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Zielflug [23.3K]
3 years ago
5

Using Identity, find the value: i) 203 x 205 Plss I NEED HELP!!! T^T

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
7 0

Step-by-step explanation:

203*205

(200+3)*(200+5)

200²+200(5+3)+15

40000+3000+15

403015

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Factor 28 + 56+ + 28w to identify the equivalent expressions.<br> 0<br> ht
dmitriy555 [2]

Answer:

84+28w

hope this helps

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Step-by-step explanation:

7 0
3 years ago
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Simplify:<br><br> 3-2<br> what is this awnser
sweet [91]

Answer:

It is ................................................................. 1

Step-by-step explanation:

7 0
3 years ago
Answer questions 1, 2, 3 and challenge
hjlf
1. find volume
V=LWH
V=25*13*14
V=4550
each covers 1000
how many will cover the whole thing?
we can't put 4 becuase that leaves 550 uncovered
add another


5 is answer (it is too much , but at leas not too little) answer is D




2.
V=LWH
V=6*4*10
V=240

answer is D






3.  count how many are there, don't forget the hidden ones
13 cubes
volume=legnth tiems width times height
cubes so
v=side^3
side=3
3^3=27
13 cubes
13*27=351 in^3


challenge (this is meant to challenge you, not for you to ask people, but I will solve anyway, robbin you of experience)

V=LWH
V=5880
H=30
5880=LW30
divide both sides by 30
196=LW
they have square bases so L=W
196=L^2
sqrt both sides
14=L=W
the side legnth is 14in
4 0
3 years ago
Easy question
Leviafan [203]
\dfrac{\mathrm dy}{\mathrm dt}=ky\iff\dfrac{\mathrm dy}y=k\,\mathrm dt

Integrating both sides, we get

\ln|y|=kt+C
\implies y=e^{kt+C}=e^{kt}e^C=Ce^{kt}

When t=0, we have y=10000, so that

10000=Ce^{0k}\implies C=10000

When t=4, we have y=8000, which means

8000=10000e^{4k}\implies k=\dfrac14\ln\dfrac{8000}{10000}\approx-0.0558
5 0
3 years ago
I need help with m-3 over 4 = m-3 over 5
MariettaO [177]
M=3

You would begin by cross multiplying and then solving it from there:

5(m-3)=4(m-3)
5m-15=4m-12
5m-4m=-12+15
m=3
6 0
3 years ago
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