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xxMikexx [17]
3 years ago
7

I need to know the answer to this problem​

Mathematics
1 answer:
vovikov84 [41]3 years ago
5 0

Answer:

y^56

Step-by-step explanation:

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A bank offers auto loans to qualified customers. The amount of the loans are normally distributed and have a known population st
vlabodo [156]

Answer: 1.467

Step-by-step explanation:

Formula of Margin of Error for (n<30):-

E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 22

Level of confidence = 0.90

Significance level : \alpha=1-0.90=0.10

By using the t-distribution table ,

Critical value : t_{n-1, \alpha/2}=t_{21,0.05}= 1.720743

Standard deviation: \sigma=4

Then, we have

E=(1.720743)\dfrac{4}{\sqrt{22}}=1.46745456106\approx1.467

Hence, the margin of error for the confidence interval for the population mean with a 90% confidence level =1.467

5 0
3 years ago
Read 2 more answers
X^{2} -81 find the diffrence of squares
Rasek [7]

Answer:

yuygiiyc

ijcyycyccjc

c

ycyi

cyi

chicihihcñicyñi.hcjck kh.i .h.icy

Step-by-step explanation:

bgvghuhukvkbkkk

4 0
2 years ago
Tony gets paid $5 per hour to babysit his cousin. This
Kaylis [27]

<em>Answer:</em>

a

<em>Step-by-step explanation:</em>

lets substitute 5 into every equation. (using 5 every time won't work every time ofc)

ok so 5(x+6)=55 would simplify into <em>5x+30=55</em> which in this case would be <em>5(5)+30=55 </em>

and 25 plus 30 (obviously) = 55

so A is the right answer

8 0
2 years ago
Monarch butterflies flap their wings about 12 times a second in
Inessa [10]
Remember: 60 seconds in a minute, 60 minutes in one hour.
So if butterflies flap 12 times per second, multiply that number by 60 to get how many times the butterfly flaps their wings in a minute. then, multiply that number by 60 again to get the flaps of number per minute.
12x60=720x60=43,200
8 0
3 years ago
Chloe has $15 to spend on pencils. Each box of pencils costs $2. How many
Scorpion4ik [409]
Chloe can buy 7 pencil boxes and have 1 dollar left
3 0
3 years ago
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