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4 years ago

Help i forgot to do this again plz halp

Mathematics

2 answers:

Stells [14]4 years ago

7 0

What do u need "halp" with? Msg me.

Sever21 [200]4 years ago

6 0

You forgot to do what? please include the question

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(3x+4)^2=14 what are the solutions?

kherson [118]

$\bf (3x+4)^2=14\implies \sqrt{(3x+4)^2}=\pm\sqrt{14}\implies 3x+4=\pm\sqrt{14}
\\\\\\
3x=\pm \sqrt{14}-4\implies x=\cfrac{\pm \sqrt{14}-4}{3}\implies x=
\begin{cases}
\cfrac{\sqrt{14}-4}{3}\\\\
\cfrac{- \sqrt{14}-4}{3}
\end{cases}$

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3 years ago

Find the solution to the differential equation dx/dy+y/3=0 subject to the initial conditions y(0)=12.

ycow [4]

$\dfrac{\mathrm dx}{\mathrm dy}+\dfrac y3=0\iff\mathrm dx=-\dfrac y3\,\mathrm dy$
$\implies\displaystyle\int\mathrm dx=-\frac13\int\mathrm y\,dy$
$\implies x=-\dfrac16y^2+C$

Given that $y(0)=12$ , we have

$0=-\dfrac16(12)^2+C\implies C=24$

So the particular solution to the initial value problem is

$x=-\dfrac16y^2+24\iff y^2=144-6x$

8 0

3 years ago

It takes a bicyclist a total of 12 hours to travel from his house to the park and back home. If he travels 26 mph on the way to

kiruha [24]

I think you would subtract 26 by 13 = 18
Then You would divide it by two sorry if wrong

3 0

4 years ago

What does absolute value do?

soldier1979 [14.2K]

Answer:

It changes negative numbers to positive.

Step-by-step explanation:

Absolute value is the measure of a numbers distance from 0. You can't have negative distance, so absolute value of negative numbers is positive and absolute value of positive numbers is always positive. The absolute values of 5 and -5 are both 5 because they are both 5 units away from 0 on a number line, just in opposite directions.

4 0

3 years ago

Find The volume of each cone. round to the nearest tenth.

padilas [110]

Answer:

V = 942mm^3

Step-by-step explanation:

To find the volume of a cone you have to use this equation:

$V = (\pi r^{2}h)/3$

V = [(3.14)(10^2)(9)] /3

V = [(3.14)(100)(9)] /3

V = [2826] /3

V = 942mm^3

8 0

3 years ago