Answer:
G ≈ 1.46
Step-by-step explanation:
Given
G = 
, substitute values
G = 
= 
= 
≈ 1.46 ( to 2 dec. places )
Answer:
the answer is 4.625 or 4 6/10
Step-by-step explanation:
I just used a calculator. hope this helps <3
5/12
Explanation: 1/2 minus 1/12 then make them both 12’s for the denominator so it would be 6/12-1/12=5/12
Answer:
m∠2 = 30°
Step-by-step explanation:
Lines AD and BF are perpendicular, so m∠BOD = 90°
m∠1 + m∠2 = 90
plug in given value:
60° + m∠2= 90°
m∠2 = 30°
Answer:
13
Step-by-step explanation:
Its calculate the common difference first.
(95-11)/(n-1).
We also have the sum of these n terms is 689.
So we have the following:
11
+(11+(95-11)/(n-1))
+(11+2(95-11)/(n-1))
+...
+(11+(n-1)(95-11)/(n-1))
This can be re-expressed alittle:
There are (n) amount of 11's in the addition... also 1+2+3+...+(n-1)=(n-1)(n)/2.
So we have the sum is
11(n)+n(n-1)/2×(95-11)/(n-1)
But this equal to 689.
We need to solve the following equation:
11(n)+n(n-1)/2×(95-11)/(n-1)=689
The (n-1)'s in second term can cancel.
11(n)+n/2×84=689
11n+42n=689
53n=689
53n=689
n=689/53
n=13
