A. 54
B. 170
C. 6
D. 13.5
Can you explain how to get the answer?
Answer: C
B. 170
C. 6
D. 13.5
Can you explain how to get the answer?
Answer: C
-
h=2A/(b+B)=2*81/(10+17)=6
-
Right, just one point. Your formula, as written, is ambiguous. Is it
A = 1 / [2(b+B)h]
or is it
A = (1/2) * (b + B)h
I'll assume that this one is what you meant. The first thing I would do is to rearrange the formula so that we have h on one side of the equation and everything else on the other.
First step is to get rid of the (1/2) so I'll multiply both sides by 2 to get...
2A = (b + B ) h
Now divide both side by (b + B) to get h on its own
h = 2A / (b + B)
Now, replace the letters with the number that we have been given.
h = 2 (81) / (10 + 17) = 162 / 27 = 6
So
h = 6, making answer C. correct.
A = 1 / [2(b+B)h]
or is it
A = (1/2) * (b + B)h
I'll assume that this one is what you meant. The first thing I would do is to rearrange the formula so that we have h on one side of the equation and everything else on the other.
First step is to get rid of the (1/2) so I'll multiply both sides by 2 to get...
2A = (b + B ) h
Now divide both side by (b + B) to get h on its own
h = 2A / (b + B)
Now, replace the letters with the number that we have been given.
h = 2 (81) / (10 + 17) = 162 / 27 = 6
So
h = 6, making answer C. correct.
-
Hi,
It is quite simple.
A=1/2*(b+B)*h
Now put the given values
81=1/2*(10+17)*h
81=1/2*(27*h)
81=(27*h)/2
81*2=27*h
162=27*h
h=162/27
h=6.
Answer
It is quite simple.
A=1/2*(b+B)*h
Now put the given values
81=1/2*(10+17)*h
81=1/2*(27*h)
81=(27*h)/2
81*2=27*h
162=27*h
h=162/27
h=6.
Answer
-
A = 1/2(b + B)h.
h = 2A/(b + B)
If A = 81, b = 10 and B = 17,
h
= 2*81/(10 + 17)
= 162/27
= 6
Answer:
C. 6
h = 2A/(b + B)
If A = 81, b = 10 and B = 17,
h
= 2*81/(10 + 17)
= 162/27
= 6
Answer:
C. 6
-
81 = (27h)/2
162 = 27h
h = 6
162 = 27h
h = 6
-
C