F(x)=x^2-4x+7
My work is attached below
A rational number is a number that can be written into a fraction. pi, some square roots, e, etc., are irrational numbers(numbers that cannot be written into a fraction).
It might be A
Example: I tried to do the math and i came out with 1/20 so try it. i’m very sorry if it’s wrong
Answer:
Claim : men weigh of wild jackalopes is 69.9
The null hypothesis : H0 : μ = 69.9
Alternative hypothesis : H1 : μ ≠ 69.9
Test statistic = −2.447085
P value = 0.0174
Conclusion :
Fail to Reject the Null hypothesis
Step-by-step explanation:
From the question given :
The claim is that : mean weight of wild jackalopes is still the same as 10 years with a mean weight of 69.9 lbs.
The null hypothesis : H0 : μ = 69.9
Alternative hypothesis : H1 : μ ≠ 69.9
Using calculator :
Sample mean (x) = 66
Sample standard deviation (s) = 12.345
The test statistic t :
(x - μ) / (s/√n)
n = sample size = 60
(66 - 69.9) / (12.345 / √60)
t = −2.447085
P value at α 0.01, df = 59 is 0.0174
Since the p value is > 0.01, the result is not significant at 0.01. Therefore, we fail to reject the Null
Answer:
Case (c) has the lowest unit price and is thus the best buy.
Step-by-step explanation:
Example: (a) The unit price is the price paid divided by the weight:
$0.50
------------ = $0.2857/oz, or (to 2 decimal places) $0.29/oz
1.75 oz
(b) $1.00/(6 ounces) = $0.17/oz
(c) $1.88/(12 ounces) = $0.16/oz
Case (c) has the lowest unit price and is thus the best buy.
