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quester [9]
3 years ago
12

(7x^6+2x^5-3x^2+9x)+(5x^5+8^3-6x^2+2x-5)

Mathematics
1 answer:
Reil [10]3 years ago
7 0

Answer:

Step-by-step explanation:

Combine like terms

7x^6

2x^5+5x^5= 7x^5

8x^3

-3x^2-6x^2= -9x^2

9x+2x= 11x

-5

Put back into order

7x^6+7x^5+8x^3-9x^2+11x-5

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Please help me ASAP <br> NO LINKS or files
Bess [88]

Answer:

1 (-9, -4)

2 (-6, 2)

Step-by-step explanation:

1- when you reflect along the x axis keep the x the same and change the y.

2- when you reflect along the y axis keep the y the same and change the x.

4 0
3 years ago
how long will it take for an investment of 2000 to double given an annual interest rate of 6% compounded monthly
Agata [3.3K]
It will take about 16.66 months for the investment to double.
Hope this helps.
5 0
4 years ago
a cone has a volume of 6 cubic inches. what is the volume of a cylinder that the cone fits exactly inside of
ella [17]

Answer:

= 18 cubic inches

Step-by-step explanation:

The volume of a cone is given by the formula;

V = 1/3 × base area × height

While that of cylinder is given by the formula;

Volume = Base area × height

Since we need the cylinder to fit exactly inside the cone, then it  means that their bases are the same and heights are the same.

Therefore;

The cone has three times less volume compared to the cylinder.

Thus;

Volume of the cylinder = Volume of cone × 3

                                       = 6 In³ × 3

                                       <u>= 18 cubic inches</u>

5 0
3 years ago
Step by step explanation please
galina1969 [7]

Two equal triangles

2(1/2×b×h)

=2(1/2×8×10)

= 80 {cm}^{2}

Three rectangles

=3(l×h)

=3(18×8)

=3(144)

432 {cm}^{2}

Total Surface area

80 {cm}^{2}   +  432 {cm}^{2} \\ 512 {cm}^{2}

8 0
3 years ago
What is the solution set of the inequality x5 + x4 - 6x3 + x2 + x - 6 ≥ 0?
Ainat [17]
The answer is C

because:
6 0
4 years ago
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