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4 years ago

What is the pythagorean therum

2 answers:

4 0

A^2 + B^2 = C^2

The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c).

Nimfa-mama [501]4 years ago

3 0

The Pythagorean theorem is a^2 + b^2 = c^2. You use it when solving for the sides of a triangle.

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Find the exact value of the expressions

timama [110]

Answer:

here is your correct answer and listen question no four option are incorrect

4 0

3 years ago

Find dy/dx when y = Ln (sinh 2x). A. 2 cosh 2x B. 2 sech 2x C. 2 coth 2x D. 2 csch 2x

givi [52]

The function given is a composite function. Let's work from the outside in:
$y=(ln(sinh(2x)))$

First step:
$\frac{d}{dx}[y]= \frac{d}{dx}[ln(sinh(2x))]$

Now, let's work it out:
$\frac{dy}{dx} = \frac{1}{sinh(2x) } * \frac{d}{dx}[sinh(2x)]$

Next step:
$\frac{dy}{dx} = \frac{1}{sinh(2x) } * cosh(2x) * \frac{d}{dx}[2x]$

Next step:
$\frac{dy}{dx} = \frac{1}{sinh(2x) } * cosh(2x) *2$

Simplify:
$\frac{dy}{dx} = \frac{2cosh(2x)}{sinh(2x) }$

Simplify further:
$\frac{dy}{dx} = 2 (\frac{cosh(2x)}{sinh(2x)})$

Remember that:
${\frac{cosh(x)}{sinh(x)} = coth(x)$

So, your final answer is:
$\boxed{ \frac{dy}{dx} = 2coth(2x) }$

So, your answer is C. Hope I could help you!

8 0

4 years ago

Write thirty divided by five 3 ways

viktelen [127]

Answer:

30 divided by 5

$\frac{30}{5}$

5⟌30

Hope this helps!

7 0

4 years ago

Urgent!!!! Will give brainliest!

Mumz [18]

Answer:

option 1

Step-by-step explanation:

- we can easily rule out option 2, since 1/25 would not come out to $25 each day.

-we can rule out options 3 and 4 since it was not $75 each day and not $1 for 150 days.

<em>-we can conclude that the correct answer is option 1, 25/1, because if we divide that, we get $25, the amount each day spent.</em>

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hope this helps :)

8 0

3 years ago

Read 2 more answers

Consider the fuction f(x)=x^4-3x^3-7x^2+15x+18

Andreyy89

When the equation is in the 4th degree, it is called a quartic equation. Solving the roots of a quartic solution is very tedious and lengthy. It could get messy because you would use other variables. If you want to know how, I hope this link could help you: http://mathforum.org/dr.math/faq/faq.cubic.equations.html

I would still give answers but these are determined with the help of tools like scientific calculator and MS Excel.

Part A. This question is very generic. There are many ways of finding the roots. Actually, part b, c and d are all solutions of this section.

Part B. This is how synthetic division works. The divisor is x-3=0 or x=3. Place it on the left side with a corner barrier. Then, place all the coefficients of the quartic equation in order on the right side. This is for the first row. Then, bring down the first coefficient 1 under the horizontal bar. Multiply 1 to the 3 on the left side. The product is 3 which placed under the second coefficient. When you add them, the sum is 0. Multiply this again with 3 on the left side and place this under the next coefficient. The pattern goes on and on.

3| 1 -3 -7 15 18
3 0 -21 -18
----------------------------------
1 0 -7 -6 0

When the last term is 0, it means that there is no remainder. Thus, x-3 is a factor.

Part C. It is quite challenging to factor a quartic equation. As previously mentioned, it can be messy. Just see the link to see the step-by-step procedure. Another alternative to this is by graphical under letter d.

Part D. Just assign values to x, substitute to the equation to get y. Then, plot x against y. The graph would look like that in the picture. The x-intercepts are the roots of the equation. From the picture, we can see that they are x=-1, x=-2 and x=3. The other root is a complex or imaginary.

5 0

3 years ago