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2 years ago

Mary picked 1/2 bucket of plum and Fred picked2/3 buckets of plum how much more of a bucket did fred pick

1 answer:

3 0

$\stackrel{Fred}{\cfrac{\underline{2}}{3}}~~ - ~~\stackrel{Mary}{\cfrac{1}{2}}\implies \cfrac{(2)\underline{2}~~ - ~~(3)1}{\underset{\textit{using this LCD}}{6}}\implies \cfrac{4-3}{6}\implies \cfrac{1}{6}$

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What two numbers multiply to get 18 and add up to equal 7

LuckyWell [14K]

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3 years ago

The picture is my problem.

Sidana [21]

Answer:

Step-by-step explanation:

Your line has the wrong slope. Its slope is ½, but the equation tells you that the slope is ¾.

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Plot (-4,-1), then draw the line passing through (-4,-1) and (0,2).

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2 years ago

) Set up a double integral for calculating the flux of F=3xi+yj+zk through the part of the surface z=−5x−2y+2 above the triangle

Fynjy0 [20]

The surface (call it $S$ ) is a triangle with vertices at the points

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$x=2,y=0\implies z=-8\implies(2,0,-8)$

Parameterize $S$ by

$\vec s(u,v)=(1-v)(2,0,-8)+v\bigg((1-u)(0,2,-2)+u(0,0,2)\bigg)=(2-2v,2v-2uv,-8+6v+4uv)$

with $0\le u\le1$ and $0\le v\le1$ . Take the normal vector to $S$ to be

$\vec s_v\times\vec s_u=(20v,8v,4v)$

Then the flux of $\vec F$ across $S$ is

$\displaystyle\iint_S\vec F(x,y,z)\cdot\mathrm d\vec S=\int_0^1\int_0^1\vec F(x(u,v),y(u,v),z(u,v))\cdot(\vec s_v\times\vec s_u)\,\mathrm du\,\mathrm dv$

$=\displaystyle\int_0^1\int_0^1(6-6v,2v-2uv,-8+6v+4uv)\cdot(20v,8v,4v)\,\mathrm du\,\mathrm dv$

$=\displaystyle8\int_0^1\int_0^1(11v-10v^2)\,\mathrm du\,\mathrm dv=\boxed{\frac{52}3}$

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3 years ago

Danny answered 70 % questions correctly on his math test. if he answered 35 questions correctly, how man y were on the test

liraira [26]

Answer:

50 questions.

Step-by-step explanation:

70% - 35

100% - $\frac{100}{70}$ × 35 = 50

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3 years ago

Which system is the solution of the graph?<br> HELPPPP

ankoles [38]

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3 years ago