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3 years ago

PLS HELP IM TIMED

Mathematics

1 answer:

Olin [163]3 years ago

7 0

Its A
Bro it’s going downward

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Solve for x. 2x + 5 = x - 8

Gemiola [76]

2x+5=x-8
-x on both sides
x+5=8
-5 on both sides
x=-13

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4 years ago

What is x^2=7x number 9

ipn [44]

Let's do this in steps, show your work!

#1. We need to move all terms to one side.

x^2 - 7x = 0

#2. Then factor out the common term x.

x(x - 7) = 0.

#3. Simplify to get..

x = 0, 7.

If you need help with any other question let me know.

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3 years ago

What's the right answer?

Masja [62]

Given:

$sinh(f(x))=1+x^2$

To find:

The value of f'(x).

Solution:

Formulae used:

$\dfrac{d}{dx}sinh(x)=cosh(x)$

$\dfrac{d}{dx}x^n=nx^{n-1}$

$\dfrac{d}{dx}C=0$

Chain rule:

$\dfrac{d}{dx}[f(g(x))]=f'(g(x))g'(x)$

Where C is an arbitrary constant.

We have,

$sinh(f(x))=1+x^2$

Differentiate with respect to x.

$cosh(f(x))f'(x)=0+2x$

$f'(x)=\dfrac{2x}{cosh(f(x))}$

Therefore, the required values is $f'(x)=\dfrac{2x}{cosh(f(x))}$ .

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3 years ago

Is 12.14 bigger than 12.44

RideAnS [48]

No 12.14 is not bigger than 12.44

12.14 < 12.44

5 0

4 years ago

Read 2 more answers

A plane flying horizontally at an altitude of 3 mi and a speed of 440 mi/h passes directly over a radar station. find the rate a

Licemer1 [7]

The distance is increasing at a rate that is the speed of the plane multiplied by the cosine of the angle between its flight path and the direct line to the radar station. That cosine is 4/√(3²+4²) = 4/5, so the distance is increasing at
440 mi/h × 4/5 = 352 mi/h

8 0

3 years ago