Answer:
Step-by-step explanation:
I don't think you should be asking Brainly for answer on a quick assessment. This is something you're supposed to have down cold. I'm not judging, just saying, you should know this. :/ why don't you? :/ I'm reporting you to mathpol poplice :P ( don't worry there is no such thing )
1)
4 - 2
put into improper fractions
-
move to same denominators
-
subtract numerators
reduce
2)
3)
4)
5)
do all of 2-5 with the same strategy as I did in 1). Practice this yourself , so you do get it.
Answer:
A
Step-by-step explanation:
The domain of a function is the span of x-values covered by the graph.
From the graph, we can see that it stretches from x=-7 to x=2.
However, note that at x=-7, the dot is closed (shaded in). In other words, x=-7 <em>is</em> in our domain.
On the other hand, at x=2, the dot is not shaded. So, x=2 is <em>not</em> included in our domain.
Therefore, our domain all are numbers between -7 and 2 including -7 (and not including 2).
As a compound inequality, this is:
So, our answer is A.
Also note that we use x instead of p(x) because the domain relates to the x-variable. If we were to instead find the range, then we would use p(x).
Answer:
$5.20
Step-by-step explanation:
A dozen is 12, so multiply by two.
2.60 * 2 = $5.20
<u>We are given the equations:</u>
x - 3y = 2
3x - 4y = 0
writing the system as matrices
=
which is in the form:
AX = B
solving for X(the matrix holding the variables), we get:
X = (A⁻¹)B
<u>Finding A⁻¹:</u>
now, to do this, we need to find the inverse of A
using this formula to find the inverse of matrix A:
<u>Matrix X:</u>
We know that:
X = A⁻¹B
since matrix X is just a matrix with the variables
x = -8/5
y = -6/5