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djverab [1.8K]
3 years ago
7

Add the following polynomials: 3a3 + 8a - 6 and 4a2 - 9a + 11

Mathematics
2 answers:
alexdok [17]3 years ago
4 0

Answer:

3a^3+4a^2-1a+5

Step-by-step explanation:

Add the following polynomials:

3a^3 + 8a - 6 \ and\  4a^2 - 9a + 11

To add the polynomials we combine like terms

3a^3 + 8a - 6 + 4a^2 - 9a + 11

The terms with same variables are like terms

8a and -9a are like terms

8a - 9a = -1a

-6 +11= 5

3a^3 + 8a - 6 + 4a^2 - 9a + 11=3a^3+4a^2-1a+5

liubo4ka [24]3 years ago
3 0
<span> 3a^3+8a-6
+4a^2-9a+11
=3a^3+4a^2-a+5

</span>
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Which statement best explains the value of 16-(-3)
Alja [10]

Answer: 48

Step-by-step explanation:

It is the negative of 16 times the negative of 3.

Not sure if this is the answer but I hope it helps!

3 0
3 years ago
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Please answer this and show your work please I really need help !!!
klemol [59]
Unless you just want to give money to the ice cream truck, for 0 items, you will pay 0.

Since the price of each item is $0.77, for one item you will pay $0.77. (Is that a surprise?)

Then for two items, you will pay $0.77 for each one, or $0.77 + 0.77 = $1.54. You can also compute this by making use of the fact that multiplication is a shortcut for repeated addition. The price can be found by $0.77×2 = $1.54 = f(2).

Similarly, for 3 items, you can add $0.77 three times: $0.77 + 0.77 + 0.77 = f(3), or you can use multiplication: $0.77×3 = $2.31 = f(3).

a) Our table looks like
  (x, f(x))
  (0, 0)
  (1, 0.77)
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  (3, 2.31)

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8 0
2 years ago
Wayne is hanging a string of lights 58 feet long around the three sides of his patio, which is adjacent to his house. The length
podryga [215]

Answer:

The length of the patio is 32 ft and the width is 13 ft

Step-by-step explanation:

see the attached figure to better understand the problem

Let

L ----> the length of his patio

W ---> the width of his patio

we know that

L+2W=58 ----> equation A

L=2W+6 ----> equation B

substitute equation B in equation A and solve for W

2W+6+2W=58

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4W=58-6

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3 years ago
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slamgirl [31]
Please check the attached picture

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3 years ago
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Jane is having difficulty deciding whether to put her savings in the Mystic Bank or in the Four Rivers Bank. Mystic offers a 12%
Ad libitum [116K]
The answer to this question would be <span>B. Mystic
</span><span>

Since the rate should be constant, option C and D wouldn't be true.</span>
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Mystic : 107%^2= 1.145

5 0
3 years ago
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