Answer: a) 0.74, b) (0.70, 0.778)
Step-by-step explanation:
Since we have given that
Total number of chemical companies n = 500
Number of companies certified = 370
So, 
At 95% level of confidence, z = 1.96
So, interval would be
Hence, a) 0.74, b) (0.70, 0.778)
Based on the example given, I'm guessing you're supposed to round to the nearest thousand, so that's what I'll do.
2. Round 5339 to 5000, multiply by 6 to get the estimate of 30,000.
3. Round $879 to $1000, multiply by 8 to get the estimate of $8000.
4. Round 3182 to 3000, multiply by 5 to get the estimate of 15,000.
5. Round 4616 to 5000, multiply by 3 to get the estimate of 15,000.
6. Round $2854 to $3000, multiply by 9 to get the estimate of $27,000.
7. Round 7500 to 8000, multiply by 2 to get the estimate of 16,000.
8. Round 948 to 1000, multiply by 7 to get the estimate of 7000.
Answer:
C. vertical
Step-by-step explanation:
The two angles are not adjacent to each other, which eliminates A and B already.
MPB and KPT, when highlighted, shows that they are vertical angles.
They got created by two intercepting lines.
Our best answer is C.
Answer:
-43
Step-by-step explanation:
Follow PEMDAS as well as the left -> right rule.
Note that: PEMDAS =
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
First, solve the multiplication:
23 + (5 * 3) - 100 + 19
23 + (15) - 100 + 19
Simplify. Follow the left-> right rule:
(23 + 15) - 100 + 19
38 - 100 + 19
(38 - 100) + 19
-62 + 19 = -43
-43 is your answer.
~
Answer:
2,601
Step-by-step explanation:
You have to find the hypotenuse using the formula 
to find the length of the square which would be c. 
giving you an answer of 51. To find the area of the square you need to multiply 51 to itself so, 
.
