Answer:
Step-by-step explanation:
Draw a diagonal (line segment from one corner to the opposite corner). You'll form two right triangles with the diagonal being the hypotenuse of both triangles.
Use the Pythagorean Theorem: (leg)^2 + (leg)^2 = (hypotenuse)^2.
Let h represent the length of the hypotenuse.
The question is just a bit vague. It should say opposite corners. I'm assuming the question does not mean the length of one side!
Answer:
=1.3
Step-by-step explanation:
Combine multiplied terms into a single fraction
0
.
6
5
=
0
.
5
0.65=0.5c
0.65=0.5c
0
.
6
5
=
1
2
0.65=\frac{1c}{2}
0.65=21c
2
Multiply by 1
3
Multiply all terms by the same value to eliminate fraction denominators
4
Cancel multiplied terms that are in the denominator
5
Multiply the numbers
6
Move the variable to the left
Solution
=1.3
We know that
AE*EC=DE*EB-----------> <span>String theorem
AC=8 in----------> AE=AC/2----------> AE=4 in
EC=AE-----------> EC=4 in
BE=2.5 in
DE=?
DE=(AE*EC)/EB----------> DE=</span>(4*4)/2.5---------> DE=6.4 in
<span>
then
diameter=DE+EB--------> 6.4+2.5=8.9 in
the answer is
the diameter is 8.9 in
</span>
<span>solution:
we have, mean =8.4 hrs, std. deviation = 1.8 hrs, sample size n = 40 , X = 8.9
Probability(X<8.9) = ?
we know that, Z = (X - mean)/(std. deviation/(sqrt. n)) = (8.9 - 8.4)/(1.8/(sqrt.40))
Z = 1.7568
from standard normal probabilities table, we have , P(Z<1.7568) = 0.9608
Hence, probability that the mean rebuild time is less than 8.9 hours is 0.9608</span>
Mean of the data set is :
7.5