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kkurt [141]
3 years ago
10

Instructions: Find the common difference of the arithmetic sequence. 7.05, 7.15, 7.25,7.35, 7.45

Mathematics
2 answers:
zzz [600]3 years ago
7 0
I believe that the common difference would be.10
riadik2000 [5.3K]3 years ago
7 0

Answer:

Step-by-step explanation:

Common difference = 2nd term - 1st term

                                 = 7.15 - 7.05

                                 = 0.10

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A bank wants to estimate the difference in the proportion of its "big" customers who have a second account with a different bank
In-s [12.5K]

Answer:

Kindly check explanation

Step-by-step explanation:

To construct confidence interval for difference in proportion ; the following conditions must be met :

1.) The selected samples must have been randomly chosen or selected from a larger population. This is essential in other to eliminate bias.

Each group of samples must be independently chosen. That is, the samples of bug customers chosen must be independent of the sample of small customers selected.

The population from which the samples are drawn must be considerably larger than the sample size. Sample size, n should be ≤ 10% of the population size.

p1 = 160 / 200 = 0.8 ; (1 - p1) = 0.2

p2 = 120 / 300 = 0.4 ; (1 - p2) = 0.6

(p1 - p2) ± Zcritical * sqrt[(p1(1 - p1) /n1) + (p2(1 - p2) / n2)]

5 0
2 years ago
find the circumference of the circle shown below. Remember to use 3.14 for LaTeX: \piπ, and be sure to round your final answer t
nevsk [136]

Answer:

62.8   If rounded to the nearest hundredth it is 62.80

Step-by-step explanation:

1.  Formula for circumference of a cirlcle is 2 (pi) r  where for this problem,

2 =2,

pi= 3.14 and

r= 10 (1/2 of the diameter =radius)

2.   2 x 3.14 x 10

multiply all 3 numbers above, you get 62.8

3. Depending on your teacher or the test,

62.8 is your answer, if it HAS to be to the nearest hunderedth, and it's on a specific program, it might want you to enter the "0" at the end   62.80

7 0
3 years ago
How many arches are in an equilateral triangle
defon
There 3 of them
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8 0
3 years ago
Read 2 more answers
solve, showing all work. state if there is one solution, no solution, or infinite solutions -3(k+2)=-3k+7. please help i need an
WARRIOR [948]

Answer:

-6=7 NO SOLUTION

Step-by-step explanation:

First, distribute the -3 to the (k +2)

Your equation becomes, -3k-6=-3k+7

Add 3k to both sides to have the variables be on the same side

Your equation becomes, -6=7

Since that isn’t true, it’s a no solution

I hope this helps!

8 0
3 years ago
Chicken costs $3.20 per pound, and beef costs $4.59 per pound. What is the exact cost of 3 pounds of beef?
Pie

Answer:

$13.77 for three pounds of beef

7 0
3 years ago
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