Answer:The number of the 2- pound bags is 56 and the number of the 5- pound bags is 140
Step-by-step explanation:
Let the number of the 2- pound bags and the 5- pound bags be n since they used the same number.
5n + 2n = 196
7n=196
n= 196/7
n= 28
Therefore the number of the 2- pound bags is 2× 28= 56
and the number if the 5- pound bags is 5×28= 140
X>17
add 7 to 10 and you get 17 :)
Parenthesis first, (4*8)= 32 * 7n = 224n
A rectangle is a parallelogram with four right angles.
That's why in order to prove that LMNP is rectangle you have to show that LP is perpendicular to PN.
Solution:
The coordinates of vertices are L(-4,1), P(-3,-1) and N(3,2), then
.
Find the dot product:
.
Since the dot product of two vectors is equal to zero, these vectors are perpendicular.
LMNP is a parallelogarm, then
.
You show that all angles are right, this means that parallelogram LMNP is a rectangle.
Answer: correct choice is D.