Which expressions are equivalent to (4⋅a)⋅2 ?
1 answer:
Answer:
4⋅(a⋅2)
2⋅(4⋅a)
8a
Step-by-step explanation:
(4⋅a)⋅2
4⋅(a⋅2) This is the same by the associative property of multiplication
2⋅(4⋅a) This is the same by the associative property of multiplication and the communicative property of multiplication
4⋅2⋅a⋅2 This brings in an extra 2 so it is not the same.
8a 4*2 = 8 so this is the same
4⋅2+a⋅2 This is the not the same 8+2a is not the same as 8a
You might be interested in
Both of the other angles should be 45. 180-90=90. 90 divided by 2 equals 45
Answer:
Step-by-step explanation:
Given
Required
Find the measure of a
Since there is no diagram to support the question, we'll assume that:
This gives:
Subtract 22 from both sides
Actually, there would be no solution because the w's cancel out so that leaves -6=-9 and that is not true.
Answer:
4 1/5 gallons per minute
Step-by-step explanation:
Divide gallons by minutes.
(9 4/5 gal)/(2 1/3 min) = (49/5 gal)/(7/3 min) = (49/5)(3/7) gal/min
= 21/5 gal/min = 4 1/5 gal/min
Answer:
y=3/2(x-4)
Step-by-step explanation:
y-y1=m(x-x1)
m=(y2-y1)/(x2-x1)
m=(-6-0)/(0-4)
m=-6/-4
m=6/4
simplify
m=3/2
y-0=3/2(x-4)
y=3/2(x-4)
