Answer:
1/2 (a+b)h
Step-by-step explanation:
To find an area of a trapezoid you need to use a formula. The ''answer'' is the formula, which will help you solve your question.
Answer: 2.5r + 6 ≤ 50
Step-by-step explanation:
Answer:
The sample size is
Step-by-step explanation:
From the question we are told that
The margin of error is 
The standard deviation is 
From the question we are told the confidence level is 94% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of
is
Generally the sample size is mathematically represented as
=>
=>
Answer:568.58
Step-by-step explanation:
Tan(35)=h/1200
1200tan(35)=h
568.57766=h
568.58
Answer:
it should be 2/12 and 9/11
Step-by-step explanation: