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alukav5142 [94]
3 years ago
5

Identify the property:

Mathematics
1 answer:
Lorico [155]3 years ago
6 0

Answer:1) commutative property of addition

Step-by-step explanation:

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1161.90 to the nearest hundred
forsale [732]
1 thousand
1 hundred---- need to round up 
6 tens 
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Would be rounded up to 1200
Hope this helps 
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3 years ago
If the diameter of a circle is 5 centimeters, how long is the arc subtended by an angle measuring 60° ?
s2008m [1.1K]
<span>circumference = 5 * PI = </span><span><span><span>15.7079632679 </span> </span> </span>
<span>arc length   =   circumference • [central angle (degrees) ÷ 360]
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8 0
3 years ago
Read 2 more answers
I need some assistance please
zzz [600]

Answer:

2x + y = 20 .     y=3x

2x + 3x = 20

5x = 20

x/5 = 20/5

x = 4

(4,0)

6 0
3 years ago
Round .086 to leftmost nonzero digit
alekssr [168]
If it's a whole number it would be 1 and of it wasn't it's .1 or .09
6 0
3 years ago
Use the method of completing the square to write the equation of the given parabola in this form:
siniylev [52]
Formula is y = a(x-h)^2 + k

Where h is 1 and k is 1

f (x) = a(x-1)^2 + 1

-3 = a(0-1)^2 + 1

-3 = a(-1)^2 + 1

-3 = a(1) + 1

-3 - 1 = a

-4 = a

a = -4

A must be equal to -4

y = -4(x-1)^2 + 1

0 = -4(x-1)^2 + 1

4(x^2 - 2x + 1) - 1 = 0

4x^2 - 8x + 4 - 1 = 0

4x^2 - 8x + 3 = 0

4x^2 - 8x = -3

Divide fpr 4 each term of the equation....x^2 - 2x = -3/4

We must factor the perfect square ax^2 + bx + c which we don't have. We must follow the rule (b/2)^2 where b is -2....(-2/2)^2 = (-1)^2 = 1 and we add up that to both sides

x^2 - 2x + 1 = -3/4 + 1

x^2 - 2x + 1 = 1/4

(x-1)^2 = 1/4

square root both sides x-1 = (+/-) 1/2

x1 = +1/2 + 1 = 3/2

x2 = -1/2 + 1 = 1/2

x-intercepts are 1/2 and 3/2, in form (3/2,0); (1/2,0)
6 0
3 years ago
Read 2 more answers
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