Answer:
a)
.
Substitute all the values in the given relation.
The steps and table is attached below.
b) The relation is not a function.
Since the x =0 and x=3 has the same value. A relation is function when each input has only exact one output. refer the on-to diagram uploaded.
c) The domain is the set of all input values that can be applied into a function y or f(x).
Here all the x values -4,-3,-,-1,0,1,2,3,4 [-4,4] is the domain.
Answer:
c)
Step-by-step explanation:
y = mx +c
c is y-intercept. At y-intercept , x = 0.
So, from the table, c = -5
y = mx - c
Choose any point from the table and Plugin the values in the above equation.
(4 , 1.4)
1.4 = m*4 - 5
1.4+5 = 4m
6.4=4m
6.4/4 = m
1.6 = m
y = 1.6x - 5
Answer:
(-3/70)a
Step-by-step explanation:
Solving for ?, we have ...
70? +3a = 0 . . . . . subtract (7a +3)
? +(3/70)a = 0 . . . . divide by 70
? = -(3/70)a . . . . . . subtract 3/70a
The missing factor is (-3/70)a.
Answer:
The percent charge of Kanna's DS is 50%
Step-by-step explanation:
we know that
A Nintendo DS takes 4 hours to charge fully (100%)
4 hours is the same that 240 minutes
using proportion
Find out what percentage represent 108 minutes
![\frac{100}{240}\ \frac{\%}{min} =\frac{x}{108}\ \frac{\%}{min}\\\\x=100(108)/240\\\\x=45\%](https://tex.z-dn.net/?f=%5Cfrac%7B100%7D%7B240%7D%5C%20%5Cfrac%7B%5C%25%7D%7Bmin%7D%20%3D%5Cfrac%7Bx%7D%7B108%7D%5C%20%5Cfrac%7B%5C%25%7D%7Bmin%7D%5C%5C%5C%5Cx%3D100%28108%29%2F240%5C%5C%5C%5Cx%3D45%5C%25)
Remember that
Kanna Kamui charge her DS from 5%
so
![5\%+45\%=50\%](https://tex.z-dn.net/?f=5%5C%25%2B45%5C%25%3D50%5C%25)
therefore
The percent charge of Kanna's DS is 50%