Answer:
7/10
Step-by-step explanation:
Get a common denominator
1 - 3/10
10/10 - 3/10
7/10
When 1 is added to another 1 they join together to form a 2. Bruh idk what 1+1 long method is. But I hope it helped.
Answer: the t-test statistic is - 1.77
Step-by-step explanation:
For the null hypothesis,
H 0: μ = 2600
For the alternative hypothesis,
H a: μ ≠ 2600
This is a two tailed test
Since no population standard deviation is given, the distribution is a student's t.
Since n = 50,
Degrees of freedom, df = n - 1 = 50 - 1 = 49
t = (x - µ)/(s/√n)
Where
x = sample mean = $2450
µ = population mean = $2600
s = samples standard deviation = $600
Therefore,
t = (2450 - 2600)/(600/√50) = - 1.77
16 dollars per gallon for three gallons is 48 dollars.
To find this all you have to do is 16 times 3
Answer:
y = - 3x² + 5
Step-by-step explanation:
The equation of a function is given by y = - 3(x - 2)² + 1 ...... (1)
Now, if we sift the graph of the above equation upward by 4 units, then y in the equation (1) shall be replaced by (y - 4)
Again, if we sift the graph of the above equation(1) towards left by 2 units, then x in the equation (1) shall be replaced by (x + 2)
Therefore, the final equation will be
(y - 4) = - 3(x + 2 - 2)² + 1
⇒ y = - 3x² + 5. (Answer)
