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Anit [1.1K]
2 years ago
13

Nadia swims at a rate of 50 meters per minute. Create a function f, where f(n) gives the number of meters Nadia swims given the

number of minutes she swims, n. Write the appropriate variable and symbol to correctly complete the equation for the function.
f(n) = 50 ________ ________
Mathematics
1 answer:
ivann1987 [24]2 years ago
6 0

Answer: i dont know sorry

Step-by-step explanation:

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Which of the following is not a possible number of solutions when solving a system of equations containing a quadratic and a lin
Kobotan [32]

Answer:

3

Step-by-step explanation:

We have a system with two equations, one equation is a quadratic function and the other equation is a linear function.

To solve this system we have to clear "y" in both equations, and then equal both equations, then we will have a quadratic function and equal it to zero:

ax^2+bx+c=0, a\neq 0

Then to resolve a quadratic equation we apply Bhaskara's formula:

x_{1}=\frac{-b+\sqrt{b^2-4ac} }{2a}

x_{2}=\frac{-b-\sqrt{b^2-4ac} }{2a}

It usually has two solutions.

But it could happen that \sqrt{b^2-4ac} then the equation doesn't have real solutions.

Or it could happen that there's only one solution, this happen when the linear equation touches the quadratic equation in one point.

And it's not possible to have more than 2 solutions. Then the answer ir 3.

For example:

In the three graphs the pink one is a quadratic function and the green one is a linear function.

In the first graph we can see that the linear function intersects the quadratic function in two points, then there are two solutions.

In the second graph we can see that the linear function intersects the quadratic function in only one point, then there is one solutions.

In the third graph we can see that the linear function doesn't intersect the quadratic function, then there aren't real solutions.

7 0
3 years ago
A cone-shaped tent has a diameter of 12 ft and a height of 6 ft.
HACTEHA [7]
Volume should be 226.08 
volume of a cone= 1/3 pi radius squared multiplied by height 
6x6=36 multiply by height 36x6=216  divide by 3=72 now multiply by pi =226.08 
your answer is 226.08
7 0
3 years ago
Read 2 more answers
Given m||n, find the value of x
fenix001 [56]
X is equal to 2. you can set them equal to each other because they are corresponding angles, which means they are congruent.
4 0
3 years ago
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scott started his banking account with $150 and is spending $7 per day on lunch. this situation models which type of function ​
Zina [86]

Answer:

linear function:  y = -7x + 150

Step-by-step explanation:

Scott's situation represents a linear function because he is spending $7 each day on lunch.  His initial amount in his bank account is $150 and each day he spends the same rate on lunch, $7.  So, for any amount of days - represented by 'x' in the equation, you would multiply by -7 (since he is spending) and subtract this amount from his original amount of $150.  In this equation, 'y' is equal to his total after 'x' amount of days.  

7 0
3 years ago
A gumball machine has 78 gumballs. each person who puts a coin into the machine gets 3 gumballs. after a certain number of peopl
Lesechka [4]
D is the bast answer for this question, but, the equation should be (78-54)/3=p.
8 0
3 years ago
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