All categories

3 years ago

How do you know if a problem is extraneous or not?

Mathematics

1 answer:

Maurinko [17]3 years ago

5 0

Answer:

Step-by-step explanation:

An extraneous solution is a solution that's not really a solution. In other words, you work out the problem and you obtain a solution. Then you test your solution by plugging in your solution to the formula given, if the result is false then it's considered an extraneous solution.

For example, if you're solving for time it took for a football to reach the ground after somebody threw it, you would obtain two answers for time. These time answers are negative time and positive time, well the negative time makes no sense since it's before you threw the ball so we would consider that negative solution to be extraneous.

You might be interested in

Which equation represents a circle whose center is located at (- 6, 2) and whose radius is sqrt(10) units?

azamat

Answer:

${(x + 6)}^{2} + {(y - 2)}^{2}=10$

Step-by-step explanation:

The equation of a circle with center (a,b) and radius r, is

${(x - a)}^{2} + {(y - b)}^{2} = {r}^{2}$

From the question, the center of the circle is located at (-6,2) and the radius is

$r = \sqrt{10}$

We substitute the center and radius to get:

${(x - - 6)}^{2} + {(y - 2)}^{2} = {( \sqrt{10} })^{2}$

Simplify to obtain:

${(x + 6)}^{2} + {(y - 2)}^{2}=10$

7 0

3 years ago

Write an integer for a profit of 12

Leona [35]

The answer is +12 because you add on 12

3 0

3 years ago

Read 2 more answers

Elise's Diner offers its clients a choice of regular and diet soda. Last night, the diner served 28 sodas in all, 14 of which we

nadya68 [22]

Answer:

50%

Step-by-step explanation:

5 0

2 years ago

Which angle is congruent to BGC?

lawyer [7]

Answer:

BFC makes this angle add up to 90 degree at BFD

Therefore it becomes complementary to angle CFD

4 0

4 years ago

Read 2 more answers

A store sells three types of note cards. There are three sizes of each type. Show two ways to find the total number of notecards

bonufazy [111]

Answer: There are 9 different types of note cards that the store sells.

We can use the Fundamental Counting Principle to determine the total number of options.

There are two different events in this problem. First, there are 3 kinds of cards. Second, there are 3 sizes for each kind.

Simply, multiply the 3 by the other 3 and you have 9 different options.

Just think, each card would have a small, medium and larger option. So there are 3 groups of 3 or 9 total options.

8 0

3 years ago