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bulgar [2K]
3 years ago
10

If 2,000 people voted in the election how many were from 50 to 64 years old?

Mathematics
1 answer:
prohojiy [21]3 years ago
8 0
2000*35%=700
700 people voted at ages 50 to 64
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Find the position vector R(t) and velocity vector V(t), given the acceleration A(t) and initial position and velocity vectors R(
valentina_108 [34]

The fundamental theorem of calculus tells us that

\vec v(t)=\vec v(0)+\displaystyle\int_0^t\vec a(u)\,\mathrm du

\vec r(t)=\vec r(0)+\displaystyle\int_0^t\vec v(u)\,\mathrm du

So we have

\vec v(t)=(\vec\imath-\vec\jmath-2\,\vec k)+\displaystyle\int_0^t(u^2\,\vec\imath-2u^{1/2}\,\vec\jmath+e^{3u}\,\vec k)\,\mathrm du

\vec v(t)=(\vec\imath-\vec\jmath-2\,\vec k)+\left(\dfrac{u^3}3\,\vec\imath-\dfrac{4u^{3/2}}3\,\vec\jmath+\dfrac{e^{3u}}3\,\vec k\right)\bigg|_0^t

\vec v(t)=\dfrac{t^3+3}3\,\vec\imath-\dfrac{4t^{3/2}+3}3\,\vec\jmath+\dfrac{e^{3t}-7}3\,\vec k

and

\vec r(t)=(2\,\vec\imath+\vec\jmath-\vec k)+\displaystyle\int_0^t\left(\frac{u^3+3}3\,\vec\imath-\frac{4u^{3/2}+3}3\,\vec\jmath+\frac{e^{3u}-7}3\right)\,\mathrm du

\vec r(t)=(2\,\vec\imath+\vec\jmath-\vec k)+\left(\dfrac{u^3+12u}{12}\,\vec\imath-\dfrac{8u^{5/2}+15u}{15}\,\vec\jmath+\dfrac{e^{3u}-21u}9\,\vec k\right)\bigg|_0^t

\vec r(t)=\dfrac{t^3+12t+24}{12}\,\vec\imath-\dfrac{8t^{5/2}+15t-15}{15}\,\vec\jmath+\dfrac{e^{3t}-21t-10}9\,\vec k

3 0
4 years ago
Who knows this answer because nobody does at my school PLEASE HELP.
brilliants [131]

Answer:

288

Step-by-step explanation:

Use the equation  [(6/2)as] to find the area of the base. Then use  [ 3as + 3sl ] to find the surface area. Add them up since they both equal 144 to get 288.

6 0
3 years ago
What is 1/3 of 30% of 5/6 of 0.6 of 12?
aliina [53]

Step-by-step explanation:

\frac{1}{3 } \times  \frac{30}{1}  = 10 \\  \\  \frac{10}{1}  \times  \frac{5}{6}  = 8.33 \\  \\  \frac{833}{100}  \times  \frac{6}{10}  = 4.998 \\  \\  \frac{4998}{1000}  \times  \frac{12}{1}  = 59.976

8 0
3 years ago
PLEASE HELP ME ITS TIMED!!
Arturiano [62]

Answer:

x=10

Step-by-step explanation:

x^2 + 24^2 = 26^2

x^2 + 576 = 676

x^2 = 100

√x^2 = √100

x=10

8 0
3 years ago
Read 2 more answers
35 points for this ​
BabaBlast [244]

Answer:

I think it would be y = 27.5

Step-by-step explanation:

If x = 120 and y = 55, and x=60, or half of 120, then y would be half of 55, or 27.5

3 0
3 years ago
Read 2 more answers
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