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Vlad [161]
3 years ago
11

If x6 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the

Mathematics
1 answer:
lys-0071 [83]3 years ago
5 0

Answer:

The discriminant is equal to zero

Step-by-step explanation:

If x=6 is the only x-intercept of the graph of a quadratic equation, the it means the quadratic equation has a repeated root.

When a quadratic equation has a repeated root, it means its discriminant is zero.

This means that

{b}^{2}  - 4ac = 0

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Hhhhhhh i need helpp
maxonik [38]

Answer:

x<27

Step-by-step explanation:

2(x+x+4)<116

2(2x+4)<116

2x+4<58

2x<54

x<27

8 0
3 years ago
Anybody know the right answer?
Dmitry_Shevchenko [17]

If we just have

y = \cos x

that's an amplitude of 1 and a period of 2\pi

Let's modify this step by step.

Amplitude of 4. Four times the amplitude means a factor of 4 on the outside.

y = 4 \cos x

Period of π. Double the period means a factor of 2 on the inside.

y = 4 \cos(2x)

Horizontal shift of π/2 to the left. To the left means adding a positive number to x. The question appear ambiguous. It's not clear to me if we add to x or 2x; let's make it

y = 4 \cos(2(x + \frac \pi 2))

Vertical shift of 3:

y = 3 + 4 \cos(2(x + \frac \pi 2))

y = 3 + 4 \cos(2x +  \pi)

Depending on the interpretation of the phase shift, that pi may be a pi/2.

Answer: 3 + 4 \cos(2x +  \pi)

4 0
3 years ago
Can u plzz find me a length of adjacent​
timofeeve [1]

Answer:

There is no answer

My Logic:

The picture does not specify the degree of angle for each corner, nor can i understand what the random "a" is. also the side all the way to the left has an un-readable number.

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Kirans aunt is 15 years older than kiran. how old will kirans aunt be when kiran is 13?
Leya [2.2K]

Answer:

28 will be your answer!

Step-by-step explanation:

I don't properly know how to explain thia but i know its the answer

8 0
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