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Nikitich [7]
3 years ago
9

8849.87 and 2919.07 equals in scientific notation

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
5 0
8.8 *10^3 (2 sig fig)

2.9 *10^3 (2 sig fig)
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Write an expression using an expoent that is equivalent to 9x9x9x9x9x9x9.
dexar [7]

Answer:

try nine to the seventh power

Step-by-step explanation:

tell me if it works

4 0
3 years ago
Please help me 45points!
ohaa [14]

Mr Jones typed 40 * 10 = 400 words.

Mrs Gonzales took 400 / 50 = 8 minutes to type same number of words.

4 0
3 years ago
Find the area of the surface. the part of the hyperbolic paraboloid z = y2 − x2 that lies between the cylinders x2 + y2 = 16 and
meriva
Parameterize the surface (call it \mathcal S) by

\mathbf s(u,v)=\langle u\cos v,u\sin v,u^2\sin^2v-u^2\cos^2v\rangle=\langle u\cos v,u\sin v,-u^2\cos2v\rangle

with 4\le u\le5 and 0\le v\le2\pi, which yields

\mathrm dS=\|\mathbf s_u\times\mathbf s_v\|\,\mathrm du\,\mathrm dv=u\sqrt{1+4u^2}\,\mathrm du\,\mathrm dv

Then the area of \mathcal S is given by the surface integral

\displaystyle\iint_{\mathcal S}\mathrm dS=\int_{v=0}^{v=2\pi}\int_{u=4}^{u=5}u\sqrt{1+4u^2}\,\mathrm du\,\mathrm dv=\dfrac{(101^{3/2}-65^{3/2})\pi}6
8 0
3 years ago
What is the KE of a 1 kg ball traveling at 20 meters per second?
Sonbull [250]
The easiest way to find that answer is to look at the solution that I just gave you for the same ball traveling at 30 M/Sec, and just substitute 20 in place of 30 in that solution.
3 0
3 years ago
70% of the magic tricks that Jade knows are card tricks. If she knows 14 card tricks, how many magic tricks does Jade know in al
Irina-Kira [14]

Answer:

20

Step-by-step explanation:

Given data

Let the number of magic tricks be x

we are told that she knows 70% of card trick which is 14 card tricks

hence we have

70/100*x= 14

0.7x= 14

x= 14/0.7

x=20

Hence the number of magic tricks she knows is 20

6 0
3 years ago
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