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3 years ago

Solve each equation. Captionless Image a b c d

Mathematics

1 answer:

Finger [1]3 years ago

3 0

Answer:

d) n = -5 and n = -3

Step-by-step explanation:

n²+8n+15=0

Step 1: Factor left side of equation.

(n+3)(n+5)=0

Step 2: Set factors equal to 0.

n+3=0 or n+5=0

n=−3 or n=−5

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It has been said that newspapers are disappearing, replaced by various electronic media. In 2004, newspaper circulation (the num

shutvik [7]

Answer:

A. $y=-1.2x+59$

B. 42.2 million

Step-by-step explanation:

Part A:

Given:

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Therefore, linear relationship between newspapers circulated and time passed since 2004 is given as:

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Therefore, the equation describing the relationship is: $y=-1.2x+59$

Part B:

For the year 2018, $x=2018-2004=14$

Plug in 14 for $x$ in the above equation and solve for $y$ . This gives,

$y=-1.2(14)+59\\y=-16.8+59\\y=42.2$

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2 years ago

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3 years ago