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3 years ago

4n+6+n-2 please help me

Mathematics

1 answer:

Roman55 [17]3 years ago

7 0

Answer:

Rearrange the number to make 4n+n+6-2, then add them all up into 5n+4, since n is equal to 1n, you can make 5n by add 4n and n. So the answer is 5n+4

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Please help domain and range

Naddik [55]

Answer: #13: Domain = (-∞,∞) Range = (-∞,0]

#14: Domain = (-∞,∞), Range = (-∞,∞)

Step-by-step explanation: The domain is all possible x values for a graph and the range is all possible y values.

7 0

3 years ago

Michael paid $10.11 for a pair of jeans. This amount included a tax of 2%. What was the cost before tax?

djverab [1.8K]

Answer: $9.91

Step-by-step explanation: The correct answer is $9.91 for the jeans. This is calculated by divided the total paid ($10.11) by 1.02, which represents the cost of the jeans + the 2% interest. 10.11 / 1.02 = $9.91.

You can then double check you work by calculating the 2% interest rate of the jeans. $9.91 x 2% = $ .20. The total is $9.91 for the jeans plus $ .20 for the tax, for a total of $10.11, which is the amount in the original problem.

4 0

3 years ago

Sara threw 6 darts at this dartboard, and they all hit the target. Which of the following numbers could have been her score: 4,2

Vanyuwa [196]

Answer:

everything but 4 and 31!

Step-by-step explanation:

24: 9+9+1+1+1+3

29: 9+5+5+1+1+3

56: 9×6

4 0

3 years ago

The graph of which function has a minimum located at (4, –3)?

valentinak56 [21]

Answer:

None of the options is the answer to the question

Step-by-step explanation:

we know that

The equation of a vertical parabola into vertex form is equal to

$f(x)=a(x-h)^{2}+k$

where

(h,k) is the vertex of the parabola

case A) we have

$f(x)=x^{2}+4x-11$

In this case the x-coordinate of the vertex will be negative

therefore

case A is not the solution

case B) we have

$f(x)=-2x^{2}+16x-35$

This case is a vertical parabola open downward (the vertex is a maximum)

The vertex is the point $(4,-3)$ <u>but is not a minimum</u>

see the attached figure

therefore

case B is not the solution

case C) we have

$f(x)=x^{2}-4x+5$

Convert into vertex form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$f(x)-5=x^{2}-4x$

Complete the square. Remember to balance the equation by adding the same constants to each side

$f(x)-5+4=(x^{2}-4x+4)$

$f(x)-1=(x^{2}-4x+4)$

Rewrite as perfect squares

$f(x)-1=(x-2)^{2}$

$f(x)=(x-2)^{2}+1$ --------> vertex form

The vertex is the point $(2,1)$

therefore

case C is not the solution

case D) we have

$f(x)=2x^{2}-16x+35$

Convert into vertex form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$f(x)-35=2x^{2}-16x$

Factor the leading coefficient

$f(x)-35=2(x^{2}-8x)$

Complete the square. Remember to balance the equation by adding the same constants to each side

$f(x)-35+32=2(x^{2}-8x+16)$

$f(x)-3=2(x^{2}-8x+16)$

Rewrite as perfect squares

$f(x)-3=2(x-4)^{2}$

$f(x)=2(x-4)^{2}+3$ --------> vertex form

The vertex is the point $(4,3)$

therefore

case D is not the solution

The answer to the question will be the function

$f(x)=2x^{2}-16x+29$

7 0

4 years ago

Read 2 more answers

Graph the circle x2 + y2 – 14x – 12y + 76 = 0.

nikklg [1K]

Answer:

The answer is, the center is (7,6) and the radius 3 soo, you would count three from the center to the arc( outer line and then if its three than ur good. proven in khan academy don't worry

Step-by-step explanation:

XD finally no more schoooooolllllllll baaaabbyyyyyy

7 0

4 years ago