Answer:
The answer is B.
Step-by-step explanation:
r- (-12.4) = -15.8
r + 12.4 = -15.8
-12.4 -12.4
r = -28.2
Answer:
340 phones
Step-by-step explanation:
Make an expression
She repairs 10 phones each day, d.
Each day she repairs 10 phones, it is 10 phones off the total number (450) she has to repair, so we can subtract 10d from 450.
450-10d
We want to find how many she has left after 11 days, so we can substitute 11 in for d
450-10(11)
Multiply
450-110
340
She will still have 340 phones left to repair
Are you sure you meant to type "

" ? or did you mean "

"
19^2 + x^2 = 21^2
19^2 = 361
21^2= 441
361 + x^2 = 441
x^2 = 441-361 = 80
x = sqrt(80) = 8.944 round to nearest tenth = 8.9
Answer:
these .56 because they are bigger
Step-by-step explanation:
hope this helps