Answer:
A
Step-by-step explanation:
Given 2 similar figures with sides in the ratio a : b
Then the ratio of their areas is a² : b²
Hence
ratio of sides = 2 : 9, then
ratio of areas = 2² : 9² = 4 : 81 → A
Answer:
y=1/2x+2
Step-by-step explanation:
Answer:
He will ned 1 dollar more
Step-by-step explanation:
50x.06=3 so that is the sales tax subtract it by 2 and he will need 1 more dollar
Step-by-step explanation:
The centroid divides the length of each median in 2:1 ratio.
The length of the part between the vertex and the centroid is twice the length between the centroid and the mid-point of the opposite side.
In case of median KM,
K is the vertex and M is the midpoint of the side JL
KT = 2× TM
5y+3 = 2(y+3)
5y+3= 2y +6
5y-2y= 6-3
3y = 3
y= 1
We have to prove that 
is irrational. We can prove this statement by contradiction.
Let us assume that is a rational number. Therefore, we can express:
Let us represent this equation as:
Upon squaring both the sides:
Since a has been assumed to be rational, therefore, 
must as well be rational.
But we know that 
is irrational, therefore, from equation 
the expression must be irrational, which contradicts with our claim.
Therefore, by contradiction, is irrational.
