If you cut a triangle out of a piece of paper, and move that triangle around (sliding, rotating, reflecting) then that triangle will retain its original shape and size. The three movement types mentioned are rigid motions. They do not change the size or shape of the triangle. If two triangles are congruent, then a sequence of one or more rigid motions can be applied to have them line up together.
Fabric will run you from $1/yd to upwards of $20/yd, depending on what you want. If you're looking for a fairly basic fabric, you're probably going to pay around $5-8 a yard. Patterns have gotten really pricey, but here's a trick--always buy them on sale. Most fabric stores will have one or two pattern brands on sale for a couple bucks a piece at any given time, which beats the heck out of paying $20 for one. Thread is around $2.50 a spool (can be higher, depending on quantity and material), and I want to say a zipper will run somewhere in the vicinity of $3, depending on size and type.
Depending on your fabric, you're probably looking at around $25-30 total.
Answer:
In 180 days the three of them will do their laundry again on the same day.
Step-by-step explanation:
we need to find the least common factor or 9, 10 and 12:
LCM(9, 10, 12) = 180
Answer:
The speed is still water is 
.
Step-by-step explanation:
Dimentionally speaking, speed is distance divided by time. Since, the person is travelling downstream, absolute speed is equal to the sum of current speed and speed of the person regarding current. Both components are constant. That is:
Where:
- Current speed, measured in miles per hour.
- Speed of the person regarding current, measured in miles per hour.
- Distance travelled downstream, measured in miles.
- Time spent on travelling, measured in hours.
Speed in still water occurs when current speed is zero. Then, such variable is obtained after subtracting current speed on both sides of the expression. Hence:
The speed is still water is .
I believe it would be y=-1/3x-2
