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xxMikexx [17]
3 years ago
13

Simplify 3x^2(7x^2 + 2x -4)

Mathematics
1 answer:
arsen [322]3 years ago
6 0

Answer:

21x^4+6x^3-12x^2

Step-by-step explanation:

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Jim is enclosing a rectangular garden with 170 feet of fencing. The length of the garden is 10 feet more than twice it's width,
Hunter-Best [27]

Answer: Area = 1500 feet^2

Step-by-step explanation:

Jim is enclosing a rectangular garden with 170 feet of fencing. This means the perimeter of the rectangular garden =170 feet

Let length = x

Let width = w

The length of the garden,x is 10 feet more than twice it's width, w. This means

x =10+2w---------1

Perimeter = 2x+2w =170---------2

Putting equation 1 in equation 2,

2(10+2w) +2w= 170

20 + 4w +2w = 170

6w = 170-20=150

w = 150/6

= 25feet

Put w=25 in equation 1

x =10 +2×25= 10+50=60 feet

Area = length × width = x×w

= 60×25=1500feet^2

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3 years ago
How many real fifth roots does - 1,024 have?
atroni [7]
I think 1,024 has 4.
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3 years ago
2/7 x 42 using tape diagram
Gekata [30.6K]
The answer to your equation: 2/7 x 42 = 12
12 is the correct answer
6 0
3 years ago
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The starting line for a race in Cass is 2.4 miles from the finish line. On a map of the course,
DaniilM [7]

Answer:

5 in. = 2 mi.

Step-by-step explanation:

2.4mi  = 6in

1 mi = 2.5in

2.5 inches = 1mile

Convert to whole #'s as the question asks

5 in. = 2 mi

-- Gage Millar, Algebra 1/2 Tutor (Pending Pre-Calc Tutor)

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2 years ago
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Step-by-step explanation:

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