinear fun
    15·2 answers
  • What is the volume of a cylinder with a radius of 9 inches and a height of 2 inches​
    13·1 answer
  • Omlll, I'm actually stuck rn xD If anyone can help,i'd appreciate it so much!! Tyssmm!!!!!
    9·2 answers
  • Simplify -5 1/4 - (-7 1/2) please<br> also ignore my tabs pls
    10·1 answer
  • The Lin family has a fish tank with different colors of fish. There are 7 blue fish, 4 green fish, and 4 yellow fish. Part A Dra
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!