Answer:
170.72
Step-by-step explanation:
Add up all data values to get the sum
Count the number of values in your data set
Divide the sum by the count
to find the mean, we must add al the numbers and divide it by n
that is,
164,175,178,166,167,145,176,150,174,162,180,156,173,158,182,184,160,172,186,168,195,169,171,187,170 we have to add al these numbers and divide it by 25
sum- 4628 divided by 25
=170.72
the answer is in last picture
Answer: a) 26.2 cm
Perimeter of rectangle = 2 (l + w)
2 (l + w) = 2 (9 + 4.1) = 2 (13.1) = 26.2 cm
Hope this helps!
z= 115 (vertically opposite angles)
x= 65 (straight angle) 180-115=65
y=65 (vertically opposite angle)
