Answer:
x = -5
x = -12
Step-by-step explanation:
- 7x - 60 = x^2 + 10x
add 7x to both sides
x^2 + 17x = -60
add 60 to both sides
x^2 + 17x + 60 = 0
factorise quadratic
(x + 12) (x + 5) = 0
<em>x = -12</em>
<em>x = -12x = -5</em>
Answer:
y=-3/4x-3
Step-by-step explanation:
Answer:
30 times
Step-by-step explanation:
1. find the possibility of the spinner landing on each section
<em>1 / 5 = 0.2</em>
<em />
2. multiply # of spins by the possibility
<em>150 * 0.2 = </em><em><u>30 times</u></em>
Answer:
He used 2 gallons to paint the other room.
Step-by-step explanation:
g=2
Because 2+4=6
If you subtract 4 from 6 it equals 2.
Hopefully it helps.
Your answer would be 8n³ + 6n² - 4n - 20.
The horizontal method for simplifying binomials is to simply multiply the terms in the first bracket by the terms in the second bracket. Written out, this looks like:
(2n² × 4n) + (4n × 4n) + (4 × 4n) + (2n² × -5) + (4n × -5) + (4 × -5).
Then, we just need to do the operations in the brackets, which gives us:
8n³ + 16n² + 16n - 10n² - 20n - 20
And finally we collect the like terms to simplify, which means doing 16n² - 10n² = 6n², and 16n - 20n = -4n, so the final answer is 8n³ + 6n² - 4n - 20.
I hope this helps!
