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Alika [10]
3 years ago
8

Express in scientific notation 235.4​

Mathematics
1 answer:
Mariana [72]3 years ago
3 0

Answer:

2.354 × 10^2 is it

Step-by-step explanation:

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8th grade khan academy
satela [25.4K]

Answer:

d = 11t - 20

Step-by-step explanation:

Hope it helps and have a great day! =D

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4 0
3 years ago
The general solution to the second-order differential equation y′′+10y=0 is in the form y(x)=c1cosβx+c2sinβx. Find the value of
allsm [11]

Answer:β=√10 or 3.16 (rounded to 2 decimal places)

Step-by-step explanation:

To find the value of β :

  • we will differentiate the y(x) equation twice to get a second order differential equation.
  • We compare our second order differential equation with the Second order differential equation specified in the problem to get the value of β

y(x)=c1cosβx+c2sinβx

we use the derivative of a sum rule to differentiate since we have an addition sign in our equation.

Also when differentiating Cosβx and Sinβx we should note that this involves function of a function. so we will differentiate  βx in each case and multiply with the differential of c1cosx and c2sinx respectively.

lastly the differential of sinx= cosx and for cosx = -sinx.

Knowing all these we can proceed to solving the problem.

y=c1cosβx+c2sinβx

y'= β×c1×-sinβx+β×c2×cosβx  

y'=-c1βsinβx+c2βcosβx

y''=β×-c1β×cosβx + (β×c2β×-sinβx)

y''= -c1β²cosβx -c2β²sinβx

factorize -β²

y''= -β²(c1cosβx +c2sinβx)

y(x)=c1cosβx+c2sinβx

therefore y'' = -β²y

y''+β²y=0

now we compare this with the second order D.E provided in the question

y''+10y=0

this means that β²y=10y

β²=10

B=√10  or 3.16(2 d.p)

5 0
3 years ago
To make fruit baskets to take to the local nursing homes, the culinary club purchases 36 green apples and 63 pears. What is the
Eddi Din [679]
99 because if u add those toghether u get99
4 0
3 years ago
Read 2 more answers
-2 1/3 - (-5) = ? can someone please help me ty!
Eddi Din [679]

Answer: 8/3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Fill in two equal numbers that add to the even number 38
tino4ka555 [31]
19 + 19 = 38 <======
6 0
3 years ago
Read 2 more answers
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