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Nesterboy [21]
3 years ago
9

The melting point of each of 16 samples what value of n is necessary

Mathematics
1 answer:
zheka24 [161]3 years ago
3 0
N must be equal to one
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An angle measures 12° less than the measure of its complementary angle. What is the measure of each angle?
ale4655 [162]

Let ∠1 be x

Let ∠2 be x-12

<h3>ATQ,</h3>

\rm(x - 12 )+ x = 90 \degree

\rm2x - 12 = 90 \degree

\rm2x = 90 + 12

\rm2x = 102

\boxed{ \bf \: x = 51 \degree}

<h3>So,</h3>

\sf \: ∠1 = x \\  \sf \:  = 51 \degree

\sf \: ∠2 = x - 12 \\  \sf  = \: 51 - 12 \\  \sf∠2 = 39 \degree

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2 years ago
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A rectangle is enlarged by a factor of 6.
anastassius [24]

Answer:

6 × 20

120 in^2

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in order to find the area of the enlarged rectangle, you can multiply the area of the rectangle by the factor of the rectangle that is enlarged.

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3 years ago
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3x+1=y by substituting
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3 years ago
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Need answer quickly! thank you in advance!
anyanavicka [17]

Answer:

b)(b²-a²)

Step-by-step explanation:

a cotθ + b cosecθ =p

b cotθ + a cosecθ =q

Now,

p²- q²

=(a cotθ + b cosecθ)² - (b cotθ + a cosecθ)²     [a²-b²=(a+b)(a-b)]

=(acotθ+bcosecθ + bcotθ+ acosecθ) (a cotθ + bcosecθ -bcotθ-acosecθ)

={a(cotθ+cosecθ)+b(cotθ+cosecθ)} {a (cotθ-cosecθ)+b (cosecθ-cotθ)}

={a(cotθ+cosecθ)+b(cotθ+cosecθ)} [a (cotθ-cosecθ) + {- b (cotθ-cosecθ)} ]

={a(cotθ+cosecθ)+b(cotθ+cosecθ)} {a (cotθ-cosecθ) - b (cotθ-cosecθ)}

={(cotθ+cosecθ)(a+b)} {(cotθ-cosecθ) (a-b)}

=(cotθ+cosecθ) (a+b) (cotθ-cosecθ) (a-b)

=(cotθ+cosecθ) (cotθ-cosecθ) (a+b) (a-b)        

= (cot²θ-cosec²θ) (a²-b²)                                 [(a+b) (a-b)= (a²-b²)]

= -1 . (a²-b²)                               [ 1+cot²θ=cosec²θ ; ∴cot²θ-cosec²θ=-1]

=(b²-a²)

6 0
3 years ago
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