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Evgesh-ka [11]
2 years ago
6

A water tank is being filled by two inlet pipes. Pipe A can fill the tank in 4 hours, while both pipes

Mathematics
1 answer:
Leya [2.2K]2 years ago
7 0

2 Hours

this is because one pipe takes 4 hours, and if both pipes take 2 hours, that is cutting the time in half, meaning both pipes pour the same amount and take the same time.

hope this is helpful!

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In the figure diameter DE is drawn with the midpoint of the circle at C(-3; 2).
Lelechka [254]

Answer:

4

Step-by-step explanation:

gradient =   \frac{y2 - y1}{x2 - x1}

y2 =  - 3 \\ y1 = 3 \\ x2 = 2 \\ x1 = 3

\frac{ - 3 - 1}{2 - 3}  =  \frac{ - 4}{ -  1}  = 4

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3 years ago
Solve its easy first one to answer get brainiest
alexandr402 [8]

Answer:

$1.53

Step-by-step explanation:

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3 years ago
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A recipe used 1/2 cup of sour cream for every 1/4 teaspoon of salt. What is the unit rate of teaspoons of salt per cup of sour c
kifflom [539]

Answer:

1/2 teaspoons of salt per cup of sour cream

Step-by-step explanation:

multiply 1/2 and 1/4 by 2 to get 1 and 1/2. Since the question is teaspoons of salt per cup of sour cream, flip the numbers to get 1/2 teaspoons of salt per 1 cup of sour cream.

5 0
3 years ago
What is the distance between U (-2, 1) and V (8, -6)?
SashulF [63]

The distance between the points U and V as given in the task content is; 12.2.

<h3>What is the distance between the points U and V?</h3>

Since the points U and V are as given in the task content, it follows that the distance between them can be calculated as follows;

Distance, D = √((x2 -x1)² + (y2 -y1)²)

Distance, D = √((-6-1)² + (8-(-2))²)

D = √(49 + 100)

D = √149

D = 12.2.

Read more on distance between points;

brainly.com/question/23848540

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3 0
2 years ago
Pairs of P-values and significance levels, α, are given. For each pair, state whether the observed P-value would lead to rejecti
lubasha [3.4K]

Answer:

(a) P-value = 0.074, α = 0.05 do not reject H0

(b) P-value = 0.006, α = 0.001 do not reject H0

(c) P-value = 0.494, α = 0.05 do not reject H0

(d) P-value = 0.074, α = 0.10 reject H0

(e) P-value = 0.028, α = 0.01 do not reject H0

(f) P-value = 0.296, α = 0.10 do not reject H0

Step-by-step explanation:

The p-value is used to determine the statistical significance of the results of a statistical test. The p-value is the probability that the null hypothesis is correct. Smaller the p-value, higher is the probability that the alternate hypothesis is correct. On the other hand, the significance level (α) is the probability of rejecting the null hypothesis when it is true. It is the risk that you are willing to take in saying that there are differences between groups when there are not. 

In order to reject the null hypothesis, the p-value should be lower than the significance level (α).

7 0
3 years ago
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