Answer:
1204.23
Step-by-step explanation:
4% increase of 1235=1254.4
4%decrease of 1254.4=1204.23
Answer:
y = -2x + 7
Step-by-step explanation:
tbh too lazy to explain
Answer:
from the t-distribution table, at df = 7 and t = 2.23
Lies p-values [ 0.05 and 0.025 ]
Hence;
0.025 < p-value < 0.05
Step-by-step explanation:
Given that;
= 6.5 gpm
μ = 5 gpm
n = eight runs = 8
standard deviation σ = 1.9 gpm
Test statistics;
t = (
- μ) / ![\frac{s}{\sqrt{n} }](https://tex.z-dn.net/?f=%5Cfrac%7Bs%7D%7B%5Csqrt%7Bn%7D%20%7D)
we substitute
t = (6.5 - 5) / ![\frac{1.9}{\sqrt{8} }](https://tex.z-dn.net/?f=%5Cfrac%7B1.9%7D%7B%5Csqrt%7B8%7D%20%7D)
t = 1.5 / 0.67175
t = 2.23
the degree of freedom df = n-1 = 8 - 1
df = 7
Now, from the t-distribution table, at df = 7 and t = 2.23
Lies p-values [ 0.05 and 0.025 ]
Hence;
0.025 < p-value < 0.05
Answer:
Use the cosine function where x° = 63.43°
Step-by-step explanation:
In relation to angle x°, side 3 is adjacent, and side 3√5 is the hypotenuse. Therefore, the trig function that uses the adjacent and hypotenuse is the cosine function. You would then set your equation up and solve for x°:
cos(x°) = adjacent/hypotenuse
cos(x°) = 3/(3√5)
x° = cos⁻¹(3/(3√5))
x° = 63.43°