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MrMuchimi
3 years ago
15

1) 9n2 - 25 Please show work

Mathematics
1 answer:
Vlad1618 [11]3 years ago
6 0

Answer:

(3n + 5)(3n − 5)

Explanation:

[ Factor ]

9n2 − 25

= (3n + 5)(3n − 5)

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The equation is y=(-1/2)x +2
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Bazinga charges $16.50 per hour to dogsit. Complete the table and answer the questions below.
kobusy [5.1K]

Answer:

A)  c = 16.5h

B)   $74.25

C)  7 hours

Step-by-step explanation:

Bazinga charges $16.50 per hour to dog sit.

Therefore, to calculate the total charge, multiply the number of hours by the charge per hour:

\large \begin{array}{| c | c |}\cline{1-2} \sf number\:of\:hours & \sf charge\:in\:dollars\\\cline{1-2} 1 & 16.50 \\\cline{1-2} 3 & 49.50 \\\cline{1-2} 6 & 99.00 \\\cline{1-2} 8 & 132.00 \\\cline{1-2}\end{array}

<h3><u>Part A</u></h3>

As explained above, to calculate the total charge, multiply the number of hours worked by the charge per hour of $16.50

⇒ c = 16.5h

where:

  • h = number of hours worked
  • c = total charge (in dollars)

<h3><u>Part B</u></h3>

To calculate how much Bazinga will earn if they dog sit for 4.5 hours, substitute h = 4.5 into the equation and solve for c:

⇒ c = 16.5h

⇒ c = 16.5(4.5)

⇒ c = $74.25

<h3><u>Part C</u></h3>

To calculate how long it will take Bazinga to earn $115.50, substitute c = 115.5 into the equation and solve for h:

⇒ c = 16.5h

⇒ 115.5 = 16.5h

⇒ h = 115.5 ÷ 16.5

⇒ h = 7 hours

8 0
2 years ago
Read 2 more answers
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Answer:

The answer is B: 1125

Step-by-step explanation:

I divided it for you and it is the only answer that did not have a decimal.

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Explanation:
F(x) = 5/x and g(x) = 3 + x/5

Then (f•g)(x) = 5/x • 3 + x/5

(f•g)(x) = 5/x • 15/5 + x/5

(f•g)(x) = 5/x • (15 + x)/5

(f•g)(x) = 5(15 + x)/5x

(f•g)(x) = (15 + x)/x
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What is a real world problem and equation for t = 5
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maybe this is it

Step-by-step explanation:

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