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Kruka [31]
3 years ago
8

Select all the expressions that are equivalent to 5x^2+8x+2. ??

Mathematics
1 answer:
prohojiy [21]3 years ago
7 0

Step-by-step explanation:

if there are no typos then only 1) is correct.

3x² + 2x² = 5x²

x + 7x = 8x

2 = 2

2)

8x² - 3x² = 5x²

4x - 3x = x

4 = 4

wrong

3)

x² + 5x² = 6x²

12x - 4x = 8x

2 = 2

wrong

4)

is the same as 3)

so, I am sure the original problem description has something else here. be careful - the original might be another correct answer here.

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Simply the monomials below<br><br>(-8x⁴ y³)•(2x⁵ y²)+7x⁹ y⁵​
vlada-n [284]

Answer:

-9x^9y^5

Step-by-step explanation:

Do the multiply first:

-16x^9y^5+7x^9y^5

=x^9y^5(-16+7)

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6 0
3 years ago
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A spinner is divided into 8 equal sections where 3 are black, 4 are yellow, and I is red. If it is spun randomly, what is the pr
hichkok12 [17]

Given:

A spinner is divided into 8 equal sections  where 3 are black, 4 are yellow, and 1 is red.

To find:

The probability of it landing either on a yellow or a red section.

Solution:

We have,

Total number of sections = 8

Black sections = 3

Yellow sections = 4

Red sections = 1

Now,

Either yellow or red sections = 4 + 1

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Now, the probability of it landing either on a yellow or a red section is:

\text{Required probability}=\dfrac{\text{Either yellow or red sections}}{\text{Total number of sections}}

\text{Required probability}=\dfrac{5}{8}

Therefore, the required probability is \dfrac{5}{8}.

4 0
3 years ago
I'm stuck in this question and need some help for this. Thank you
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