The volume of a cube can be found by cubing the side length. So, since 7 cubed is 343, the answer would either be c or d. Then, since the unit for volume is units cubed, the answer is D.
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Answer:16/243
Step-by-step explanation: multiply the numerator by -2 and multiply the denominator by 3.
Two lines perpendicular to each other having slopes m1 and m2 are related as:
m1 * m2=-1 ...................... (1)
First we find slope m1 of the line y=7/5x-3/5
comparing this equation with slope intercept form y=mx+b,
slope m1=7/5
NOw using rule (1) here to get value of m2
7/5 * m2 =-1
m2 =-5/7...................(2)
Now the line passes through (-4,3) and has slope m2 =-5/7
we use slope intercept form to get the value of y intercept
y=mx+b
3=(-5/7)(-4) +b
3=2.86 +b
b=0.14
At last we plug the value of b and m in slope intercept form to get the final equation as :
y=(-5/7) x + 0.14