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3 years ago

Find the sum and express it in simplest form. (-3n^3 - 3n^2 - 5) + (8n^3 + 6n^2 - 4)

Mathematics

2 answers:

djverab [1.8K]3 years ago

5 0

Answer:

5n^3+3n^2-9

Step-by-step explanation:

you only add the coefficients

o-na [289]3 years ago

3 0

Answer:

Yfy

Step-by-step explanation:

Rhenish

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For the following pair of lines, identify the system by type.

miskamm [114]

Notice how ur lines are parallel...they will never cross....so their is no solution. Meaning ur lines are inconsistent

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3 years ago

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Round 8.631 to the nearest hundredth

Anestetic [448]

Answer:

8.63

Step-by-step explanation:

When rounding if the number is less than five, you round down. If the number is greater than five, you round up.

So in this case, since we are working with rounding the hundredth place in the decimal 8.631 you would round down. So your answer would be 8.630 or simply 8.63

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4 years ago

True or False? Complementary Angle’s are two angles that add up to 90 degrees

bezimeni [28]

Answer:

True

Step-by-step explanation:

Definition of Complementary Angle’s

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4 years ago

Fraction 3 over 4x = Fraction 1 over 5. x = ___?

umka21 [38]

Answer:

$\large\boxed{x=3\dfrac{3}{4}}$

Step-by-step explanation:

$\dfrac{3}{4x}=\dfrac{1}{5}\qquad\text{cross multiply}\\\\(4x)(1)=(3)(5)\\\\4x=15\qquad\text{divide both sides by 4}\\\\x=\dfrac{15}{4}\\\\x=3\dfrac{3}{4}$

7 0

3 years ago

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Describe the graph of 2x + y = 11 and 2x + y = 2. Determine the number of solutions.

Alexandra [31]

Answer:

$\mathrm{No\:Solution}$

Step-by-step explanation:

By using comparing the left hand side of the two given equations we have:

$\begin{bmatrix}2x+y=11\\ 2x+y=2\end{bmatrix}\\\\\begin{bmatrix}11=2\end{bmatrix}\\\\11=2\:\mathrm{\:is\:false,\:therefore\:the\:system\:of\:equations\:has\:no\:solution}$

Best Regards!

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3 years ago