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3 years ago

9

Hyperloop, a new model of travel, aims to reach a speed of 170 m/s. This is less than the speed of sound. What is the speed of s

ound?
(PLSSS I NEED THE ANSWER TO THIS ASAP TY)
:)

1 answer:

Karolina [17]3 years ago

7 0

Answer:

The Speed of sound is 340 meters per second.

hope this helps!

If you wouldn't mind, would you be willing to give me brainliest?

Thank you and your welcome!

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An animal shelter has 35 puppies get the puppies are 28% of the total dog and cat population how many dogs and cats are there in

Stells [14]

Answer:

125 dogs and cats

Step-by-step explanation:

35 puppies make up 28% of the total dog and cat population

so 28% of the total population is 35

let x = the total population

0.28x = 35

x = 35 / 0.28

x = 125 <=== total dogs and cats

4 0

3 years ago

I need help with finding x<br> ANSWER ASAP!!!!!!!!!!

arsen [322]

The value of x is 36.

Solution:

Given angles of a triangle are 2x°, 2x° and x°.

To find the value of x:

<em>Sum of the all the angles of a triangle = 180°</em>

2x° + 2x° + x° = 180°

5x° = 180°

Divide by 5 on both sides of the equation.

x° = 36°

x = 36

The value of x is 36.

3 0

3 years ago

Solve for x: <br> dx+fx=8-2dx

Rom4ik [11]

Answer:

fx=8-3dx

Step-by-step explanation:

8 0

3 years ago

Point C is the center of the circle. The measure of angle ACB is 3x + 120. Arc AB measures 65x – 4. Find the measure of arc AB.

katovenus [111]

In a circle The measurement of a CENTRAL ANGLE (vertex C) is equal to the measurement of the arc intercepted:

65x-4 = 3x+120 ===> 62x=124 & x= 2, hence the arc = 2

5 0

4 years ago

Read 2 more answers

Need help with Calculus 1 inverse trig functions

lidiya [134]

Answer:

$\displaystyle y'=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{2+2x^2+2x\sqrt{1+x^2}}$

Step-by-step explanation:

<u>The Derivative of a Function</u>

The derivative of f, also known as the instantaneous rate of change, or the slope of the tangent line to the graph of f, can be computed by the definition formula

$\displaystyle f'(x)=\lim\limits_{\Delta x \rightarrow 0}\frac{f(x+\Delta x)-f(x)}{\Delta x}$

There are tables where the derivative of all known functions are provided for an easy calculation of specific functions.

The derivative of the inverse tangent is given as

$\displaystyle (tan^{-1}u)'=\frac{u'}{1+u^2}$

Where u is a function of x as provided:

$y=3tan^{-1}(x+\sqrt{1+x^2})$

If we set

$u=(x+\sqrt{1+x^2})$

Then

$\displaystyle u'=1+\frac{2x}{2\sqrt{1+x^2}}$

$\displaystyle u'=1+\frac{x}{\sqrt{1+x^2}}$

Taking the derivative of y

$y'=3[tan^{-1}(x+\sqrt{1+x^2})]'$

Using the change of variables

$\displaystyle y'=3[tan^{-1}u]'=3\frac{u'}{1+u^2}$

$\displaystyle y'=3\frac{u'}{1+u^2}=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{1+(x+\sqrt{1+x^2})^2}$

Operating

$\displaystyle y'=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{1+x^2+2x\sqrt{1+x^2}+1+x^2}$

$\boxed{\displaystyle y'=3\frac{1+\frac{x}{\sqrt{1+x^2}}}{2+2x^2+2x\sqrt{1+x^2}}}$

8 0

3 years ago