Answer:
B. 29.7
Step-by-step explanation:
All you have to do is find the area of the half circle (r² × 3.14 × ½) and subtract that from the initial area of the rectangle ( 9×4 ) After doing that it gives you 29.7ft².
Answer:
Hi
Step-by-step explanation:
I am just reply to see if i really understand that problem
Let's assume s the present age of the son, and f the present age of the father.
The age of the son After 10 years is equal to the age of the father before 20 years:
s+10=f+10-20
f=3s
=> s+10=f-10
=> s+10=3s-10
=> 2s=20
=> s=10 and f=30
Answer:
Roots and exponents, Addition and subtraction.
Answer:
Its typically helpful to start with a drawing. Here is
A
B
C
D
as given by the problem.
Geogebra
Geogebra
We are looking for the length of the shorter diagonal, which is segment
B
D
. This segment forms a triangle with the two known sides. Since we know two sides and the angel connecting them, we can use the law of cosines to solve for the unknown segment.
http://mathworld.wolfram.com/LawofCosines.html
http://mathworld.wolfram.com/LawofCosines.html
The law of cosines tells us that
c
2
=
a
2
+
b
2
−
2
a
b
cos
(
C
)
for the triangle labeled above. If we choose our two known sides for
a
and
b
and our known angle for
C
, we can solve for the length of the diagonal,
c
.
c
2
=
14
2
+
8
2
−
2
(
14
)
(
8
)
cos
(
60
o
)
≈
12.17
Step-by-step explanation:
sorry about the last answer i thought i was on another question
Answer:
4(6+7) GCF: 4
Step-by-step explanation: