Answer:
27
Step-by-step explanation:
3 (12 - 3)
multiply 3 *12 = 36
multiply 3 * 3 = 9
36-9 =27
Answer:
Correct option: (D) <em>H₀</em>: <em>μ</em> = 55 vs. <em>Hₐ</em>: <em>μ</em> < 55.
Step-by-step explanation:
In this case we need to test whether the new high-performance wax price is justifiable or not.
It is provided that the wax needs to be very fast specifically the mean time to finish their standard test course should be less than 55 seconds for a former Olympic champion, for the price to justifiable.
So, to test this a sample of <em>n</em> = 8 champion's times are recorded.
A one-sample <em>t</em>-test will be used to perform the test.
The hypothesis to test this is defined as follows:
<em>H₀</em>: The mean time to finish their standard test course is 55 seconds, i.e. <em>μ</em> = 55.
<em>Hₐ</em>: The mean time to finish their standard test course is less than 55 seconds, i.e. <em>μ</em> < 55.
Thus, the correct option is (D).
Answer:
b
Step-by-step explanation:
3x - 7 = x² - 5x + 5
x² - 5x + 5 - 3x + 7 = 0
x² - 8x + 12 = 0
(x-6)(x-2)=0
x = 6
x = 2
Answer:
d (less than or equal to) 10
Step-by-step explanation:
the variable d counts as dollars. the Less than or equal to sign is basically a < sign- underlined (just in case you didnt know).
Hope this helps :)
please leave a like <3
<span>If we assume that T does not change, then PV = k.
If this is true, then P1V1 = P2V2 (Boyle's Law)
P1 = 1 atm (standard pressure)
V1 = 1 L
P2 = ?
V2 = .473L
P2 = 2.11 atm</span><span>
</span>
