Answer:
He earned an average of 71 points per test.
Step-by-step explanation:
Divide the total number of points by the amount of tests to find the average (mean.)
Recall that a dilation with center (0, 0) and scale factor
maps
onto
.
Now, triangle ADE is formed by

Whereas triangle ABC is formed by

In other words, the coordinates of B and C can be obtained by multiplying by 2 the coordinates of D and E.
This means that you get ABC from ADE by dilating with center (0,0) and scale factor 2.
Answer:
4,151,347,200
Step-by-step explanation:
To find how many ways the train can be made up we use the permutation formula and the values given.
n = 16
k = 9




So there will be 4,151,347,200 different ways that the train can be made.
Hay 10 decímetros en un metro
Answer:
I'm not 100% sure but I believe the answer is A