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balandron [24]
3 years ago
6

What is a mathematic expresion for 43 more than d

Mathematics
1 answer:
myrzilka [38]3 years ago
6 0
More than means plus or add

43+d is answer
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I’m so confused?? what’s the question?
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The probability of having a winning raffle ticket is 20%. If you bought 50 tickets, how many winning tickets should you expect t
Usimov [2.4K]
\frac{20}{100} = \frac{x}{50}
Let's solve for x:
100x=1000
Divide by 100
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You should expect to win 10 times.
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Can someone help me on this
Vladimir79 [104]

Answer:

7%

Step-by-step explanation:

8 0
4 years ago
Consider the following region R and the vector field F. a. Compute the​ two-dimensional curl of the vector field. b. Evaluate bo
Shalnov [3]

Looks like we're given

\vec F(x,y)=\langle-x,-y\rangle

which in three dimensions could be expressed as

\vec F(x,y)=\langle-x,-y,0\rangle

and this has curl

\mathrm{curl}\vec F=\langle0_y-(-y)_z,-(0_x-(-x)_z),(-y)_x-(-x)_y\rangle=\langle0,0,0\rangle

which confirms the two-dimensional curl is 0.

It also looks like the region R is the disk x^2+y^2\le5. Green's theorem says the integral of \vec F along the boundary of R is equal to the integral of the two-dimensional curl of \vec F over the interior of R:

\displaystyle\int_{\partial R}\vec F\cdot\mathrm d\vec r=\iint_R\mathrm{curl}\vec F\,\mathrm dA

which we know to be 0, since the curl itself is 0. To verify this, we can parameterize the boundary of R by

\vec r(t)=\langle\sqrt5\cos t,\sqrt5\sin t\rangle\implies\vec r'(t)=\langle-\sqrt5\sin t,\sqrt5\cos t\rangle

\implies\mathrm d\vec r=\vec r'(t)\,\mathrm dt=\sqrt5\langle-\sin t,\cos t\rangle\,\mathrm dt

with 0\le t\le2\pi. Then

\displaystyle\int_{\partial R}\vec F\cdot\mathrm d\vec r=\int_0^{2\pi}\langle-\sqrt5\cos t,-\sqrt5\sin t\rangle\cdot\langle-\sqrt5\sin t,\sqrt5\cos t\rangle\,\mathrm dt

=\displaystyle5\int_0^{2\pi}(\sin t\cos t-\sin t\cos t)\,\mathrm dt=0

7 0
3 years ago
Which sign makes the statement true? 93/100 ? 2/5
polet [3.4K]

Answer:

>.

Step-by-step explanation:

93/100 = 0.93

2/5 = 0.4,  so:

93/100 > 2/5.

7 0
3 years ago
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