Answer:
Step-by-step explanation:
- So first we have to find out the total number of points possible
- So he took 5 tests each with a max score of 100 points, so that's 500 points total
- The final test will be 150 points, so his whole grade is out of 500+150= 650 points
- He has already scored 460 of those 650 points
- Now how much must he get in the least, on the last test in order to make 90%?
- Now we need to find what 90% of 650 points is
- so
- Then we ask ourselves, how much must we add to 460, to get 585 points? 585-460= 125 points
- So Mark needs to get either 125 points or more on the next test to make 90% or more
- Now let's say the letter
means whatever grade number Mark gets on his next test - This number must not be less than 125, so it must be either equal to or greater than 125 points
- So
The scale factor of the dilation is 2.
Option D is correct.
Step-by-step explanation:
To find the scale factor of dilation, we find ratio of similar sides.
We are given the point (3,5) is moved to (6,10) under dilation.
Scale Factor = 6/3 = 2
or
Scale Factor = 10/5 = 2
The scale factor of the dilation is 2.
Option D is correct.
Keywords: scale factor of the dilation
Learn more about scale factor of the dilation at:
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Not sure about 1 and 8, I think there trapezoids but not sure.
2 is a square
3 is a rectangle
4 and 10 are a rhombus
5 and 11 are parallelograms
6 is a kite
7 is a square
can't really see 9
can't really see 12
Hope that helped.
Since the properties of a rhombus tells us that both pairs of opposite sides are congruent we can therefore conclude that DB will be 12
