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3 years ago

Which of the following statements are true of the discriminant?

2 answers:

8 0

The ones you can throw out are
B (second one down) E

By a very slim margin (like the thickness of a piece of paper), you could take out C. Technically, it is the value under the root sign which means you find b^2 and subtract 4ac from it. Your teacher may not agree. It is a very thin definition.

So what are we left with? Unfortunately A and D are both correct.
Answer AD and 1/2 of C <<<< answer.

olganol [36]3 years ago

7 0

Statements 1, 3, and 4 are true.

_____
Statements 3 and 4 say the same thing: "radicand" ≡ "value under the radical".

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Part A: Max rented a motorbike at $465 for 5 days. If he rents the same motorbike for a week, he has to pay a total rent of $625

AleksAgata [21]

Answer: Our required equation will be

y-80x=65

Step-by-step explanation:

Since we have given that

Number of days Max rented a motorbike at $465 = 5 days

Number of days Max rented a motorbike at $625 = 7 days

According to question, we'll use " Equation of line using two points "

$(y-y_0)=\frac{y_2-y_1}{x_2-x_1}(x-x_0)\\\\(y-465)=\frac{625-465}{7-5}(x-5)\\\\(y-465)=80(x-5)\\\\y-465=80x-400\\\\y-80x=-400+465\\\\y-80x=65$

Hence, our required equation will be

y-80x=65

6 0

3 years ago

(8x2 - 4x-8)(2x +3x+2)

MArishka [77]

Answer:

(8x2−4x−8)(2x+3x+2)

=(8x2+−4x+−8)(2x+3x+2)

=(8x2)(2x)+(8x2)(3x)+(8x2)(2)+(−4x)(2x)+(−4x)(3x)+(−4x)(2)+(−8)(2x)+(−8)(3x)+(−8)(2)

=16x3+24x3+16x2−8x2−12x2−8x−16x−24x−16

=40x3−4x2−48x−16

Step-by-step explanation:

8 0

3 years ago

Black bird starts his flight path from (2, 0). his flight path reaches a maximum height of 20 yards and lands at point (38, 0).

Salsk061 [2.6K]

The maximum height is 20 yards and the total horizontal distance is 36 yards, which is the distance between the point (2, 0) and (38, 0).

<h3>What is a parabola?</h3>

It is defined as the graph of a quadratic function that has something bowl-shaped.

We have:

The blackbird starts his flight path from (2, 0). His flight path reaches a maximum height of 20 yards and lands at point (38, 0).

Here the bird path will be a parabola with a maximum height of 20 yards.

The total horizontal distance traveled by the bird = The distance between the points (2, 0) and (38, 0)

= √(38-2)²

= 36 yards

Thus, the maximum height is 20 yards and the total horizontal distance is 36 yards, which is the distance between the point (2, 0) and (38, 0).

Learn more about the parabola here:

brainly.com/question/8708520

#SPJ1

8 0

2 years ago

Allie wants to arrange her flower garden in eight equal rows.

Shalnov [3]

So depending on the amount of Flowers in a row or feet in a row you would divide the total by eight.

7 0

3 years ago

The circular mirror below has a frame with a circumference of 28.26 inches.

Karo-lina-s [1.5K]

Answer: it is 3

Step-by-step explanation:

6 0

3 years ago