Answer:
Step-by-step explanation:
To the evaluate -5.3+7.9
We get
2.6
Therefore the error
=2.6-2.4
=0.2
Answer:
1. x=6
2. x=9
Step-by-step explanation:
1.

2.

<u>Written Explanation: </u>
1.
-2x(3x+9)=-54
-6x-`8=54 (Distributive property)
Add 18 to both sides
-6x=-36
Divide both sides by -6 (negative divided by a negative equals a positive)
x=6
2.
2(3x+4)-3x=35
6x+8-3x=35 (distributive property)
3x+8=35 (combine Iike terms and then subtract them 6x-3x=3x)
Subtract 8 from both sides
3x=27
Divide both sides by 3
x=9
Answer:
3.1 is range 6.3 minus 3.2 equals 3.1
Step-by-step explanation:
If x − 2 is a factor of p(x), then p(2) will equal 0.
p(x) = x⁴ − 3x² + 2x − 8
p(2) = 2⁴ − 3(2)² + 2(2) − 8
p(2) = 16 − 12 + 4 − 8
p(2) = 0
So x − 2 is indeed a factor of p(x).
I'm guessing 90 hours because if you add their hours together it'll be 180 if they work together it'll be like half the time which is 90