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lilavasa [31]
3 years ago
11

Determine if the sequence is arithmetic 4,9,14,19

Mathematics
1 answer:
DIA [1.3K]3 years ago
4 0

Answer:

Yes, the sequence is arithmetic

Step-by-step explanation:

4 + 5 = 9

9 + 5 = 14

14 + 5 = 19

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5. x2 +5x-4<br> Discriminate
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Answer:

<em>D = 41</em>

Step-by-step explanation:

y = ax² + bx + c

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~~~~~~~~~~~~

x² + 5x - 4

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6 0
3 years ago
The altitude drawn to the hypotenuse of a right triangle divides the hypotenuse into segments such that their lengths are in rat
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In geometry, it would be always helpful to draw a diagram to illustrate the given problem.

This will also help to identify solutions, or discover missing information.

A figure is drawn for right triangle ABC, right-angled at B.

The altitude is drawn from the right-angled vertex B to the hypotenuse AC, dividing AC into two segments of length x and 4x.


We will be using the first two of the three metric relations of right triangles.

(1) BC^2=CD*CA (similarly, AB^2=AD*AC)

(2) BD^2=CD*DA

(3) CB*BA = BD*AC


Part (A)

From relation (2), we know that

BD^2=CD*DA

substitute values

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so CD=4, DA=4*4=16 (and AC=16+4=20)


Part (B)

Using relation (1)

AB^2=AD*AC

again, substitute values

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=>

AB

=sqrt(8^2*5)

=8sqrt(5)

=17.89 (approximately)

6 0
4 years ago
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