Ps: just starting on algebra, so might not be right.
Find the domain by finding where the equation is defined.
Interval Notation:
(−2,0)∪(5,∞)
Set-Builder Notation:
{x|−2<x<0,x>5}
Solve for x
For two functions to be equal, the arguments of each must be equal.
x=12,−1
I hope this isn't wrong and if it is, sorry...
Answer:
The slope of this line is -4
Step-by-step explanation:
To find the slope, you need to solve the equation for y.
4x + y = -9
y = -4x - 9
The slope in this form is always the coefficient of x, making it -4.
Answer:
45
Step-by-step explanation:
let the longer tape be x
shorter tape be y
given
x+y=135⇒equation 1
also given
2y=x⇒equation 2
subtituting eq2 in eq1
2y+y=135
3y=135
y=135/3=45
hope this helps
Answer:
m∡1 = 95°
m∡2 = 85°
m∡3 = 95°
Step-by-step explanation:
m∡1 + 85 = 180; m∡1 = 95°
m∡2 = 85° because it is vertical and congruent to the angle measured 85°
m∡3 = m∡1 = 95° because they are vertical and congruent
Answer:
x=30, <A=60, <C=30
Step-by-step explanation:
A triangle always has its total angles added up to 180 degrees, so we can set up the following equation:
90+2x+x=180
90+3x=180
3x=90
x=30
Since x=30, this means <C is 30 degrees. For <A, it's twice as much as <C, so 2*30=60.
So x=30, <A=60, <C=30
Hope this helped!
