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2 years ago

Find the sum of these polynomials. (x2 – x + 7) + (9x2 + 6) =

Mathematics

2 answers:

kumpel [21]2 years ago

8 0

Hi there! The answer is B.

$( x^{2} -x+7)+(9 x^{2} +6)$
First work out the parenthesis.

$x^{2} -x+7+9 x^{2} +6$
Rearrange the expression.

$x^{2} +9 x^{2} -x+7+6$
Now collect the terms.

$10 x^{2} - x+13$
The answer is B.

~ Hope this helps you!

Fiesta28 [93]2 years ago

7 0

The answer is b hope this helps :))

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2 years ago

Hello, how was your day, help? ^ ^<br> solve for x

Natali5045456 [20]

Hi there!

»»————-　★　————-««

I believe your answer is:

$\boxed{x=100}$

»»————-　★　————-««

Here’s why:

Recall the Triangle Angle Sum Theorem: The three angles of all triangles add up to a sum of 180°.
We will set up an equation based on this and then solve.

⸻⸻⸻⸻

$\boxed{\text{Solve for 'x':}}\\\\58 + 22 + x = 180\\-----------\\\rightarrow 80 + x = 180\\\\\rightarrow 80 - 80 + x = 180 - 80\\\\\rightarrow \boxed{x=100}$

⸻⸻⸻⸻

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

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2 years ago

Maria throws an apple vertically upward from a height of 1.3m unit an initial velocity of velocity of 12.4m/s . Will the apple r

PSYCHO15rus [73]

Answer:

Step-by-step explanation:

v^2-u^2=2gh

0^2-12.4^2=2*(-9.8)h

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