Isaac And his brother and sister Jake,Rosie was playing on the Xbox one Isaac spend 12x13 dollar on a game jake spend 52x12 in a
2 answers:
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Answer:
see explanation
Step-by-step explanation:
Given that M is directly proportional to r³ then the equation relating them is
M = kr³ ← k is the constant of proportion
To find k use the condition when r = 4, M = 160, thus
160 = k × 4³ = 64k ( divide both sides by 64 )
2.5 = k
M = 2.5r³ ← equation of variation
(a)
When r = 2, then
M = 2.5 × 2³ = 2.5 × 8 = 20
(b)
When M = 540, then
540 = 2.5r³ ( divide both sides by 2.5 )_
216 = r³ ( take the cube root of both sides )
r = = 6
Answer:
This the correct answer
Answer:
Step-by-step explanation:
With the given information, use the point-slope formula to write the equation of the line. Substitute values for the
,
, and
to find the answer.
represents the slope, so substitute -5 in its place. The
and
represent the x and y values of one point the line intersects, so substitute 4 for
and -6 for
. This gives the following equation: