On a trip to Waco, Texas, Steve drove at a constant rate of 60 miles per hour for 3 hours. Steve’s brother makes the same trip i
n 2.5 hours. About how fast does Steve’s brother drive on this trip ?
A. 67 miles per hour
B. 72 miles per hour
C. 75 miles per hour
D. 50 miles per hour
A. 67 miles per hour
B. 72 miles per hour
C. 75 miles per hour
D. 50 miles per hour
1 answer:
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Answer:
a= or
Step-by-step explanation:
Equate the equation to zero
-9a+2=0
-5a-4a+2=0
5a(2a-1)-2(2a-1)=0
Write out the factors
(5a-2)(2a-1)=0
Then equate each factor to zero
5a-2=0 OR 2a-1=0
5a=2 OR 2a=1
a= OR a=
a= or
Answer:
Since and
, then the quadrilateral ABCD is a parallelogram.
Step-by-step explanation:
First, we label each point of the quadrilateral with the help of a graphing tool. If the quadrilateral ABCD is a parallelogram, then and
. If we know that
,
,
and
, then the measure of each vector is, respectively:
Since and
, then the quadrilateral ABCD is a parallelogram.
