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2 years ago

Draw the solution point, or points, for this system of equations. y=2x^2-12x+20 y=2

Mathematics

1 answer:

Alexandra [31]2 years ago

7 0

Answer:

Step-by-step explanation:

hello :

you have this system : y=2x²-12x+20

y=2

means : 2x²-12x+20 =2

2x²-12x+20-2 =0

2x²-12x-18 =0 a=2 and b= -12 and c= -18

delta = b²-4ac

delta = (-12)²-4(2)(-18)

delta = 0

X1 =X2 = -b/2a =12/4 =3

the solution point is : (3 ; 2)

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The graph represents y as a function of x . Which additional point can be plotted so that the graph continues to represent y as

tester [92]

Answer:

I think it's the last one D

Step-by-step explanation:

I'm not 100% sure, but I think the x can't repeat and 4 is the only number of x that hasn't been plotted yet. Tell me if it was right?

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3 years ago

The nth term of a sequence is 2n2 + 1 The nth term of a different sequence is 65 - 2n2. Show that there is only 1 number that is

HACTEHA [7]

Answer:

The only common term is 33.

Step-by-step explanation:

We are given the following in the question:

Sequence 1:

$n^{th}\text{ term: } 2n^2 + 1$

Sequence 2:

$n^{th}\text{ term: } 65 - 2n^2$

Equating the two terms, we get,

$2n^2 + 1 = 65 - 2n^2\\4n^2 = 64\\\\n^2 = \dfrac{64}{4}\\\\n^2 = 16\\n = \pm 4$

Since, n cannot take a negative value, we get n = 4.

Thus, there is only 1 common term both the series have for n = 4.

Common term:

$2(4)^2+ 1 - 65-2(4)^2 = 33$

Thus, the only common term is 33.

8 0

3 years ago

Which ordered pairs in the form

iVinArrow [24]

The answer is (4, 8)

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3 years ago

Read 2 more answers

If x =7/8 cm, y =1/4 cm, and z = 5/8 cm, what is the volume of the rectangular prism above?

lesantik [10]

I could help you if you label which one is the length which one it the width and which one is the height.

6 0

3 years ago

Can you guys please help me I would really appreciate it have a good day!

irga5000 [103]

Answer:

(D) Volcanic Gray

Step-by-step explanation:

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3 years ago