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3 years ago

2+17+8 rewritten correctly using the commutative property and then simplified correctly

Mathematics

2 answers:

zheka24 [161]3 years ago

7 0

Answer:

Step-by-step explanation:

I am sorry this is to confusing for me

miv72 [106K]3 years ago

7 0

Answer:

27.

Step-by-step explanation:

I am assuming 'correctly' means in ascending order.

Using the commutative property of addition:

2 + 17 + 8

= 2 + 8 + 17

= 10 + 17

= 27.

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20 pen cost $1.60 what is the unit rate

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1.60/20 =0.08

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Is the product of fifteen negative integers positive or negative?

enot [183]

Answer:

the sign of the product of 15 negative numbers will be negative

Step-by-step explanation:

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The product of odd numbers is odd and the product of even numbers is even.

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3 years ago

What is the value of f(x)=2•2^x for f(-2)

Zigmanuir [339]

Answer:

The value of f(-2) is 1/2 or it can be written as 0.5.

Step-by-step explanation:

The given function is

$f(x)=2\cdot 2^x$

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Substitute x=-2 in the given function to find the value of f(-2).

$f(-2)=2\cdot 2^(-2)$

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3 years ago

Six equilateral triangles are connected to create a regular hexagon. The area of the hexagon is 24a^2 – 18 square units. Which i

netineya [11]

we know that

The area of the hexagon is equal to the sum of the areas of the six equilateral triangles

Let

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$6x=24a^{2} -18$

Divide by $6$ both sides

$x=4a^{2} -3$ -------> area of one equilateral triangle

To find an equivalent expression for the area of the hexagon based on the area of a triangle, multiply the area of one equilateral triangle by $6$

$6*(4a^{2} -3)$

therefore

the answer is

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3 years ago

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If a particular set of data is approximately normally distributed, we would find that approximately A) 2 of every 3 observations

Kryger [21]

Answer:

A) No

B) No

C) Yes

Step-by-step explanation:

A) 2 out of three observations is equal to

2/3 = 0.67 or 67 %

We know tha the interval

[μ - σ/2 , μ + σ/2] is approximately 68.3 % of the values

Therefore 2 out of 3 would not fall in that interval

4 out of 5 is 4/5 = 0,8 or 80 % If we examine the interval

[μ - σ , μ + σ ] which is approximately 95. Then value 4/5 ( 0,8)

Therefore 0,8 is out of the interval

C) 19/20 = 0,95 or 95 % is almost exact the value for the interval

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