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Elis [28]
3 years ago
10

I need help with the second question please. Thank you.

Mathematics
2 answers:
evablogger [386]3 years ago
8 0

Answer:

x = 6

Step-by-step explanation:

Using the laws of logarithms

• logx^{n} ⇔ n log x

• log x = log y ⇔ x = y

given

3 ln x = ln 216

ln x^{3} = ln 216

x³ = 216 ( take the cube root of both sides )

x = 6

nevsk [136]3 years ago
4 0

Answer:

<h2>x = 6</h2>

Step-by-step explanation:

\text{Use}\\\\\ln x^n=n\ln x\\--------------\\\\3\ln x=\ln216\\\\\ln x^3=\ln216\to x^3=216\to x=\sqrt[3]{216}\\\\x=6\ \text{because}\ 6^3=216

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3rd time posting PLEASE HELP EZ MATH
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Answer:

Lol

Step-by-step explanation:

What you want help with?

4 0
3 years ago
A box in the shape of a cube has a volume of 64 cube inches. What is the length of a side of the box
Naily [24]

The volume of a cube can be expressed as

Let V = volume

Let a = side length

V = a^3

We need to solve the formula to isolate the variable a. First, we must cube root each side.

∛(V) = a. With our new formula, we plug in 64 cube inches into V.

∛(64) = a.

4 = a.

The length of one side on our cube is 4 inches.

8 0
3 years ago
The sum of 3 times a number and 5 is 2 times the number plus 15. what is half the number?
saul85 [17]
Define x:
Let the sum be x 

Construct the equation:
<span>The sum of 3 times a number and 5 is 2 times the number plus 15.
</span>→ 3x + 5 = 2x + 15

Solve x:
3x + 5 = 2x + 15         | Equation
x + 5 = 15                   | Take away 2x from both sides
x = 10                         | Take away 5 from both sides

Answer: The number is 10.
5 0
3 years ago
What does it mean to be a factor of a polynomial
Leokris [45]
A factor of polynomial P(x) is any polynomial which divides evenly into P(x). For example, x + 2 is a factor of the polynomial x2 – 4. The factorization of a polynomial is its representation as a product its factors. For example, the factorization of x2 – 4 is (x – 2)(x + 2).
3 0
4 years ago
Read 2 more answers
Hi! I've tried this problem a couple times but am still stumped :( Can you help?!
aniked [119]

ANSWER:

X\text{ = }\begin{bmatrix}{12} & {-4} & {-2} \\ {-8} & {-13} & {8} \\ {8} & {15} & {18}\end{bmatrix}

EXPLANATION:

Given:

U\text{ = }\begin{bmatrix}{1} & {3} & {-5} \\ {2} & {14} & {11} \\ {-8} & {0} & {5}\end{bmatrix}\text{           V =}\begin{bmatrix}{13} & {1} & {-7} \\ {-6} & {1} & {9} \\ {0} & {15} & {23}\end{bmatrix}

Since U and V are Matrices with equal dimensions(3 x 3 matrix), and

X + U = V.

To solve for X, we have:

X = V - U

\begin{gathered} X\text{ = V - U} \\ X\text{ = }\begin{bmatrix}{13-1} & {-1-3} & {-7-(-5)} \\ {-6-2} & {1-14} & {19-11} \\ {0-(-8)} & {15-0} & {23-5}\end{bmatrix}=\text{ }\begin{bmatrix}{12} & {-4} & {-2} \\ {-8} & {-13} & {8} \\ {8} & {15} & {18}\end{bmatrix} \end{gathered}X\text{ = }\begin{bmatrix}{12} & {-4} & {-2} \\ {-8} & {-13} & {8} \\ {8} & {15} & {18}\end{bmatrix}

6 0
1 year ago
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