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3 years ago

Which expression is a polynomial

Mathematics

1 answer:

patriot [66]3 years ago

8 0

Answer:

$4x^3-2x^2+5x-6+\frac{1}{x}$ is a polynomial

Step-by-step explanation:

a polynomial is a set of numbers with multiple terms that are not simplify able

$9x^7y^{-3} z$ is not a polynomial because its actually one term, there is no addition/subtraction of different terms.

-13 is a single number, so not a polynomial

13x^-2 is also a single number, not a polynomial

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Find the sum of the even numbers shown below. 2+4+6+8+...+66+68+70

Mandarinka [93]

The sum its +2

2+2=4

4+2=6

6+2=8

8+2=10

And so on the numbers just keep sum for 2

5 0

3 years ago

Solve for x.

denis-greek [22]

Answer:

$\frac{3\±\sqrt{3}}{3}$

Step-by-step explanation:

Whe have the function $3x^2-6x+2=0$

To solve this equation we must factor.

To factor, we need to find the points where the function is equal to zero. So we use the quadratic formula

$\frac{-b\±\sqrt{b^2-4ac}}{2a}$

Where:

a = 3

b = -6

c = 2

Then

$\frac{-(-6) + \sqrt{(-6)^2-4(3)(2)}}{2(3)} = \frac{3+\sqrt{3}}{3}\\\\and\\\\\frac{-(-6) - \sqrt{(-6)^2-4(3)(2)}}{2(3)}= \frac{3-\sqrt{3}}{3}$

finally the correct answer is $\frac{3\±\sqrt{3}}{3}$

5 0

3 years ago

Read 2 more answers

Simplify 5^3/5^7 leaving your anwser in index form

Wewaii [24]

Steps:

Simplify:

5³/5⁷

= 5³/5⁷

= 5*5*5/ 5*5*5*5*5*5*5

=1/5⁴

=1/625 (Decimal: 0.0016)

Steps by Step:

5³/5⁷

=125/5⁷

=125/78125

=1/625

Answer: =1/625 (Decimal: 0.0016)

Please mark brainliest

Hope this helps.

6 0

3 years ago

Solve for T Please Need Help

lara [203]

Answer:

$T = \frac{6b+4}{R}$

Step-by-step explanation:

$B=\frac{RT-4}{6}$

$6B=RT-4$ (times 6 on both sides)

$6B+4=RT$ (add 4 to both sides)

$\frac{6B+4}{R} = T$ (divide R on both sides)

thus

$T = \frac{6b+4}{R}$

7 0

3 years ago

Simplify −2(2h+10)+4h

Anuta_ua [19.1K]

First distribute: -4h - 20 + 4h
Combine like terms: -20
The answer is -20

7 0

3 years ago

Read 2 more answers