Answer:
Paired test
Step-by-step explanation:
The above research is carried out using a set of participants who were used to gather data under two different conditions. When this type of research is performed there is a match between the two conditions based on the subjects used, hence, we can pair the condition with the subject to obtain a matched pair. This sort of test also called the dependent sample t test. Thses type of test is ideal when the data is quantitative and the data obtained from two groups are dependent.
Answer:
Step-by-step explanation:
(3,−1) (4,7)
Slope = y₂-y₁/x₂-x₁
= 7- [-1]/4-3
=7+1/1 = 8/1
= 8
m = 8 ; (4,7)
y-y₁= m(x-x₁)
y - 7 = 8 * (x - 4)
y -7 = 8x - 32
y = 8x - 32 + 7
y = 8x - 25
One ton is 2000 lbs so it is 3 and a half
Answer: There is one solution, -20
Step-by-step explanation:
There is one solution, -20
Hope it helps <3
A) You want to find t such that
.. C(t) = d
.. d = 20 +60*0.95^t
.. (d -20)/60 = 0.95^t
.. log((d -20)/60) = t*log(0.95)
.. t = log((d -20)/60)/log(0.95) . . . . . . time to cool to d degrees (d > 20)
b) C'(t) = 60*0.95^t*ln(0.95)
.. C'(1) = 60*0.95*ln(0.95) ≈ -2.924 °C/min
