Answer:
its C
Step-by-step explanation:
PLEASE HELP!!!!!!! 20 points
Answer:
Volume
Figure 1 = 56 cube units
figure 2 = 60 cube units
figure 3 =72 cube units
Surface area
Figure 1 = 100 square units
figure 2 = 104 square units
figure 3 =108 square units
Step-by-step explanation:
From the all figure we can see that each figure made up of unit cubes
Figure 1
Surface area
Large cuboid portion =2 x (6 x 2 ) + (6 x 4) + 2 x(4 x 2) + 16
= 24 + 24 + 16 + 16 = 80 unit square
Small cuboid portion = (4 x 2) + (2 x 2) + (4 x 2) = 8 + 4 + 8 = 20
Total surface area = 80 + 20 = 100 unit square
Volume
Small cuboid = 4 x 2 = 8
Large cuboid = 6 x 4 x 2 = 48 cube unit
Total volume = 48 + 8 = 56 cubs units
Figure 2
Surface area
Total surface area =24 + 18 + 36 + 20 + 6 = 104 unit square
Volume
Small cuboid = 6 x 2 = 12
Large cuboid = 6 x 4 x 2 = 48 unit square
Total volume = 48 + 12 = 60 cube units
Figure 3
Surface area
Total surface area = 48 + 36 + 24 = 108 square units
Volume
Total volume = 6 x 4 x 3 = 72 cube units
Answer:
B
Step-by-step explanation:
The others are of the form y=mx+c which is the definition of a linear function
12.4 , 13.7 , 12.0 , 14.7 , 15.2 , 11.9 , 15.6
13.8 , 14.2 , 12.5 , 15.0 , 16.0 , 13.1 , 11.7
If the class creates a histogram of the data in the table, how many students are in the range 12 cm to 13.9 cm?
1) 3
2) 4
3) 7
4) 8
The correct answer is:
4) 8
Explanation:
We want to find the frequency of this range. To do this, we count how many values fall between 12.0 and 13.9. There are 8 total values that do this, so the answer is 8.
In the given data set, there are 7 values in the given range.
Here we just need to find the number of values between 12cm and 13.9 cm, from the given table, these are:
12.1 cm, 13.5 cm, 12.4 cm, 13.7 cm, 13.8 cm, 12.5 cm, 13.1 cm
So there are 7 values in the given range, which means that 7 students are in the range of 12cm and 13.9cm.
Then the correct option is the third one.
If you want to learn more about data sets:
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b. –6 inches
c. 6 inches
d. 8 inches
Answer:
B. -6 inches
Step-by-step explanation: