Answer:
the answer is D.
Step-by-step explanation:
multiply each row in the first matrix by each column in the second matrix.
[4*-2+2*7 4*5+2*-1]
simplify each element of the matrix by multiplying out all the expressions.
[6 18]
this matrix is already in the most simplified form.
[6 18]
The answer would be 37 I hope this helped
Answer:
Step-by-step explanation:
You can get your calculator to do this for you. 3 ÷ 4 = 0.75
1 ÷ 0.75 = 1.3333
or you can divide by 3/4 by hand
1
----
1
=====
3
-----
4
1 * 4
--- ----------- ====== 1.33333
1 * 3
Answer:
EZ
Step-by-step explanation:
A. 15 Percent
B. 40 Percent
the discriminant b^2 - 4ac when the equation is in the form of ax^2 +bx+c=0
13x^2-16x = x^2 -x
we need to get in it the standard form
subtract x^2 from each side
12x^2 -16x = -x
add x to each side
12x^2 -15x = 0
12x^2 -15x -0 =0
a=12 b=-15 c=0
b^2 -4ac
the discriminant = b^2
b^2 = (-15)2 = 225
