Answer:
39 and 19
Step-by-step explanation:
sum: a+b=58
larger: a-b=20
(a+b)-(a-b)=58-20
2b=38 --> b = 19, a=39
Answer:
r=3 where r is the common ratio
Step-by-step explanation:
The sum of geometric progression for n terms is given by:
, where is the
first term of the series and r is the common ratio.
Now, according to the question, there are four terms and they form a geometric progression. So sum of four terms is given as and .
Also according to the above formula:
Using the values as given in the question into the above equation we get:
[ Using formula ]
which is the required answer.
Answer:
Step-by-step explanation:
The area of a triangle is
A=bh/2 where b=base and h=height. So we first have to solve for h
8^2+h^2=12^2
h^2=12^2-8^2
h^2=144-64
h^2=80
h=(80)^(1/2), now we can find the area
A=8(80^(1/2))/2
A=4(80^(1/2)
A=35.78cm
Answer:
3/4.
Step-by-step explanation:
9 / 26 * 13/6 Note 9/6 = 3/2 so we have:
3 * 26 * 13/2
= 39 / 52
= 3/4.