For question 2, the answer is 120 cm^2
The formula is SA = b + 1/2 ps
p = perimeter
s = slant height
this is a square, so all the sides are equal. So 6 cm x 4 = 24 cm, this is the perimeter of the base.
then multiply this by the slant height, and you get 192.
192 x 1/2 = 96.
96 + 24 (the area of the base) = 120.
120 = 24 + (1/2 x 24 x 8)
A. 8.8 students per day on average were absent.
1) If the absence recorded was:
On Monday: 11
On Tuesday: 9
On Wed: 6
On Thu: 9
On Fri: 9
2) Since the number of weekdays were 5 we can calculate the mean of absent students by adding all those absences and dividing by 5
So, 11+9+6+9+9+9 =44
Dividing by 5
So the mean or the average of the absence was 8.8
Formula- A = π r²
a= area
r= radius
diameter of the circle- 3.75 x 2 = 7.5
hope this helps :)
Answer:
54kg
Step-by-step explanation:
Body weight = B
Tail weight = T
Head weight = H
Total weight = F
Use equation = B + T + H = F
We are told that T = 9kg, H = T + (1/3) x B, B = H + T
We have 3 equations and 3 unknowns, solve the system of equations to find W.
B = H + 9
H = 9 + 1/3 x (H+9)=9+H/3+3 --> 2/3 x H = 12 --> H = 18
B = 18 + 9 = 27
F = 18 + 27 + 9 = 54kg
The answer is D because when you insert it into a calculator it gives you D. Yet, if you do it manually you still get the same number .
