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zzz [600]
3 years ago
9

Expanding brackets (x + 3)(x + 10)

Mathematics
2 answers:
Anit [1.1K]3 years ago
7 0

Answer:

=x²+13x+30 is the answer

Step-by-step explanation:

=(x+3)(x+10)

opening the brackets by multiplying

=x(x+10)+3(x+10)

=x²+10x+3x+30

=x²+13x+30

i hope this will help you :)

Katarina [22]3 years ago
6 0

Answer:

x² + 13x + 30

Step-by-step explanation:

(x + 3) (x + 10)

Expand the brackets.

x(x + 10) + 3(x + 10)

x² + 10x + 3x + 30

Add like terms.

x² + 13x + 30

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The formula s = StartRoot StartFraction S A Over 6 EndFraction EndRoot gives the length of the side, s, of a cube with a surface
jeyben [28]

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2.83 inches

Step-by-step explanation:

The formula for surface area of cube = 6s²

Where

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14.14 inches - 11.13 inches

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5 0
3 years ago
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a computer costs 400 dollars. Its 20 percent off with an additional 5 percent off, there's no sales tax. How much does the compu
zhenek [66]

The computer costs $304 now.

Step-by-step explanation:

Given,

Cost of computer = $400

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Price after first discount = 400-80 = $320

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Amount of additional discount = 5% of price after first discount

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Amount of additional discount = $16

Final cost = 320-16 = $304

The computer costs $304 now.

Keywords: discount, subtraction

Learn more about subtraction at:

  • brainly.com/question/10435816
  • brainly.com/question/10435836

#LearnwithBrainly

4 0
3 years ago
The graph represents the piecewise function
Mariulka [41]
Ok, so so we gots from x≤-1 and x≥1 for the bounds

hmm, the x≤-1 one

hmm, looks like the y intercept is -1 and the slope is 2/1
y=2x-1
test (-1,-3)
works
test (-2,-5)
works

yep

2x-1 is first blank



the other one

seems to have y intercept at 4 and slope of 1
y=1x+4
y=x+4
this works because I tested it



top left: 2x-1
top right: x≤-1 or x is less than or equal to -1
bottom left: x=4
bottom left: x≥1 or x is greater than or equal to 1
6 0
3 years ago
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