We are given our function as
For finding concavity , firstly we will find second derivative
now, we can find derivative again
now, we can know second derivative is undefined when denominator =0
so, we set denominator =0
and then we can solve for x
now, we can draw a number line and locate x=-4
and then we can find sign of second derivative on each intervals
so,
Concave downward interval:
Round to the nearest significant number
275,000,000 = 2.75^8
2.75^8 is your answer
hope this helps
Answer:
The equation is
Let n represent the number
4n + (-2) = 5n + 8
4n - 2 = 5n + 8
Solve for n
Group like terms
4n - 5n = 8 + 2
-1n = 10
n = 10/-1
n = -10
The number is -10
Answer:
c = 7.6
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality<u>
</u>
<u>Trigonometry</u>
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²
- a is a leg
- b is another leg
- c is the hypotenuse<u>
</u>
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify variables</em>
<em>a</em> = 7
<em>b</em> = 3
<u>Step 2: Solve for </u><em><u>c</u></em>
- Substitute in variables [Pythagorean Theorem]: 7² + 3² = c²
- Evaluate exponents: 49 + 9 = c²
- Add: 58 = c²
- [Equality Property] Square root both sides: √58 = c
- Rewrite: c = √58
- Evaluate: c = 7.61577
- Round: c = 7.6
Answer:
9
Step-by-step explanation:
2nd theorem of Euclid. 12^2=16*x
x=144/16=9