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3 years ago

Select the correct answer.

Mathematics

2 answers:

algol [13]3 years ago

7 0

Answer:

The equation is, x = x + 5,

And, the equation has no solution.

Step-by-step explanation:

Here, x represents Jenna's age in years,

Given,

Jessica is 5 years older than her sister Jenna,

⇒ The age of Jessica = ( x + 5 ) years,

Now, the age of jenna after 5 years = x + 5,

And, the age of Jessica in 5 year ago = (x+5) - 5 = x

According to the question,

x = x + 5

Which is the required equation that represents the situation

0 = 5 ( False )

Thus, the equation has no solution.

olganol [36]3 years ago

5 0

It would be 5+x, 5 being the age difference

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2 years ago

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3 years ago

David found and factored out the GCF of the polynomial 80b4 – 32b2c3 + 48b4c. His work is below. GFC of 80, 32, and 48: 16 GCF o

BlackZzzverrR [31]

Answer: The correct statements are

The GCF of the coefficients is correct.

The variable c is not common to all terms, so a power of c should not have been factored out.

David applied the distributive property.

Step-by-step explanation:

GCF = Greatest common factor

1) GCF of coefficients : (80,32,48)

80 = 2 × 2 × 2 × 2 × 5

32 = 2 × 2 × 2 × 2 × 2

48 = 2 × 2 × 2 × 2 × 3

GCF of coefficients : (80,32,48) is 16.

2) GCF of variables :( $b^4,b^2,b^4$ )

$b^4$ = b × b × b × b

$b^2$ = b × b

$b^4$ =b × b × b × b

GCF of variables :( $b^4,b^2,b^4$ ) is $b^2$

3) GCF of $c^3$ and c: c is not the GCF of the polynomial. The variable c is not common to all terms, so a power of c should not have been factored out.

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3 years ago

Read 3 more answers

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Dennis_Churaev [7]

Answer:

Step-by-step explanation:

both sides are multiplied by 2 which means its the original area*2*2 which means it's the original area*4

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2 years ago