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2 years ago

Find the discriminant and describe the nature of the root(s) of the equation: 6x2 - 2x - 4 = 0)

Mathematics

1 answer:

Svetradugi [14.3K]2 years ago

8 0

Answer:

discriminant= 100, nature of the root= real numbers.

Step-by-step explanation:

discriminant formula: b^2-4ac

-2^2-4(6)(-4)

4+96=100.

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someone came into my shop and stole $100.00 from the register without my knowledge. The person came back in with the same $100.0

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3 years ago

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Please help i’m not understanding

ratelena [41]

Answer:

D is not a supported statement

Step-by-step explanation:

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3 years ago

What is the value of x

zheka24 [161]

Answer:

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3 years ago

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A group of 50 New York psychology students got a mean score of 530 on the psychology GRE with a standard deviation of 80. These

lesantik [10]

Answer: No, New York students are not truly more nerdy than the California students.

Step-by-step explanation:

Since we have given that

Number of students in a group = 50

Mean score of New York psychology = 530

Mean score of California psychology = 515

Standard deviation = 80

So, we will find t-distribution first.

$t=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\t=\dfrac{530-515}{\dfrac{80}{\sqrt{50}}}\\\\t=1.32$

Let α = 5% = 0.05

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Since t < t(critical value)

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4 years ago

What is the area of the trapezoid?

DanielleElmas [232]

Answer:

C) 100 m^2

Step-by-step explanation:

Area of a trapezoid= h*[(b1+b2)/2]

h=10

b1=8

b2=12

Therefore:

A=10*[(8+12)/2]

A=10*(20/2)

A=10*10

A=100

So the area of the trapezoid is 100 m^2

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3 years ago