25. You have to do 65x65-(60x60) and the square root it
angle ABC and angle DEF are congruent because both the angles (ABC and DEF) are alternate exterior angles of two parallel lines and a transversal.Also, angle CBE and and DEB are congruent because alternate interior angles formed by parallel lines and a transversal are also equal.
Answer:
We conclude that the mean strength is equal to 3400 psi.
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = 3400 psi
Sample mean, = 3450 psi
Sample size, n = 12
Alpha, α = 0.051
Population standard deviation, σ =75 psi
First, we design the null and the alternate hypothesis
We use one-tailed(right) z test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We fail to reject the null hypothesis and accept the null hypothesis. Thus, we conclude that the mean strength is equal to 3400 psi.
400,000 - 100,000 = 300,000
hope this helps
Well first of all you use y2-y1
————
X2-X1
And you will find the slope. Then use y=Mx+b