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Neko [114]
3 years ago
12

How to answer 100x^2+60x+9

Mathematics
1 answer:
iVinArrow [24]3 years ago
3 0

Answer:

Step-by-step explanation:

Rewrite

100

x

2

100

x

2

as

(

10

x

)

2

(

10

x

)

2

.

(

10

x

)

2

+

60

x

+

9

(

10

x

)

2

+

60

x

+

9

Rewrite

9

9

as

3

2

3

2

.

(

10

x

)

2

+

60

x

+

3

2

(

10

x

)

2

+

60

x

+

3

2

Check the middle term by multiplying

2

a

b

2

a

b

and compare this result with the middle term in the original expression.

2

a

b

=

2

⋅

(

10

x

)

⋅

3

2

a

b

=

2

⋅

(

10

x

)

⋅

3

Simplify.

2

a

b

=

60

x

2

a

b

=

60

x

Factor using the perfect square trinomial rule

a

2

+

2

a

b

+

b

2

=

(

a

+

b

)

2

a

2

+

2

a

b

+

b

2

=

(

a

+

b

)

2

, where

a

=

10

x

a

=

10

x

and

b

=

3

b

=

3

.

(

10

x

+

3

)

2

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kiruha [24]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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We know: The sum of the measures of the angeles in the triangle is equal 180°. Therefore we have the equation:

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We have

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ΔPSR is isosceles. Therefore ∠SPR and ∠PRS are congruent. Therefore

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Susbtitute:

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3 0
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Mandarinka [93]

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Step-by-step explanation:

28claps =12seconds

? = 0.5minutes

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? =0.5 minutes

(cross multiply)

60*0.5/1 = ?

?=30seconds

28claps = 12secs

? =30secs

28*30/12 =?

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