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vazorg [7]
3 years ago
13

A^4 + 3a² - ( 5a - 3)(-7a) Please show work!!

Mathematics
1 answer:
cupoosta [38]3 years ago
7 0

a^4+3a^2-(5a-3)(-7a)\ \ \ \ |\text{use distributive property}\\\\=a^4+3a^2-[(5a)(-7a)+(-3)(-7a)]\\\\=a^4+3a^2-(-35a^2+21a)\\\\=a^4+3a^2+35a^2-21a\\\\=a^4+38a^2-21a

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Rewrite using a single positive exponent.<br> 78<br> 73
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Hey! I don’t know if this is what you mean.. but I tried to understand it.

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2 years ago
A triangle has two sides of length 1 and 8. What is the smallest possible whole-number length for the third side?
valkas [14]

Answer:

8

Step-by-step explanation:

For the smallest possible length, this has to be one of the shorter sides. Let the length of this side be x.

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2 years ago
I will mark Brainliest!! 87 Points!!
DIA [1.3K]
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  • vertical expansion by a factor of 3 (multiplication by 3)
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  • shift down 1 unit (add -1 to the function value)

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<h3>f(x) = -1/4·2^(x+1) -1</h3>

You may notice this is the same as the previous question, but with the vertical expansion factor 1/4 instead of 3, and the horizontal shift left instead of right.

  • reflection across the x-axis (multiplication by -1)
  • vertical compression by a factor of 4 (multiplication by 1/4)
  • shift to the left 1 unit (replace x with x+1)
  • shift down 1 unit (add -1 to the function value)

6 0
3 years ago
Read 2 more answers
Joel sells ice cream cones at the county fair. He has to rent the equipment for $28 and spent $.33 on a gradients for each accou
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Total $61.00

At $1.30 each you can guesstimate he'd have to sell almost 60 cones to break even.
OR
You can divide 1.30 into $61.00 for about 47 cones to break even. (I rounded up)

To make a profit he would either need to sell double that amount or he could raise the cost of his cone to $2.00 & make profit sooner.

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2 years ago
Which expression is equivalent to 64 − 9x2?
Cloud [144]
(8)2-(3x)2 is the correct formula
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3 years ago
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