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xenn [34]
3 years ago
15

How many unit cubes are needed to

Mathematics
1 answer:
marusya05 [52]3 years ago
3 0

Answer:

b

Step-by-step explanation:

3 x 5=15

15 x 9= 135

135=b

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5 * 20 +7= 67..................
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Kendall bought a coat that was on sale for 20% off its original price. She paid $76.32 for the coat, whichincluded a 6% sales ta
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3 years ago
Select the correct steps for factoring the polynomial 5x^3-40
erastovalidia [21]

Answer:

5 (x-2) (x²+2x+4)

Step-by-step explanation:

Stating with 5x³ - 40, the want to simplify the x part by extracting the common factor, so

5x³ - 40 = 5(x³-8)

Now to factor x³-8, we can rewrite it in the format x³-2³, right?

And there's a formula to obtain x³-y³, which is the Difference of Cubes formula that goes like this:  x³-y³= (x-y)(x²+xy+y²)

So, we apply this formula replacing the y with our value of 2:

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So, overall, we have 5x³ - 40 = 5 (x-2) (x²+2x+4)

7 0
3 years ago
Polly surveyed 850 teenagers to find out their favorite type of music. She found that 32% of the teenagers surveyed like hard ro
Sergeu [11.5K]

Answer:

Part A: 272 teenagers surveyed like hard rock.

Part B: 200 is the total number of teenagers that Damian surveyed.

Part C: Polly surveyed 850 teenagers to find out their favorite type of music. She found that 132% of the teenagers surveyed like hard rock.

Step-by-step explanation:

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3 years ago
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Answer:

(

Step-by-step explanation:

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3 years ago
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