Answer: x= 7
Step-by-step explanation:
John has a total of 26 apples which is 3 times and 5 more than Peter's apple . Find the number of apple Peter has.
Let Peter's number of apples be x
This can be written as:
3x + 5 = 26
Collect like terms
3x = 26 - 5
3x = 21
x = 21/3
x = 7
Peter has 7 apples.
Answer:
95% confidence interval for the population variance is (2.89, 5.11)
Step-by-step explanation:
Confidence Interval (CI) = variance + or - (t×s)/√n
Standard deviation (s) = 2, variance (s^2) = 2^2 = 4, n = 15, degree of freedom = n - 1 = 15 - 1 = 14
t-value corresponding to 14 degrees of freedom and 95% confidence interval is 2.145
Lower bound = variance - (t×s)/√n = 4 - (2.145×2)/√15 = 4 - 1.11 = 2.89
Upper bound = variance + (t×s)/√n = 4 + (2.145×2)/√15 = 4 + 1.11 = 5.11
95% confidence interval is (2.89, 5.11)
Answer:
The correct answer is A)
PRISM.
Explanation:
Any 2-dimensional shape formed with straight lines is a polygon. Examples of polygons are:
- Quadrilaterals
- Hexagons
- Pentagons, and
- Triangles are all examples of polygons. The name of polygons are usually indicative of the number of sides they have.
Cheers!