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rjkz [21]
3 years ago
14

Can someone please help me on my question!! Thanks

Mathematics
1 answer:
RideAnS [48]3 years ago
5 0
What is your question
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A cylindrical rain barrel has a radius of 2 feet and holds a total of 30 cubic feet of water. How tall is the rain barrel? Use 3
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2.39 feet is the answer
5 0
3 years ago
Read 2 more answers
65=15+x^2 solve for x
7nadin3 [17]

Answer:

±5sqrt(2) =x

Step-by-step explanation:

65=15+x^2

Subtract 15 from each side

65-15=15-15+x^2

50 = x^2

Take the square root of each side

±sqrt(50) = sqrt(x^2)

±sqrt(25*2) =x

±sqrt(25)sqrt(2) =x

±5sqrt(2) =x

4 0
2 years ago
A property sells for $620,000 two years after it was purchased. If the annual appreciation rate was 4%, how much did the origina
8090 [49]
$25,000 is the answer you would take $620,000 x 0.04 (4%)= 24,800 which rounds to 25,000
6 0
3 years ago
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The amount of water consumed each day by a healthy adult follows a normal distribution with a mean of 1.30 liters. A health camp
Rom4ik [11]

Answer:

H0: μ ≤ 1.30

H1: μ > 1.30

|Test statistic | > 1.833 ; Reject H0

Test statistic = 3.11

Yes

Pvalue = 0.006

Step-by-step explanation:

H0: μ ≤ 1.30

H1: μ > 1.30

Samples, X ; 1.36,1.35,1.33, 1.66, 1.58, 1.32, 1.38, 1.42, 1.90, 1.54

Xbar = 14.84 / 10 = 1.484

Standard deviation, s = 0.187 (calculator)

Decison rule :

|Test statistic | > TCritical ; reject H0

df = n - 1 = 10 - 1 = 9

Tcritical(0.05; 9) = 1.833

|Test statistic | > 1.833 ; Reject H0

Test statistic :

(xbar - μ) ÷ (s/√(n))

(1.484 - 1.30) ÷ (0.187/√(10))

0.184 / 0.0591345

Test statistic = 3.11

Since ;

|Test statistic | > TCritical ; We reject H0 and conclude that water consumption has increased

Pvalue estimate using the Pvalue calculator :

Pvalue = 0.006

7 0
2 years ago
6. The 2014 winner of the Boston Marathon runs as many as 120 miles per week. During the last few weeks of his
Nadusha1986 [10]

Answer:

Step-by-step explanation:

4 0
2 years ago
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