Answer:
49
Step-by-step explanation:
The area of a shape is the amount of space it can occupy.Laura's design will be light enoughThe shape is given as a trapezium (see attachment).First, calculate the height (h) of the trapezium using the following Pythagoras theorem 52=h2+x2 Where: x=11−92=1 So, we have: 52=h2+x2 52=h2+1225=h2+1 Collect like terms h2=25−1 h2=24 Take square root sh=4.90The area of the shape is then calculated as follows: Area=12(11+9)×h Area=12(11+9)x4.90 Area=12×20×4.90 Area=10×4.90 Area=49
The area of the shape is 49 square inches.Hence, the shape will be light enough (because 49 is less than 80
Answer: 2.125 ft
Step-by-step explanation:
17/8=2.125
In order words each hole needs to be 2 ft and 1 and 1/2 inches apart.
Answer:
a) Null hypothesis:
Alternative hypothesis:
b) (1)
Where
c)
d) For this case we see that so then the answer for this cae would men
Step-by-step explanation:
Information given
represent the number of men with smartphone
represent the number of women with smartphone
sample of men selected
sample of women selected
represent the proportion of men with smartphone
represent the proportion of women with smartphone
represent the pooled estimate of p
z would represent the statistic
represent the value
Part a
We want to test if we have difference in the proportion owning a smartphone between men and women, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
Part b
The statistic for this case is given by:
(1)
Where
Part c
Replacing the info given we got:
Part d
For this case we see that so then the answer for this cae would men
3) 2 to 3
4) 4 to 5
5) 5 to 6
6) 5 to 7
ur welcome kid
Answer:
61
Step-by-step explanation:
Definition of conguency
*figure on the right is rotated a bit