Fine the following when a=-2, b=4, c=7
7b-12 over 2ac
1 answer:
Hello!
You have to put the numbers in for the variables in the equation

Put the numbers in

Combine like terms


The is is

or about -0.29
Hope this help!
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Answer:
261 km
Step-by-step explanation:
given,s=constant
d1/T1=d2/T2
d1=90km,t1=50 min
d2=? ,t2=(120+25)min
=145min
therefore,d2=(90×145)/50
=261 km
Answer:
4.375 sq. in.
Step-by-step explanation:
multiply 1.25 by 3.5 and you get 4.375
Answer:
-n← 2 2/3
Step-by-step explanation:
first combine like terms, and then simplify
Answer:
parellel planes do not intersect
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