3 years ago

Plz help ill give you brainlist

1 answer:

7 0

When negative meets negative, it should be positive

you will get +5r when you multiply -5 with -r

-5 (2 - r) = 30
-10 + 5r = 30
5r = 40
r = 8

You might be interested in

Hunter took a test With 28 questions. If he answered of 2/7 of the questions correctly, how many did he

Vinvika [58]

Answer:20

Step-by-step explanation: If you have a calculator its easy

3 0

3 years ago

Read 2 more answers

Which of the following is a right scalene triangle

svp [43]

Answer:

The second one is a scalene triangle

5 0

3 years ago

JUST SOLVE 6. SHOW ALL WORK FOR BRAINLIEST ANSWER 20 points!!!! PLZ SOLVE NOW

maksim [4K]

Divide the 10 cent coin by the 50 cent coin :)

5 0

4 years ago

Use the divergence theorem to calculate the surface integral ??s f · ds; that is, calculate the flux of f across s. f(x,y,z = ex

Kamila [148]

$\mathbf f(x,y,z)=e^x\sin y\,\mathbf i+e^x\cos y\,\mathbf j+yz^2\,\mathbf k$

By the divergence theorem, the surface integral can be evaluated by computing the triple integral

$\displaystyle\iint_Sf(x,y,z)\,\mathrm dS=\iiint_V\nabla\cdot\mathbf f(x,y,z)\,\mathrm dV$
$=\displaystyle\iiint_V\left(\dfrac{\mathrm d\mathbf f}{\mathrm dx}+\dfrac{\mathrm d\mathbf f}{\mathrm dy}+\dfrac{\mathrm d\mathbf f}{\mathrm dz}\right)\,\mathrm dV$
$=\displaystyle\int_{x=0}^{x=4}\int_{y=0}^{y=3}\int_{z=0}^{z=4}2yz\,\mathrm dz\,\mathrm dy\,\mathrm dx$
$=72$

7 0

3 years ago

Will mark brainliest please help

Sergeeva-Olga [200]

Answer:

445

Step-by-step explanation:

8 0

3 years ago