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DochEvi [55]
3 years ago
14

Emanuel surveyed a random sample of 50 subscribers to Auto Wheel magazine about the number of cars that they own. Of the subscri

bers surveyed, 15 own fewer than 2 vehicles. There are 340 subscribers to Auto Wheel magazine. Based on the data, what is the most reasonable estimate for the number of Auto Wheel magazine subscribers who own fewer than 2 vehicles? what would the awser be i dont get it
Mathematics
2 answers:
blondinia [14]3 years ago
8 0
102 would be the most reasonable estimate.

The experimental probability of owning fewer than 2 vehicles, based on the survey, is 15/50.  We multiply this probability by the number of subscribers to the magazine:

15/50(340) = 102
galben [10]3 years ago
6 0

Answer:

102

Step-by-step explanation:

It was correct on Khan Academy

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Which numbers should go in the shaded overlap? <br> Factors of 30<br> Factors of 20
babymother [125]
Both of these numbers have 2 and 5 as their factors
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3 years ago
Set up but do not solve for the appropriate particular solution yp for the differential equation y′′+4y=5xcos(2x) using the Meth
taurus [48]

Answer:

So, solution of  the differential equation is

y(t)=-\frac{5x^2}{4}\cot 2x\cdot \cos  2x+c_1e^{-2it}+c_2e^{2it}\\

Step-by-step explanation:

We have the given differential equation: y′′+4y=5xcos(2x)

We use the Method of Undetermined Coefficients.

We first solve the homogeneous differential equation y′′+4y=0.

y''+4y=0\\\\r^2+4=0\\\\r=\pm2i\\\\

It is a homogeneous solution:

y_h(t)=c_1e^{-2i t}+c_2e^{2i t}

Now, we finding a particular solution.

y_p(t)=A5x\cos 2x\\\\y'_p(t)=A5\cos 2x-A10x\sin 2x\\\\y''_p(t)=-A20\sin 2x-A20x\cos 2x\\\\\\\implies y''+4y=5x\cos 2x\\\\-A20\sin 2x-A20x\cos 2x+4\cdot A5x\cos 2x=5x\cos 2x\\\\-A20\sin 2x=5x\cos 2x\\\\A=-\frac{x}{4} \cot 2x\\

we get

y_p(t)=A5\cos 2x\\\\y_p(t)=-\frac{5x^2}{4}\cot 2x\cdot \cos  2x\\\\\\y(t)=y_p(t)+y_h(t)\\\\y(t)=-\frac{5x^2}{4}\cot 2x\cdot \cos  2x+c_1e^{-2it}+c_2e^{2it}\\

So, solution of  the differential equation is

y(t)=-\frac{5x^2}{4}\cot 2x\cdot \cos  2x+c_1e^{-2it}+c_2e^{2it}\\

7 0
3 years ago
Solve. –4t ≤ 48 A. t ≥ –12 B. t ≤ –12 C. t ≥ 12 D. t ≤ 12
Oksana_A [137]
-4t \leq 48 \ \ \ : |(-4) \\  \\ t  \geq 12

<em>\\\ Ben</em>
3 0
3 years ago
9x-7=-7 how do you solve this problem
borishaifa [10]
<span>9x-7=-7 
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YA BOIIIIIIIIIII, DEADPOOL IN THE HOUSE!

-Gives you a thumbs up- </span>
3 0
3 years ago
Read 2 more answers
What is the slope of the line described by the equation below? Y-7=8(x-14
WINSTONCH [101]

Answer: 8 is the slope


Step-by-step explanation:

Y-7=8(x-14)

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3 0
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