3 years ago

2) d-e- and p = Evaluate (2e - d) 2f A) 24 B) 1 D)

Mathematics

1 answer:

MariettaO [177]3 years ago

5 0

Answer:

i dont no

Step-by-step explanation:

you may solve by u

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The perimeter of a triangle is 34.25 inches long .The first two sides are 12.903 inches and 9.78 inches . What is the third side

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3 years ago

20 POINTS!!

BARSIC [14]

Answer:

r = 8

Step-by-step explanation:

Given that M is directly proportional to r² then the equation relating them is

M = kr² ← k is the constant of proportionality

To find k use the condition when r = 2 , M = 14

k = $\frac{m}{r^{2} }$ = $\frac{14}{4}$ = $\frac{7}{2}$

M = r² ← equation of proportion

When M = 224, then

224 = $\frac{7}{2}$ r² ← multiply both sides by 2

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r² = 64 ( take the square root of both sides )

r = $\sqrt{64}$ = 8

have wonderful day

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