Answer:
C. Because they have the same slopes and different y-intercepts
Step-by-step explanation:
690 because 86 is rounded up to 90
Answer:
48 m²
If AB is 4 m and BC is 12 m then AD 12 m and you multiply 4 × 12 in it is 48 m²
Answer:
+/- 1.9983
Step-by-step explanation:
The critical values for a confidence interval for the population mean, with population standard deviation not known, are obtained from the student's t distribution.
The sample size is given as 64. The degrees of freedom will thus be;
sample size - 1 = 64 - 1 = 63
The confidence level is given as 95%. The level of significance will thus be;
100 - 95 = 5%.
The area in the right-tail will thus be 2.5%. Therefore, we looking for a t-value such that the area to its right is 2.5% and the degrees of freedom being 63. From the t-tables we have;
+/- 1.9983
Amy baked 4 batches of cookies. Each batch contains 12 cookies each. At school, her friend gave her 3 more cookies. How many cookies does she have in all?
