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Tresset [83]
3 years ago
9

Explain the identity property and how it is used. What are the identity elements for addition and multiplication?

Mathematics
1 answer:
Lunna [17]3 years ago
4 0
<span>The identity element when applied does not change the other elements hence in multiplication 1x7=7 and 1x5=5 the elements 5 and 7 do not change for addition its 0 such as 0+10=10.

</span><span>Identity for multiplication is 1, for addition its 0</span>
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The distance travelled in (m) by a ball dropped from a height are 128/9,32/3,8,6,...
Allushta [10]

Answer: it will trave 56.89 meters before coming to rest.

Step-by-step explanation:

This is a geometric progression since the distance travelled (height) by the ball is reducing by a constant ratio, r. Since the number of times that the ball will bounce is infinite, then we would apply the formula for determining the sum of the terms in a geometric progression to infinity which is expressed as

S = a/(1 - r)

where

S = sum of the distance travelled by the ball

a = initial distance or height of the ball

r = common ratio

From the information given,

a = 128/9

r = (32/3)/(128/9) = 0.75

Therefore,

S = (128/9)/(1 - 0.75) = 56.89 meters

7 0
3 years ago
The area of the circle above is 314 units2. What is the circumference of the circle? use 3.14
aleksandrvk [35]

Answer:

r =\sqrt{\frac{314 units^2}{3.14}} = 10 units

And the circumference is given by this formula:

C = 2\pi r

And replacing the value fo r we got:

C = 2\pi *10 units = 62.8 units

And then the final answer would be 62.8 units for the circumference.

Step-by-step explanation:

For this case we know that the area for a circle is given by:

A = \pi r^2

And we know that A = 314 units^2

We can find the radius from the previous formula like this:

r^2 = \frac{A}{\pi}

r^2 = \frac{314 units^2}{\pi}

r =\sqrt{\frac{314 units^2}{3.14}} = 10 units

And the circumference is given by this formula:

C = 2\pi r

And replacing the value fo r we got:

C = 2\pi *10 units = 62.8 units

And then the final answer would be 62.8 units for the circumference.

8 0
3 years ago
The figure is a regular polygon, solve for x.<br> (7x +31)
Alika [10]

Answer:

7 x + 3 +24

Step-by-step explanation:

The answer is 7 x + 3 =24 because its a problem solving

6 0
2 years ago
Find the value of variable in the figures below. round answers to the nearest hundredth
Setler79 [48]
Es a más v. Más c meno aigual 22’w
8 0
3 years ago
5/8-1/2= simplest form
lubasha [3.4K]
Answer is 4\8 because all u have to do is just change the denominator
4 0
4 years ago
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