The sum of the first n natural numbers and 0=
n*(n+1)/2
Answer:
CBA is a secant.
Step-by-step explanation:
Answer:
16. -y<6
18.t<=-2
20.b<-3/7
22.d>-2.8
Step-by-step explanation:
MO = 12 and PR = 3
Solution:
Given
.
Perimeter of ΔMNO = 48
Perimeter of ΔPQR = 12
MO = 12x and PR = x + 2
<em>If two triangles are similar, then the ratio of corresponding sides is equal to the ratio of perimeter of the triangles.</em>


Do cross multiplication.


Subtract 48x from both sides.


Divide by 96 on both sides, we get
⇒ 1 = x
⇒ x = 1
Substitute x = 1 in MO an PR.
MO = 12(1) = 12
PR = 1 + 2 = 3
Therefore MO = 12 and PR = 3.
We want to find y from the equation

Multiply each side by (y - 2).

Note that (y-2) in the numerator and denominator cancel out on the left side.
Therefore
3 = 8(y - 2)
3 = 8y - 16
Add 16 to each side.
3 + 16 = 8y - 16 + 16
19 = 8y
Divideach side by 8.
19/8 = y
Answer: