Answer: b. H0: μ ≥ 5; Ha: μ < 5
Step-by-step explanation:
The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean.
While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.
The mean is 5 years and they claim it will perform for more than 5 years.
Therefore, for the case above;
H0: μ ≥ 5; Ha: μ < 5
Note: a null hypothesis must always include an equal to sign.
Answer:
-43
Step-b-y-step explanation:
f(x)= -x^2+7x-13 so
f(-3)= - (-3)^2 + 7(-3) - 13
= -9 - 21 - 13
= -43.
Assuming the 6 is the underlined digit, it is in the "hundred millions" place. Its place value there is 600,000,000. That's six hundred million.
If 7 is the underlined digit, it is in the "ten millions" place. Its place value there is 70,000,000. That's seventy million.
_____
The place value of a digit is revealed by setting all the other digits to zero.
A varible represents the number u are looking for.
Example:
2x + 3x
3x-y-4z, just add/subtract the numbers with the same variable
