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adoni [48]
4 years ago
13

PLEASE HELP ASAP!

Mathematics
1 answer:
slavikrds [6]4 years ago
8 0

Answer:

1.5 per sandwhich

Step-by-step explanation:

4.5/3= 1.5

10.5/7=1.5

1=1.5

2=3

3=4.5

4=6

5=7.5

6=9

7=10.5

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A random sample of 1000 registered voters in Flagstaff found 760 registered voters who support immigration reform. Find a 95% co
dusya [7]

Answer: (0.7335,\ 0.7865)

Step-by-step explanation:

Given : A random sample of 1000 registered voters in Flagstaff found 760 registered voters who support immigration reform.

sample size : n= 1000

sample proportion: \hat{p}=\dfrac{760}{1000}=0.76

Critical value for 95% confidence interval = z_{\alpha/2}=1.96

Confidence interval :

\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}\\\\=0.76\pm(1.96)\sqrt{\dfrac{0.76(1-0.76)}{1000}}\\\\=0.76\pm0.0264708866493\\\\\approx0.76\pm0.0265\\\\=(0.76-0.0265,\ 0.76+0.0265)=(0.7335,\ 0.7865)

Hence, the  95% confidence interval for the true percent of registered voters in Flagstaff who support immigration reform: (0.7335,\ 0.7865)

6 0
3 years ago
Please help me!!!!
Free_Kalibri [48]

Answer: (ln10)/6=t

Step-by-step explanation: e is an irrational number, like pi. Therefore the only variable to solve for is "t." Divide both sides by 4, then subtract (1/4) from both sides to get 10. Then take the natural log of both sides because you get rid of e on the left side, and you have the variable by itself. Natural log, or ln, represents loge base e, so dividing both sides by 6, we get t! I hope this helps!

7 0
2 years ago
Read 2 more answers
A bag has 8 blue marbles and 12 yellow marbles. Half of the yellow marbles are made of plastic. A marble is selected at random f
Y_Kistochka [10]

Answer:

3/10

Step-by-step explanation:

8 blue marbles and 12 yellow marbles.  = 20 marbles

P( yellow) = yellow/total =12/20 =3/5

P(plastic) =1/2

P(yellow, plastic) = 3/5 * 1/2 = 3/10

8 0
3 years ago
Lol who wants free points
JulijaS [17]

Answer:

meeeeee can u mark me brailiest tooo

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Mrs. Larivierre fills a tub with water so she can bathe her dog. Which is the most appropriate unit for measuring the capacity o
Virty [35]

Answer:

gallon

Step-by-step explanation:

A gallon is  a measuring unit used to measure the liquid capacity. It helps in measuring the volume and capacity of a fluid. The capacity of one gallon is equivalent to 3.79 liters. It is used to denote the measurement of approximately four liters of liquid.  

Mrs. Larivierre had filled a tub with water. To measure the water content of the tub, the most appropriate unit would be a gallon.

3 0
3 years ago
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