1.) 12x^2-7x-10
2.) 10x^2+31x-14
answer:
1. yes
2. no
3. yes
4. no
step-by-step explanation:
- for 1, yes because no matter what they are the signs are still the same
- for 2, no because the signs have changed — 2/5 is positive now
- yes because even though there is addition now, the signs are the same. when you use kcc (keep change change), the sign changes to +
- no, because the coefficient for p is changed, which won't be true or give us the same result
-2x(-4)=8x
-9(-4)=36
8x+36 is the answer
Answer:
16 feet in length.
Step-by-step explanation:
In this situation, you are given the area and the width of the full carpet, furthermore, you must reverse the formula for area to find the length, as so:
<u>Area Formula</u>: A=<em> l • w</em>
<u>Given</u>: 136= <em>l</em> • 8.5
<em>l</em> = 136 ÷ 8.5
<em>l</em> = 16 feet
I hope this was helpful!
X-7/5 = -2
x- 7 = -10
x = -3
The number is -3
