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Jobisdone [24]
3 years ago
14

Factor completely. 21a^2 - 57a + 30

Mathematics
2 answers:
Kryger [21]3 years ago
8 0
The answer is 3(a-2)(7a-5)
hoa [83]3 years ago
5 0
<span><span> 21a2-57a+30</span> </span>Final result : 3 • (a - 2) • (7a - 5) <span>
hope i helped

</span>

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18 is 60% of what number
Ksenya-84 [330]
18 is 60% of 30. I know this because 10% of 30 is 3 and 3 * 6 is 18
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3 years ago
Heron wants to buy a video game. The price is regularly priced at 55 dollars. The store has a discount of 20% off and a sales ta
nadezda [96]

The amount paid by Heron for the video game  is $46.64.

Step-by-step explanation:

Here, the marked price of the video game  = $55

The discount percentage on the video game  = 20%

Calculating 20% of the $55, we get:

\frac{20}{100}  \times 55  = 11

So, the discount offered on the video game  = $11

Selling Price  = Marked Price  - Discount

                        =$55 - $11 = $44

Now,  the tax percentage on the video game  = 6%

Calculating 6% of the $44, we get:

\frac{6}{100}  \times 44  =2.64

So, the tax  on the video game  = $2.64

New Selling Price  = Selling Price  +  Tax

                        =$44 + $2.64  = $46.64

So, the amount paid by Heron for the video game  is $46.64.

4 0
3 years ago
A cup of chocolate chips is 9 ounces a recipe calls for 3 and 3 4ths of ups how much ounces of chocolate are needed
Zinaida [17]
33.75 i think
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33.75
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convert the linear equation 3x-2y=5 to point slope form. use the point with an x-coordinate equal to 1
Mademuasel [1]
When x = 1,  y = (5 - 3) / -2  = -1 ,  let x1 = 1 and y1 = -1
2y = 3x - 5
so slope = 3/2

y - y1 = m(x - x1)

y -(-1) = (3/2)(x - 1)

y + 1 = 3/2 ( x - 1)  <-----    answer



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