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11Alexandr11 [23.1K]
3 years ago
11

Solve the equation '' x-100=200

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
5 0

Answer:

I think 300 is the answer. I hope this helped you!

Step-by-step explanation:

x-100=200

200+100=x

300=x

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A farmer saved $250 in four months. Which unit rate represents the farmer's savings? $1000 per year $1000 per month $750 per yea
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Answer:

$750 per year

Step-by-step explanation:

The farmer saves $250 in four months.  You need to find out how much he makes in a year.  There are 12 months in a year.  Multiply the amount he saves by 3.

$250 × 3 = $750

The farmer saves $750 per year.

4 0
3 years ago
Which fraction is proportional to 2/5?
kirza4 [7]
6/15


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Show that the following functions are probability density functions for some value of k and determine k. Then, determine the mea
lord [1]

Answer:

a) 17.5

b) 15.6

c) 13.3

d) 21.51

Step-by-step explanation:

The given function is equal to:

f(x)=kx^2

where

\int\limits^y_0 {kx^{2} } \, =1

where y=23

Clearing k=0.00025

a) Ex=\int\limits^y_0 {xf(x)} \, dx =\int\limits^y_0 {x*0.00025x^{2} } \, dx =17.5

b)Vx=Ex^{2} -(Ex)^{2} =\int\limits^y_0 {x^{2}f(x) } \, dx-17.5^{2}  =\int\limits^y_0 {x^{2} *0.00025x^{2} } \, dx -17.5^{2} =321.82-306.25=15.6

c) The function is equal to:

f(x)=k(1+2x)

\int\limits^y_0 {k(1+2x)} \, =1

where y=20

k=0.0024

Ex=\int\limits^y_0 {xf(x)} \, dx =\int\limits^y_0 {x*0.0024(1+2x)} \, dx =13.3

d) Vx=Ex^{2} -(Ex)^{2} =\int\limits^y_0 {x^{2} f(x)} \, dx -13.3^{2}=\int\limits^y_0 {x^{2} *0.0024(1+2x)} \, dx-13.3^{2}   =198.4-176.89=21.51

8 0
4 years ago
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Kobotan [32]

Answer:

No

Step-by-step explanation:

They are not real un my opinion

4 0
3 years ago
Read 2 more answers
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Diano4ka-milaya [45]
(a) Brand X median  = 13
      Brand Y median = 16

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