4(a-2)=3(a+4)
4a-8=3a+12
a=20
Probably true
you can test it too
We
let r be the rate in parts per minute at which the lawn sprinkler would fill the pool if use alone then
If the handheld hose and the lawn sprinkler are used together, we have this equation:
5/r + 5/8 = 1
Simplifying this expression,
5(8) + 5r = 1
Answer:
Option b
Step-by-step explanation:
Given that For a particular course, the pass rate for the 16-week format is 59%. A team of faculty examine student data from 40 randomly selected accelerated classes and determine that the pass rate is 78%.
we have to find whether taking a class in a short-term format (8 weeks instead of 16 weeks) increase a student’s likelihood of passing the course
Since pass rate for 16 weeks is 59% we check whether for 8 weeks is more than this.
So correct null and alternative hypotheses for this research question
would be:
b.H0: p = 0.59; Ha: p > 0.59
Option b is right.
z = 2
'Answer:
Step-by-step explanation:
z + 22
---------- = 12
z
Multiplying both sides by z results in
z + 22 = 12z
Combining the z terms, we get 22 = 11z, which yields z = 2.
