2 answers:
Answer:
B. Has one solution
Step-by-step explanation:
It can be solved simultaneously to get the values of x and y
Answer:
c
Step-by-step explanation:
it only has one solution
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Answer:
A
Step-by-step explanation:
he reads 2 pages per minute multiply 120 by 2
A=4-3b
subtract 4 from both sides
a-4=-3b
divide by -3 for both sides
(a-4)/-3 = b
Answer:
C=29
Step-by-step explanation:
a^2 + b^2 = c^2
21^2 + 20^2 = c^2
441 + 400 = c^2
841 = c^2
\sqrt(841) = \squrt(c^2)
29 = c
Answer:
n≥15
Step-by-step explanation:
3n≥45
/3 /3
n≥15
Answer:
QR and ST
Explanation:its right
