What is the radius and diameter of the following circle 7cm
Answers
Answer:
7
3.5
Step-by-step explanation:
Related Questions
What is the next number in the sequence. 1,121,12321, 1234321The next number in the sequence is _____
Jon uses 1 quart of lemonade, 4 quarts of cranberry juice, and 2 quarts of sparkling water to make punch. How many cups of punch does Jon make?
A presidential candidate plans to begin her campaign by visiting the capitals in 4 of 42 states. What is the probability that she selects the route of four specific capitals? Is it practical to list all of the different possible routes in order to select the one that is best?P(she selects the route of four specific capitals): _____.Is it practical to list all of the different possible routes in order to select the one that is best?A.Yes, it is practical to list all of the different possible routes because the number of possible permutations is very small.B.Yes, it is practical to list all of the different possible routes because the number of possible permutations is very large.C.No, it is not practical to list all of the different possible routes because the number of possible permutations is very small.D.No, it is not practical to list all of the different possible routes because the number of possible permutations is very large.
Yearly travel expenses for a family of four are normally distributed with a mean expense equal to $3,000 and a standard deviation equal to $500. What is the probability of travel expenses being greater than $4,000?
Answers
Answer: It is a weak negative correlation and it is not likely causal.
Step-by-step explanation:
Given: The number of times a player has golfed in one's lifetime is compared to the number of strokes it takes the player to complete 18 holes. The correlation coefficient relating the two variables is -0.26.
Variables : "number of times a player has golfed in one's lifetime" and "number of strokes it takes the player to complete 18 holes".
Since -0.26 is more closer to 0 as compared to 1 , so it describes a weak negative correlation.
Also, it is not likely causal as number of times a player has golfed in one's lifetime not cause number of strokes it takes the player to complete 18 holes.
Answer: B) It is a weak negative correlation, and it is likely casual
Correct on edge 2020!
Answers
Answer:
The length and width of the floor of the shed are 8 feet and 5.5 feet, respectively.
Step-by-step explanation:
Given that the shape of the shed is a rectangle, the expression for the area is:
Where and
are the width and length of the shed, measured in feet. In addition, the statement shows that
. Then, the equation of area is expanded by replacing length:
If , then, a second-order polynomial is formed:
The roots of this equation are found via General Equation for Second-Order Polynomials:
and
Only the first roots is a physically reasonable solution. Then, the length of the shed is:
The length and width of the floor of the shed are 8 feet and 5.5 feet, respectively.
Answers
Answer:
0.25
Step-by-step explanation:
16 ounces = 1 pound
4.00 / 16 = 0.25
Answers
The greatest common factor of 42 and 96 is 6.
What is greatest common factor?
The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share.
42 = 2 x 3 x 7
96 = 2 x 2 x 2 x 2 x 2 x 3
Greatest common factor = 2 x 3 = 6
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Answer:
6
Step-by-step explanation:
42 and 96
first we will find the factors of 42:
2 21
3 7
7 7
hence, factors of 42 are 2,7 and 3
then, we will find the factors of 96:
2 96
2 48
2 24
2 12
2 6
3 3
1
hence, factors of 96 are 2,2,2,2,2 and 3
Common factors are: 2 and 3
Highest common factor: 6
A. y = (-5/2)x - 3
B. y = (-2/5)x + 3
C. y = (-2/5)x - 3
D. y = (2/5)x + 3
Answers
Answer:
B
Step-by-step explanation:
The equation we must find is in y = mx + b form. We are given that it intercepts (0,3), so the y-intercept it 3 and b = 3. We can find the slope with the two points we are given: m = (3-5)/(0(-5)) = -2/5. Substituting these values, we find: y = (-2/5)x + 3
Does this sample data provide evidence that the breeder's claim is correct?
Answers
Answer:
The calculated value Z = 1.183 < 1.96 at 0.05 level of significance
Null hypothesis is accepted
A particular greyhound breeder claims that her dogs are faster than the average greyhound
Step-by-step explanation:
Step(i):-
Given the average speed of greyhound dogs is about 18.4 meters per second.
Size of the sample 'n' = 35
mean of the sample x⁻ = 18.7
Population standard deviation = 1.5m/s
level of significance (∝) = 0.05
Step(ii):-
Null hypothesis : H₀ : μ = 18.4
Alternative hypothesis H₁ : μ ≠ 18.4
Test statistic
Z = 1.183
Conclusion:-
The calculated value Z = 1.183 < 1.96 at 0.05 level of significance
Null hypothesis is accepted
A particular greyhound breeder claims that her dogs are faster than the average greyhound
Final answer:
Evaluate the breeder's claim by using a one-sample z-test. The null hypothesis states that the breeder's dogs aren't faster than average, while the alternative hypothesis states that they're faster. If the calculated Z is greater than Zcritical, it supports the breeder's claim.
Explanation:
In this scenario, you would carry out a one-sample z-test to evaluate the breeder's claim. Given an average speed of greyhounds as 18.4 m/s, the breeder's dogs with an average of 18.7 m/s could be faster or this could just be due to statistical fluctuation. Hence, we need to statistically test it to see if this evidence is strong enough (with a significance level of .05) to support the breeder's claim.
Our null hypothesis (H0) is that the breeder's dogs are not faster than the average greyhound (µ = 18.4 m/s), and our alternative hypothesis (Ha) is that they are faster (µ > 18.4 m/s). Using the Z-test formula:
Z = (Xbar - µ) / (σ/√n)
where Xbar is sample mean, µ is population mean, σ is standard deviation, and 'n' is sample size. Applying the provided figures, we get:
Z= (18.7-18.4)/(1.5/√35)
Give the calculated Z value and compare it to the Z critical value for 0.05 significance level (1.645 for one-tail). If the calculated Z is greater than Zcritical, we reject the null hypothesis, providing evidence that the population mean is greater than 18.4 m/s, supporting the breeder's claim.
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