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irina [24]
3 years ago
7

How do you do this question?

Mathematics
1 answer:
vaieri [72.5K]3 years ago
4 0

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, ∞).

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Solve the equation for y: 2 y – 25 = 19
stealth61 [152]

Answer:

2y - 25 = 19

2y = 19 + 25

2y = 44

y = 44 / 2

y = 22

Hope it helps

4 0
3 years ago
What is the solution to the equation 9 cubed x ≈ 7?
yulyashka [42]

<u>Answer</u>

7/729


<u>Explanation</u>

The question requires to you to find the value of x.

9³x = 7

729 x = 7

x = 7/729

4 0
3 years ago
Is 0.48 greater than 11/25
Zina [86]
0.48=48/100=12/25~~~12/25>11/25 True✔ ~~~~Have a nice day!!! ★★
8 0
3 years ago
Giving Brainliest!
zavuch27 [327]
It is the first option- 12 times one fourth the quotient of 6 and 2
4 0
2 years ago
Instructions: Find the missing side of the triangle.<br> 48<br> 50
Lynna [10]

Answer:

x = 14

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2  where a and b are the legs and c is the hypotenuse

48 ^2 + x^2 = 50^2

2304+x^2=2500

x^2 = 2500-2304

x^2 =196

Taking the square root of each side

sqrt(x^2) = sqrt(196)

x = 14

4 0
3 years ago
Read 2 more answers
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