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dexar [7]
3 years ago
15

Answers, please send help, now.

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
3 0
Which Question? All of them?
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How do you do this question?
vaieri [72.5K]

Answer:

(-∞, -2), (-2, -0.618), and (1.618, 3)

Step-by-step explanation:

The red plus (+) signs indicate the regions in which the function is concave up, and the red negative (-) signs indicate the regions in which the function is concave down.

Note that the sign of the concavity changes at an inflection point.

Let's examine the intervals given.

(-∞, -2): Yes, concave up.

(-∞, -1.17): No. Concave up in (-∞, -2) but concave down in (-2, -1.17).

(-2, 0): No. Concave down in (-2, -1.17) but increasing in (-1.17, 0.0).

(-1.17, 0.689): Yes. Concave up.

(-0.618, 1.618): No. Concave up in (-0.618, 0.689) but concave down in (0.689, 1.618).

(0, 3): No. Concave up in (0, 0.689), concave down in (0.689, 2.481), and concave up in (2.481, 3).

(2.481, ∞): Yes. Concave up.

The three intervals that are concave up are (-∞, -2), (-1.17, -0.689), and (2.481, ∞).

4 0
3 years ago
What is the value of the expression when b = 3? 4b to the 4 power
Mekhanik [1.2K]
<span> Just plug in the value of b=3 in 4b^4, then you solve it, and your answer is 324</span>
3 0
3 years ago
What is the step by step of<br> 1/ cos x csc^2 x = sin x/ cot x
Effectus [21]

Answer:

what is the step by step of 1/ cos x csc^2 x = sin x/ cot x

Step-by-step explanation:

1

.

csc

x

=

1

sin

x

2

.

cot

x

=

cos

x

sin

x

Given,

1

−

cos

x

sin

x

=

csc

x

−

cot

x

Simplify the right side.

csc

x

−

cot

x

=

1

sin

x

−

cos

x

sin

x

=

1

−

cos

x

sin

x

∴

, LS

=

RS.

7 0
2 years ago
What Is -6.75?
Charra [1.4K]
Rational is the correct answer
7 0
2 years ago
Christy bought an 8 foot piece of lumber to trim a bookshelf.Altogether she needs 100 inches of lumber for the trim. Did christy
soldi70 [24.7K]
Christy did not get enough because 12 times 8 = 96. she needs 4 for inches.
6 0
3 years ago
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