Answer:
3 times 7 is 21
Step-by-step explanation:
Answer:
$5
Step-by-step explanation:
3/4 is the same as .75;
.75•20=15
20-15=5
Answer:
Step-by-step explanation:
1) f(x) =0 : x² +9 =0 means x² = -9 ..no solutions in R
2)g(x) =0 : (x-9)² =0 means x-9= 0 ..... single solution : 9
3) h(x)=0 : (x+1)² - 9 = 0 means (x+1)² = 3² so x+1=3 or x+1 = -3
two solutions : 2 and -4
Answer:
$18.50
Step-by-step explanation:
$49.50/3months=$16.50
$16.50+$2=$18.50
Answer: y - 19 = 2(x - 5)
Step-by-step explanation:
The point slope form is expressed as
y - y1 = m(x - x1)
Where
m represents slope
Slope, m =change in value of y on the vertical axis / change in value of x on the horizontal axis
change in the value of y = y2 - y1
Change in value of x = x2 -x1
y2 = final value of y
y 1 = initial value of y
x2 = final value of x
x1 = initial value of x
The given points are (5,19) and (-5,-1)
y2 = - 1
y1 = 19
x2 = - 5
x1 = 5
Slope,m = (- 1 - 19)/(- 5 - 5) = - 20/- 10 = 2
To determine the equation, we would substitute x1 = 5, y1 = 19 and m= 2 into the point slope form equation. It becomes
y - 19 = 2(x - 5)