Answer:
If a parallelogram has at least one 90 degree angle then its opposite angle is equal and also = 90 degrees.
The 2 remaining opposite angles add up to 180 degrees and since they must be equal, they must be 90 degrees each.
So, we have a quadrilateral with four 90 degree angles and is therefore a rectangle OR it could possibly be a square.
Step-by-step explanation:
Answer:
$75 + $12x
$153 if you add the money she already had, $78 if you don't
Step-by-step explanation:
Twenty percent of 80<span> is 16.
Hoped I helped!</span>
Answer: She can cut 14 pieces
Step-by-step explanation:
Here it is given that , a postal service charges a flat rate of 11.10 and a additional rate of 3 / kg .We need to write the equation in slope intercept form . And let ,
So the total cost would be the sum of flat rate plus the cost of the total weight . Therefore,
Therefore the total cost would be,
Rearrange in slope intercept form , which is y = mx + c , as ;