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Doss [256]
2 years ago
13

Apply the special factoring rules to factor the following binomial

Mathematics
1 answer:
ipn [44]2 years ago
8 0
<h3>Answer:  Choice A</h3>

It factors to (x - 0.9)(x + 0.9)

=================================================

Work Shown:

x^2 - 0.81\\\\x^2 - (0.9)^2\\\\(x-0.9)(x+0.9)

I used the difference of squares factoring rule. The order of the factors doesn't matter. So an alternative answer is (x+0.9)(x-0.9)

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You randomly select one card from a​ 52-card deck. Find the probability of selecting a red three or a black two.
sammy [17]
The answer is 2/52 or if you want a rounded up answer it is 1/26
7 0
3 years ago
Rita makes and sells necklaces. The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make
Lisa [10]

9514 1404 393

Answer:

  The equation should be 8 (x minus 2.75) = 78, and she needs to sell each necklace for $12.50.

Step-by-step explanation:

The contribution margin of each necklace is the difference between its selling price (x) and its cost (2.75). Then the total profit from 8 necklaces would be ...

  8(x -2.75)

If Rita wants that profit to be $78, then she needs to solve the equation ...

  8(x -2.75) = 78 . . . . correct equation

The solution is ...

  x -2.75 = 9.75 . . . . divide by 8

  x = 12.50 . . . . . . . . add 2.75

She needs to sell each necklace for $12.50.

4 0
3 years ago
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A broken rectangular shaped window is being replaced. It measures 24 inches by 18 inches. How many square inches of glass are ne
olya-2409 [2.1K]
Sorry, I can't draw a picture, but I can help answer the question...

The way to determine the area of a square or rectangle is to multiply the base and the height, which in this case, is 24 and 18. So 24 times 18 is 432. Therefore, the amount of glass needed to repair the window is 432 inches squared.

Hope that helps!

8 0
3 years ago
What is 10m + 12n - 5m + 3n + 5
noname [10]

Answer:

35 if the n are m but while im her pla help me with my question i rilly need the answer its ergent thnx

Step-by-step explanation:

8 0
2 years ago
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Answer:

Step-by-step explanation:

What is the equation of the line that passes through the point (2,−7)and has a slope of −4

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2 years ago
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