Options:
H0 :
H0 : µ =12
H0 > 12> H1
None of these
Answer:
None of these
Step-by-step explanation:
The answer is
H0 : µ ≧ 12
Ha : µ<12
We formulate the null and alternative hypothesis here to state that battery life of the laptop lasts at least 12 hours(more than but not less, null hypothesis) or that it lasts less than 12 hours(alternative hypothesis).
The null hypothesis is the one being tested to know whether we would reject it or not in which case we choose the alternative hypothesis. To test the hypotheses, we do a t test using a significance level of say 0.05(95% confidence interval) and find our p value in order to compare and decide if the null hypothesis would be rejected or not based on statistical significance.
Answer:
x=20 degrees
Step-by-step explanation:
complementary means the angles equal 90 degrees
so ∠A+∠B=90 degrees
∠A=3x-2 and ∠B=x+12
so subsitute
(3x-2)+(x+12)=90
then solve for x
4x+10=90
4x=80
x=20 degrees is your answer
Answer:
mhm im not sure... ill forward this to a genius.
Step-by-step explanation:
Calculating 13% of 4500
= 0.13*4500
= $585
The refund she can expect = 585 - 495 = $90 (answer)
Answer:
13(3d - e + 15g).
Step-by-step explanation:
Distributive property example,
a(x + y + z) = ax + ay + az
By this property we have to convert the given expression into a distributive property form.
39d - 13e + 195g
Take the common factor out from each term of the expression,
39d - 13e + 195g = 13(3d - e + 15g)
Therefore, distributive property form of the given expression is 13(3d - e + 15g).
