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tester [92]
3 years ago
8

Can someone please help me solve this? and explain how you got the answer? Thank you​

Mathematics
1 answer:
Tatiana [17]3 years ago
5 0
36.9
it might be wrong but at least i tried
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Find the general solution of the differential equation. (Use C for any needed constant.) dy dx = 1 − y
daser333 [38]

Answer:

Step-by-step explanation:

Give the DE

dy/dx = 1-y

Using variable separable method

dy = (1-y)dx

dx = dy/(1-y)

Integrate both sides

 ∫dx =  ∫dy/(1-y)

 ∫dy/(1-y)=  ∫dx

-ln(1-y) = x+C

ln(1-y)^-1 = x+C

Apply e to both sides

e^ln(1-y)^-1 = e^,(x+C)

(1-y)^-1 = Ce^x

1/(1-y) = Ce^x

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3 years ago
Is 9 7/8 irrational or rational?
Karo-lina-s [1.5K]

Answer:irrational

Step-by-step explanation: it is not a whole number

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3 years ago
Solve by factoring
True [87]

2×2-13(19÷13)+15=0

So x= 19/13

7 0
3 years ago
A hair salon in Cambridge, Massachusetts, reports that on seven randomly selected weekdays, the number of customers who visited
morpeh [17]

Answer:

a: 28 < µ < 34

Step-by-step explanation:

We need the mean, var, and standard deviation for the data set.  See first attached photo for calculations for these...

We get a mean of 222/7 = 31.7143

and a sample standard deviation of: 4.3079

We can now construct our confidence interval.  See the second attached photo for the construction steps.

They want a 90% confidence interval.  Our sample size is 7, so since n < 30, we will use a t-score.  Look up the value under the 10% area in 2 tails column, and degree of freedom is 6 (degree of freedom is always 1 less than sample size for confidence intervals when n < 30)

The t-value is: 1.943

We rounded down to the nearest person in the interval because we don't want to over estimate.  It said 28.55, so more than 28 but not quite 29, so if we use 29 as the lower limit, we could over estimate.  It's better to use 28 and underestimate a little when considering customer flow.

5 0
3 years ago
Please helppppp me What’s the answer?
taurus [48]

Answer:

She shaded above the line when she should have shaded below the line.

Step-by-step explanation:

hope this helps and is right. p.s. i really need brainliest :)

if this is wrong then I am incredibly sorry!

5 0
2 years ago
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