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AfilCa [17]
3 years ago
13

Megan's cousin wants to buy a new sound system for his car. She goes to the electronics store to help him to pick it out. The ba

se system costs $395. Adding a subwoofer is an additional $89. Two extra rear speakers are $75 each. And upgrading to a six-CD disk changer is an additional $225. Round each amount to the nearest hundred dollars to find a reasonable estimate for the total cost of the new sound system. A. $600 B. $650 C. $700 D. $900
Mathematics
1 answer:
Nikitich [7]3 years ago
5 0

Answer:D


Step-by-step explanation:


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What is the correct answer NEED ASAP PLEASE ​
Rudik [331]

Answer:

1 solution

Step-by-step explanation:

x^2 - 14x + 49 = 0

Factor the expression:

                 x     -     7

           ------------------------

  x       |    x^2   |    - 7x   |

  -        ------------------------

  7       |   - 7x    |    49     |

            ------------------------

(x - 7)^2 = 0

x - 7 = 0

x = 7

8 0
3 years ago
What logarithmic function represents the data in the table?
alina1380 [7]
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8 0
4 years ago
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Help quick plz i will make you a brainllest
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8 0
3 years ago
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Which of these problem types cannot be solved using the law of sines
timama [110]

Answer: The correct option are B, C and D.

Explanation:

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\frac{\sin A}{a} =\frac{\sin B}{b}=\frac{\sin C}{c}

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Since we need the combination of two sides and one angle or two angles and one side.

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Therefore, option A is incorrect.

In option B a side is known and two inclined angle on that line are known. But to use Law of sine we want the line and angle which in not inclined on that line, therefore the ASA problem can not be solved by Law of sine and the option B is correct.

In option C two sides and their inclined angle is known. But to use Law of sine we want the side and angle which in not inclined on that line, therefore the SAS problem can not be solved by Law of sine and the option C is correct.

In  option D three sides are given but any angle is not given, therefore the SSS problem can not be solved by Law of sine and the option D is correct.

4 0
3 years ago
Jack got the expression 7x + 1 and then wrote his answer as 1 + 7x. Is his answer an equivalent expression? How do u know? Expla
nadezda [96]
Yes, it is an equivalent expression because even though you move two pieces of an equation it will still equal the same thing, unless there are parentheses involved.
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4 years ago
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