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geniusboy [140]
3 years ago
15

If P(x) = 8 + 7x – 10x² represents the profit in selling a thousand Boombotix speakers, how

Mathematics
1 answer:
Helga [31]3 years ago
7 0

Answer:

350

Step-by-step explanation:

P(x) = 8 + 7x – 10x² = -10x² + 7x +8

The coefficient of x² is -10, the parabola has a maximum

x(max) = - (7 / 2 x (-10)) = 7 / 20

speakers should sold: 1000 x 7/20 = 350

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mariarad [96]

Answer:

JK=2.25\ units

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional, and this ratio is called the scale factor

so

\frac{JK}{ST}=\frac{KL}{TU}

substitute the given value and solve for JK

\frac{JK}{1.5}=\frac{6}{4}

JK=(1.5)\frac{6}{4}

JK=2.25\ units

8 0
3 years ago
What is the dollar value of 7 nickels and 8 quarters
victus00 [196]

Answer:

$2.35

Step-by-step explanation:

Nickels are worth 5 cents each and quarters are worth 25 cents.

7 nickels = 7 * 5 cents = 35 cents

8 quarters = 8 * 25 cents = 200 cents

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There are 100 cents per dollar, so we can find the dollar value by:

235/100 = $2.35

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3 years ago
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Step-by-step explanation:

5 0
3 years ago
A hockey season ticket holder pays $99.00 for her tickets plus $3.00 for a program for each game. A second person pays $14.00 fo
ddd [48]

The two person will pay the same amount of money when they both watch 9 hockey games.

<h3>How to find the equation and use it to find cost?</h3>

A hockey season ticket holder pays $99.00 for her tickets plus $3.00 for a program for each game. Therefore,

y = 99 + 3x

where

y = total cost

x = number of game

A second person pays $14.00 for a ticket to every game but doesn't buy programs. Therefore,

y = 14x

The number of games they will have the same amount is as follows:

99 + 3x = 14x

99  = 14x - 3x

99 = 11x

x = 99 / 11

x = 9

Therefore, they will have the same amount when they watch 9 games.

learn more on equation here: brainly.com/question/14058936

4 0
2 years ago
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Arisa [49]

Unlike terms displays terms which are not the same. x+2y would be the answer.

7 0
2 years ago
Read 2 more answers
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