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sergiy2304 [10]
3 years ago
13

Help I'm really confused. i need this ASAP!!!!! -9a^2b^6(-7ab^-4)

Mathematics
1 answer:
Eva8 [605]3 years ago
6 0
The top of “^” needs a number to solve it.
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Find the domain of -1/x^2-4
Ipatiy [6.2K]

Answer:

\mathbb{R}-\{0\}

(-\infty,0)\ U\ (0,+\infty)

Step-by-step explanation:

<u>The domain of a Function</u>

Given a real function f(x), the domain of f is made of all the values x can take, such that f exists. The function given in the question is

\displaystyle f(x)=-\frac{1}{x^2}-4

Finding the domain of a function is not possible by giving x every possible value and check if f exists in all of them. It's better to find the values where f does NOT exist and exclude those values from the real numbers.

Since f is a rational function, we know the denominator cannot be 0 because the division by 0 is not defined, so we use the denominator to find the values of x to exclude from the domain.

We set

x^2=0

Or equivalently

x=0

The domain of f can be written as

\mathbb{R}-\{0\}

Or also

(-\infty,0)\ U\ (0,+\infty)

4 0
4 years ago
What is the length of a diagonal of a square with a side length of 6?
Studentka2010 [4]

Answer:

D) 6sqrt(2)

Step-by-step explanation:

D² = 6² + 6²

D = 6sqrt(2)

8 0
3 years ago
A. {[(-15+5)×2+8]-32÷8}-(-7)
Nezavi [6.7K]

Answer:

Step-by-step explanation:

The answers are:

A)  {[(-15+5)×2+8]-32÷8}-(-7)

Calculate within parentheses: -16 - (-7)

Add and subtract (left to right): -16 - (-7) = -9

B) (5-2)³×2+[-4+(-7)]÷(-2+4)²

To solve this problem, you need to follow the steps of order of operations.

Calculate within parentheses: 3^{3} * 2 + [-4 + (-7)] ÷ (-2+4)²

Calculate within parentheses: 3^{3} *2 -11 ÷ (-2+4)²

Calculate within parentheses: 27 × 2 - 11 ÷ (-2+4)²

Calculate exponents: 27 × 2 -11 ÷ 4

Multiply and divide: 54 - 11 ÷ 4

Multiply and divide: 54 - \frac{11}{4}

Add and Subtract:  \frac{205}{4}

Convert improper fractions to mixed numbers: \frac{205}{4} = 51\frac{1}{4}

C) {-10-[12+(-3)²] + 3³}+3³}÷(-3)

Calculate within parentheses: -4 ÷ (-3)

Multiply and divide:  \frac{-4}{(-3)}

Simplify and convert improper fraction to a mixed number:

\frac{-4}{(-3)} = \frac{4}{3} = 1\frac{1}{3}

Hope this helped! If so, please mark brainliest.

7 0
3 years ago
What is 528,492 rounded to the nearest thousand?
Yanka [14]

Answer: 528,000

Step-by-step explanation: 492 is less then 500 so...

7 0
3 years ago
Solve for x in the diagram below
bixtya [17]

Answer:

80 degrees

Step-by-step explanation:

Since we know that a straight line is 180 degrees and 100 degrees and x lie on the same line:

100 + x = 180
x = 80
Hope this helps :)

8 0
2 years ago
Read 2 more answers
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