Answer:
2
x
3
−
4
x
2
+
24
x
−
15
Step-by-step explanation:
Simplify each term.
x
3
+
9
x
−
8
−
4
x
2
+
15
x
−
7
Answer:
1. 5y+20
2. r = -4
3. 12x+60
Step-by-step explanation:
Answer:
Step-by-step explanation:
hello :
y = 6x - 10 (*)
2x + 3y = 10...(**)
by (*) put this value of y into (**) : 2x+3(6x-10)=10
2x+18x-30 = 10
20x=40 so : x= 2 but y = 6x - 10 y = 6(2)-10 =2
one solutions (2,2)
Answer:
x=-7
Step-by-step explanation:
Translate into an equation.
“A number” + -2 = -9
Assign “a number” to be “x”
X+-2=-9
Add 2 on both sides to even it out and get x
X-2+2=-9+2
X=-7
The number is -7. :)
Answer:
5. A.
6. F
Step-by-step explanation:
5. Perpendicular lines have slopes that are negative reciprocals of one another, so slope is 3
y = 3x + b
using coordinates (-6,3)
3 = 3(-6) + b
b = 21
y = 3x + 21
6. I think F is the right answer