Combine like terms:
-r-10r
We can always add variables as long as they are the same. So we can not add 10x+20y. That's impossible.
We can't add 3r^2+10r. That's also impossible.
However, we have the same variable, r. So we can add -r-10r. And the answer is:
-11r
Hope this helps! :)
Answer:
7.75
Step-by-step explanation:
7.5+8=15.5
15.5/2=7.75
Answer:
1. a) B = 3.14 × 4² = 50.24 cm²
b) 16 cm
c) V = B.h = 50.24 × 16 = 803.84cm³
2. a) B = 3.14 × 8² = 200.96 cm²
b) 6 cm
c) V = B.h = 200.96 × 6 = 1205.76 cm³
Answer:
No solutions
Step-by-step explanation:
x+2y=2
2x+4y=-8
Multiply the first equation by 2:
2x+4y=4
Since 2x+4y are equal to both 4 and -8, this system must have no solutions. Hope this helps!
Answer:
Biden
Step-by-step explanation: Well I mean Trump done many racist, and mess up stuff so my only choice would be Biden and well hopefully he doesnt do the same thing as Trump