This is t<span>he </span>
Greatest Integer Function,<span> denoted by </span>
![y = [x]](https://tex.z-dn.net/?f=y%20%3D%20%5Bx%5D)
<span>. For all real numbers, x, <em>the </em></span><em>greatest integer function</em><span><em> returns the largest </em></span><em>integer</em><span><em> less than or equal to x</em>. In essence, it rounds down a real number to the nearest </span>integer<span>.
a.
FALSE. Because f(4.9) will round down to
4.
b.
TRUE. c. no it's not the absolute value function. that has V-shape
d.
TRUE.
e. FALSE. because for every unique x-value you don't always get a unique y value. .... f(5)=5, f(5.1)=5, f(5.76)=5, etc.</span>
For this case we have the following system of equations:
5x + 3y = 17
-8x - 3y = 9
We can rewrite the system like:
Ax = b
Where,
A = [5 3; -8 -3]
b = [17; 9]
x = [x; y]
The determinant of matrix A is given by:
lAl = ((5) * (- 3)) - ((3) * (- 8))
lAl = (-15) - (-24)
lAl = -15 + 24
lAl = 9
Answer:
The determinant for solving this linear system is:
lAl = 9
Answer:
(11/3)x=(2/9)
Step-by-step explanation:
1) Three and two thirds can be simplified to 11/3
2) A number can be rewritten as "x"
(11/3)x=(2/9)
Answer:
7/13
Step-by-step explanation:
Answer:
C,20%
Step-by-step explanation:
First we are told that she has 3 hours to grade 35 student papers ,and she has 30 minutes to grade 5 paper, now we calculate how long it took her to grade 1 paper.
Part1
if 5papers = 30minutes
therefore 1paper = (30*1)/5 = 6mins per paper.
now we are left with 2hrs 30mins(150 mins) to grade 30papers
Part2
if 30papers = 150minutes
therefore 1paper = (150*1)/30 = 5mins per paper.
to calculate how fast she has to be in relation to the first part
we substract :
(6mins- 5mins)/ 5mins *100 =1/5 * 100 = 20%.