Answer:
5(-3) would be the first step
Step-by-step explanation:
5 * -3 = -15
-15 + 6 = -9
-9 is the answer
You need to put the x or y value in the other equation ;
For example excersize a
It given that
Y=x^2+3x-1
Then you put it on the first equation :
x+x^2+3x-1=4
And then you solve it
x+x^2+3x-1-4=0
4x+x^2-5=0
We will make the order to seem easier
x^2+4x-5=0
x1=-5
x2=1
Then you put the x1,2 that you found on the second equation :
y=(-5)^2+3*(-5)-1=9
y=1^2+3*1-1=3
For summary :
x1=-5
x2=1
y1=9
y2=3
make them both to where they have the denominator of 18
that makes 3/2 equal 27/18 and 1/9 equal 2/18
so now you have
27/18x+5=2/18
subtract 5 from the other side
so now you have 27/18x+2/18-5
then subtract 2/18 from 27/18 to get 25/18x=-5
then divide 25/18 by -5 and your answer will be
-5/18
Answer:
make 360×each number given/15 students to start drawing
360×7/15=168°
360×5/15=120°
360×2/15=48°
360×1/15=24°
now draw each one from the radius give to the clockwise
if you don't know what's clockwise direction, see it from your house or tell anybody in your home to tell you where is clockwise
after you finish drawing, label each section by writing the names on the correct sections ( you can write in or out of the circle)
