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hram777 [196]
3 years ago
10

What is the value of the discriminant? 2K2 = 10k - 2

Mathematics
1 answer:
Phoenix [80]3 years ago
7 0

Answer:

84

Step-by-step explanation:

Given a quadratic equation in standard form, ax² + bx + c = 0 : a ≠ 0

Then the discriminant is Δ = b² - 4ac

2k² = 10k - 2 ( subtract 10k - 2 from both sides )

2k² - 10k + 2 = 0 ← in standard form

with a = 2, b = - 10 and c = 2, thus

b² - 4ac = (- 10)² - (4 × 2 × 2) = 100 - 16 = 84

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Answer:

32

Step-by-step explanation:

The face closest to us has 4 by 4 unit cubes which is 16 cubes.

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3 years ago
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If point C is between points A and B, then AC + CB = ___.
mario62 [17]

The correct answer is: AB

Explanation:

There are two ways you can understand this:

1. By drawing:

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As you can see the point C is between A and point B, hence AC + CB = AB. One thing to remember here is that point C can be anywhere between the point A and B, in that case, the answer will remain be the same AB. For instance:

A --- C -------------B

Again, AC + CB = AB.

2. By inference:

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3 years ago
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D. (30 * 4) + (8 * 2)
RideAnS [48]
30•4=120, 8•2=16. 120+16=136
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3 years ago
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➥ The base of a parallelogram is thrice its height. If the area is 897 sq.cm. Find the base and height of the parallelogram.
IgorC [24]

Answer:

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Step-by-step explanation:

Let The height of a parallelogram = a cm

Then

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Gre4nikov [31]
Refer to the edited figure.

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Therefore
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Answer:   reduction; one-third.
The dilation is a reduction.
The scale factor of the dilation is one-third.

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