Stretch x value by 5 and rotate it 90 degrees around the y axis
10
Is matrix B a linear operator for matrix A?
yes
10
T or F? Matrix multiplication is commutative (so A * B = B * A in all cases)
False
15
T or F? It's possible to multiply two vectors and get a matrix as the solution.
True
10
Solve this.
[[-1/12, 5/12], [ 1/3, -2/3]]
15
Find the inverse of matrix C
Does not exist
15
What's the kernel of D?
(0,0)
10
T or F? It is possible to solve a linear system of equations in a single line of code in Python.
True
10
T or F In Python, to perform matrix multiplication you can either use the .dot() function or the * operator.
False
10
Kelly wants to do 3 fun activities this summer. She made this list of options. How many ways can she choose 3 activities if she doesn't care about the order in which she does the activities??
8!/((8-3)! 3!) = 112
15
Kelly wants to check 3 things off her bucket list this summer. She made this list of options. How many different ways can she check 3 things off if she cares about the order in which the items are accomplished?
8!/((8-3)! = 336
15
Kelly wants to do 3 fun activities this summer. She wants to do 1 item from her outdoor list, 1 item from her entertainment list, and 1 item from her visit list. How many ways can she select the 3 items?
3*2*3 = 18
15
Suppose we are adding 4 bit unsigned binary numbers. Indicate the solution or say that overflow occurs.
overflow
15
Suppose we are adding 4 bit twos complement binary numbers. Indicate the solution or say that overflow occurs.
0011 (ignore the extra bit)
15
Convert the base 16 number 4119 to base 10
16,665 = (4096*4) + (256*1) + (16*1) + (1*9)
15
convert the base 10 number 1010 to 12-bit twos complement base 2