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4 years ago

Which property is (8•9)b=8(9b)

Mathematics

1 answer:

Ludmilka [50]4 years ago

6 0

Answer:

Associative Property

Step-by-step explanation:

When the order of operands remains the same, all operations are identical (multiplication, or addition), and only the parentheses change places, the property involved is the <em>associative property</em>.

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What ordered pairs are the solutions of the system of equations shown in the graph below

7nadin3 [17]

Answer:

Step-by-step explanation:

One solution would be (1, -4), and the other would be (4, -7).

6 0

4 years ago

Read 2 more answers

Noah wants to buy a skateboard that usually sells for $79.99. All merchandise is discounted by 12%. What is the total cost of th

beks73 [17]

Answer:

$74.36 sorry all i got

Step-by-step explanation:

First, we need to determine the sales price of the skateboard. The formula for find the discounted prices is:

Where:

is the sales price of the item: what we are solving for in this part of the problem.

is the regular price of the item: $79.16 for this problem.

is the discount rate: 12% for this problem. "Percent" or "%" means "out of 100" or "per 100", Therefore 12% can be written as

100

Substituting and calculating

gives

79.16

100

79.16

949.92

100

79.16

9.4992

69.6608

69.66

rounded to the nearest cent.

Now we can find the total price of the item with tax included. The formula for this is

#t = p + (p * r)

Where, this time:

is the total price: what we are solving for in this problem.

is the price of the item: it is the sales price of the item for this problem which is $69.66

is the tax rate: 6.75% or, using the same rule as in the formula above:

6.75

100

Substituting and calculating

gives:

69.66

6.75

100

69.66

470.205

100

69.66

4.70205

74.36205

74.36

rounded to the nearest cent.

Noah would pay a total cost (with the discount and after tax) of $74.36

5 0

3 years ago

Read 2 more answers

Find the complete factored form of the polynomial -8a^4b^5+4a^2b^4

Zigmanuir [339]

Answer:

The completely factored polynomial is:

⇒ $-4a^2b^4(2a^2b-1)$

Step-by-step explanation:

Given polynomial:

$-8a^4b^5+4a^2b^4$

To factor the given polynomial completely.

Solution:

In order to factor the given polynomial, we will find the greatest common factor of the terms and then factor them out by dividing the term by its G.C.F.

The factors can be listed as:

$-8a^4b^5=-1\times 2\times 2\times 2\times a\times a\times a\times a\times b\times b \times b\times b \times b$