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Brrunno [24]
3 years ago
13

How do the identity and associative property work?

Mathematics
1 answer:
Ivan3 years ago
3 0

Answer:

Step-by-step explanation:

The associative property is helpful while adding or multiplying multiple numbers. By grouping, we can create smaller components to solve. It makes the calculations of addition or multiplication of multiple numbers easier and faster. Here, adding 17 and 3 gives 20.

the identity property of 1 says that any number multiplied by 1 keeps its identity. In other words, any number multiplied by 1 stays the same. The reason the number stays the same is because multiplying by 1 means we have 1 copy of the number.

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Which collection of three side lengths will not form a triangle
dezoksy [38]

Answer:

Any collection of lengths (a, b, c) which do not satisfy the triangle inequalities.

Step-by-step explanation:

Any collection (a, b, c) which do not satisfy the triangle inequalities. The inequalities:

a + b > c

b + c > a

a + c > b

You will need to test all of your options on the three inequalities above. If any one of the three fails, the collection won't work.

4 0
3 years ago
Can someone help me out with this
4vir4ik [10]

Answer:

1/20 divided by 950

Step-by-step explanation:

4 0
2 years ago
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In each box, 15% of the total candies are cherry flavored. In a box of 20 candies, how many are cherry flavored?
adoni [48]
3 are cherried flavored.
6 0
2 years ago
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A triangle with sides of 2, 3, and 4 is an obtuse triangle. T/F
Ilia_Sergeevich [38]

Answer:

True

Step-by-step explanation:

We actually can use Sine, Cos, or Tangent to solve for the angles, which would give the angle, but graphing it came up with an Obtuse Scalene triangle.

4 0
2 years ago
A simple random sample of 60 items resulted in a sample mean of 80. The population standard deviation is σ = 15. a. Compute the
Kaylis [27]

Answer:

a) (76.21,83.79)

b) (77.32,82.68)    

c) Interval decreases    

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 60

Sample mean = 80

Sample standard Deviation, s = 15

a) 95% Confidence interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

80 \pm 1.96(\dfrac{15}{\sqrt{60}} ) = 80 \pm 3.79 = (76.21,83.79)

b) Sample size, n = 120

95% Confidence interval:

80 \pm 1.96(\dfrac{15}{\sqrt{120}} ) = 80 \pm 2.68 = (77.32,82.68)

c) As observed increasing the sample size, the confidence interval become smaller.

8 0
3 years ago
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