Answer:
-17
Step-by-step explanation:
-4x-17+x=-3x+----
-3x-17=-3x+---
-3x-17=-3x+(-17)
This rule is known as PEMDAS
In an algebraic equation follow PEMDAS
P= first calculate anything with parantheses
E= then calculate anything with exponents
M= calculate any multiplication
D= calculate any division
A= calculate any addition
S= calculate any subtraction
you must do these in that order
hope this helps:)
Answer:
80
Step-by-step explanation:
I remember studying this but forgot the terminology, but basically the line adds up to 180. I believe it was called Adjacent lines or something, but I don't remember. Hope this sparks your memory :)
Answer:
A
Step-by-step explanation:
x and 45° are corresponding angles and are congruent , then
x = 45 → A
Answer:
Step-by-step explanation:
Given that for a sample size of 25, sample mean = 102 lbs. and sample std deviation = 10 lbs.

(Right tailed test)
Given that we assume population is normally distributed
Test statistic:
Mean difference = +2
Std error of sample = 
t = test statistic = Mean diff/Std error 
degree of freedom
Critical value of t = 1.711
Our test statistic >1.71
Accept alternate hypothesis
Because there is significant difference between the test statistic and test statistic lies above critical value.