Answer:
- Volume of cubiod= 108 in³
- TSA of cubiod = 168 in²
Step-by-step explanation:
<u>Given: </u>
Dimensions of cubiod :
- Length = 9 in.
- Breadth = 6 in.
- Height = 2 in.
<u>To Find:</u>
- Volume and Total surface area
<u>Solution</u>:
We know that,
So,
→ Volume = 9 × 6 × 2
→ Volume = 54 × 2
→ Volume = 108 in³
And,
- TSA of cubiod = 2(lb + bh + hl)
Substituting the values, we get:
→ TSA = 2(9 × 6) + (6 × 2) + (9 × 2)
→ TSA = 2(54 + 12 + 18)
→ TSA = 2 × 84
→ TSA = 168 in²
Hence,
- Volume of cubiod= 108 in³
- TSA of cubiod = 168 in²
Answer:
Step-by-step explanation:
Answer:
95% confidence interval for the population mean is 20.255 and 17.945
Step-by-step explanation:
given data
mean = 19.1
standard deviation = 1.5
n = 9
to find out
95% confidence interval for the population mean
solution
we know 95% confidence interval formula i.e.
mean +/- t * standard deviation/
.............1
here t for 9 students 2.31 ( from t table)
so put all value n t standard deviation and mean in equation 1
= mean +/- t * standard deviation/
= 19.1 +/- 2.31 * 1.5/
= 19.1 +/- 2.31 * 1.5/
= 20.255 and 17.945
95% confidence interval for the population mean is 20.255 and 17.945
Answer:
8.49
Step-by-step explanation:
6^2 + 6^2 = 72
√72 = 8.485... = 8.49
Answer:
walk around the river
Step-by-step explanation: